engine ga governing gns2500 series system ...gns2500 series generator set controller e ngine g...

GNS2500 SeriesGenerator Set Controller

ENGINE

GOVERNING

SYSTEM

Governors America Corp. 720 Silver Street Agawam, MA 01001phone: 413.786.5600 fax: 413.789.7736

[email protected]

1

GAC’s Generators Set Controller Series (GNS2500 Series) is a family of high-ly-flexible, full authority, generator set controllers for AMF applications. The GNS2500 Series, designed for both electronically and mechanically con-trolled engines, is ruggedly constructed with simple-to-use microprocessor technology.

For detailed descriptions of all features, functions, setup, and operation of the GNS2500 Series; please consult the GNS Product Users Guide. Config-uring the GNS2500 Series requires use of GAC’s SmartVU software. Both the GNS Product Users Guide and GAC’s SmartVU are available for down-load at www.Governors-America.com.

Models Covered in this Publication

Model DescriptionOperating

TemperatureMounting Diagram

Wiring Diagram

Hardware Included Hardware Needed Manual Needed*Software Needed

SmartVUTM*

GNS2502 GNS2502E AMF Genset Control -20˚C to +85˚C DIagraM 1. DIagraM 4.

(4) Flat Washers, Split Washers, Nuts

none required PUG4123 SF60-0003

GNS2504 GNS2504E AMF Genset Control -40˚C to +85˚C DIagraM 1. DIagraM 4.



GNS2502D GNS2502DE Remote Display -20˚C to +85˚C DIagraM 1. DIagraM 5. & 6.



GNS2504D GNS2504DE Remote Display -40˚C to +85˚C DIagraM 1. DIagraM 5. & 6.



GNS2504B GNS2504BE

AMF Genset Control, No Display

-40˚C to +85˚C DIagraM 2. or 3. DIagraM 4. (2) Lower Mounting

Spring Loaded DIN rail Clips

(2) M5 Screws, Flat Washers, Split

Washers, Nuts, optional

PUG4123 SF60-0003

This bulletin is not intended to replace the Product User Guide. Refer to the GNS2500 Series’ PUg4123 for complete product overview available for download at www.Governors-America.com.

Please read the following instructions and visually inspect this product for damage from shipping before installing. It is your responsibility to have a quali-fied person install this unit and make sure it conforms to local codes.

FRONT PANEl MOUNTING

The front panel mount versions of the GNS2500 Series (GNS2502, GNS2504, GNS2502E, GNS2504E) and remote GNS2500 Series (GNS2502D, GNS2504D, GNS2502DE, GNS2504DE) displays should be mounted in a location that is protected from the elements and with adequate security to prevent unauthor-ized access (if desired). See (TaBLE 1.) for hardware needed for installation. To mount the controller to the panel, cut a hole 6.890” [175.0 mm] x 4.450” [113.0 mm] and drill 4 (Ø 0.227” / 0.232” [Ø 5.8 mm / 5.9 mm] holes for mounting screws. (see DIAGRAM 1.) Place the unit in front of the panel aligning the 4 mounted screws on the back of the unit with the pre-drilled holes. Secure the module in place with the mounting hardware provided.

TaBLE 1.

2X 0.122” [3.1mm]

4X Ø 0.227” / 0.232” [Ø 5.8mm / 5.9mm]

4.450” [113.0mm]

2X 0.377” [9.6mm]

6.890” [175.0mm]

DIagraM 1.

ISO 9001CERTIFIED

OVERNORS

MERICA

ORP.CAG

™

PIB4127 C

This document is subject to change without notice. Caution: None of GAC products are flight certified controls including this item.

2

GNS2504B, GNS2504BE Mounting – DIN Mount EN 500022 BS 5584 Standard [DIN46277-3-NFC63015] DIN 3To mount the GNS2504B, GNS2504BE to the DIN rail, clip the 4 upper mounting clips on the back side of the unit on the top of the DIN rail. Secure the unit to the bottom of the DIN rail with the lower mounting spring loaded DIN rail mounted clips. (see DIagraM 2.)

BACK PANEl MOUNTING

The back panel mount version of the GNS2500 Series (GNS2504B, GNS2504BE) is designed to be mounted within the control box of the genset. The GNS2504B, GNS2504BE can be mounted in either of two ways, DIN rail or direct mounted. See (TaBLE 1.) for hardware needed for installation. Operator access to this device is not required.

GNS2504B, GNS2504BE - Direct MountingTo mount the GNS2504B, GNS2504BE to the panel, drill 2 ( Ø 0.227” / 0.232” [5.8 mm / 5.9 mm drill size]) holes for mounting screws. Align the controller with the pre-drilled holes. Secure the module in place with (2) M5 screws. (see DIagraM 3.)

DIagraM 2. (4) Upper Mounted Clip

1.391” [35mm]

Spring Loaded DIN Rail Clips

DIagraM 3.

BINARY INPUTS

-+ D+

BATTERY8-32 VDC

7654321

LB178-2

BO3BO1C98

MAGP/UN BO2

RELAYSBO4

GCA B

GENERATERCURRENT

LB178-1

CANL S H

RS232/485

OUTPUTSBINARY C

N 89 6 57 CGENERATOR VOLTAGEANALOG INPUTS

- +3

- +4

+-- +2 1 N AB

7.6227”

[193.6mm]

2X Ø 0.227” / 0.232” [Ø 5.8mm / 5.9mm]

CMAINS VOLTAGE

N AB

3

BEFORE BEGINNING INSTAllATION Disconnect all electrical power to the machine. Make sure the machine cannot operate during installation. Follow all safety warnings of the machine manufacturer. Read and follow instructions carefully.

DIagraM 4. Basic Wiring Diagram

-12

/24V

DC

B

atte

ry

ALT

ER

NAT

OR

2

+

10 a

mp

Fuse

ESTOP

FAC

TOR

Y IN

STA

LLE

D M

OD

EM

RJ1

1 (O

PTI

ON

)

SE

CO

ND

RS

232

PO

RT

(GN

S24

04B

, GN

S25

04B

E O

NLY

)

22 A

WG

TWIS

TED

SH

IELD

ED

PAIR

FUEL SOLENOID

PR

ES

TAR

T

2

MAGNETICPICK-UP

STARTER

2

2

FUE

L S

OLE

NO

ID

STA

RTE

R

DIES

EL/G

AS E

NGIN

E

GL3

3

WA

RN

ING

V B

ATA

LAR

M

1

ON

21

ON

4 23

FUEL LEVEL

OIL PRESSURE

ENGINE TEMP

N

2

GENE

RATO

R

L1L2

2

1

GC

B F

/B

L

MC

B

L3

L2L1

N

MA

INS

V B

ATV

BAT

V B

ATV

BAT

HO

RN

V B

AT

OIL

PR

ES

SU

RE

EN

GIN

E T

EM

P

FUE

L LE

VE

L

V B

AT

V B

AT

MC

B F

/B

V B

AT

1

GC

B

NO

TE:

SIN

GLE

LIN

E B

RE

AK

ER

CO

NTR

OL

W /

FEE

DB

AC

K S

HO

WN

.

18

AWG

RS

-232

3-W

IRE

NU

LL M

OD

EM

CA

BLE

.

4. U

.O.S

. ALL

WIR

ES

TO

BE

22

AWG

.

321

GN

S250

4B, G

NS2

504B

E O

NLY

RE

MO

TE S

TAR

T

FAU

LT R

ES

ET

MA

N M

OD

E

OFF

MO

DE

AU

TO M

OD

E

MC

B F

/B (

ALL

GN

S25

00 S

ER

IES

)

GC

B F

/B (

ALL

GN

S25

00 S

ER

IES

)

CN5

BIN

AR

Y IN

PU

TS

12

34

67

98

MA

GP

/U

DET

AIL

C

RE

MO

TE S

TOP

2

D+

3

ON

124

4-20

mA

INP

UT

ON

OTH

ER

WIS

E O

FF

DET

AIL

E

JUM

PE

R T

O B

RID

GE

INP

UT

1 TO

OU

TPU

T 1

DET

AIL

D

WIR

ING

FO

R D

+ E

XC

ITAT

ION

12/2

4VD

C

Bat

tery

3R

ELA

YS

4

DET

AIL

B

DET

AIL

A

RS

485

CA

N

21

ON

RS

485

CA

NTE

RM

INAT

ION

RE

SIS

TOR

S

W. J

UM

PE

RS

W. D

IP S

WIT

CH

ES

Jum

per O

N P

ins

120Ω

Ter

min

atio

n P

rese

nt

Jum

per O

FF P

ins

No

Term

inat

ion

Pre

sent

Sw

itch

ON

120

Ω T

erm

inat

ion

Pre

sent

Sw

itch

OFF

No

Term

inat

ion

Pre

sent

D+

DE

TAIL

A -

Sw

itcha

ble

term

inat

ion

resi

stor

s fo

r RS

-485

or C

AN

bus

net

wor

ks th

at

requ

ire te

rmin

atio

n.

DE

TAIL

B -C

onne

ct b

atte

ry p

ositi

ve to

one

sid

e of

the

norm

ally

ope

n re

lay

and

the

othe

r sid

e, th

ru d

iode

, to

the

D+

term

inal

of t

he a

ltern

ator

for D

+ E

xcita

tion.

DE

TAIL

C -

Exp

oded

vie

w o

f Bin

ary

Inpu

ts

DE

TAIL

D -

JUM

PE

R IN

STA

LLE

D -

If B

inar

y In

put 1

is a

ssig

ned

to E

-STO

P an

d B

inar

y O

utpu

t 1 is

ass

igne

d to

FU

EL, F

UEL

Out

put i

s co

ntro

lled

by E

-STO

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put t

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jum

per.

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PE

R N

OT

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ED

- FU

EL O

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t is

cont

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d by

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STO

P In

put t

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cont

rolle

r sof

twar

e on

ly.

DE

TAIL

E -

Dip

switc

hes

for c

onfig

urin

g th

e an

alog

inpu

ts.

The

switc

hes

are

ON

on

ly w

hen

conn

ectin

g to

a 4

-20m

A ci

rcui

t.

MA

INS

PIB4127 C


4

Physical Inputs

Output Description E Defaultsrecomm.

WireUtility/

generator

Voltage

Inputs

A / L1 Voltage 0-600VAC

18 AWGB / L2 Voltage 0-600VAC

C / L3 Voltage 0-600VAC

N / Neutral

generator

Current

Inputs

A / L1 Current 5A

18 AWGB / L2 Current 5A

C / L3 Current 5A

G / Neutral

Mag P/U Mag P/U 0.5-30 VAC RMS, 10KHz Max

22 AWG

Twisted /Sheilded

Pair

analog

Inputs

Analog 1 Default: Oil Pressure Oil Pressure

22 AWGAnalog 2 Default: Coolant Temp Coolant Temp

Analog 3 Default: Fuel Level Fuel Level

Analog 4 Default: Not used Not used

1. All analog inputs accepts the following signals: 0–5V, 4-20mA,0-20mA,0-100mV, Resistive (0-2.4k), Thermocouples (Type K).

2. There are four programmable graphs with a minimum of 2 points and a maximum of 10.

Note: When connecting a single wire resistive input, make sure the second input to the analog input is connected to ground.

Binary

Inputs

Binary 1 Default: E-Stop GCB F/B O/C

22 AWG

Binary 2 Default: Remote Stop E-Stop

Binary 3 Default: AUTO Mode MAN Mode

Binary 4 Default: OFF Mode OFF Mode

Binary 5 Default: MAN Mode AUTO Mode

Binary 6 Default: Fault Reset Remote S/S

Binary 7 Default: Remote Start Run All

Binary 8 Default: MCB F/B Day Lo Warning

Binary 9 Default: GCB F/B O/C Day Hi Warning

1. All binary inputs are closed to ground.

D+ D+Belt Break (alternator not

functioning). Not Enabled 18 AWG

1. To flash the alternator, connect alternator D+ to one side of one of the normally open relay

contacts with diode and the other side to B+; then assign the relay to “Starter”. (See DIagraM

4, DETaIL B)

Battery + 10 Amp Fused

18 AWG- Ground

CaN

L CAN Low

22 AWG

Twisted /Sheilded PairS Shield

H CAN High

Physical Outputs

Output Description E Defaults Notesrecomm.

Wire

Binary Outputs

Binary 1Form C relay Default: Fuel

StarterForm C Relays rated at 5A @ 125VAC, 28VDC

18 AWGBinary 2

Form C relay Default: Starter

Fuel

Binary 3Form a relay Default: Starter

Prestart 1 Form A Relays rated at 3A @ 30VDC

18 AWGBinary 4

Form a relayDefault: Prestart

Idle

Binary 5 Default: GCB Open/CloseGCB Open/Close Binary Outputs

5-9 are open collector, close to ground, diode protected to battery VDC.

22 AWG

Binary 6 Default: HornGenerator Running

Binary 7 Default: Common Alarm N/C

Binary 8 Default: Common Warning N/C

Binary 9 Default: UCB Open/Close N/C

WIRING the GNS REMOTE DISPlAYS TO the GNS CONTROLLER

gENEraL SUggESTED WIrINg INSTrUCTIONS

1. Battery positive(+) input should be fused for 10Amps.

2. The Magnetic Speed Sensor should be twisted and shielded the en-tire length and CAN connections must be twisted and shielded for the entire length.

3. The shield should be insulated to insure that no other part of the shield comes in contact with engine ground, otherwise stray signals may be introduced into the GNS2500 Series causing erratic operation. Shield should be tied at one end only.

4. For specific wiring instructions, refer to DIagraM 4. & TaBLE 2 & 3.

5. The GNS2500 Series is a highly configurable controller. Basic wiring diagram provided is for a basic generator set. Wiring configurations will vary. Minimum wire sizes specificied, actual wire size depends on application.

LB178-3

BATTERY8-32 VDC

+ -D+

BINARY INPUTS

21 43 75 6 98BO2P/U

MAG

CN BO1 BO3

RELAYSBO4

CCURRENT

GENERATOR

A B G

LB178-1

LB178-2

CGENERATOR VOLTAGEN B A+-+

1ANALOG INPUTS

-2

RS232/485

OUTPUTSBINARY

6 57 - +3

- +4

CANL S H

CN 89

RS232 FEMALE TO FEMALE NULL MODEMORRS485 FEMALE TO FEMALE STRAIGHT THROUGH

RS232 FEMALE TO FEMALE NULL MODEM

ANALOG INPUTS

RS232/485

HSLCAN BINARY

OUTPUTS

9 8 7NC

56 4+-

123+ +-- - +

GENERATOR VOLTAGEN C B A

LB178-2

BO4 CURRENTB

GENERATOR

A C G

LB178-18

8-32 VDC

D+

BATTERY

+

BINARY INPUTS

1- 2 3 4 5 6 7N

9 CP/U

MAGBO1 BO3BO2

RELAYS

LB178-3

RS232 FEMALE TO FEMALE NULL MODEMORRS485 FEMALE TO FEMALE STRAIGHT THROUGH

CUTILITY VOLTAGE

N AB

CUTILITY VOLTAGE

N AB

12/24VDC Battery

10 amp Fuse

TaBLE 2.

TaBLE 3.

12/24VDC Battery

10 amp Fuse

gNS remote Display

gNS remote Display

gNS remote Display

Back Mount gNS

Back Mount gNS

DIagraM 5. Back Mount gNSConnected to (2) remote Displays DIagraM 6. Stand alone gNS

Connected to a remote Display

5

USING THE GNS DISPLAY Definition LEDs

Status LED

A

Ready/Auto GNS is in Auto Mode and is ready to run GreenRunning Generator is running GreenSupplying Load Generator is generating power GCB is closed GreenNot in Auto GNS is in MAN Mode or Off Mode RedWarning A warning protection has been triggered YellowShutdown/Alarm A alarm protection has been triggered Red

B MainsAlarm RedWarning YellowOK based on enabled alarms Green

C MCB/GCBMCB/GCB Tripped or Faulted Red MCB/GCB Closed Green MCB/GCB Open Off

D (G)

Generator in Active Alarm Condition and shutting down or still running due to run all asserts RedGenerator in Active Warning Only condition and still running Yellow

Engine at nominal speed GreenGenerator not running due to normal or alarm shutdowns Off

Buttons

E

Start Start engine, “MAN Mode” only

Stop Stop engine (when pressed twice immediate stop engine) MAN Mode Only

Horn Silence If sounding, turns off horn until next new warning or alarm occurs

Fault ResetClear stored alarms. Resets system to allow normal operation. Caution, resetting faults when in Auto mode and remote start/stop signal active, may cause controller to initiate start sequence immediately.

MCB Open / Close MCB Open/CloseGCB Open / Close GCB Open/Close

F

Enter Primarily used to select and accept changed data.Left Arrow Screen / Parameter Changes Right Arrow Screen / Parameter ChangesUp Arrow Screen / Parameter ChangesDown Arrow Screen / Parameter ChangesBack Escape Button

Screen G 64 x 128 Graphical Display

DIagraM 7.

DIagraM 8. - MENU System

TaBLE 4.

TaBLE 5.

A

B

FD

C

C

G

E

ECUMonitor Screens

MainScreen

Binary Output States

Binary Input

States

Analog Meter

Screens

Power Screens

Generator Metering

Set Points

System Settings

Engine Parameters

Engine Protections

Generator Protections

Mains Protections

Setup / Test

Screen TestLED Test

Keyboard TestComm Test

Comm ModeLCD Contrast

LED BrightnessBacklight

Screen AlertScroll RateKey Delay

Temp ScaleOil P Scale Auto LogoutFault AlertFMI TypeDM1 Alert

Conv MethodDisplay System VerSystem Control Ver

CAN DTC List Event Log

System Settings

Password LoginChange Password

Gen ConfigZero LegHigh LegNom Volt

Nom AmpsNom Pwr

Phase Select Gen ConfigNom Freq CT RatioPT Ratio

Gear TeethGCB DelayHorn Period

D+Speed Inputs MasterSpeed Inputs Second Speed Inputs Tertiary

Engine Speed

Engine Parameters

RPM DisconnectOil Disconnect Prelube Period Prelube Pause

Idle/CoolingAfter Cool PeriodPrestart Period 1Prestart Period 2 Prestart Period 3 Prestart Period 4

Crank PeriodCrank Pause

Crank AttempsEngine Type

Gas RPM DelayGas RPM Pause

Vent Period Idle PeriodStop Period

Cooling Period

Engine Protections

OverspeedLow Fuel Delay

Low Fuel WarningLow Fuel AlarmLow Oil P Delay

Low Oil P Warning Low Oil P AlarmLow Temp Delay

Low Temp Warning Low Temp Alarm Hi Temp Delay

Hi Temp WarningHi Temp Alarm

Battery Over VoltBattery Under Volt

Battery DelayEng Prot Delay

Service HrsRun Hrs

GeneratorProtections

Overload Alarm Overload Warning

Overload DelayOver Curr AlarmOver Curr Delay

Curr Unbal Alarm Curr Unbal Delay

IDMTOver Volt Alarm

Over Volt Warning Under Volt Warning

Under Volt Alarm Volt Delay

Volt Unbal Alarm Volt Unbal DelayOver Freq Alarm

Over Freq WarningUnder Freq WarningUnder Freq Alarm

Freq DelayMin Voltage

Left Arrow then ENTER




UP

UP

UP

UP

UP

DO

WN

DO

WN

DO

WN

DO

WN

DO

WN

UP

Wrap to Generator Metering

EN

TE

R

RIGHTRIGHT RIGHT RIGHT

LEFT LEFT LEFT LEFT

Wrap to the Main Screen

RIG

HT

RIG

HT

RIG

HT

RIG

HT

LEF

TLE

FT

LEF

TLE

FT

RIG

HT

UP

DO

WN

UP

DO

WN

RIG

HT

LEF

T

RIG

HT

LEF

T

Alarms / Warning

RIGHT

LEFT

Analog Inputs

Mains Protections

MCB Open Event MCB F/B DelayReturn Delay

Volt UnblalanceVolt Unbal DelayOver Volt Alarm

Over Volt Warning Under Volt WarningUnder Volt Alarm

Voltage DelayOver Freq Alarm

Over Freq WarningUnder Freq WarnUnder Freq Alarm

Freq Delay


MainsMetering

RIG

HT

UP

To ALARMS/WARNINGS

To ALARMS/WARNINGS

To ALARMS/WARNINGS

To ALARMS/WARNINGS

To ALARMS/WARNINGS

To ALARMS/WARNINGS

To ALARMS/WARNINGS

LEFT

LEFT

LEFT

LEFT

LEFT

RIGHT

RIGHT

RIGHT

RIGHT

RIGHT

RIGHT

RIGHT

RIGHT

LEFTWraps to Alarms /

Warnings

Wraps from Alarms /

Warnings

LEFT

LEFT

RIGHT

LEFT

LEF

T

Wraps to Metering Screen

Wraps from Metering Screen

General Rules for Editing Set Points

Press ENTER, then LEFT/RIGHT ARROW to change from AUTO/MANUAL/OFF MODE.

Press ENTER, then UP/DOWN ARROW to change display from RPM to TOTAL POWER [TPw].

Press ENTER to select and accept a setpoint.

Press DOWN ARROW to go to the next set point.

Press UP ARROW to go to the previuos set point.

Press LEFT ARROW to cancel an entry.

Press RIGHT ARROW to skip to the next page.

Press BACK to move back one level in menu system.

MAIN SCREEN

Press ENTER to change mode LEFT/RIGHT.

*

*

*

* only displayed if ECU configured

Special Functions

Function Key Sequence / NotesChange Language

Hold “Horn Silence” and press ENTER. Display will cycle to next language available.

PasswordsThe GNS supports 6 user defined security levels (0-5). Each set point can be assigned a level to view the parameter, and a level to adjust the

parameter. See TaBLE 6. for default passwords.

Level Password0 No Password1 172 343 514 685 85

The passwords and set points for each security levels can be changed using GAC’s SmartVU software.

PIB4127 C


6

TROUBlESHOOTING

Engine cranks, starts, then stops.

Crank Fail Shutdown

• Engine is not reaching start RPM• Oil pressure not high enough• Mis-configured speed input source

• Check magnetic pickup• Check oil pressure sensor• Check start RPM set point

• Check start oil pressure• Check speed input configuration (e.g., if engine is using magnetic pickup, make sure it is configured)

Engine cranks and starts, then engine stops but continues to crank.

• Starter and fuel outputs are mis-wired or mis-configured

• Check fuel and starter configuration. (By default, fuel is on discrete output 1 and starter is on discrete 2.)• Make sure the starter and fuel are wired properly.

Current is not properly displayed.

• Improper CT ratio• Improper wiring of CT’s

• Check CT primary and secondary set points.• CTs have a polarity. Verify the orientation of the CT. The phase of the current being captured by the CT must be in phase with the voltage inputs.

Power is not properly displayed.

• Mis-wired CTs or voltage inputs • Verify phase wiring of CT• Verify phase wiring of voltage inputs• Check CT primary and secondary set points• Enable the phase wiring voltage protection to verify the phase to phase wiring.

• Enable the phase wiring current protection to verify the current inputs are in phase with the voltage inputs – note: if the CT’s are wired to the proper phase, but are installed in reverse polarity the voltage and current will be 180 degrees out of phase.

Improper oil pressure be-ing displayed.

• Improperly defined analog curve for sender• Analog input for pressure sender not assigned• Ungrounded unused leg of analog input

• Check for accuracy of the sender profile.• Verify the analog input is mapped for use as an oil temperature sender.• Verify the resistance for the sender is correct for the actual temperature of the engine.• For a single wire resistive sender, verify the unused leg of the analog input is connected to ground.

The gNS is shutting down on a high coolant tempera-ture alarm immediately after the engine is started.

• Improperly defined analog curve for the sender

• Verify the curve of the sender. Some senders do not begin operating until a specific temperature is reached (e.g., 100F). This can be especially problematic if it is a reverse curve, i.e., a low resistance equates to a high temperature. With these senders, the resistance will appear to be low, or close to zero until the “turn on” temperature is reached.

Cannot see set point. • Logged in at wrong security level • Log in at security level high enough to view the set point.

Cannot start generator from front panel.

• GNS is not in Manual Mode• GNS previously shutdown because of a generator or engine protection.• Emergency stop condition• Starter binary output is not assigned

• Make sure the unit is in Manual Mode (check the display)• Check for shutdown and find cause. If generator condition has been corrected, press Fault Reset.• Make sure emergency stop switch is in proper position and is properly assigned. Typically, the emergency stop is a assigned to a normally closed input. If the emergency stop function is assigned to a discrete input, and the input is assigned to be normally open then the input must be a energized.• Check the starter wiring an make sure the starter function is properly mapped to the starter function.

rPM disappears from display after the engine is running.

• This is normal operation. RPM is replaced with power.

• Once the generator is up to speed, RPM and frequency (Hz) essentially conveying the same information as one can compute the other by applying a multiplier. The multiplier is derived using the nominal frequency and the nominal speed set points.

The fuel and starter are engaged as soon as the connector is plugged into the gNS.

• The start or the fuel solenoid are connected to the normally closed pins of the relay.

• Verify the connection is to the normally open contact. Discrete outputs 1 and 2 have form C relays, which have both normally open and normally closed contact.

SmartVU cannot connect to the gNS.

• GNS is not powered on• Invalid password• High noise from ignition cables (non diesel)

• Check make sure GNS is powered on• Insure the password is correct for the level being logged in to.• Verify that you are using the proper cable.

remote display does not consistently communicate to the gNS.

• if using RS-232, distance between display and GNS is greater than 27 feet (9m).• If using RS-485, terminating resistors not configured.

• If using RS-232 and distance is greater than maximum allowed distance, consider using RS-485.• If using RS-485, and GNS is last device on the cable, install jumpers to enable the terminating resistors.

gNS resets during crank. • Starter is drawing too much current and volt-age is sagging too low for too long.

• Check the crank capacity of the battery – the battery may need to be replaced or re-charged.

gNS display resets while cranking or running.

• High noise from ignition cables is interfering with the GNS.

• Replace high noise ignition cables with noise suppression cables.

EnvironmentalAmbient Operating Temperature...................................GNS2504–Temp:-40 to +85°C

GNS2502–Temp:-20 to +85°C

Relative Humidity.........................................................................95% non-condensingAgency Approvals............................................................UL2200*, UL508*, CE, CUL*

Input ParametersPower ......................................................................................................8VDC-32VDCRide Thru .................................................................................................0V for 50msPolarity Negative ................................................................................................GroundSpeed Sensor Signal ............................................. 0.5 – 30 Volts RMS, 30-1200 ohms9 Assignable Binary Inputs ..............................................................................0-32VDC4 Analog Inputs.....................................................Wide range of senders, includingVDO (e.g.,OilPressure,CoolantTemp)

0-5VDC +/-1.0%,4-20mA +/- 5.0%0-2.4K +/- 5.0 %

0-32mV +/- 1.0 % Generator Voltage....................................................................480VAC RMS Nominal 600VAC Max phase to phase 277VAC RMS Nominal phase to neutral

346VAC RMS Max phase to neutralAccuracy +/- 1%

Generator Current (CT Secondary)..........................................................5A NominalAccuracy +/- 1%

Output Parameters2 Form A Relay............................................................................................. 30VDC, 3A2 Form C Relay..............................................................................125VAC, 28VDC, 5A5 Binary Outputs...............................................................................0-32VDC,0-500mA

CommunicationsPC Configuration & Monitoring.............................................Modbus on RS-232/485ECU................................................................................................................J1939Remote Devices.........................Modbus on RS-232 or RS-485, J1939 on CAN bus

reliability

Testing.....................................................................................100% Functionally Tested

PhysicalOverall Dimensions................................................................................ 6” x 9” x 1.75” 152mm x 229mm x 445mmPanel Opening Size.............................................................................. 4.45” x 6.89” 113mm x 175mmWeight.................................................................................................... ............ 1.3lbs 0.59kgMounting........................................................................................Front Panel MountedGNS2504B, GNS2504BE...............................................................Back Panel/Din Rail

SmartVU RequirementsMicrosoft Windows 2000-Windows Vista...................Pentium II, 64M RAM, 10M Disk VGA, Serial Port* Non-E Versions Only

Options• Factory Installed Internal Modem• GNS2502D, GNS2502DE & • GNS2504D, GNS2504DE

Remote Display • EAM Ethernet Adapter• GNS2504B, GNS2504BE

Blackbox • Non-Display Control

• External Modem• Custom Displays (up to 65

LEDs, up to 24 Switches)• Remote Contact Relay Module • Remote Annunciator Panel• Remote Analog Gauge Drivers

Specifications

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