user manual - sma fuel save controller 2files.sma.de/dl/26900/fsc20-ba-en-22.pdf · sma solar...

FSC20-BA-en-22 | 100590-00.03 | Version 2.2ENGLISH

User ManualSMA FUEL SAVE CONTROLLER 2.0

Legal Provisions SMA Solar Technology AG

User ManualFSC20-BA-en-222

Legal ProvisionsThe information contained in these documents is the property of SMA Solar Technology AG. Any publication, whetherin whole or in part, requires prior written approval by SMA Solar Technology AG. Internal reproduction used solely forthe purpose of product evaluation or other proper use is allowed and does not require prior approval.

SMA WarrantyYou can download the current warranty conditions from the Internet at www.SMA-Solar.com.

Software licensesYou will find the software licenses for the installed software modules on the Internet at www.SMA-Solar.com.

TrademarksAll trademarks are recognized, even if not explicitly identified as such. Missing designations do not mean that aproduct or brand is not a registered trademark.

SMA Solar Technology AGSonnenallee 134266 NiestetalGermanyTel. +49 561 9522-0Fax +49 561 9522-100www.SMA.deEmail: [email protected]: 6/21/2018Copyright © 2018 SMA Solar Technology AG. All rights reserved.

http://www.SMA-Solar.com


Table of ContentsSMA Solar Technology AG

User Manual 3FSC20-BA-en-22

Table of Contents1 Information on this Document..................................................................................................... 6

1.1 Validity ............................................................................................................................................................. 61.2 Target Group ................................................................................................................................................... 61.3 Levels of warning messages............................................................................................................................ 61.4 Symbols in the Document................................................................................................................................ 61.5 Typographies in the document ....................................................................................................................... 71.6 Designation in the document .......................................................................................................................... 71.7 Explanation of Used Terms ............................................................................................................................. 71.8 Additional Information..................................................................................................................................... 7

2 Safety ............................................................................................................................................ 82.1 Intended Use.................................................................................................................................................... 82.2 IMPORTANT SAFETY INSTRUCTIONS......................................................................................................... 8

3 Product Overview ........................................................................................................................ 113.1 Functions........................................................................................................................................................... 113.2 Structure ........................................................................................................................................................... 123.3 Key Switch ....................................................................................................................................................... 133.4 Light Repeaters................................................................................................................................................. 14

4 User Interface ............................................................................................................................... 154.1 Requirements for the user interface display ................................................................................................... 154.2 Design of the User Interface ........................................................................................................................... 164.3 Buttons in the header....................................................................................................................................... 174.4 User Groups and User Rights ......................................................................................................................... 184.5 Home Page for User Group "User" ................................................................................................................ 194.6 Home Page for User Group "Installer" ........................................................................................................... 204.7 Configuration Wizard ..................................................................................................................................... 20

4.7.1 Structure of the Configuration Wizard ........................................................................................................... 204.7.2 Buttons in the Configuration Wizard .............................................................................................................. 21

5 Logging In and Out of the User Interface .................................................................................. 23

6 Configuration................................................................................................................................ 256.1 Changing Passwords....................................................................................................................................... 256.2 Setting the User Interface Language .............................................................................................................. 256.3 Setting the System Time................................................................................................................................... 256.4 Setting Up Access via the Internet .................................................................................................................. 26

7 System Monitoring ....................................................................................................................... 287.1 Display Values of the Entire PV Diesel Hybrid System .................................................................................. 287.2 Display Values of the Gensets ........................................................................................................................ 307.3 Display Values of the PV Power Plant ............................................................................................................ 327.4 Storage System Display Values ...................................................................................................................... 337.5 Display Values of the Measurement Devices................................................................................................. 347.6 Performance Diagrams of the PV Diesel Hybrid System ............................................................................... 357.7 Display Values for Dynamic Genset Shutdown............................................................................................. 377.8 Status of the Digital Switching Inputs and Outputs ....................................................................................... 397.9 Display Values for Communication with SCADA System ............................................................................. 40

Table of Contents SMA Solar Technology AG


7.10 Device Information .......................................................................................................................................... 407.11 Retrieving Display Values................................................................................................................................ 407.12 Processing Event Messages ............................................................................................................................ 417.13 Operating Mode and Setpoints ..................................................................................................................... 43

7.13.1 Overview of Operating Modes and Setpoints .............................................................................................. 437.13.2 Displaying Setpoints and Actual Values......................................................................................................... 457.13.3 Configuring the Operating Mode................................................................................................................... 467.13.4 Specification of Setpoints for PV Power Plant by SCADA System ................................................................ 46

8 System Settings............................................................................................................................. 488.1 Parameters for the Utility Grid ........................................................................................................................ 488.2 Adjustable parameters for gensets in the Fuel Save Controller.................................................................... 48

8.2.1 Parameters for Gensets with Genset Controller ComAp InteliGen NTC or ComAp InteliSys NTC ........... 488.2.2 Parameters for Gensets with the Genset Controller AGC ............................................................................. 508.2.3 Parameters for Gensets with Genset Controller DSE8610 ........................................................................... 508.2.4 Parameters for gensets with genset controller easYgen-3000 via the CAN network ................................. 518.2.5 Parameters for Gensets with Genset Controller easYgen-3000 via the ESENET Gateway ....................... 538.2.6 Parameters for Gensets without the Genset Controller.................................................................................. 54

8.3 Settings on the Genset Controllers ................................................................................................................. 558.3.1 Settings on ComAp InteliGen NTC or ComAp InteliSys NTC Genset Controllers ...................................... 558.3.2 Settings on DSE8610 Genset Controllers or DSE8610 MKII ...................................................................... 588.3.3 Settings on Woodward easYgen 3000 Genset Controllers......................................................................... 58

8.4 Parameters for the PV Power Plant ................................................................................................................. 608.5 Parameters for the Storage System ................................................................................................................ 628.6 Settings on the Measurement Devices ........................................................................................................... 63

8.6.1 General Settings on Measurement Devices ................................................................................................... 638.6.2 Detailed Settings on Measurement Devices for Internal Measurement Modules of the Fuel Save

Controller .......................................................................................................................................................... 648.6.3 Detailed Settings on Measurement Devices for Data Acquisition Modules................................................. 66

8.7 Settings on the Temperature and Irradiation Sensors ................................................................................... 688.8 Stop of the Fuel Save Controller via Switch Input DI 7................................................................................. 698.9 Handling System Settings................................................................................................................................ 70

8.9.1 Adjusting the System Settings .......................................................................................................................... 708.9.2 Ending System Settings .................................................................................................................................... 718.9.3 Saving System Settings .................................................................................................................................... 718.9.4 Loading System Settings .................................................................................................................................. 728.9.5 Deleting System Settings.................................................................................................................................. 738.9.6 Activating/Deactivating Devices..................................................................................................................... 73

9 System Control ............................................................................................................................. 759.1 Genset control ................................................................................................................................................. 75

9.1.1 Parameters for the Minimum Genset Load ..................................................................................................... 759.1.2 Parameters for Reverse Power Protection of the Gensets .............................................................................. 759.1.3 Parameters for the Supply of Sufficient Reserve Power via Gensets............................................................. 76

9.2 Controlling the PV power plant....................................................................................................................... 789.2.1 Parameters for Power Factor Control for the Gensets Using the Reactive Power Release of the PV

Inverters ............................................................................................................................................................ 789.2.2 Control of the PV Power Plant Reactive Power According to Electrical Consumption................................. 79

9.3 Controlling the Battery Inverter ....................................................................................................................... 819.3.1 State-Of-Charge Control of the Battery .......................................................................................................... 819.3.2 Setpoints for the Storage System According to the Rise and Drop of PV Power ......................................... 839.3.3 Enables function BatChrCtrl. Default ON....................................................................................................... 83

9.4 Processing of the received measured values and parameters...................................................................... 849.4.1 MPP Estimate for PV Power Plant .................................................................................................................... 849.4.2 Selecting a Measuring Point for Control ........................................................................................................ 85

Table of ContentsSMA Solar Technology AG


9.4.3 Other Parameters for Processing the Received Measured Values and Parameters .................................... 869.5 Calculation of the parameters to be output ................................................................................................... 87

9.5.1 Setpoint Change Rate for PV Inverters and Gensets ..................................................................................... 879.5.2 Options for Specifying the Reserve Power Setpoint of the Gensets ............................................................. 879.5.3 Conditions for the Connection and Disconnection of the PV Inverters ......................................................... 889.5.4 Procedure for Connecting and Disconnecting the PV Inverters..................................................................... 899.5.5 Switching the Battery Inverters On and Off ................................................................................................... 90

9.6 Control of the Grid Feed-In ............................................................................................................................. 919.7 Dynamic Genset Shutdown ............................................................................................................................ 92

9.7.1 General Settings of the Dynamic Genset Shutdown ..................................................................................... 929.7.2 Parameters for PV Yield Forecast .................................................................................................................... 939.7.3 Parameters for Frequency Control .................................................................................................................. 949.7.4 Parameters for Voltage Control....................................................................................................................... 95

9.8 Setting Parameters for System Control ........................................................................................................... 96

10 System History.............................................................................................................................. 9810.1 Overview of the Data Structure ...................................................................................................................... 9810.2 Viewing System History Data.......................................................................................................................... 98

11 Starting and Stopping the System .............................................................................................. 9911.1 Stopping the SMA Fuel Save Controller and PV Power Plant ...................................................................... 9911.2 Starting the PV Power Plant and SMA Fuel Save Controller ........................................................................ 9911.3 Restarting the SMA Fuel Save Controller and PV Power Plant.....................................................................10011.4 Installing a Valid Software License.................................................................................................................101

12 Cleaning........................................................................................................................................102

13 Contact ..........................................................................................................................................103

1 Information on this Document SMA Solar Technology AG


1 Information on this Document1.1 ValidityThis document is valid for:

• FSC-20-M (SMA Fuel Save Controller 2.0) from software version 2.06

1.2 Target GroupThe tasks described in this document must only be performed by qualified persons. Qualified persons must have thefollowing skills:

• Knowledge of how the product works and is operated• Training in how to deal with the dangers and risks associated with installing, repairing and using electrical devices

and installations• Training in the installation and commissioning of electrical devices and installations• Knowledge of all applicable laws, standards and directives• Knowledge of and compliance with this document and all safety information

1.3 Levels of warning messagesThe following levels of warning messages may occur when handling the product.

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

Indicates a situation which, if not avoided, can result in property damage.

1.4 Symbols in the DocumentSymbol Explanation

Information that is important for a specific topic or goal, but is not safety-relevant

Indicates a requirement for meeting a specific goal

Desired result

A problem that might occur

Example

1 Information on this DocumentSMA Solar Technology AG


1.5 Typographies in the documentTypography Use Example

bold • Messages• Terminals• Elements on a user interface• Elements to be selected• Elements to be entered

• Connect the insulated conductorsto the terminals X703:1 toX703:6.

• Enter 10 in the field Minutes.

> • Connects several elements to beselected

• Select Settings > Date.

[Button][Key]

• Button or key to be selected or pressed • Select [Enter].

1.6 Designation in the documentComplete designation Designation in this document

SMA Fuel Save Controller 2.0 Fuel Save Controller, Produkt

Sunny Central Storage Battery inverter

Sunny Tripower, Sunny Central CP XT PV inverter

1.7 Explanation of Used TermsTerm Explanation

Genset Electric generator with combustion engine

Genset controller System for the regulation and control of electric generators with combustion en-gine

1.8 Additional InformationFor more information, please go to www.SMA-Solar.com.

Title and information content Type of information

"PUBLIC CYBER SECURITY - Guidelines for a Secure PV System Communication" Technical information

"SMA FUEL SAVE CONTROLLER Modbus® Interface"Information on the commissioning and configuration of the SMA Modbus inter-face

Technical Information

"Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0"Communication interface requirements and Genset Controller configuration

Technical Information

http://www.sma-solar.com

2 Safety SMA Solar Technology AG


2 Safety2.1 Intended UseTogether with SMA inverters, the Fuel Save Controller is a system solution for the installation of PV diesel hybridsystems through the integration of PV power plants into local utility grids based on gensets. The Fuel Save Controllercontinuously monitors the power output of the SMA inverters as well as the operating state of the gensets and loads.On this basis, the SMA Fuel Save Controller controls the SMA inverters and adjusts its output power, where necessary.This will ensure a stabile operation of the PV diesel hybrid system.The product is suitable for indoor and outdoor use.Only use gensets in conjunction with the Fuel Save Controller which fulfill the reverse power limits of theFuel Save Controller.The power management and the communication interface of the gensets must be compatible with theFuel Save Controller for optimal operation of the PV diesel hybrid system. Therefore, the combined use of theFuel Save Controller and the gensets must be coordinated with SMA Solar Technology AG (see technical information"Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0").The current and voltage measuring of the SMA Fuel Save Controller is designed for four-conductor utility grids withthree line conductors and one neutral conductor as well as for three-conductor utility grids with three line conductors. Ifanother grid type is used, the connection of the current transformers must be coordinated with SMA Solar TechnologyAG.The Fuel Save Controller has a Modbus/TCP and CAN interface for communicating with peripheral devices. Ensurethat all communication between the Fuel Save Controller and the gensets takes place via either the Modbus/TCPinterface or the CAN interface.The inverter data must only be retrieved via the Fuel Save Controller. During commissioning, the correct setup of thesystem network is documented. Unauthorized configuration changes of the system network after commissioning willresult in any warranty or warranty claims becoming null and void.Use this product only in accordance with the information provided in the enclosed documentation and with the locallyapplicable standards and directives. Any other application may cause personal injury or property damage.Alterations to the product, e.g. changes or modifications, are only permitted with the express written permission ofSMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most casesterminate the operating license. SMA Solar Technology AG shall not be held liable for any damage caused by suchchanges.Any use of the product other than that described in the Intended Use section does not qualify as the intended use.The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place forfuture reference and observe all instructions contained therein.Suitable personal protective equipment has to be worn by all persons working on or with the product.The type label must remain permanently attached to the product.

2.2 IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONSThis section contains safety information that must be observed at all times when working on or with the product.The product has been designed and tested in accordance with international safety requirements. As with all electricalor electronical devices, there are residual risks despite careful construction. To prevent personal injury and propertydamage and to ensure long-term operation of the product, read this section carefully and observe all safetyinformation at all times.

2 SafetySMA Solar Technology AG


DANGER

Danger to life from electric shock due to live voltageDanger of electric shock if work is executed incorrectly or under fault conditions. An electric shock can lead todeath or serious injury.

• Externally disconnect the supply voltage and the measuring cables for the current- and voltage measurementbefore performing any work on the Fuel Save Controller.

• Observe the five safety rules when disconnecting the supply voltage:– Disconnect from voltage sources.– Ensure that the device cannot be reconnected.– Ensure that no voltage is present.– Ground and short-circuit the device.– Cover and isolate any adjacent live components.

NOTICE

Damage to the inverters, gensets or loads due to unauthorized accessParameters can be set incorrectly due to unauthorized access. When parameters are set incorrectly, technicalthresholds are being exceeded. An exceeding of technical thresholds can lead to damage of the inverters, gensetsor loads.

• Protect the product from unauthorized access.• Remove the keys from the door locks and from the key switch.• Store the keys in a safe place.• Ensure that only qualified persons are able to set parameters on the product.• Ensure that access via port forwarding from the external network to the product-internal router is deactivated.

NOTICE

Damage to the product due to sand, dust and moisture ingressSand, dust and moisture penetration can damage the product and impair its functionality.

• Only open the product if the humidity is within the thresholds and the environment is free of sand and dust.• Do not open the product during a dust storm or precipitation.• Close the product in case of interruption of work or after finishing work.• The product must only be closed during operation.• Only use the supplied cable glands when inserting cables.

NOTICE

Damage to the enclosure seal in subfreezing conditionsIf you open the product when temperatures are below freezing, the enclosure seals can be damaged. Moisture canpenetrate the product then.

• Only open the product if the ambient temperature is not below 0°C.• If a layer of ice has formed on the enclosure seal when temperatures are below freezing, remove it prior to

opening the product (e.g. by melting the ice with warm air). Observe the applicable safety regulations.

2 Safety SMA Solar Technology AG


NOTICE

Destruction of gensets due to customer communication with the inverterThe network capacities within the system network are reserved for communication between the Fuel Save Controllerand the inverter. The system network can be overloaded due to unauthorized customer communication with theinverters. Control commands of the Fuel Save Controller cannot be sent to the inverter anymore when the systemnetwork is overloaded. This may lead to reverse currents and the destruction of gensets.

• Only operate the system network as documented in the acceptance test during commissioning.• The inverter data can only be requested via Fuel Save Controller.

3 Product OverviewSMA Solar Technology AG


3 Product Overview3.1 FunctionsTogether with SMA inverters, the Fuel Save Controller is a system solution for the installation of PV diesel hybridsystems through the integration of PV power plants into local utility grids based on gensets. The Fuel Save Controllercontinuously monitors the power output of the SMA inverters as well as the operating state of the gensets and loads.On this basis, the SMA Fuel Save Controller controls the SMA inverters and adjusts its output power, where necessary.This will ensure a stabile operation of the PV diesel hybrid system.

SCADA

GENSETS

InternetModbus TCP

AC

*

SUNNY CENTRALSTORAGE

DATA ACQUISITIONMODULE

FUEL SAVECONTROLLER

SMA PV INVERTERWITH PV ARRAY

LOADS

UTILITY GRID(OPTIONAL)

Data transmission

Measurement

SENSOREN

Figure 1: Regulation principle of PV systems with Fuel Save Controller

The Fuel Save Controller performs the following tasks:• Monitoring the power and operating state of the gensets• Monitoring the loads and state of the local grid• Calculating suitable values for the maximum power of the inverters according to defined parameter settings and

the current status of gensets and loads• Control and communication interface to the inverters• Internal logging of all relevant system data (e.g. for local and remote monitoring)• Emergency shutdown of the PV inverters under fault conditions in the PV diesel hybrid system

The basic configuration enables communication with one higher-level genset control system and inverters of theSunny Tripower and Sunny Central CP series. Further devices (e.g. inverters of the Sunny Central Storage series) canbe installed in consultation with SMA Solar Technology AG. To ensure system stability at all times, theFuel Save Controller uses Modbus/TCP or CAN to monitor whether the gensets are connected to the local utility gridand what level of active power and reactive power the gensets are feeding into the grid.The Fuel Save Controller is equipped with a Modbus/TCP interface for local and remote monitoring as well as for thecommunication with peripheral devices. Depending on the configuration, it is possible to communicate with thefollowing peripheral devices:

• A higher-level control system with up to eight gensets

3 Product Overview SMA Solar Technology AG


• Controllers for up to eight gensetsThe power management and the communication interface of the gensets must be compatible with theFuel Save Controller for optimal operation of the PV diesel hybrid system. Therefore, the combined use of theFuel Save Controller and the gensets must be coordinated withSMA Solar Technology AG (see technicalinformation "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0").

• up to 64 inverters• a remote monitoring system (SCADA or user interface/FTP)

The Fuel Save Controller is also equipped with a CAN interface for communicating with up to eight gensets. Ensurethat all communication between the Fuel Save Controller and the gensets takes place via either the Modbus/TCPinterface or the CAN interface. The Fuel Save Controller is not designed to communicate with gensets via the Modbus/TCP interface and CAN interface at the same time.In combination with the system specifications defined during commissioning and the data from the load measurementsand grid analyses, the Fuel Save Controller calculates power values for active power and reactive power suitable forthe inverters. The power values are transmitted as setpoints to the PV inverters.For local and remote monitoring, the Fuel Save Controller logs data on the power and operating state of the invertersand the loads, and the power and operating state of the gensets. The logged data is saved in CSV format for100 days and can be accessed via the integrated FTP server.The Fuel Save Controller is equipped with up to three internal measurement modules. Each measuring module has onemeasuring system for voltage measurement and two measuring systems for current measurement. All measuringsystems records the measuring values via three conductors. During network analysis, the Fuel Save Controller uses themeasured values. Further measuring systems can be implemented via an optional Data Acquisition Module inconsultation with SMA Solar Technology AG.During commissioning of the Fuel Save Controller, the user has the possibility to activate various functions for stableand reliable operation such as minimum genset loading and power control range. In addition, it is possible to remotelymonitor all relevant measurement data, process data and the current system status by means of SCADA or a web-based interface.

3.2 StructureA

B

C

D

Figure 2: Design of the Product

Position Designation

A Key switch

3 Product OverviewSMA Solar Technology AG


Position Designation

B Operation light repeater

C Warning light repeater

D Type labelThe type label clearly identifies the product. The type label must remain permanently at-tached to the product. You will find the following information on the type label:

• Device type (Type)• Serial number (Serial No.)• Option code (Opt. Code)

Symbols on the Product and on the Type Label

Symbol Explanation

Beware of electrical voltageThe product operates at high voltages.

Beware of hot surfaceThe product can get hot during operation.

Observe the documentationObserve all documentation supplied with the product.

CE markingThe product complies with the requirements of the applicable EU directives.

WEEE designationDo not dispose of the product together with the household waste but in accordance with thedisposal regulations for electronic waste applicable at the installation site.

Grounding conductorThis symbol indicates the position for connecting a grounding conductor.

3.3 Key SwitchPosition Description

Start The operation can be started via the Start position.

Stop Before each stop, ensure that the current reserve power of the gensets is sufficient for supply-ing the power required by the loads. Genset overload may result in destruction of the gensets(see Section 11.1 "Stopping the SMA Fuel Save Controller and PV Power Plant", page 99).The operation can be stopped via the Stop position.

3 Product Overview SMA Solar Technology AG


3.4 Light RepeatersThe Operation and Warning indicator lights indicate the current operating state.

Operationlight repeater

Warning lightrepeater

Operating state Description

Both light repeater are flashingalternately.

BOOT The product is starting.

INIT The product is establishing communication with the otherdevices in the PV diesel hybrid system.

Flashing every1 seconds

is off STANDBY The product is in standby mode.

Flashing every0.5 seconds

is off MANUAL The product is in manual mode. The setpoint values forthe active and reactive power of the inverters can be setvia the user interface.

glowing is off OPERATE The product is in automatic mode and specifies the set-points for the active and reactive power of the inverters.If the product is connected to a SCADA system, it will usethe setpoints from the SCADA system in automatic mode.

glowing Flashing every1 seconds

SAFETY The product has switched to a safe state following an er-ror. The PV power can be reduced compared with opera-tion in automatic mode.

is off glowing ERROR There is an error in the product. Automatic operation ofthe PV diesel hybrid system is interrupted.

4 User InterfaceSMA Solar Technology AG


4 User Interface4.1 Requirements for the user interface display☐ A computer for displaying the user interface must be available.☐ The computer must be connected to the SMA Fuel Save Controller via Ethernet.☐ A web browser must be installed on the computer.☐ JavaScript must be enabled in the web browser.☐ In the operating system and in the web browser, anti-aliasing must be activated.☐ The IP address of the Fuel Save Controller sent from the DHCP server to the local network of the PV system

operator must be known.

Supported web browsers:• Microsoft Internet Explorer from version 9• Google Chrome from version 40

Display resolution:• Minimum: 800 pixels x 600 pixels• Recommended: from 1280 pixels x 1024 pixels

4 User Interface SMA Solar Technology AG


4.2 Design of the User Interface

A

BD

C

Figure 3: User interface (example)

Position Designation Explanation

A Header Enables access to the main functions of the user interface (see Section 4.3 "Buttons inthe header", page 17).Displays the current path (e.g., Home > Stations Plant Overview).

B Content area Depending on the selected page, display values, adjustable parameters or a combina-tion of display values and adjustable parameters are shown in the content area. Addi-tional buttons are available on individual pages.




C Status bar Displays the following information:• Graphical display of the operating state

(see Section 3.4 "Light Repeaters", page 14)• State: Operating state:

– BOOT: The product is starting.– INIT: The product is establishing communication with the other devices in the

PV diesel hybrid system.– STANDBY: The product is in standby mode.– MANUAL: The product is in manual mode. The setpoint values for the active

and reactive power of the PV power plant are set via the user interface.– OPERATE: The product is in automatic mode and specifies the setpoints for

the active and reactive power of the PV power plant. If the product isconnected to a SCADA system, it will use the setpoints from the SCADAsystem in automatic mode.

– SAFETY: The product has switched to a safe state following an error. The PVpower can be reduced compared with operation in automatic mode.

– ERROR: There is an error in the product. Automatic operation of the PV dieselhybrid system is interrupted.

• Access level: User group that you are logged in with• Software version: Current software version of the product• Serial Number: serial number of the device• Date and location

D Page and menuselection

Access to the various pages and menus of the user interface

4.3 Buttons in the headerSymbol Designation Description

Home Use this symbol to access the home page.

Return Use this symbol to go back to the previous page.

Plant* Use this symbol to select the Hybrid Plant Overview page. The Hy-brid Plant Overview page shows an overview of the display values for the PVdiesel hybrid system (see Section 7.1, page 28).

f(x ( Control * Use this symbol to set various parameters relating to system control (see Sec-tion 9, page 75).

Wizard* Use this symbol to select the configuration wizard and edit the system settings(see Section 8, page 48).



Symbol Designation Description

Export* Use this symbol to select the following functions:• Save current system settings (see Section 8.9.3, page 71)• Load saved system settings (see Section 8.9.4, page 72)• Delete saved system settings (see Section 8.9.5, page 73)

Logout Use this symbol to log out of the system.

* To use this button you must be logged in as an Installer.

4.4 User Groups and User RightsUser rights User group

User Installer

Retrieve values of the PV diesel hybrid system and its subsystems, e.g.the gensets, the PV power plant or the load controller (see Section 7"System Monitoring", page 28)

✓ ✓

Set parameters of the PV diesel hybrid system (see Section 8 "SystemSettings", page 48)

– ✓

Save, load and delete system settings (see Section 8, page 48) – ✓

Set control functions of the PV diesel hybrid system and subsystems(see Section 9 "System Control", page 75)

– ✓

Retrieve data for acquisition of measured values (see Section 10"System History", page 98)

✓ ✓

Retrieve event and error messages (see Section 10 "System History",page 98)

– ✓



4.5 Home Page for User Group "User"

Figure 4: Home page for user group User (example)

The home page for user group User shows an overview of all display values of the PV diesel hybrid system (seeSection 7.1 "Display Values of the Entire PV Diesel Hybrid System", page 28).



4.6 Home Page for User Group "Installer"

Figure 5: Home page for user group Installer (example)

Button Description

Plant Overview Access to system monitoring(see Section 7, page 28)

Control Functions Access to system control (see Section 9, page 75)

Configuration Wizard Access to system settings (see Section 8, page 48)

Parameter Files Save current system settings and load/delete saved system settings (see Section 8.9,page 70)

4.7 Configuration Wizard

4.7.1 Structure of the Configuration WizardTo use the configuration wizard you must be logged in as an Installer.



B

A

Figure 6: Home page of the configuration wizard (example)


A Automatic configuration The automatic configuration wizard guides you through the configurationof the entire PV diesel hybrid system. During initial commissioning of the PVdiesel hybrid system the automatic configuration wizard must be run com-pletely. In the Manual configuration area the completion status for eachsubsystem is displayed in %. Once the completion status has reached100% for all subsystems, automatic configuration is completed.

B Manual configuration After initial commissioning, use the manual configuration wizard to carryout settings on individual subsystems:

• Utility grid (see Section 8.1, page 48)• Gensets (see Section 8.2, page 48)• PV power plant (see Section 8.4, page 60)• Storage system (see Section 8.5, page 62)• Measurement devices (see Section 8.6, page 63)• Temperature and irradiation sensors (see Section 8.7, page 68)• Digital inputs and outputs (see Section 8.8, page 69)

In addition, the manual configuration wizard provides an overview of thecurrent system settings.

4.7.2 Buttons in the Configuration WizardTo use the configuration wizard you must be logged in as an Installer.

Button Description

Add new item Add device type, e.g. a type of inverter



Button Description

Adjust Adjust configuration of a subsystem

Apply Save system settingsThis saves all system settings in the active dialog. If you exit the active dialogwithout saving the system settings, any system settings made since the last savewill be discarded.

Continue Wizard Continue to the next dialog

Delete config. Delete configuration of a subsystem

Discard Discard system settingsAny system settings made in the active dialog and not saved by pressing the Ap-ply button will be discarded.

Done Close the active dialog and switch to the overview of current system settings

Remove item Remove device type, e.g. a type of inverter

Start Start automatic configuration wizard

View Show overview of current system settings

5 Logging In and Out of the User InterfaceSMA Solar Technology AG


5 Logging In and Out of the User Interface

Sign In

User group Default password

User 0000

Installer 1111

Requirements:☐ The IP address of the Fuel Save Controller (defined during commissioning) and the subnet mask must be known.☐ The computer used to display the user interface must have an IP address located in the same subnet as the IP

address of the Fuel Save Controller.

Example:

If the IP address of the Fuel Save Controller has been set e.g. to 172.16.1.21, the IP address for the computerwith the user interface could be e.g. 172.16.1.200. It is important that the subnet sections of both IP addresses172.16 tally.

NOTICE

Risk of damage to devices by entry of incorrect parametersIncorrect parameters may damage devices and result in system malfunctions in the PV diesel hybrid system. Alladjustable parameters are protected by the password of the user group Installer.

• Only a qualified person is permitted to set and adjust parameters.• Only give the password for the user group Installer to qualified persons.• Change the default passwords as soon as possible.• Read the description of the parameters carefully and follow all instructions relating to the settings options of the

parameters.

Procedure:1. Enter the IP address of the Fuel Save Controller marked with the extension :8080 (e.g., 172.16.1.21:8080) in

the address bar of the web browser and press Enter.☑ The home page of the user interface appears (see Section 4.5, page 19).

2. Log into user group User or Installer with the appropriate password for the user group:• When logging in for the first time, enter the default password of your user group.• If you have already changed the default password of your user group, enter the changed password.• Press the enter key.• Select the button [Login].

☑ The home page of the selected user group appears.✖ The message Login error appears.

The maximum number of logins for the selected user group has been reached.• To cancel the login, answer the question Would you like to send a force log in request? with No.• To resume the login, answer the question Would you like to send a force log in request? with Yes. This

notifies users that are already logged in of your request. You will then receive a message regarding thesuccess or failure of your request.

5 Logging In and Out of the User Interface SMA Solar Technology AG


Log outA maximum of 5 Usersand 1 Installer can be logged into the user interface simultaneously. Users are notautomatically logged out by closing the web browser. Therefore we recommend always logging out of the userinterface prior to closing the web browser.If a user has not shown any activity on the user interface for more than 30 minutes, this user will be warned that he isabout to be logged out automatically. If this warning is not acknowledged within 10 seconds, the user is automaticallylogged out.

Procedure:• Click the logout link in the header.

6 ConfigurationSMA Solar Technology AG


6 Configuration6.1 Changing Passwords

Figure 7: Dialog box Change Password

Requirements:☐ To change the password for the user group User, you must be logged in as User.☐ To change the password for the user group Installer, you must be logged in as Installer.

Procedure:1. To do this you must be logged in as Installer: Select the menu Plant Overview via the page and menu selection.2. Open the Password Settings menu via the page and menu selection. To do this, select the down arrow button

on the scroll bar next to the page and menu selection.3. Enter the current password in the entry field Current Password: and press the enter key.4. Enter the new password in the entry field New Password: and press the enter key.5. Enter the current password in the entry field Please repeat new Password: and press the enter key.6. Select the [Apply] button.

6.2 Setting the User Interface Language1. To do this you must be logged in as Installer: Select the menu Plant Overview via the page and menu selection.2. Open the Plant Overview menu via the page and menu selection.3. Open the General Settings menu via the page and menu selection.4. In the Select language drop-down list, select the desired language.5. Select the [Apply] button.

6.3 Setting the System TimeThe system time can be set via the parameters of the category SNTP Settings in the General Settings menu.

Parameters Description Value

Use SNTP client Activates the automatic synchronization of the system time over theInternet with SNTP (Simple Network Time Protocol)

–

UTC time zone offset Deviation in hours from UTC (Coordinated Universal Time)This parameter must be set according to the time zone applicable atthe installation site.

-12 to +14

Date Manual date input in yyyy-mm-dd format –

Time Manual time input in hh-mm-ss format –

6 Configuration SMA Solar Technology AG



Address of SNTPserver

Internet address of an SNTP server –

Time interval Time interval to which the system time is to be synchronized with theSNTP server

–

Start SNTP server Enables the use as an SNTP server for other devicesIf the SNTP server is activated, the SNTP server specifies the systemtime for other devices in the PV diesel hybrid system. In these devices,SNTP must be activated and the IP address of the Fuel Save Con-troller must be entered as an SNTP server.

–

Procedure:1. To do this you must be logged in as Installer: Select the menu Plant Overview via the page and menu selection.2. Choose Settings > General Settings via the page and menu selection.3. Set the parameter UTC time zone offset according to the local time zone (see Section 8.9.1, page 70).4. Carry out the following steps to arrange for the system time to be specified automatically:

• Activate the Use SNTP client checkbox.• Set the parameters Address of SNTP server and Time interval to the desired values.

5. Carry out the following steps in order to set the system time manually:• Deactivate the Use SNTP client checkbox.• Set the parameters Date and Time to the desired values.

6. In order to set use as an SNTP server for other devices, activate the Start SNTP server checkbox.7. Select the [Apply] button.

6.4 Setting Up Access via the InternetIn order to provide quick assistance in the event of a disturbance, the SMA Service requires access to the operatingdata of the PV diesel hybrid system. Access to the operating data enables a detailed analysis of the existing error andtherefore speeds up troubleshooting.The product is prepared to establish a secure VPN connection to Service. The VPN connection is based on the IPsecprotocol and is established by the FSC router (product-internal router). To allow smooth operation, access from thelocal network of the PV system operator to the product is only permitted for the following applications:

• FTP interface to the product via port 21 of the TCP protocol• Web browser for the user interface via port 80 of the TCP protocol• Interface of the product to the SCADA system via port 502 of the TCP protocol

The product-internal router enables these applications by means of port forwarding via the system router (router in thePV system operator's local network with access to the Internet).

Ensure data security in networksWhen accessing via the Internet, there is a risk that unauthorized users may access and manipulate the data ordevices in your system. Appropriate protective measures can include the following:

• Set up a firewall.• Close unnecessary network ports.• Only enable remote access via VPN tunnel.• Do not set up port forwarding at the communication port in use.

6 ConfigurationSMA Solar Technology AG


Requirement for VPN connection:☐ The system router must enable exclusive access for the product-internal router via ports 500 and 4500 of the UDP

protocol for IP address 194.176.121.155 of the SMA Solar Technology AG.

NOTICE

Destruction of gensets due to customer communication with the inverterThe network capacities within the system network are reserved for communication between the Fuel Save Controllerand the inverter. The system network can be overloaded due to unauthorized customer communication with theinverters. Control commands of the Fuel Save Controller cannot be sent to the inverter anymore when the systemnetwork is overloaded. This may lead to reverse currents and the destruction of gensets.

• Only operate the system network as documented in the acceptance test during commissioning.• The inverter data can only be requested via Fuel Save Controller.

Procedure:1. Configure the system router in such a way that the secure VPN connection is enabled for Service.2. Make sure that the product-internal router has established an Internet connection.3. Call Service (see Section 13, page 103).☑ Service will check whether the product-internal router has established a VPN connection.

7 System Monitoring SMA Solar Technology AG


7 System Monitoring7.1 Display Values of the Entire PV Diesel Hybrid SystemThe most important display values of the entire PV diesel hybrid system can be found on the Hybrid Plant Overviewpage.Path: Home > Stations > General Overview

AH

FB

C

D

G

E

Figure 8: Hybrid Plant Overview: Overview of the display values for the PV diesel hybrid system (example)

Position Display group Display value Description

A Load Active power Current active power of the loads

Reactive power Current reactive power of the loads

Total energy Energy consumed by the loads

7 System MonitoringSMA Solar Technology AG



B State of the dynamicgenset control (Dy-namic Genset Shut-down)

Current plant state State of the dynamic genset control (DynamicGenset Shutdown):

• Idle: PV diesel hybrid system is not in operation• Genset operation: Gensets are in operation.• Battery operation: Storage system is in

operation.

Current transition Transition of the dynamic genset control:• Idle: State of the dynamic genset control is

stable. There is currently no transition.• Genset unloading: Performance requirement

for the gensets is being reduced.• Genset shutdown: Gensets are disconnected

form the local utility grid and switched off.• Genset start preparation: Voltage and

frequency of the local utility grid aresynchronized with the gensets

• Genset start: Gensets are started.

Battery in process Operating hours of the storage system of the currentday

Genset in process Operating hours of the gensets of the current day

Mains op. process Duration of purchased electricity on the current day

C Distribution of electricalpower

Total active power Active power currently consumed by the loads

Genset power Share of genset active power currently consumed bythe loads

PV power Share of PV power plant active power currently con-sumed by the loads

Battery power Share of storage system active power currently con-sumed by the loads

Grid power Share of utility grid active power currently consumedby the loads

D Irradiation and temper-ature sensors

Ambient temp. Ambient temperature

Module temp. Temperature of the PV modules

Global irradiation PV irradiation

Power MPP Active power output at the maximum power point




E Utility grid MCB status Status of the connection to the utility grid:• OPEN: Connection is open• CLOSED: Connection is closed

Active power Current active power of the utility grid

Reactive power Current reactive power of the utility grid

Total energy Energy of the utility grid fed into the local utility grid

F Storage system Active Power Current active power of the storage system

Reactive power Current reactive power of the storage system

Total energy Energy of the storage system fed into the utility grid

Active Power setpoint Current setpoint for the active power of the storagesystem

Reactive power setpoint Current setpoint for the reactive power of the stor-age system

State of charge State of charge of the battery

G Gensets Active power Current active power of the gensets in kW

Reactive power Current reactive power of the gensets in kvar

Total energy Genset energy fed into the local utility grid in MWh

Reserve power setpoint Setpoint for the reserve power of the gensets

H PV power plant Active power Current active power of the PV power plant in kW

Reactive power Current reactive power of the PV power plant in kvar

Total energy PV power plant energy fed into the local utility gridin MWh

Active power setpoint Setpoint for the active power of the PV power plant

Reactive power setpoint Setpoint for the reactive power of the PV powerplant

7.2 Display Values of the GensetsThe Generator system overview page contains the display values for all of the gensets in the PV diesel hybridsystem. The genset names are assigned during commissioning.Path: Home > Stations > Genset System

Display value Description Value Explanation

Selected genset Currently displayed genset – –

Nominal power Nominal power of the selected genset – –

Active power Current active power of the selectedgenset

– –




Reactive power Current reactive power of the selectedgenset

– –

Apparent power Current apparent power of the selectedgenset

– –

Power factor Power factor: specifies the ratio of ac-tive power to apparent power.

– –

AC voltage Current AC voltage of the selectedgenset

– –

Operation time Operation time of the selected gensetsince first commissioning

– –

Energy fed in Grid feed-in: Energy fed into the localutility grid

– –

DevState Operating mode of the selected genset STOP Genset is out of service (e.g., formaintenance work)

IN OPERA-TION

Genset is in operation.

ERROR An error has occurred in thegenset.

WAIT Genset is in waiting mode.

WARNING A warning has occurred in thegenset.

COM ERROR Communication between gensetcontroller and Fuel Save Con-troller has failed.

Mode Operating mode of the selected genset STOP Genset is out of service (e.g., formaintenance work)

MANUAL Genset is in manual mode.

AUTO Genset is in automatic mode andcan be activated by means of theautostart signal.

LDSS The genset is activated and deac-tivated via the genset system’spower management function.

GCB status Current status of the circuit breakersthat connect the genset to the local util-ity grid.

CLOSED The genset is connected to the lo-cal utility grid.

OPEN The genset is not connected tothe local utility grid.



7.3 Display Values of the PV Power PlantThe most important display values of the entire PV diesel hybrid system can be found on the Photovoltaic systemoverview page.Path: Home > Stations > PV System


Selected inverter Currently displayed inverter – –

Nominal power Nominal power of the inverter – –

Active power Current active power of the in-verter

– –

Reactive power Current reactive power of the in-verter

– –

Active power setpoint Setpoint for the current activepower as a ratio of nominalpower, in %

– –

Reactive power set-point

Setpoint for the current reactivepower as a ratio of nominalpower, in %

– –

AC voltage AC output voltage of the inverter – –

DC voltage DC input voltage of the inverterin V

– –

Energy fed in Grid feed-in: Energy fed into thelocal utility grid in MWh

– –




Operational state Current operating mode of the in-verter

STOP The inverter is switched off.

WAIT FOR DC The inverter is waiting for DC in-put voltage.

WAIT FOR AC The inverter is waiting for anavailable local grid at the ACoutput.

COM ERROR Communication between inverterand Fuel Save Controller hasfailed.

WAIT FOR SET-POINT

The inverter is waiting for a set-point from the Fuel Save Con-troller.

IN OPERATION The inverter is feeding in.

WARNING A warning has occurred in the in-verter.

ERROR An error has occurred in the in-verter.

Q ON DEMAND The inverter is in the operatingstate "Q on Demand".

Device Error Error in the inverter – See inverter documentation

Serial number Inverter serial number – –

7.4 Storage System Display ValuesThe display values can only be retrieved on this page if a battery inverter has been installed.Path: Home > Stations > Battery


Selected inverter Currently displayed battery in-verter

– –

State of Charge(SOC)

State of charge of the battery – –

Active Power Current active power of the bat-tery inverter

– –

Reactive Power Current reactive power of thebattery inverter

– –

Active power setpoint Setpoint for the active power ofthe battery inverter

– –

Reactive power set-point

Setpoint for the reactive power ofthe battery inverter

– –




Maximum activepower charge

Maximum charge power of thebattery inverter

– –

Maximum activepower discharge

Maximum discharge power ofthe battery inverter

– –

AC frequency Frequency

BSC operation modestatus

Operating mode of the BatterySystem ControllerThe Battery System Controller isthe communication interface ofthe battery inverter to the BatteryManagement System and theFuel Save Controller.

STOP The storage system is switchedoff.

WAIT The storage system is verifying itsconnection conditions.

PQ The storage system is connectedand is processing the active andreactive power setpoints.

FAILURE An error has occurred in the stor-age system.

UNKNOWN The status of the storage systemcannot be read.

Device status Status of the battery inverter STOP The battery inverter is switchedoff.

IN OPERATION The battery inverter is feeding in.

ERROR An error has occurred in the bat-tery inverter.

WAIT The battery inverter is waiting forsetpoints.

WARNING A warning has occurred in thebattery inverter.

COM ERROR An error has occurred in the com-munication between the batteryinverter and the Fuel Save Con-troller.

Device error code Storage system error For information on potential causes or corrective mea-sures, see the documentation for the battery inverter

7.5 Display Values of the Measurement DevicesThe values obtained from the connected measurement systems are displayed on the Measurement systemoverview page.



Path: Home > Stations > Measurements


Selected measure-ment device

Currently displayed measurementsystem

Internal Measure-ment

Measurement devices connecteddirectly to the product.

DAQ Measurement devices connectedto the product via a Data Acquisi-tion Module.

Active power Calculated total active power – –

Active power L1/L2/L3

Calculated active power for L1/L2/L3

– –

Reactive power Calculated reactive power inkvar

– –

Cos phi L1/L2/L3 Calculated power factor for L1/L2/L3

– –

Frequency Measured frequency – –

Voltage Measured voltage – –

Energy consumed Energy consumption – –

Energy delivered Energy generation – –

Digital Input #1 sta-tus

Status of the digital input 1 on theData Acquisition Module

OPEN The digital input is switched off(contact is open).

CLOSED The digital input is switched on(contact is closed).

Digital Input #2 sta-tus

Status of the digital input 2 on theData Acquisition Module

OPEN The digital input is switched off(contact is open).

CLOSED The digital input is switched on(contact is closed).

List of measured de-vices

List containing all the devices inthe PV diesel hybrid system towhich the currently displayedmeasurement device is assigned.

– –

7.6 Performance Diagrams of the PV Diesel Hybrid SystemThe Historical Data page depicts a selection of power values over time. Different analysis periods can be selectedhere:

• the last minute (Show last minute)• the last 5 minutes (Show last 5 minutes)• the last hour (Show last hour)• the last 24 hours (Show last day)



Path: Home > Visualizations > Power Chart

Display value Description

Engaged nominal genset power Sum of nominal power of all active gensets

Mains active power Active power of utility grid

Load active power Active power consumed by the loads

Genset active power Active power supplied by the gensets

PV active power Active power of the PV power plant

Battery active power Active power supplied by the storage system



7.7 Display Values for Dynamic Genset ShutdownPath. Home > Visualizations > Dynamic Genset Shutdown

A

B

D

C

Figure 9: Page overview Dynamic Genset Shutdown



Position Category Display value / but-ton

Description

A Boundary Conditions Short-Circuit Current Short-Circuit CurrentTo trigger fuses and circuit breakers, a minimumshort-circuit current must always be available in thelocal utility grid. When the gensets are switched off,the inverters must be able to supply this short-circuitcurrent.

• Actual: actual short-circuit current• Optimal: optimal short-circuit current• Minimal: minimal short-circuit current

Battery Power Battery inverter powerThe battery inverters must be able to provide enoughactive and reactive power to enable stable opera-tion of the loads even in the event of fluctuations inPV generation.

Est. Time For BatteryIOF

Operating time only with invertersThe battery inverters must also be able to ensure thestable operation of the loads for a certain operatingtime.

• Estimated: estimated operating time (underfavorable conditions)

• Minimal: minimal operating time

State Of Charge State of chargeThe batteries of the individual battery inverters canhave different states of charge.

• Minimal: minimal state of charge of a battery• Maximal: maximal state of charge of a battery• Difference: difference between minimal and

maximal state of charge

B Idle Operation Battery IOP duration When the battery inverter is shown in green, onlythe battery inverters are in operation.

C Stable Operation Genset IOP duration When the genset is shown in green, only the gensetsare in operation.

D Manual Genset Control Stop Request Manual control of the gensets is being stopped.

Start Request Manual control of the gensets is being started.



7.8 Status of the Digital Switching Inputs and OutputsPath: Home > Visualizations > Digital IORange Digital Inputs:


Genset # Status(#1 to #6)

Current status of the circuitbreaker that connects the gensetor the utility grid to the local utilitygrid

CLOSED Circuit breaker is closed.

OPEN Circuit breaker is open.

Fast stop Status of digital switching inputDI7

CLOSED Section 8.8, page 69

OPEN

Grid status Current status of the circuitbreaker that connects the gensetor the utility grid to the local utilitygrid

CLOSED Circuit breaker is closed.

OPEN Circuit breaker is open.

Custom #1 Reserve (see product installation manual)

Custom #2 Reserve (see product installation manual)

Power good Status of the supply voltage CLOSED Supply voltage is on.

OPEN Supply voltage is not present.

Key switch status Status of key switch CLOSED The key switch is in the Start po-sition.

OPEN The key switch is in the Stop posi-tion.

Range Digital Outputs:


Operation LED Status of the Operation light re-peater

CLOSED The light repeater is lit up.

OPEN The light repeater is off.

Warning LED Status of the Warning light re-peater

CLOSED The light repeater is lit up.

OPEN The light repeater is off.

Inverter fast stop Status of the signal generator fordisconnecting the PV power plantfrom the local utility grid

CLOSED The values CLOSED and OPENare determined when connectingthe contactors to the switchingoutputs of the Fuel Save Con-troller (see the product installa-tion manual).

OPEN

Custom #1 Status of the signal generator forconnecting the PV power plantfrom the local utility grid

CLOSED

OPEN



7.9 Display Values for Communication with SCADA SystemOverview of the display valuesPath: Home> Visualizations > SCADA

Display value Description

Lifesign If the communication is intact, the SCADA system sends a signal with a continuously increas-ing numerical value to the Fuel Save Controller. If this signal is absent, the Fuel Save Con-troller switches to a safe state.

Ackn The SCADA system sends this signal to the Fuel Save Controller. This acknowledges warningsand errors.

CtrlModCmd Control mode command requirement from SCADA system

PwrAtSpnIn Setpoint for the delivery of active power by the PV diesel hybrid system specified by theSCADA system: If communication is intact, this value corresponds to the setting in the SCADAsystem.

PwrRtSpnIn Setpoint for the delivery of reactive power by the PV diesel hybrid system specified by theSCADA system: If communication is intact, this value corresponds to the setting in the SCADAsystem.

7.10 Device InformationPath: Home > Visualizations > Device Information

Name line Description

FSC serial number Indication of serial number

State of the applica-tion

Display of the state of application

MSys Version Indication of the installed version of the operating system

CPU temperature Display of the processor temperature in the product

7.11 Retrieving Display ValuesAlways retrieve display values, performance diagrams and other information according to this procedure.

Procedure:1. To do this you must be logged in as Installer: Select the menu Plant Overview via the page and menu selection.2. Choose the path, e.g. for the display values of the gensets Home > Stations > Genset System via the page and

menu selection.



7.12 Processing Event Messages

A

B

Figure 10: Event messages (A) and filter functions (B)

Event messages (A)

Name of the column Description

Timestamp Time at which the message was recorded:

Status Information

WarningIf a warning occurs, automatic operation of the PV diesel hybrid system is contin-ued.

ErrorIf an error occurs, automatic operation of the PV diesel hybrid system is discontin-ued.

Warning or error no longer exists.

Event, warning or error has occurred.

Code Four-digit number of the reported event, warning or error

Description Description of the reported event, warning or error



Filter functions (B)

Drop-down menus Description

Errors / Warnings / Info Status of event message

Battery events / System events / Genset events / PVevents / Meas events

Origin of the event message:• Storage system• PV diesel hybrid system• Genset system• Measurement devices

Using the scrollbarIf not all messages can be displayed on the user interface, a scrollbar appears on the Alarm list page. You canonly use this scrollbar by means of the arrow keys.

• To call up messages recorded at an earlier time, press the up row key.• To call up messages recorded at a later time, press the down arrow key.

Procedure:1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection.2. Choose Operations > Alarms via the page and menu selection.3. Set filter functions. To do this, activate the checkboxes and deactivate the checkboxes that are not required.4. Processing reported errors:

• Ascertain and remove the cause of the error.• Once the cause of the error has been eliminated, acknowledge the error message. To do so, select the

[Acknowledge] button.5. Ascertain the causes of reported warnings and take corrective action.6. To acknowledge reported warnings, select the [Acknowledge] button.



7.13 Operating Mode and Setpoints

7.13.1 Overview of Operating Modes and Setpoints

BA

C D

Figure 11: Overview of current operating state of the product (example)



Position Display group Parameters /Functions

Description

A Change controlmode

Current opera-tion

Shows the current operating mode:• Automatic mode (see Activate automatic mode)

The Fuel Save Controller normally operates in Automaticmode.The SMA Fuel Save Controller calculates the setpoints forthe PV power plant, the battery and the reserve power tobe retained by the gensets.

• Manual mode (see Activate manual mode)Manual mode is normally used only when the SMA FuelSave Controller is being commissioned. In Manual mode,the reserve power to be kept by the gensets is specifiedvia the user interface.If the Fuel Save Controller remains five minutes in theoperating mode Manual and no user is logged in, theFuel Save Controller switches automatically to theoperating state SLOW STOP and then to the Standbymode.

• SLOW STOP modeThe Fuel Save Controller stops the PV inverter (seeSection 11.1, page 99).

Activate auto-matic mode

Activate Automatic mode (see Section 7.13.3, page 46)

Activate man-ual mode

Activate Manual mode (see Section 7.13.3, page 46)

Enable SCADAto send set-points

Activate setpoint specification by a SCADA system (see Sec-tion 7.13.4, page 46)

Automatic stopin

Only in the operating mode Manual: Time until the automaticreturn to the operating mode Automatic

B System setpoints /system recommenda-tion

Genset reservepower

Current setpoint for the reserve power of the gensets in kW*

PV activepower

Current setpoint for the active power of the PV power plant inkW*

PV reactivepower

Current setpoint for the reactive power of the PV power plant inkvar*

Battery activepower

Current setpoint for the active power of the storage system inkW*

Battery reactivepower

Current setpoint for the reactive power of the storage system inkVAr*



Position Display group Parameters /Functions

Description

C Live values Calculated sys-tem load

Calculated active power requirement of the loads in kW

Running gensetcapacity

Sum of nominal power of all active gensets in kW

PV production Active power of the PV power plant in kW

Genset powerproduction

Active power of the gensets in kW

Available spin-ning reserve

Current reserve power of the gensets in kW

Battery activepower

Active power of the storage system in kW

D System warnings Genset Over-load

The genset system is overloaded.

Genset Min-Load

This minimum genset load has fallen below the threshold.

Genset CosPhi The power factor of the genset system is outside the parameter-ized limits.

Genset SpinnigReserve

The genset system does not provide the requested/required re-serve power.

* The Fuel Save Controller would currently send this setpoint if the Fuel Save Controller were in automatic mode.

7.13.2 Displaying Setpoints and Actual Values1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection.2. Choose Operations > Mode via the page and menu selection (see Section 7.13.1 "Overview of Operating

Modes and Setpoints", page 43).



7.13.3 Configuring the Operating Mode

NOTICE

Damage to the PV inverters, gensets, or loads caused by the input of incorrect setpointsIn Manual mode, the setpoints for the PV inverters and the reserve power to be kept by the gensets are specified viathe user interface. If the specifications are incorrect, the technical thresholds of the PV inverters, gensets, or loadscan be exceeded. An exceeding of technical thresholds can lead to damage of the PV power plant, gensets orloads.

• For continuous operation of the PV diesel hybrid system, always use the automatic operating mode.• Only activate the manual operating mode in temporary and exceptional situations (e.g., when carrying out

maintenance).• In the operating mode, verify that the technical thresholds for PV inverters, gensets, and loads are being

adhered to:– For the manual operating mode, at least 2 persons must be present at all times and must be trained in the

use of the manual operating mode.– Both persons must continuously monitor the adherence to technical thresholds during manual operating

mode via the user interface.

If the Fuel Save Controller remains five minutes in the operating mode Manual and no user is logged in, theFuel Save Controller switches automatically to the operating state Standby via the SLOW STOP mode.

Requirement:☐ You must be logged in as Installer.

Procedure:1. Choose the menu Plant Overview via the page and menu selection.2. Choose Operations > Mode via the page and menu selection (see Section 7.13.1 "Overview of Operating

Modes and Setpoints", page 43).3. Select the [Activate] button in the Activate automatic mode bar

to activate Automatic mode.4. To activate Manual mode, select the [Activate] button in the Activate manual mode bar.5. To deactivate Manual mode, activate Automatic mode or select the logout button in the header.

7.13.4 Specification of Setpoints for PV Power Plant by SCADA SystemWhen this function is active, a SCADA (Supervisory Control and Data Acquisition) system specifies the setpoints for thePV power plant and the reserve power to be retained by the gensets. The Fuel Save Controller checks these setpoints.Should the setpoints issued by the SCADA system jeopardize the stability of the PV diesel hybrid system, they will becorrected by the Fuel Save Controller. Finally the setpoints are forwarded to the PV power plant by theFuel Save Controller.For information on which Modbus registers are supported, see the technical information "SMA Modbus® Interface" atwww.SMA-Solar.com.For information on which of the supported SMA inverters support the Modbus interface of the Speedwire/Webconnectdata module, refer to the datasheet "FSC20_Modbus-DB-en-10.xlsx" at www.SMA-Solar.com.

Procedure:1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection.





2. Choose Operations > Mode via the page and menu selection (see Section 7.13.1 "Overview of OperatingModes and Setpoints", page 43).

3. In the Control Mode area activate the Enable SCADA to send setpoints checkbox.

8 System Settings SMA Solar Technology AG


8 System Settings8.1 Parameters for the Utility GridThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Grid General Configuration

Parameters Description Value Explanation Defaultvalue

Enable Determines whether theFuel Save Controller should takethe utility grid into account forcontrol of the PV diesel hybridsystem

Yes The Fuel Save Controllertakes the utility grid into ac-count.

No

No The Fuel Save Controllerdoes not take the utility gridinto account.

Nominal activepower

Nominal active power of utilitygrid

0 kW to 10000 kW – –

Short-circuit cur-rent capability

Short-circuit current capability ofthe utility grid

0 A to 10000 A – –

MCB feedbackvia

Defines the source of the feed-back signal from the MCB com-ponent in the control system

DI 8 Switching input DI 8 DI 8

COM External communicationnetwork

8.2 Adjustable parameters for gensets in the Fuel Save Controller

8.2.1 Parameters for Gensets with Genset Controller ComAp InteliGen NTC orComAp InteliSys NTC

Genset general configurationThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.


Remainingavailable de-vices

Remaining number of config-urable gensets

– – –

Number of de-vices

Number of installed gensets 0 to 8 – 0

Genset inter-face Type

Type of genset interface* ComAp IG-/IS-NTC Genset Controller ComApInteliGen NTC or ComApInteliSys NTC with Mod-bus/TCP communication(manufacturer: ComAp)

None

ComAp accesscode

Password for access to the gensetcontroller

0 to 65535 The maximum length of thepassword is 16 bits.

0

8 System SettingsSMA Solar Technology AG



ComAp adminpassword

Administrator password for writeaccess to parameters of thegenset controller

0 to 65535 The maximum length of thepassword is 16 bits.

0

Genset setpointmechanism

Activates the writing of reservepower setpoints to the gensetcontroller system (see Sec-tion 9.1.1, page 75).

Checkbox activated The specification of set-points for the reservepower is activated.

Deacti-vated

Checkbox deacti-vated

The specification of set-points for the reservepower is deactivated.

* The display of the following parameters changes according to the setting of the parameter Genset interface Type.

Generator configuration wizard: detailed configuration


Alias Genset / genset controller ID – – –

Enable this gen-erator

Determines whether theFuel Save Controller should takethe genset into account for con-trol of the PV diesel hybrid system

Yes The Fuel Save Controllertakes the genset into ac-count.

No

No The Fuel Save Controllerdoes not take the gensetinto account.

IP address IP address of the genset con-troller (not applicable with ahigher-level control system)

172.16.1.31 to172.16.1.38

Address range defined bythe Fuel Save Controller forgensets

172.16.1.31

Unit-ID (Mod-bus/TCP)

Genset controller ID for the Mod-bus/TCP protocol

1 to 254 – 0

Nominal activepower

Nominal power of the genset 0 kW to 10000 kW – 0 kW

Enable setpointmechanism

Activates the dynamic specifica-tion of a setpoint for the reservepower

Yes Dynamic specification ofsetpoints for the reservepower is activated.

No

No Dynamic specification ofsetpoints for the reservepower is deactivated.

Apply changesto all devices

Configures the gensets accordingto a uniform structure: the enterednominal power is adopted andthe IP address is incremented by1.



8.2.2 Parameters for Gensets with the Genset Controller AGCThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Genset general configuration




– – –

Number of de-vices


Generator In-terface Type

Type of genset interface* DEIF AGC Genset Controllers of theAGC series (manufacturer:DEIF)

None








No



172.16.1.31 to172.16.1.38


172.16.1.31



1 to 254 – 0

Nominal activepower



Activates transfer of the currentsettings for all gensets withGenset Controller DSE8610

Checkbox activated Transfer of current settingsfor all gensets is activated.

Deacti-vated


Transfer of current settingsfor all gensets is deacti-vated.

8.2.3 Parameters for Gensets with Genset Controller DSE8610The system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.







– – –

Number of de-vices


Generator In-terface Type

Type of genset interface* Deep Sea 8610 Genset Controllers of theDSE8610 series (Deep SeaElectronics)

None








No



172.16.1.31 to172.16.1.38


172.16.1.31



1 to 254 – 0

Nominal activepower



Activates transfer of the currentsettings for all gensets withGenset Controller DSE8610

Checkbox activated Transfer of current settingsfor all gensets is activated.

Deacti-vated


Transfer of current settingsfor all gensets is deacti-vated.

8.2.4 Parameters for gensets with genset controller easYgen-3000 via the CANnetwork

The system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.







– – –

Number of de-vices



Type of genset interface easYgen 3000 CAN Genset Controller easY-gen-3000 with CAN com-munication (manufacturer:Woodward)*

None

CAN#1 pass-word

Password for write access to thegenset controller

0 to 9999 For setting the password,refer to manufacturer docu-mentation

–


Activates the specification of set-points for the reserve power (seeSection 9.1.1, page 75)

Checkbox activated The specification of set-points for the reservepower is activated

Deacti-vated


The specification of set-points for the reservepower is deactivated

Write start re-quest command

Activates writing of the remotestart command to the gensets

Checkbox activated Function is activated.* Deacti-vated


Function is deactivated.

* For settings regarding the genset controller, see technical information "Gensets in PV Diesel Hybrid Systems withSMA Fuel Save Controller 2.0"



Label Genset / genset controller ID – – –




No


Nominal activepower





PDO-ID Proto-col 6000

Genset controller ID for the proto-col 6000 (load distribution mes-sage)

0 to 2047 For more information on thegenset controller, see themanufacturer documenta-tion

1280

PDO-ID Proto-col 5003

Genset controller ID for the dataprotocol 5003 (basic visualiza-tion)

0 to 2047 385

Service DataObject ID

Genset controller ID for communi-cating via Service Data Objects(SDO)

0 to 2047 1537

Timeout forPDO-ID Proto-col 6000

Timeout for transfer according toprotocol 6000

20 ms to 60000 ms The specification for thetimeout must be higher thanthe cycle time configured inthe genset controller (formore information on thegenset controller, see themanufacturer documenta-tion).

250 ms

Timeout forPDO-ID Proto-col 5003

Timeout for transfer according todata protocol 5003

20 ms to 60000 ms 250 ms

Timeout for Ser-vice Data Ob-ject ID

Timeout for communication viaService Data Objects

20 ms to 60000 ms 500 ms

CAN messagebuffer load

Display of the current capacityused in the CAN message store

0% to 100% The load in the CAN mes-sage store is only dis-played after restarting theFuel Save Controller (seeSection 11.3, page 100).

0 %

8.2.5 Parameters for Gensets with Genset Controller easYgen-3000 via theESENET Gateway





Remaining number of con-figurable gensets

– – –

Number of de-vices

Number of installedgensets

0 to 8 – 0


Type of genset interface easYgen 3000 ES-ENET-Gateway

Genset Controller easYgen-3000with Modbus/TCP communica-tion via Ethernet gateway ES-ENET (manufacturer: Wood-ward)*

None




CAN#1 pass-word

Password for write accessto the genset controller

0 to 9999 For setting the password, refer tomanufacturer documentation

0


Activates the writing of re-serve power setpoints tothe genset controller system(see Section 9.1.1,page 75).

Checkbox activated The specification of setpoints forthe reserve power is activated.

Deacti-vated


The specification of setpoints forthe reserve power is deactivated.

Parameter com-pare mecha-nism

Compares the nominalpower values of thegensets set in the Fuel SaveController with those of thegenset controllers

Checkbox activated Comparison of genset nominalpower is activated

Deacti-vated


Comparison of genset nominalpower is deactivated

* For settings regarding the genset controller, see technical information "Gensets in PV Diesel Hybrid Systems withSMA Fuel Save Controller 2.0"







No


Nominal activepower


ESENET-Gate-way IP Address

IP address of the genset con-troller (not applicable with ahigher-level control system)

172.16.1.31 to172.16.1.38


172.16.1.31

Unit ID (Mod-bus/TCP)


1 to 254 – –

8.2.6 Parameters for Gensets without the Genset ControllerThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.





– – –




Number of de-vices



Type of genset interface None The genset is monitored viathe current and voltagemeasurement of theFuel Save Controller. Agenset controller is notused.

None



Alias Genset ID – – –




No


Nominal activepower


8.3 Settings on the Genset ControllersThe following sections describe which settings you have to make on the genset controllers (for the implementation ofthese settings, see the genset controller documentarian).

8.3.1 Settings on ComAp InteliGen NTC or ComAp InteliSys NTC GensetControllers

You can use the following settings for the ComAp InteliMonitor configuration software.

Observe manufacturer documentationWhen using the SMA Fuel Save Controller with a genset controller of the ComAp InteliGen NTC or ComApInteliSys NTC series, the following settings must be made on the genset controller. At the same time, thespecifications stated in the manufacturer documentation must be observed at all times (see the genset controllerdocumentation of the ComAp InteliGen NTC or ComAp InteliSys NTC) series).

IP SettingsFor each genset controller of the ComAp InteliGen NTC or ComAp InteliSys NTC series, the following IP settings mustbe made on the genset controller.

IP setting Specified value

IP address 172.16.1.31 to 172.16.1.38*

Subnet mask 255.255.0.0




Standard gateway 172.16.1.11

* Only one IP address must be assigned to each genset controller.

Assignment of the Modbus RegisterThe Modbus registers from the tab Contr Modbus needed for the use with the SMA Fuel Save Controller must beassigned to the following Modbus registers from the tab User Modbus. The assignment of the Modbus registers mustbe set in the genset controller.In order to facilitate the assignment of the Modbus registers, the configuration software ComAp GenConfig can beused.

User Modbus tab Contr Modbus tab

Register number Register number Register name Explanation

42873 40003 BIN Binary inputs

42874 40264 Act power Active power

42875 40269 React power Reactive power

42876 40274 Appar power Apparent power

42877 40261 Pwr factor Power factor

42878 40256 Gen freq Generator frequency

42879 43587 Run hours (1/2) Operating hours

42880 43588 Run hours (2/2)

42881 43009 Nomin power Nominal power

42882 43595 kWhours (1/2) Meter reading in kWh

42883 43596 kWhours (2/2)

42884 40168 ControllerMode Operating mode

42885 40349 Engine Prio Priority of the gensets

42886 40132 LogBout 3 Logical binary outputs

42887 40133 LogBout 4

42888 40253 Gen V L1-L2 Generator voltage between L1 and L2



42891 40249 Gen V L1-N Generator voltage between L1 and N



42894 40258 Gen curr L1 Generator current L1



User Modbus tab Contr Modbus tab

Register number Register number Register name Explanation



Passwords

Password for access to the genset controller by the SMA Fuel Save ControllerThe SMA Fuel Save Controller and communication processor of the IB-COM of a genset controller of the ComApInteliGen NTC or ComAp InteliSys NTC series are communicating with each other via Modbus/TCP. For thiscommunication process, a shared password is necessary. The following requirements must be fulfilled when choosing ashared password:

• The password must not exceed a maximum length of 16 bit.• The password must be preset in the genset controller.• The password settings must be adopted for the parameter ComAp access code of the

SMA Fuel Save Controller.

Administrator password for write access to parameters of the genset controller by theSMA Fuel Save ControllerAn administrator password is necessary for write access to parameters of the genset controller by theSMA Fuel Save Controller. The following requirements must be fulfilled when choosing an administrator password:

• The administrator password must not exceed a maximum length of 16 bit.• The administrator password must be preset in the genset controller.• The administrator password settings must be adopted for the parameter ComAp admin password of the

SMA Fuel Save Controller.

Assignment of the Input Signal ExtValue1 to the Internal Signal DynSpinResReqGenset controller of the ComAp InteliGen NTC or ComAp InteliSys NTC series must be equipped with th ComAp IGS-NT-Hybrid firmware for the dynamic reserve power requirement of the PV power plant. Additionally, the input signalExtValue1 must be transferred to the internal signal DynSpinResReq. This signal transfer must be set in the gensetcontroller. Depending on assembly of the photovoltaic diesel hybrid system, the following variants must be selected:

• Signal transfer from SMA Fuel Save Controller to all genset controllersThe SMA Fuel Save Controller transfers the ExtValue1 signal to all genset controllers in the photovoltaic dieselhybrid system. This variant is recommended since, in the event of a genset controller failure, all other gensetcontrollers remain unaffected. The transmission of the ExtValue1 input signal to the internal DynSpinResReqsignal must be set on every genset controller.

• Signal transfer from SMA Fuel Save Controller to one genset controllerThe Fuel Save Controller transfers the ExtValue1 signal to one genset controller in the photovoltaic diesel hybridsystem. At this genset controller, the transmission of the ExtValue1 input signal to the internal DynSpinResReqsignal and the forwarding of the internal DynSpinResReq signal to all other genset controllers must be set.

Function "Password Break Protection"For write access to parameters of the genset controller by the SMA Fuel Save Controller, the "Password BreakProtection" function must be deactivated.



8.3.2 Settings on DSE8610 Genset Controllers or DSE8610 MKIIObserve manufacturer documentationWhen using the SMA Fuel Save Controller with a genset controller of the DSE8610 series or the DSE8610 MKIIseries, the following settings must be made on the genset controller. At the same time, the specifications stated inthe manufacturer documentation must be observed at all times (see the genset controller documentation).

In the user interface of the genset controller,the following register settings must be selected in the directory Advance >Configurable Gencomm Pages > Page 166.

Register Value

0-1 Generator Average Power Factor

2-3 Page = 3, Register = 4, Size = 16 bit

4-5 Generator Positive kWh

6-7 Generator Available

8-9 Generator Current L1



14-15 Engine Run Time


18-19 Generator Total VA

20-21 Generator Total Power

22-23 Generator Total VAr

24-25 Generator Volts (L1-L2)



30-31 Generator% Full Power (Load Sharing)

32-33 Generator Total Lead/Lag


8.3.3 Settings on Woodward easYgen 3000 Genset ControllersObserve manufacturer documentationWhen using the SMA Fuel Save Controller with a genset controller of the Woodward easYgen 3000 series, thefollowing settings must be made on the genset controller. At the same time, the specifications stated in themanufacturer documentation must be observed at all times (see the genset controller documentation of theWoodward easYgen 3000 series).



IP SettingsWhen using the Modbus/TCP communication interface with Ethernet gateway ESENET by proconX, the following IPsettings must be made for the Ethernet gateway ESENET.


IP address 172.16.1.31

Subnet mask 255.255.0.0

Standard gateway 172.16.1.11

ParametersThe following parameters must always be set when using genset controllers of the Woodward easYgen 3000 series.

ID Parameters Setting

1702 Device number This parameter assigns each genset controller with a unique address. Each genset con-troller requires a unique device number.

4071 Alarm class The alarm class of the multi-system parameter alignment may only be set to A or B. Thiswill ensure that the multi-system parameter alignment is not able to lead to the gensetsbeing stopped.

5747 Droop tracking Droop tracking must be set to active.

5748 Load sharing indroop mode

Load sharing in droop mode must be set to active.

5752 Start stop mode The function Start stop mode for load-dependent connection and disconnection mustbe set to the value Reserve power.

5761 IOP Hysteresis The parameter IOP Hysteresis specifies the disconnection hysteresis for absolutepower management and must be set to a value suitable for the PV diesel hybrid system:

• If the parameter IOP Hysteresis is set to too low a value, the gensets will have tostart and stop too frequently. Frequent starting and stopping of the gensets canlead to disturbances in the operating procedure.

• If the parameter IOP Hysteresis is set to too great a value, the gensets will haveto run without interruption for too long and will be subject to greater wear andtear. The PV power plant can not be used optimally.

8950 Node-ID CAN-Bus 1

The parameter Node-ID CAN-Bus 1 specifies the address with which the genset con-troller is identified at the CAN bus. This parameter must be set to the same value as theparameter Device number (ID: 1702).

8962 Selected DataProtocol

The Selected Data Protocol must be set to the value 5003.

9600 COB-ID The COB-ID is an identification number with which the genset controllers communicatevia the Selected Data Protocol (ID: 8962). Each genset controller requires a uniqueCOB-ID.

9923 Load share In-terface

The function Load share Interface must be set to the value CAN #1. This specifiesthe interface for communication between genset controller and SMA Fuel Save Con-troller.



ID Parameters Setting

12120 Start req. inAUTO

Only if the optional function of the Fuel Save Controller "Dynamic shutdown of thegensets" is used, the following setting must be made:The function Start. req. in AUTO and the input variable 04.13 Remote start must beactivated in the genset controller and connected via an AND operation.

12510 Operat. modeAUTO

The Operat. mode AUTO must be activated.

12930 Load dep. On/off

The function Load dep. on/off. for the load-dependent connection and disconnectionmust be activated.

33040 2. Node ID If a genset controller of the Woodward easYgen 3000 series is connected to theSMA Fuel Save Controller via a CAN communication interface, and the Ethernet gate-way ESENET is set in parallel, e.g. for an additional monitoring function, then so-calledService Data Objects (server SDOs) must be configured in the genset controller. Here,the identification numbers of the server SDOs 2. Node ID must be set to values from33 to 65.

8.4 Parameters for the PV Power PlantThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.The system settings for the inverters are located in the menus PV general configuration and PV systemconfiguration wizard.

PV general configuration - Buttons

Button Parameters

Add new item Add a device type for the PV inverter

Remove item Remove a device type for the PV inverter

PV general configuration - Parameters

Parameters Description Value Explanation

Remaining availabledevices

Remaining number of con-figurable inverters

– –

Type of inverter Inverter device type Sunny Tripower Type of an inverter of the Sunny Tripower se-ries: STP 20000TL-30 / STP 25000TL-30 /STP 15000TLEE-10 / STP 20000TLEE-10

Sunny TripowerTL-60

Type of an inverter of the Sunny Tripower se-ries: STP 60-10

Sunny CentralCP

Type of an inverter of the Sunny Cen-tral CP XT series

Sunny Central2200/2500

Type of a Sunny Central XXXX(-EV) inverter of

Number of inverters Number of installed invert-ers of the same device type

0 to 64 –



PV detailed configuration

Parameter/checkbox

Description Value Explanation Defaultvalue

Alias Type label for identifying the in-verter

– – –

Enable this in-verter

Determines whether theFuel Save Controller should takethe inverter into account in thecontrol of the PV diesel hybridsystem.

Yes The Fuel Save Controllertakes the inverter into ac-count.

No

No The Fuel Save Controllerdoes not take the inverterinto account.

IP address IP address of the inverter 172.16.200.1 to172.16.200.64

Address range defined bythe Fuel Save Controller forinverters

–

Protocol Communication protocol used bythe inverter

Defined by Type ofinverter

See inverter documentation Definedby Typeof in-verterDifferent communica-

tion protocol

Modbus UnitID

Inverter ID for the Modbus/TCPprotocol

126 to 167 See inverter documentation –

EnableQ on demand

The Fuel Save Controller uses theinverter's "Q on Demand" func-tion.

Yes "Q on Demand" is beingused.

No

No "Q on Demand" is not be-ing used.

Nominal DCPower

Nominal DC input power of theinverterEach PV inverter may be con-nected to as many PV modules asthe maximum DC power and themaximum input voltage of the PVinverter allow. If less modules areconnected, the correspondingDC input power must be storedvia this parameter.

0 kW to 10000 kW – 0 kW


The inverter's capability to outputshort-circuit current

0 A to 10000 A – –


Selection of the configurationscheme

Activated Configures all inverters ac-cording to the samescheme*

–

Deactivated Only configures the se-lected inverter

* The entered nominal power is adopted and the IP address is incremented by 1.



8.5 Parameters for the Storage SystemThe parameters can only be set on this page if a battery inverter has been installed.The system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.Battery general configuration: Storage system general settings


Remaining available de-vices

Remaining number of configurable battery inverters –

Quantity of battery con-trollers

Number of installed battery inverters of the same device type 0 to 16

Battery controller configuration: Battery inverter settings


Enable fre-quency droops

Activates the frequency-depen-dent active power control in thebattery inverter (see battery in-verter documentation).

Yes The Fuel Save Controlleractivates the frequency-de-pendent active power limi-tation.

No

No The Fuel Save Controllerdeactivates the frequency-dependent active powerlimitation.

Nominal droopfrequency

Power alteration proportionate tothe nominal power of the batteryinverter in the event of deviationfrom the mains nominal fre-quency

0% to 200% – 100 %

Battery detailed configuration

Parameter/checkbox


Alias Type label for identifying the in-verter

– – –

Enable this in-verter

Determines whether theFuel Save Controller should takethe inverter into account in thecontrol of the PV diesel hybridsystem.

Yes The Fuel Save Controllertakes the inverter into ac-count.

No

No The Fuel Save Controllerdoes not take the inverterinto account.

IP address IP address of the inverter 172.16.200.1 to172.16.200.64

Address range defined bythe Fuel Save Controller forinverters

–



Parameter/checkbox


Protocol Communication protocol used bythe inverter

Defined by Type ofinverter

See inverter documentation Definedby Typeof in-verterDifferent communica-

tion protocol


The inverter's capability to outputshort-circuit current

0 A to 10000 A – –

Rated activepower

Nominal active power of the in-verter

0 kW to 5000 kW – 2000 kW

Upper SOC op-erating limit

Upper SOC operating limit 0% to 100% – 100 %

Lower SOC op-erating limit

Lower SOC operating limit 0% to 100% – 0 %


Selection of the configurationscheme

Activated Configures all inverters ac-cording to the samescheme*

–

Deactivated Only configures the se-lected inverter

* The entered nominal power is adopted and the IP address is incremented by 1.

8.6 Settings on the Measurement Devices

8.6.1 General Settings on Measurement DevicesThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Measurement devices general configuration

Display group Parameters Description Value Explanation Default value

Internal measure-ment devices


Remaining number ofconfigurable mea-surement devices

– – –

Number of devices Number of measure-ment devices installed

0 to 6 – 0

Frequency Nominal frequency 50 Hz – 50 Hz

60 Hz –

Reset energy coun-ters

Reset the energy meters of all internal measurement modules. It is advis-able to only use the Reset energy counters function during commission-ing.



Display group Parameters Description Value Explanation Default value

External measure-ment devices


Remaining number ofconfigurable mea-surement devices

0 to 32 – –

Type of Measure-ment device

Measurement devicetype

DAQ-11 FSC-11-DAQ DAQ-11

Number of devices Number of measure-ment devices installed

0 to 32 – 0

8.6.2 Detailed Settings on Measurement Devices for Internal MeasurementModules of the Fuel Save Controller


Measurement devices detailed configuration

Parameters Description Value Explanation Default value

Alias Name for identification ofmeasurement devices

– – –

Enable this device Determines whether theFuel Save Controller shouldtake the measurement de-vice into account in the con-trol of the PV diesel hybridsystem

Yes The Fuel Save Controllertakes the measurement de-vice into account.

No

No The Fuel Save Controllerdoes not take the measure-ment device into account.




Data source priority Use of the measured valuesfrom the Fuel Save Con-troller in the event of a com-munication connection fail-ure

Single source Connection to the devicecarrying out the measure-ments is disabled. Only themeasured values from theFuel Save Controller areused.

–

Second source Connection to the devicecarrying out the measure-ments is enabled. The val-ues communicated by thedevice have priority. If com-munication fails, the mea-sured values from theFuel Save Controller areused.

Measurementpriority

Connection to the devicecarrying out the measure-ments is enabled. The val-ues measured by theFuel Save Controller havepriority. In case of measure-ment failure, the valuescommunicated by the de-vice are used.

Device type Type of measurement mod-ule

GM260 – –

GMP232x –

Grid type Type of grid used for cur-rent and voltage measure-ment

3PH-3L Three-conductor utility gridwith three line conductors

–

3PH-4L Four-conductor utility gridwith three line conductorsand one neutral conductor

Ratio of potentialtransducer

Transformation ratio forvoltage measurement

The requirements of the measurement inputs must be compliedwith (see installation manual of the product).

Ratio of current trans-ducer

Transformation ratio for cur-rent measurement

The requirements of the measurement inputs must be compliedwith (see installation manual of the product).

Assign measurementpoints

Overview of the activateddevices, e.g. PV inverters

Devices can be activated or deactivated for the selected mea-surement device via the [Show devices] button (see Sec-tion 8.9.6, page 73).

Feeder number Current measurement num-ber (see product installa-tion manual)

1 to 6 – –



8.6.3 Detailed Settings on Measurement Devices for Data Acquisition ModulesThe parameters can only be set on this page if a Data Acquisition Module has been installed.The system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Measurement devices detailed configuration


Alias Name for identification ofmeasurement devices

– – –

Enable this device Determines whether theFuel Save Controller shouldtake the measurement de-vice into account in the con-trol of the PV diesel hybridsystem

Yes The Fuel Save Controllertakes the measurement de-vice into account.

No

No The Fuel Save Controllerdoes not take the measure-ment device into account.

IP address IP address of the Data Ac-quisition Module

172.16.0.0 to172.17.255.255

The IP address of theData Acquisition Module isdefined during commission-ing.

–




Data source priority Use of the measured valuesfrom the Fuel Save Con-troller in the event of a com-munication connection fail-ure

Single source Connection to the devicecarrying out the measure-ments is disabled. Only themeasured values from theFuel Save Controller areused.

–

Second source Connection to the devicecarrying out the measure-ments is enabled. The val-ues communicated by thedevice have priority. If com-munication fails, the mea-sured values from theFuel Save Controller areused.

Measurementpriority

Connection to the devicecarrying out the measure-ments is enabled. The val-ues measured by theFuel Save Controller havepriority. In case of measure-ment failure, the valuescommunicated by the de-vice are used.

Assign measurementpoints

Overview of the activateddevices, e.g. PV inverters

Via the button [Show devices], a menu is called up in whichdevices can be activated or deactivated for the selected mea-surement device. Furthermore, the devices that are connectedto the digital inputs of the Data Acquisition Module are config-ured via this menu (see following example).



Example: Setting of the devices on the digital inputs of the Data Acquisition Module

If the genset 1 is connected to digital input DI 1 on the Data Acquisition Module and the utility grid is connected todigital input DI 2, then the settings on the SMA Fuel Save Controller are correct in this example.If the utility grid is connected to digital input DI 1 on the Data Acquisition Module and the genset 1 is connected todigital input DI 2, then the settings on the SMA Fuel Save Controller are incorrect in this example. Incorrectlyconfigured devices must be deactivated and reactivated with the correct settings.

8.7 Settings on the Temperature and Irradiation SensorsThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Meteorologic general configuration



Remaining number of config-urable temperature and irradia-tion sensors

– – –

Number of devices Number of temperature and irra-diation sensors installed

0 to 6 – 0

Device type Type of temperature and irradia-tion sensors

SMA Me-teo Sta-tion

Interface to the SMA Cluster Con-troller or SMA Inverter Manager

SMA Me-teo Sta-tion

SunspecMini MetModel

Communication interface speci-fied according to SunSpec Mod-bus



8.8 Stop of the Fuel Save Controller via Switch Input DI 7The system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Digital Input/Output Configuration


Use digital in-put 7 to stopthe FSC system

Stop of Fuel SaveController via switchinput DI 7*

Activated Switch input DI 7 is used to stop theFuel Save Controller.When this function is activated, the pa-rameters Signal mode and Stopmode appear.

Activated

Deactivated Switch input DI 7 is not used to stop theFuel Save Controller. The parametersSignal mode and Stop mode disap-pear.

Signal mode Tripping signal orswitching procedure

Normally open Tripping signal is activation of the con-nected signal generator.

Normallyclosed

Normally closed Tripping signal is deactivation of theconnected signal generator.

Stop mode Stop mode Fast stop Fast stop: PV power plant is discon-nected from the grid immediately.

Fast stop

Slow Stop Slow stop: the output power of the PVpower plant is reduced gradually andthen the PV power plant is discon-nected from the grid.

* To enable use of this function, switch input DI 7 must be connected (see product installation manual).

Custom Inputs

Parameters Description

Custom Input DI9 Freely configurable digital input to which special functions can be assigned:• No function• Feedback from the generator switch of genset 7

Custom Input DI10 Freely configurable digital input to which special functions can be assigned:• No function• Feedback from the generator switch of genset 8



8.9 Handling System Settings

8.9.1 Adjusting the System SettingsAlways adjust the system settings according to the following procedure.

NOTICE

Risk of damage to devices by entry of incorrect parametersIncorrect parameters may damage devices and result in system malfunctions in the PV diesel hybrid system. Alladjustable parameters are protected by the password of the user group Installer.

• Only a qualified person is permitted to set and adjust parameters.• Only give the password for the user group Installer to qualified persons.• Change the default passwords as soon as possible.• Read the description of the parameters carefully and follow all instructions relating to the settings options of the

parameters.

NOTICE

Destruction of gensets due to insufficient reserve powerOnce the SMA Fuel Save Controller and PV power plant have stopped, the PV power plant is no longer availableas energy supplier. Now only the gensets supply the loads. If the current reserve power of the gensets is insufficientfor supplying the power required by the loads, the gensets become overloaded Sustained overload of the gensetscan result in failure of the power supply and destruction of the gensets.

• Prior to stopping the Fuel Save Controller, always check whether the current reserve power of the gensets issufficient to cover the requirement of the loads.

– If the current reserve power of the gensets is insufficient, switch off the loads or connect additional gensets.This increases the reserve power of the gensets.

• If the power management and the communication interface of the genset are not compatible with theFuel Save Controller, power management must be deactivated on the Fuel Save Controller. In this case, thegensets must be monitored to ensure that sufficient reserve power is retained.

• Make sure that the setpoints for power management on the Fuel Save Controller and the gensets are set to thesame value.

Procedure:1. Log in as Installer.2. Select the configuration wizard via the page and menu selection.3. In the bar with the desired sub-system, select the [Adjust] button.4. Select the desired parameter in the content area:

• To change parameters with an entry field, enter new values and press Enter after each entry.By pressing Enter, the entered value is adopted in the user interface.

• To change parameters with a checkbox, activate the required checkbox.• To change parameters with a drop-down list, select the desired value in the appropriate drop-down list.

5. If the border of the input field flashes red, check the input and set the parameter to a valid value. To do this,repeat the previous step.

6. To discard current parameter settings, select the [Discard] button.7. To adopt current parameter settings in the control, select the [Apply] button.



8. If the selected page has a [Continue wizard] button, select this button. This opens another page with detailedsettings.

9. Select the [Done] button.10. If a storage system is installed, activate monitoring for the state of charge limits Upper SOC operating limit and

Lower SOC operating limit (see Section 9.3.1, page 81).11. End the system settings (see Section 8.9.2, page 71).

8.9.2 Ending System SettingsThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.

Requirements:☐ You must be logged in as Installer.☐ All the required settings regarding the parameters of the Fuel Save Controller must be finished and confirmed with

the [Done] button.

Procedure:1. Save the current settings in a parameter file (see Section 8.9.3, page 71).2. Restart the Fuel Save Controller with the saved parameter file (see Section 11.3, page 100). This accepts the

current settings for ongoing operation. The restart process for the Fuel Save Controller takes approx. 1 minute.

8.9.3 Saving System Settings

Figure 12: Saving system settings

The system settings of the Fuel Save Controller are saved in parameter files. You can overwrite the current parameterfile or create a new parameter file.The system settings of the Fuel Save Controller can only be saved, loaded or deleted when the Fuel Save Controller isin STANDBY or ERROR mode.


Maximum number of parameter filesIt is possible to save up to ten different system settings in parameter files.

• Once this number has been reached, delete parameter files you no longer need (see Section 8.9.5,page 73).

Procedure:1. Choose the menu Parameter Files via the page and menu selection.2. To overwrite the current parameter file, select the [Overwrite] button in the Current file bar.3. To create a new parameter file, perform the following steps:

• Enter the desired file name in the New file bar and press Enter.By pressing Enter, the entered value is adopted in the user interface of the Fuel Save Controller.



• Select the [Save] button.

8.9.4 Loading System Settings

Figure 13: Loading or deleting system settings

The system settings of the Fuel Save Controller can only be saved, loaded or deleted when the Fuel Save Controller isin STANDBY or ERROR mode.After a software update, the Fuel Save Controller restores automatically the system settings from the file that has beensaved last. Due to the newly added parameters in the new software version, the Fuel Save Controller remains in theoperating state ERROR and signals the error 2069 until the system settings are saved again and the system has beenrestarted.The new parameters, which have been added through an update, can be found in the respective release notes that areincluded in the software update package.

Requirements:☐ You must be logged into the user interface as Installer.☐ The Fuel Save Controller and PV power plant must have been stopped (see Section 11.1, page 99).

NOTICE

Power supply failure when the SMA Fuel Save Controller is restartedBefore restarting the SMA Fuel Save Controller, the SMA Fuel Save Controller and PV power plant must bestopped. It can take a few minutes for the SMA Fuel Save Controller and PV power plant to stop because the PVinverters have to reduce their output power slowly. If the PV inverters are still feeding energy to the grid when theSMA Fuel Save Controller is restarted, this may cause failure of the power supply.

• Once the SMA Fuel Save Controller has stopped, wait until the PV inverters have reduced their output power tozero. This can take several minutes.

Procedure:1. Choose the menu Parameter Files via the page and menu selection.2. Only if no parameter file is selected, the Fuel Save Controller can be restarted with a parameter file:

• Select a parameter file in the drop-down list File database.• In the Reboot with a selected file bar, select the [Reboot] button.

3. To overwrite the current parameter file, select the [Overwrite] button in the Current file bar.4. Choose the parameter file with the required system settings via the dropdown list File database.5. In the Reboot with a selected file bar, select the [Reboot] button.



8.9.5 Deleting System Settings

Figure 14: Loading or deleting system settings

The system settings of the Fuel Save Controller can only be saved, loaded or deleted when the Fuel Save Controller isin STANDBY or ERROR mode.

Requirement:☐ You must be logged into the user interface as Installer.

Procedure:1. Choose the menu Parameter Files via the page and menu selection.2. Choose the parameter file with the required system settings via the dropdown list File database.3. In the bar Delete selected file, press [Delete].

8.9.6 Activating/Deactivating DevicesThe system settings can only be changed in the STANDBY or ERROR operating state. The operating state STANDBYcan be reached by stopping the product.


Procedure:1. Select the menu Configuration Wizard via the page and menu selection.2. In the Measurement System bar, click on the button [Adjust].3. In the menu Measurement devices general configuration, first click on the button [Apply] and then on the

button [Continue wizard]. This opens the menu Measurement devices detailed configuration.4. In the Assign measurement points bar, click on the button [Show devices].5. To add a device, perform the following steps:

• Select the appropriate subsystem via Select a subsystem.• In the area Select a measurement point select either one available device or all available devices:

– To select one available device, activate the checkbox for this device.– To select all available devices, activate the checkbox Select all.

• Click on the button [Add >>].• Click on the button [Apply and close].

6. To remove a device, perform the following steps:• In the area Select a measurement point select either one active device or all active devices:

– To select one active device, activate the checkbox for this device.– To select all active devices, activate the checkbox Select all.



• Click on the button [<< Remove].• Click on the button [Apply and close].

9 System ControlSMA Solar Technology AG


9 System Control9.1 Genset control

9.1.1 Parameters for the Minimum Genset LoadPath: Home > Control Functions > Genset > Minimum genset load


DbTolPc Deadband for error output re-lated to the minimum genset load-ing threshold in %.

-100% to 100% – 10 %

DbTolTm Deadband timer for error outputin seconds

0.1 s to 3600 s – 60 s

GenPwrAtMinPc Minimum genset loading of thegenset system in % of the nominalgenset active power

0% to 100% – 30 %

RampTmGenPwrAt-Nom

Ramp time of the change in thenominal genset active power inseconds

1 s to 60 s – 10 s

SpntOfsPc Setpoint offset related to the mini-mum genset loading threshold in%

-100% to 100% – 0 %

9.1.2 Parameters for Reverse Power Protection of the GensetsPath: Home > Control Functions > Genset > Reverse power management


Enable Activate the Reverse PowerProtection function.

Yes Activates the function No

No Deactivates the func-tion

ErrTolDevMinPc Tolerance for error detectionupon device reverse power in %of the nominal active gensetpower in kW

-100% to +100 – -10 %

ErrTolDevMinTm Timer for error output upon de-vice reverse power in seconds.

0.1 s to 60 s – 1 s

WarTolDevMinPc Tolerance for warning detectionupon device reverse power in %of the nominal active gensetpower in kW

-100% to +100 – -5 %

WarTolDevMinTm Timer for warning output upondevice reverse power in seconds

0.1 s to 60 s – 2 s

9 System Control SMA Solar Technology AG



ErrTolTotPc Tolerance for error detectionupon total reverse power in % ofthe nominal active genset powerin kW

-100% to +100 – -10 %

ErrTolTotTm Timer for error output upon totalreverse power in seconds

0.1 s to 60 s – 1 s

WarTolTotPc Tolerance for warning detectionupon total reverse power in % ofthe nominal active genset powerin kW

-100% to +100 – -5 %

WarTolTotTm Timer for warning output upon to-tal reverse power in seconds

0.1 s to 60 s – 2 s

9.1.3 Parameters for the Supply of Sufficient Reserve Power via GensetsPath: Home > Control Functions > Genset > Genset power management


Enable Activates the Genset PowerManagement function.

Yes Activates the function Yes

No Deactivates the function

PwrMngmtMode Select the mode for powermanagement (for informationon power management, seetechnical information"Gensets in PV Diesel HybridSystems withSMA Fuel Save Controller2.0")

Off OffIf the function Genset setpointmechanism is activated, thisvalue is recommended (see Sec-tion 8.2, page 48).

Off

Relative to theremaininggensets

Relative power management ofgensets as a percentage of theactive genset load: In the case ofswitch-off, the remaining nominalpower of the gensets remainingafter switch-off is taken into ac-count.

Relative to theavailablegensets

Relative power management ofgensets as a percentage of theactive genset load: In the case ofswitch-off, the nominal power ofthe currently active gensets istaken into account.

Absolute PowerManagement

Absolute power management ofgensets to comply with a speci-fied absolute reserve power ofthe total system in kW.




GenTrshldTopPc Switch-on threshold for rela-tive genset power manage-ment in % of the /n activegenset nominal power.

10% to 110% – 90 %

GenTrshldTopAbs Switch-on threshold for abso-lute genset power manage-ment in kW

0 kW to100000 kW

– 10 kW

GenTrshldBotPc Switch-off threshold for rela-tive genset power manage-ment in relation to the activegenset nominal power in %

0% to 90% – 35 %

GenTrshldBotAbs Switch-off threshold for abso-lute genset power manage-ment in kW

0 kW to100000 kW

– 20 kW

SysTmResHigh System timer for detection ofexcessive reserve power pro-vided by the gensets

0 s to 900 s – 300 s

SysDbResHigh System deadband for exces-sive reserve power detectionin % of genset active nominalpower (positive values allevi-ate detection)

-100% to+100%

– 10 %

SysTmResLow System timer for detection ofinsufficient reserve power pro-vided by the gensets

0 s to 900 s – 90 s

SysDbResLow System deadband for insuffi-cient reserve power detectionin % of genset active nominalpower (positive values allevi-ate detection)

-100% to+100%

– 10 %

LoadPwrAtResReq Load required spinning re-serve request

0 kW to100000 kW

– 10 kW

SimultaneousPc Simultaneous factor for Gen-PwrAtResSpnt while PV is re-questing more ResPwr in % ofLoadPwrAtResThe value 0% means that theevents do not occur at thesame time. If the events donot occur at the same time,the Fuel Save Controller doesnot have to provide as muchreserve power.

0% to 100% – 50 %




BatPwrAtRes-MaxPc

Percentage of the availablereserve power from batterysystem which shall be consid-ered for reserve power man-agement

0% to 120% – 70 %

GenResPwrThrsld Threshold for preventing over-loading of the gensetsIf this threshold is exceeded,the storage systems feeds inelectrical power. This is toprevent overloading of thegensets.

50% to 120% 90 %

PvPwrAt-SafeModeMin

Minimum injected active PVpower, if system is in safemode.

0 kW to100000 kW

– 0 kW

9.2 Controlling the PV power plant

9.2.1 Parameters for Power Factor Control for the Gensets Using the ReactivePower Release of the PV Inverters

Path: Home > Control Functions > PV > Reactive Power Control


Enable Enables this function. Yes Activates the function* Yes


Point of interest Power factor setpoint for eitherthe genset system or the grid

Genset Control at connectionpoint of the genset sys-tem

Genset

Grid Control at the grid-con-nection point

CosPhiSpnt Power factor setpoint for eitherthe genset system or the grid

0.1 to 1 – 0.9

PropGain Proportional gain for the PI con-troller, a tuning parameter

0 to 10 – 0.1

IntGain Integral gain for the PI controller,a tuning parameter

0 to 10 – 0.1

TrackGain An anti windup parameter.Keep it around 50% of integralgain

0 to 10 – 0.05




BackcalcGain An anti windup parameter.Keep it around 50% of integralgain

0 to 10 – 0.05

EnableFeedForward Enables the feed forward algo-rithm

Yes Activates the feed for-ward

Yes

No Deactivates the feed for-ward

FeedForwardOffset Offset that is added to the reac-tive power release of the PVpower plant and storage system.This is to compensate for the ex-pected changes in the reactivepower output

-100000 kVAr to+100000 kVAr

– 0 kVAr

FeedForwardGain A tuning parameter for the feedforward algorithm

0 to 10 – 1

SpntSplitPc To split the reactive power set-point between the PV and batterysystem. (90% => PV = 90%, Bat-tery = 10%)Example:SpntSplitPc = 100%: 100% al-lotted to the PV power plant and0% to the storage system.SpntSplitPc = 0%: 0% allottedto the PV power plant and 100%to the storage system.

0% to 100% – 80 %

PvPwrRtFilterTime First order filter time constant forthe reactive power of the PV sys-tem

0 s to 3600 s – 1 s

BatPwrRtFilterTime First order filter time constant forthe reactive power of the batterysystem

0 s to 3600 s – 1 s

* When the function Reactive Power Control is activated, the function Reactive Power Management must be deactivated (seeSection 9.2.2, page 79).

9.2.2 Control of the PV Power Plant Reactive Power According to ElectricalConsumption

Path: Home > Control Functions > PV > Reactive Power Management


Enable Enables this function Yes Activates the function* Yes





RpmIslandMode Selects the mode of this functionin case of island operation

Off Reactive power manage-ment for island operationis deactivated.

Off

Fixed CosPhi Reactive power manage-ment for island operationwith set power factor

Load CosPhi Reactive power manage-ment for island operationwith load-dependentpower factor

FixedCosPhiIsland Fixed cosPhi in island operation(only active if selected in RpmIs-landMode)This parameter is only valid if theparameter RpmIslandMode isset to Fixed CosPhi.

-1 to +1 – 0.900

RpmGridMode Selects the mode of this functionin case of grid operation

Off Reactive power manage-ment for operation in theutility grid is deactivated.

FixedCosPhi

Fixed CosPhi Reactive power manage-ment for operation in theutility grid with set powerfactor

Load CosPhi Reactive power manage-ment for operation in theutility grid with load-de-pendent power factor

FixedCosPhiGrid Fixed cosPhi in grid operation(only active if selected in Rpm-GridMode)This parameter is only valid if theparameter RpmGridMode is setto Fixed CosPhi.

-1 to +1 – +0.900

PvCosPhiMinOx Minimum overexcited power fac-tor which the PV inverters canprovide

0 to +1 – 0.8

PvCosPhiMinUx Minimum underexcited powerfactor which the PV inverters canprovide.

0 to +1 – 0.8

GenCosPhiWarnOx Warning threshold of cosPhi foroverexcited operation of gensets

0 to +1 – 0.800




GenCosPhiWarnTm Warning timer for cosPhi opera-tion of Gensets

0 s to 86400 s – 10.0 s

GenCosPhiWarnUx Warning threshold of cosPhi forunderexcited operation ofgensets

-1 to 0 – -0.800

GridCosPhiWarnOx Warning threshold of cosPhi foroverexcited operation of grid

0 to +1 – 0.700

GridCosPhiWarnUx Warning threshold of cosPhi forunderexcited operation of grid

-1 to 0 – -0.700

GridCosPhiWarnTm Warning timer for cosPhi opera-tion of grid

0 s to 86400 s – 10.0 s

FixedCosPhiBat Fixed cosPhi in grid operation(only active if selected in Rpm-GridMode)

0 to 1 – 0.900

* When the function Reactive Power Management is activated, the function Reactive Power Control must be deactivated (seeSection 9.2.1, page 78).

9.3 Controlling the Battery Inverter

9.3.1 State-Of-Charge Control of the BatteryThe parameters of the function State of charge can only be set if a battery inverter has been installed.Path: Home > Control Functions > Battery > State of charge


Enable Enables this function Yes Activates the function Yes


UsePvPwr Enables function BatChrCtrl. De-fault ONIt is advisable to always chargethe battery with excess PV en-ergy.

Yes The battery is ideallycharged with PV en-ergy.

Yes

No The battery is ideallycharged from gensetsor the utility grid

CtrlGain Control function gain 0.1 to 100000 – 10




HysPc Hysteresis of SOC range:• If the battery state of charge

falls below the value of theparameter SocLimLoPc, theFuel Save Controller beginsto charge the battery.

• If the battery state of chargeexceeds the sum of theparameters SocLimLoPcand HysPc, the Fuel SaveController stops charging thebattery.

0% to 100% – 5 %

SocLimHiPc Upper limit of SOC range 0% to 100% – 80 %

SocLimLoPc Lower limit of SOC range 0% to 100% – 60 %

ToRdyTm Time until module starts workingafter battery power is not used:

• If the battery state of chargeupper limit is exceeded andthe delay time has elapsed,the Fuel Save Controllerrequests that the battery bedischarged.

• If the battery state of chargefalls below the lower limitand the delay time haselapsed, the Fuel SaveController requests that thebattery be charged.

0 s to 36000 s – 180 s

PwrAtChrMaxPc Maximum setpoint of theFuel Save Controller to chargethe battery based on the avail-able electric power of all batteryinverters

0% to 100% – 10 %

PwrAtDisMaxPc Maximum setpoint of theFuel Save Controller to dischargethe battery based on the avail-able electric power of all batteryinverters

0% to 100% – 10 %



9.3.2 Setpoints for the Storage System According to the Rise and Drop of PVPower

The parameters of the function Ramp rate control can only be set if a battery inverter has been installed.

When using a storage system in PV diesel hybrid systems: Measurement of PV power via themeasurement inputs of the Fuel Save ControllerIf a storage system is implemented in the PV diesel hybrid system, the Fuel Save Controller has to calculate thesetpoints of the storage system for the charging and discharging of the battery depending on the PV power. Tocorrectly calculate the setpoints, the Fuel Save Controller requires the data of the PV power in a very hightemporal resolution.For this, a current measurement input and a voltage measurement input of the Fuel Save Controller or of theoptional Data Acquisition Module must be used for capturing the PV power. The data transmitted via the internalcommunication network of the PV diesel hybrid system do not have the required resolution.

Path: Home: Control Functions > Battery > Ramp Rate Control


Enable Enable this function Yes Activates the function Yes


FallRateMax Maximum permitted rate for PVdrop.If there is a greater drop in PVpower, electrical power must besupplied by the battery.

0 kW/s to100000 kW/s

– 100 kW/s

RiseRateMax Maximum permitted rate for PVrise.If there is a greater rise in PVpower, electrical power must bestored in the battery.

0 kW/s to100000 kW/s

– 100 kW/s

StrThrsld Function output offset in case ofmismatch.

0 kW to100000 kW

– 1 kW

9.3.3 Enables function BatChrCtrl. Default ONThe parameters on the page Energy Shifting can only be set if a battery inverter has been installed.Path: Home > Control Functions > Battery > Energy Shifting


Enable Enables this function Yes Activates the function Yes





ChrFromPvSpntLimPc Charging the battery from PV islimited by this value based on themaximum charge power of thebattery systemThe battery is charged whenthere is surplus PV energy. Thecharging setpoint of the storagesystem is limited to this value.

0% to 100% – 50 %

DisBatSpntLimPc Amount of power provided bythe battery based on the maxi-mum discharge power of the bat-tery systemThe buffered energy is releasedby the storage system if too littlePV power is available. The set-point for discharging the batteryis limited to this value.

0% to 100% – 10 %

MinDisTm Minimum time for the battery toprovide powerThe energy required must bestored in the battery.

60 s to 200000 s – 1800 s

TolerancePc Tolerance for reducing the MPPpowerWhen determining the maximumcharging power, theFuel Save Controller takes the re-duced MPP power into account.

0% to 100% – 5 %

Ramp rate Rate of change of the setpoint forthe intermediate storage

1%/s to 100%/s – 2%/s

9.4 Processing of the received measured values and parameters

9.4.1 MPP Estimate for PV Power PlantThe accuracy of the MPP estimate is evaluated by the Fuel Save Controller during the run time. The evaluation resultsare written to the error and event file and shown on the user interface in the error dialog at the end of the day.One of the three messages are generated once a day:

• #2122 - MPP accuracy: no evaluation due to small PV operation timeToday's operating time of the PV system was too short to carry out a proper evaluation.

• #2123 - MPP accuracy: negative/positive mismatch by xy/xy kWhA negative or positive deviation has occurred during the calculation of the MPP power. The deviation is shown inkWh by xy/xy. A negative deviation means that the MPP calculation is too low. A positive deviation means thatthe MPP calculation is too high.

• #2124 - MPP accuracy: achieved the expected accuracy of 10%The accuracy of the determined MPP lies within the required scope of 10%.



With this information, an adjustment of the parameters of the calculation is possible to increase accuracy.Path: Home > Control Functions > Aggregate > MPP Estimation

Parameters Description Value Default value

MppCalcGain In case of an inaccurate calculation of themaximum power point, it can be improved byadjusting this factor.

-1000 to +1000 1

MppCalcOffset In case of an inaccurate calculation of themaximum power point, it can be improved byadjusting this offset.

-100000 to+100000

0

MppNormOpCell-Temp*

Normal operating cell temperature of the PVmodules. Use the PV module datasheet as areference.

-100°C to +100°C 25°C

MppPwrTempCoeff* Power temperature coefficient of the PV mod-ules. Use the PV module datasheet as a refer-ence.

-10%/°C to +10%/°C

0.1% /°C

CalcPvPwrAtMpp** MPP power of the PV power plant measuredby the Fuel Save ControllerWhen the PV power plant is not controlled,the Fuel Save Controller can measure the PVpower plant's MPP power.

– –

CalcPvP-wrAtMppEst**

Current MPP power of the PV power plant es-timated by the Fuel Save ControllerThe Fuel Save Controller estimates the PVpower plant's MPP power by means of themeasured PV irradiation.

– –

* Setting the parameters MppNormOpCellTemp and MppPwrTempCoeff in accordance with the technical data of the PV modulesenables a reliable estimation of the PV power.

** Display value (not adjustable)

9.4.2 Selecting a Measuring Point for ControlThe measuring point, where voltage, frequency and power of the PV diesel hybrid system are recorded, can beselected via the POI Configuration page.Path: Home > Control Functions > Aggregate > POI Configuration


FrqPoiMeasDevIdx Selection of measuring point forfrequency measurement

1st measuring point – –

2nd measuring point –

VtgPoiCalcMode Mode for voltage measurement Between L1 and L2 Measurement be-tween L1 and L2

BetweenL1 andL2

Average of all 3PH Average of all mea-sured voltages (L1-L2,L1-L3 and L2-L3)




VtgPoiMeasDevIdx Selection of measuring point forfrequency measurement



PwrAtPoiCalcMode Mode for capturing the activepower

Selected device Active power of a de-vice

Sum ofselecteddevices

Sum of selected de-vices

Sum of active powerof all selected de-vices

Average of selecteddevices

Average activepower of all selecteddevices

PwrAtPoiMeasDevIdx Selection of measuring point forthe active power measurement



PwrRtPoiCalcMode Mode for capturing the reactivepower

Selected device Reactive power of adevice

Sum ofselecteddevices

Sum of selected de-vices

Sum of reactivepower of all selecteddevices

Average of selecteddevices

Average reactivepower of all selecteddevices

PwrRtPoiMeasDevIdx Selection of measuring point forthe reactive power measurement



9.4.3 Other Parameters for Processing the Received Measured Values andParameters

Path: Home > Control Functions > Aggregate > Miscellaneous


SocAvgCalcMode Selects the mode for calculatingthe state of charge of all batteries

SOC State of charge of thebattery based on thenominal battery ca-pacity

Energy

Energy State of charge of thebattery as availableelectrical power

SafePctPv Share of the current MPP powerof the PV plant which will still beavailable in case of PV drops

0% to 100% – 20 %



9.5 Calculation of the parameters to be output

9.5.1 Setpoint Change Rate for PV Inverters and GensetsPath: Home > Control Functions > Dispatch > Ramps


GenPwrMngmtTran-sRamp

Maximum rate of active power setpoint forPV system in case of too low reserve power.

0%/s to 100%/s 5%/s

PvPwrAtFallRateMax Maximum negative rate of the active powersetpoint for PV inverters in percent per sec-ond (%/s) of related nominal inverter power

0%/s to 1000%/s 20%/s

PvPwrAtRiseRateMax Maximum positive rate of the active powersetpoint for PV inverters in percent per sec-ond (%/s) of related nominal inverter power

0%/s to 1000%/s 5%/s

PvPwrRtFallRateMax Maximum negative rate of the active powersetpoint for PV inverters in percent per sec-ond (%/s) of related nominal inverter power

0%/s to 1000%/s 20%/s

PvPwrRtRiseRateMax Maximum positive rate of the reactive powersetpoint for PV inverters in percent per sec-ond (%/s) of related nominal inverter power.

0%/s to 1000%/s 20%/s

BatPwrAtFall-RateMax

Maximum negative rate of active power set-point for battery system related to the actualpower.

0%/s to 1000%/s 20%/s

BatPwrAtRiseR-ateMax

Maximum positive rate of active power set-point for battery system related to the actualpower

0%/s to 1000%/s 20%/s

BatPwrRtFallRateMax Maximum negative rate of reactive powersetpoint for battery system related to the ac-tual power

0%/s to 1000%/s 20%/s

BatPwrRtRiseR-ateMax

Maximum positive rate of reactive power set-point for battery system related to the actualpower

0%/s to 1000%/s 20%/s

SlowStopRamp Rate with which the complete system set-points will be ramped down in case of astop.

0 s to 3600 s 20 s

9.5.2 Options for Specifying the Reserve Power Setpoint of the GensetsPath: Home > Control Functions > Dispatch > Genset setpoints


GenSpntTrigPctNeg The reserve power setpoint will be transmit-ted immediately to the genset system if a neg-ative change of the setpoint is greater thanthis percentage of the connected nominalGenset power.

0% to 10000% 20 %




GenSpntTrigPctPos The reserve power setpoint will be transmit-ted immediately to the genset system if a pos-itive change of the setpoint is greater thanthis percentage of the connected nominalGenset power.

0% to 10000% 20 %

GenSpntTrigTm The reserve power setpoint for the Gensetsystem will be transmitted /n cyclical afterthis time in seconds.

0.1 s to 3600 s 120 s

9.5.3 Conditions for the Connection and Disconnection of the PV InvertersPath: Home > Control Functions > Dispatch > Dynamic Inverter management




GenPwrAtNomIn-vProp

Proportion of allowed nominalpower of the PV inverters in rela-tion to the total nominal power ofall connected Gensets

0% to 500% – 200 %

GridPwrAtNomIn-vProp

Proportion of allowed nominalpower of the PV inverters in rela-tion to the nominal connectionpower of the connected utilitygrid

0% to 1000% – 200 %

BatPwrAtNomInvProp Proportion of allowed nominalpower of the PV inverters in rela-tion to the nominal connectionpower of all connected battery in-verters

0% to 1000% – 200 %

PwrAtNomAllowed-FallRate

Maximum negative rate of the al-lowed nominal power of the PVinverters

0.1 kW/s to10000 kW/s

– 100 kW/s

PwrAtNomAl-lowedRisRate

Maximum negative rate of the al-lowed nominal power of the PVinverters

0.1 kW/s to10000 kW/s

– 100 kW/s



9.5.4 Procedure for Connecting and Disconnecting the PV InvertersPath: Home > Control Functions > Dispatch > PV


PvConTmOutTm The FSC waits for this time in sec-onds for the PV inverters to con-nect. Otherwise it will throw atimeout.

10 s to 86400 s – 600 s

PvIdleTm After the FSC has started up orshut down inverters, furtherswitching actions are not per-formed for this time in seconds.

0 s to 86400 s – 60 s

PvOpTmSortTm The FSC will sort the PV invertersbased on their operating hoursafter the given number of sec-onds.

at least 3600 s – 604800s

PvRampTm Setpoints for the PV inverters willbe ramped for this time in case ofswitching action.

1 s to 300 s – 60 s

PvSpntTrigTm The active and reactive powersetpoints for the PV inverters willbe transmitted cyclical after thistime in seconds.

0.1 s to 3600 s – 0.2 s

PvTransTm Setpoints for the PV inverters willbe ramped for this time in case ofswitching action.

1 s to 604800 s – 600 s

FallbackPc In case of communication issuesto the inverters, they will feed inthis percentage of nominalpower.

1% to 100% – 10 %



9.5.5 Switching the Battery Inverters On and OffPath: Home > Control Functions > Dispatch > Battery


DispatchMode Determines the mode based onwhich the setpoint for the activepower is distributed to the batteryinverters in the PV diesel hybridsystem.

Power Distribution of the set-point according tothe charging and dis-charging activepower of each bat-tery inverter

Energy

Energy Distribution of the set-point based on thecharging and dis-charging energy ofeach battery inverter

C rate* Distribution of the set-points for the ramprates according tothe C rate of eachbattery inverterBut: Distribution ofthe setpoints for en-ergy still according tothe charging and dis-charging energy ofeach battery inverter

PwrRtDistribution-Mode

Determines the mode based onwhich the setpoint for the reactivepower is distributed to the batteryinverters.

Same CosPhi Assignment of an uni-form setpoint for thecos φ to all battery in-verters.

SameCosPhi

Same PowerRt Distribution of the set-point according tothe charging and dis-charging reactivepower of each bat-tery inverter

EnaSocEqual Activates the automatic compen-sation of the states of charge.**

No Automatic compensa-tion of the states ofcharge is deacti-vated.

No

Yes Automatic compensa-tion of the states ofcharge is activated.




SocRampTm The battery inverter regularly re-ports the current state of chargeto the Fuel Save Controller.Transmitted values are filteredwithin the period SocRampTmto allow a slow adaptation of thecontrol process in theFuel Save Controller.

1 s to 60 s – 5 s

SpntDistFilterTm Filter time constant to supplementthe parameter SocRampTm,which causes an additional limita-tion of the ramp rate.

1 s to 600 s – 12 s

SpntRedistMaxPc Percentage of the inverter nomi-nal power that can be used forautomatic compensation of thestates of charge.

0% to 10% – 1 %

SocDevMaxAllowed Maximum permissible deviationbetween the state of charge of abattery inverter and the averagestate of charge of all battery in-verters. If this value is exceeded,the setpoint for automaticallycompensating the state of chargebecomes effective.

1% to 10% – 2 %

* The C rate is the relation of the values Power and Energy to each other.** Only when the parameter DispatchMode is set to Power or C-Rate, can the automatic compensation of the states of charge be

activated.

9.6 Control of the Grid Feed-InPath: Home > Control Functions > Mains > Feed in protection




GridReleaseAllPv Inject all PV in case of connectedgrid

Off Deactivates the func-tion

Off

On Activates the function




FipMode Ensure a minimum active powerto be obtained from the grid

Feed in The Fuel Save Con-troller feeds into theutility grid up to thevalue of PwrAtFeed-InMax.

GridMin-Load

GridMinLoad The Fuel Save Con-troller obtains powerfrom the utility grid upthe value of PwrAt-GridMinLoad.

PwrAtFeedInMax Maximum feed-in value for activepower in case of active grid con-nection

0 kW to100000 kW

– 0 kW

PwrAtGridMinLoad Minimum load value for activepower in case of active grid con-nection

0 kW to100000 kW

– 0 kW

SpntOfsAbs Function output offset in case ofmismatch

0 kW to100000 kW

– 0 kW

WarTrshldAbs Warning threshold of grid's ac-tive power

0 kW to100000 kW

– 0 kW

ErrTrshldAbs Error threshold of grid's activepower

0 kW to100000 kW

– -10 kW

WarTrshldTm Warning timer of grid's activepowerError timer of grid's active power

0.1 s to 86400 s – 10.0 s

ErrTrshldTm Error timer of grid's active power 0.1 s to 86400 s – 5.0 s

9.7 Dynamic Genset Shutdown

9.7.1 General Settings of the Dynamic Genset ShutdownPath: Home > Control Functions > Dynamic Genset Shutdown > Dynamic Genset Shutdown


AutoModeDom Activates the Dynamic GensetShutdown function.






GenPwrAtUnload-Spnt

Setpoint for the total activepower of the gensetsBefore the dynamic shutdown ofthe gensets, the Fuel Save Con-troller transmits this setpoint to thegenset controllers.

0 kW to100000 kW

– 10 kW

MinTransTmDom Minimum transmission time fromthe "Diesel Off" operating modeto the "Diesel On" operatingmode

300 s to 36000 s – 900 s

ShrtCirCurCapTotMin Minimum of the continuous short-circuit capacity of the entire PVdiesel hybrid system

0 A to 1000000 A – 1000 A

ShrtCirCurCapTotOpt Optimum of the continuous short-circuit capacity of the entire PVdiesel hybrid system

0 A to 1000000 A – 1500 A

SocConBatGfDiff-Max

Maximum permissible deviationbetween the states of charge ofall battery invertersIf this threshold is exceeded, theFuel Save Controller cannot acti-vate the dynamic shutdown.

1% to 99% – 10 %

9.7.2 Parameters for PV Yield ForecastPath: Home > Control Functions > Dynamic Genset Shutdown > Energy Management


Enable Activates the Energy Manage-ment function.



GeoCoordLat Latitude at which the PV diesel hy-brid system is installed

-90° to +90° – 51.31 °*

GeoCoordLong Longitude at which the PV dieselhybrid system is installed

-180° to +180° – 9.48 °*

PvModB Orientation of the PV moduleswith regard to the north direction(azimuth)

0° to 180° 0°: Orientation to thenorth180°: Orientation tothe south

180 °*

PvModH Orientation of the PV moduleswith regard to the horizon

0° to 90° – 5 °




MinDomTm Minimum time for the operatingmode "Diesel Off" which is neces-sary for an automatic transmis-sion

300 s to 36000 s – 1800 s

AvgLoad Average electrical consumptionfor forecasting the time that thePV diesel hybrid system can re-main in the "Diesel Off" operatingmode to estimate the projectedcharging energy

1 kW to 10000 kW – 500 kW

* Example for Kassel

9.7.3 Parameters for Frequency ControlPath: Home > Control Functions > Dynamic Genset Shutdown > Frequency Control


Enable Activates the Frequency Con-trol function.



FrqFilterTm Filter time constant for measuringthe current frequency

0.1 s to 30.0 s – 3.0 s

FrqMaxWar Warning threshold for overfre-quency

40 Hz to 70 Hz – 52 Hz

FrqMinWar Warning threshold for underfre-quency

40 Hz to 70 Hz – 48 Hz

FrqNom Nominal frequency of the PVdiesel hybrid system

40 Hz to 70 Hz – 50 Hz

FrqOfsGenSync Frequency offset for synchroniz-ing the gensets to the local utilitygrid

-10 Hz to +10 Hz – 00.05 Hz

FrqSpnt Frequency setpoint in the "DieselOff" operating mode

40 Hz to 70 Hz – 50 Hz

IntGain Integral gain for the control share 0 to 100 – 1




IntLimAwu Threshold for the integral share offrequency control, e.g.:

• IntLimAwu=1: The batteryinverter's entire active powermay be used for thefrequency control.

• IntLimAwu=0.2: 20% ofthe battery inverter's activepower may be used for thefrequency control.

0 to 2 – 0.2

PropGain Proportional gain for the controlshare

0 to 100 – 1

9.7.4 Parameters for Voltage ControlPath: Home > Control Functions > Dynamic Genset Shutdown > Voltage Control


Enable Activates the Voltage Controlfunction.



IntGain Integral gain for the control share 0 to 100 – 1

IntLimAwu Threshold for the integral share ofvoltage control

0 to 2 – 0.5

PropGain Proportional gain for the controlshare

0 to 100 – 1

VtgFilter Tm Filter time constant for measuringthe current voltage

0.1 s to 30.0 s – 3.0 s

VtgMaxWar Warning threshold for overvolt-age

1 V to 100000 V – 450 V

VtgMinWar Warning threshold for undervolt-age

1 V to 100000 V – 330 V

VtgNom Nominal voltage of the PV dieselhybrid system

1 V to 220000 V – 400 V

VtgOfsGenSync Voltage offset for synchronizingthe gensets to the local utility grid

-1000 V to 1000 V – -2.0 V

VtgSpnt Voltage setpoint in the "DieselOff' operating mode

1 V to 100000 V – 400 V



9.8 Setting Parameters for System ControlAlways set the parameters for system control according to the following procedure.

NOTICE

Power supply failure caused by unexpected stop of a genset due to reverse power protectionTo ensure that a genset is protected from backfeed damage, reverse power protection must be enabled andconfigured in the Fuel Save Controller and the genset. The parameters on the Fuel Save Controller and the gensetmust be configured so that the reverse power protection is always triggered at the Fuel Save Controller first. If thereverse power protection first triggers in the genset, this results in an unexpected stop of the genset which cannot beforeseen by the Fuel Save Controller. The unexpected stop of a genset may result in a power failure in the entire PVdiesel hybrid system.

• Only use gensets with reverse power protection which fulfill the reverse power limits of the Fuel Save Controller(see installation manual of the product).

• Ensure that the reverse power protection of the gensets is always active during operation.• Adjust the reverse power protection parameters to ensure that reverse power protection always triggers first at

the Fuel Save Controller and only then at the genset.

NOTICE






NOTICE

Power outage due to sudden power fluctuations in the PV power plantIf the communication between the Fuel Save Controller and the inverters is interrupted, the inverters will operateaccording to their fallback settings. When communication is restored, power fluctuations may occur if the fallbacksettings of the inverters deviate from the fallback settings of the Fuel Save Controller. These power fluctuations canresult in failure of the power supply in the PV diesel hybrid system.

• Ensure that the fallback settings of the inverters match the fallback settings of the Fuel Save Controller.

1. Log in as Installer.2. Select the path via the page and menu selection, e.g. for controlling the grid feed-in Home > Control Functions

> Mains > Feed in protection3. Select the desired parameter in the content area:



• To change parameters with an entry field, enter new values and press Enter after each entry.By pressing Enter, the entered value is adopted in the user interface of the Fuel Save Controller.

• To change parameters with a checkbox, activate the required checkbox.• To change parameters with a drop-down list, select the desired value in the appropriate drop-down list.

4. If the border of the input field flashes red, check the input and set the parameter to a valid value. To do this,repeat the previous step.

5. To discard current parameter settings, select the [Discard] button.6. To adopt current parameter settings in the control, select the [Apply] button.7. Only applies to settings for the MPP estimate for the PV power plant: Make sure that the parameters

MppNormOpCellTemp and MppPwrTempCoeff are set in accordance with the technical data of the PVmodule (see Section 9.4.1, page 84).

10 System History SMA Solar Technology AG


10 System History10.1 Overview of the Data StructureThe product records the system history and saves three files with different data each day:

• One file with data for fast acquisition of measured values• One file with data for slow acquisition of measured values• One file with event and error messages

Once the product has recorded the system history for 100 days in a ring buffer, it starts to overwrite the files.The files are saved in CSV format and recorded according to the following pattern:

File content Name structure Saveinterval

Path for open access Read access foruser group

Data for fast acquisi-tion of measured val-ues

LogDataFast_JJJJ-MM-TT.csv

10 s /cfs0/fsc/log/DataFast/ … User and Installer

Data for slow acquisi-tion of measured val-ues

LogDataSlow_JJJJ-MM-TT.csv

300 s /cfs0/fsc/log/DataSlow/ … User and Installer

Event and error mes-sages

ErrEvtLog_JJJJ-MM-TT.csv – /cfs0/fsc/log/ErrEvt/ … only Installer

System settings – – /cfs0/fsc/param/ … only Installer

10.2 Viewing System History DataRequirements:☐ To access the files, a file management program (e.g., Windows Explorer) or web browser (e.g., Google Chrome)

must be installed.☐ The file management program or web browser must have an FTP function.☐ To open the files, a spreadsheet program or text editor must be installed.

Procedure:1. Enter the IP address of the SMA Fuel Save Controller ftp://172.16.1.21 in the address bar of the file

management program or web browser.2. Enter password(see Section 5 "Logging In and Out of the User Interface", page 23).3. Enter the desired path (see Section 10.1 "Overview of the Data Structure", page 98).4. Open the required file.

11 Starting and Stopping the SystemSMA Solar Technology AG


11 Starting and Stopping the System11.1 Stopping the SMA Fuel Save Controller and PV Power PlantThe SMA Fuel Save Controller and PV power plant can be stopped in two ways:

• Stopping the SMA Fuel Save Controller and PV power plant using the switch cabinet key• Stopping the SMA Fuel Save Controller and PV power plant via the user interface

NOTICE






Stopping the SMA Fuel Save Controller and PV power plant using the switch cabinet key1. Turn the SMA Fuel Save Controller key switch to Stop.2. Wait until the SMA Fuel Save Controller has stopped the inverters. This can take several minutes.3. To disconnect the inverters from the AC grid, disconnect the inverters from voltage sources (see inverter

documentation).

Stopping the SMA Fuel Save Controller and PV power plant via the user interface

Requirement:☐ You must be logged into the user interface as Installer.

Procedure:1. Log into the user interface as Installer.2. Choose Settings > General Settings via the page and menu selection.3. In the Start/Stop FSC system bar, select the [Stop FSC] button.4. Wait until the SMA Fuel Save Controller has stopped the inverters. This can take several minutes.

☑ The Fuel Save Controller is off message is displayed.5. To disconnect the inverters from the AC grid, disconnect the inverters on the DC main distributor from voltage

sources (see inverter documentation).

11.2 Starting the PV Power Plant and SMA Fuel Save Controller1. Start the gensets (see system documentation).2. On the Fuel Save Controller, connect the supply voltage (see the installation manual of the product).3. Connect the current and voltage measurement inputs (see the installation manual of the product).

11 Starting and Stopping the System SMA Solar Technology AG


4. To start the PV power plant and SMA Fuel Save Controller using the switch cabinet key, turn the SMA Fuel SaveController key switch to Start.

5. To start the PV power plant and SMA Fuel Save Controller via the user interface, carry out the following steps:• Log into the user interface as Installer.• Choose Settings > General Settings via the page and menu selection.• In the Start/Stop FSC system bar, select the [Start FSC] button.☑ The Fuel Save Controller is on message is displayed.

6. Connect the PV inverters on the DC main distributor to the AC grid (see inverter documentation).☑ The PV power plant synchronizes to the available AC grid. How long synchronization takes depends on the

current solar irradiation on the PV modules and on the current power required by the loads.☑ The Fuel Save Controller reports the event 2097: Valid product licence found: The Fuel Save Controller is fully

functional.✖ The Fuel Save Controller generates a warning: 2098: No product licence found, 2099: Product licence is

not valid, or 2100: Product licence is empty. This prevents access to the optional functions of theFuel Save Controller.The software license installed may be invalid.

• Install a valid software license (see Section 11.4, page 101).

11.3 Restarting the SMA Fuel Save Controller and PV Power PlantRequirement:☐ You must be logged into the user interface as Installer.☐ The Fuel Save Controller and PV power plant must have been stopped (see Section 11.1, page 99).

NOTICE

Power supply failure when the SMA Fuel Save Controller is restartedBefore restarting the SMA Fuel Save Controller, the SMA Fuel Save Controller and PV power plant must bestopped. It can take a few minutes for the SMA Fuel Save Controller and PV power plant to stop because the PVinverters have to reduce their output power slowly. If the PV inverters are still feeding energy to the grid when theSMA Fuel Save Controller is restarted, this may cause failure of the power supply.

• Once the SMA Fuel Save Controller has stopped, wait until the PV inverters have reduced their output power tozero. This can take several minutes.

Procedure:1. Choose the menu Plant Overview via the page and menu selection.2. Choose Settings > General Settings via the page and menu selection.3. In the Reboot FSC system bar, select the [Reboot] button.☑ The PV power plant synchronizes to the available AC grid. How long synchronization takes depends on the

current solar irradiation on the PV modules and on the current power required by the loads.☑ The Fuel Save Controller reports the event 2097: Valid product licence found: The Fuel Save Controller is fully

functional.✖ The Fuel Save Controller generates a warning: 2098: No product licence found, 2099: Product licence is

not valid, or 2100: Product licence is empty. This prevents access to the optional functions of theFuel Save Controller.The software license installed may be invalid.

• Install a valid software license (see Section 11.4, page 101).

11 Starting and Stopping the SystemSMA Solar Technology AG


11.4 Installing a Valid Software LicenseUnder adverse circumstances, the Fuel Save Controller generates a warning: 2098: No product licence found,2099: Product licence is not valid, or 2100: Product licence is empty when starting or restarting.

Cause:The software license installed on the Fuel Save Controller may be damaged or invalid for some other reason.

Corrective measures:1. Request a valid software license from Service (see Section 13, page 103).

☑ You will receive an e-mail with the valid software license with the file fsc.lic.2. Open an FTP client on the computer to display the user interface.3. Connect with the Fuel Save Controller via FTP (e.g., via ftp://172.16.1.21).4. Open the folder cfc0/fsc/newfiles/.5. Copy the file fsc.lic into the folder cfc0/fsc/newfiles/.6. Restart the Fuel Save Controller (see Section 11.3, page 100).

12 Cleaning SMA Solar Technology AG


12 CleaningAdditionally required maintenance material (not included in the scope of delivery):☐ Use touch-up sticks, paint brushes, spray paint or 2K-PUR acrylic paint to repair minor surface damage.☐ Use touch-up paint or 2K-PUR acrylic paint to repair extensive surface damage.

DANGER

Danger to life from electric shock due to live voltageDanger of electric shock if work is executed incorrectly or under fault conditions. An electric shock can lead todeath or serious injury.

• Externally disconnect the supply voltage and the measuring cables for the current- and voltage measurementbefore performing any work on the Fuel Save Controller.

• Observe the five safety rules when disconnecting the supply voltage:– Disconnect from voltage sources.– Ensure that the device cannot be reconnected.– Ensure that no voltage is present.– Ground and short-circuit the device.– Cover and isolate any adjacent live components.

NOTICE

Damage due to cleaning agentsThe use of cleaning agents may cause damage to the product and its components.

• Clean the product and all its components only with a cloth moistened with clear water.

Procedure:1. Check whether the products shows any externally visible damage.

If the product enclosure shows any externally visible damage, perform the following measures:• Decommission the product (see product installation manual).• Contact the SMA Service Line (see Section 13, page 103).

2. Remove coarse dirt contamination from the outside of the enclosure with a soft brush or similar tool.3. Remove dust from the outside of the enclosure using a moist cloth.4. Check the enclosure for corrosion and eliminate if necessary:

• Use touch-up sticks, paint brushes, spray paint or, alternatively, 2K-PUR acrylic paint to repair minor surfacedamage. When doing so, adhere to the relevant instructions of the paint manufacturer.

• Use touch-up paint or 2K-PUR acrylic paint to repair extensive surface damage. When doing so, adhere tothe relevant instructions of the paint manufacturer.

13 ContactSMA Solar Technology AG


13 ContactIf you have technical problems with our products, please contact the SMA Service Line. The following data is requiredin order to provide you with the necessary assistance:

• Device type• Serial number• Event message• Type of genset control unit used

DeutschlandÖsterreichSchweiz

SMA Solar Technology AGNiestetalSunny Boy, Sunny Mini Central,Sunny Tripower: +49 561 9522‑1499Monitoring Systems(Kommunikationsprodukte):+49 561 9522‑2499Fuel Save Controller(PV-Diesel-Hybridsysteme):+49 561 9522-3199Sunny Island, Sunny Boy Storage,Sunny Backup:+49 561 9522-399Sunny Central, Sunny Central Storage: +49 561 9522-299SMA Online Service Center:www.SMA-Service.com

BelgienBelgiqueBelgiëLuxemburgLuxembourgNederland

SMA Benelux BVBA/SPRLMechelen+32 15 286 730SMA Online Service Center:www.SMA-Service.com

ČeskoMagyarországSlovensko

SMA Service Partner TERMS a.s.+420 387 6 85 111SMA Online Service Center:www.SMA-Service.com

Türkiye SMA Service Partner DEKOM Ltd. Şti.+90 24 22430605SMA Online Service Center:www.SMA-Service.com

France SMA France S.A.S.Lyon+33 472 22 97 00SMA Online Service Center :www.SMA-Service.com

ΕλλάδαΚύπρος

SMA Service Partner AKTOR FM.Αθήνα+30 210 8184550SMA Online Service Center:www.SMA-Service.com

EspañaPortugal

SMA Ibérica Tecnología Solar, S.L.U.Barcelona+34 935 63 50 99SMA Online Service Center:www.SMA-Service.com

United Kingdom SMA Solar UK Ltd.Milton Keynes+44 1908 304899SMA Online Service Center:www.SMA-Service.com

Italia SMA Italia S.r.l.Milano+39 02 8934-7299SMA Online Service Center:www.SMA-Service.com

Australia SMA Australia Pty Ltd.SydneyToll free for Australia:1800 SMA AUS(1800 762 287)International: +61 2 9491 4200

http://www.SMA-Service.com









13 Contact SMA Solar Technology AG


United ArabEmirates

SMA Middle East LLCAbu Dhabi+971 2234 6177SMA Online Service Center:www.SMA-Service.com

India SMA Solar India Pvt. Ltd.Mumbai+91 22 61713888

ไทย SMA Solar (Thailand) Co., Ltd.กรุงเทพฯ+66 2 670 6999

대한민국 SMA Technology Korea Co., Ltd.서울+82-2-520-2666

South Africa SMA Solar Technology South AfricaPty Ltd.Cape Town08600SUNNY (08600 78669)International: +27 (0)21 826 0699SMA Online Service Center:www.SMA-Service.com

ArgentinaBrasilChilePerú

SMA South America SPASantiago de Chile+562 2820 2101

Other coun-tries

International SMA Service LineNiestetal00800 SMA SERVICE(+800 762 7378423)SMA Online Service Center:www.SMA-Service.com




www.SMA-Solar.com

user manual - sma fuel save controller 2files.sma.de/dl/26900/fsc20-ba-en-22.pdf · sma solar...

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