vm-702b shinkawa

7/29/2019 VM-702B shinkawa

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MANUAL No. 6G10-024

Published in Sep. 2010

Revised in Oct. 2010

VM-7 Series MonitorVM-702BAbsolute Vibration Monitor ModuleManual

zThis manual describes the VM-7B-type racks and modules.zThis manual is solely designed for technicians to set, maintain, check for the

VM-7 Series Monitor and deal with trouble on the monitoring system.Use of this manual is restricted to those who are qualified or authorized to

perform the service.z Read this manual thoroughly and understand the contents before setting,

maintaining, checking and trouble-shooting for VM-7 Series Monitor.z Keep this manual so that the operator can refer to it when needed.

SHINKAWA Sensor Technology, Inc.


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VM-702B Preface

1

Thank you very much for purchasing the VM-7 Series Monitor.

The VM-7 Series Monitor (hereafter "the unit") comes with ten manuals which contain information for differentoperations as well as tasks.

This manual is one of the ten.

Name VM-7B System Manual

Intended users

of the manual

Personnel who maintain the unit, install it to the control panel and connect the wires

Personnel who perform the detail settings and maintenance of the unit

The use of this manual is restricted to those who have completed the maintenance training

course run by our company.

Description x Description of the unit

x Specifications and outlinex Description of unpacking and accessories

x How to install the unit into the control panel

x How to connect the unit

x Regular inspection

x How to set the unit

x Troubleshooting

x Names and functions of the individual parts

Name VM-701B Vibration/Displacement Monitor Module Manual

Intended users

of the manual




Description x How to set the unit

x How to adjust the unit

x Troubleshooting

Name VM-702B Absolute Vibration Monitor Module Manual

Intended users

of the manual




Description x How to set the unitx How to adjust the unit

x Troubleshooting

Name VM-703B Tachometer & Eccentricity Monitor Module Manual

Intended users

of the manual






x

Troubleshooting


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VM-702B Preface

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Name VM-704B Temperature Monitor Module Manual

Intended users

of the manual




Description x How to set the unitx How to adjust the unit

x Troubleshooting

Name VM-706B Rod Drop Monitor Module Manual

Intended users

of the manual






x

Troubleshooting

Name VM-721B 18-Channel Relay Module Manual

Intended users

of the manual





x Troubleshooting

Name VM-741B Local Communication & Phase Marker Module Manual

Intended users

of the manual





x Description of communication specifications

x Troubleshooting

Name VM-742B Network Communication Module Manual

Intended users

of the manual


The use of this manual is restricted to those who have completed the maintenance trainingcourse run by our company.


x Description of communication specifications

x Troubleshooting

Name VM-771B MCL View Operation Manual

Intended users

of the manual

Operators who are in charge of the maintenance of the unit and who confirm the screen in

their work

Description x Description of the screen

x How to operate the unit


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VM-702B Preface

3

Be sure to read this manual thoroughly and understand the contents before using this unit.Keep this

manual so that the operator can refer to it when needed.

If you have any inquiry about this unit or manual, contact the sales office where you purchased the unit.

For the use of the unit, adequate knowledge about other instruments connected to the unit and transducers

is also required.In addition, not only the contents of this manual, but common sense also needs to be

applied for the safe use of the unit.

This unit has had its EMC (Electro-magnetic compatibility) evaluated by various noise tests.However,

since the performance of the unit varies depending on the environmental conditions such as below, follow

instructions in this manual to stabilize the system.

Intensity of noise

Temperature and humidity

Layout of the unit

When reselling the unit as an assembly or transferring the unit (to a third party), please provide the end

users with this manual.

When discarding the unit, follow local government regulations.

Company and product names contained herein are trademarks or registered trademarks of their respective

owners.

Copyright is retained by Shinkawa Sensor Technology, Inc.No part of this document may be disclosed or

reproduced in any form without prior consent of SHINKAWA Sensor Technology, Inc.

The appearance of the Device Config window differs by unit specifications.


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VM-702B Preface

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The company assumes no liability for any damage or injury caused by the user's fault including not

following the instructions of this manual or not installing or handling the unit in an appropriate manner.

The company shall not be liable for any direct or indirect damage, injury, or lost income resulting from

misuse, abuse, modification to or of any part of, or disassembling of the unit by the user.

Unless expressly stated herein, the company makes no other warranties, express or implied, including

without limitation, any warranty of merchantability, fitness for a particular purpose, or infringement of

intellectual property rights.

A Warranty Provision is included at the end of this manual.In the event that the unit failure occurs, the

company shall repair the unit in accordance with the Warranty Provision.

The company shall not be liable for any incidents resulting from the use of parts other than those of which

are recommended by the company.


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VM-702B Table of Contents

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Regarding the Manuals for the VM-7 Series Monitor.............................. 1

Important Notices ............................................................ 3

Disclaimer .................................................................. 4

Table of Contents ............................................................ 5

Chapter 1 For Safe Use of the Unit........................................................71.1 For Users of This Manual................................................................................................................71.2 Warning Symbols .............................................................................................................................71.3 Precautions for Handling.................................................................................................................8

1.3.1 Prohibited Uses..........................................................................................................................81.3.2 Compliances...............................................................................................................................9

Chapter 2 Overview of Absolute Vibration Monitor Module..............112.1 Functional Description ...................................................................................................................11

2.1.1 Measurement Function ...........................................................................................................112.1.2 Display Function.......................................................................................................................122.1.3 Alarm Function .........................................................................................................................122.1.4 Output Function........................................................................................................................132.1.5 Control Function.......................................................................................................................14

2.2 Names and Functions of the Individual Parts.............................................................................15

Chapter 3

Installation/Uninstallation of a Module..............................17

3.1 Module Installation Location .........................................................................................................183.2 Installing the Module ......................................................................................................................193.3 Uninstalling the Module .................................................................................................................20

Chapter 4 Module Setting.....................................................................214.1 Workflow ..........................................................................................................................................214.2 Setting the Internal Switch ............................................................................................................22

4.2.1 Recorder Output Selection Switch ........................................................................................224.3 Loading/Writing the Setting...........................................................................................................234.3.1 Loading the Setting..................................................................................................................23

4.3.2 Writing the Setting....................................................................................................................234.4 Editing the Channel Configuration...............................................................................................244.5 Common Module Settings.............................................................................................................264.6 Absolute Vibration Channel Setting.............................................................................................28

4.6.1 Basic Settings (Absolute Vibration Monitor) ........................................................................284.6.2 Analysis Settings......................................................................................................................334.6.3 Alarm Setting............................................................................................................................36

4.7 Relay Settings.................................................................................................................................384.7.1 Operation Settings ...................................................................................................................384.7.2

Configuring a Standard Relay Logic (Relay Logic1)...........................................................40

4.7.3 Configuring a Multistage Relay Logic (Relay Logic2) ........................................................42


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VM-702B Table of Contents

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Chapter 5 Adjustment of the Module ..................................................485.1 Connecting the Equipment (Connecting the Input Terminals) .................................................485.2 Connecting the Equipment (Connecting the Output Terminals)..............................................505.3 Adjusting the Gap (Bias) Voltage Measurement Value.............................................................515.4 Adjusting the Measurement Values .............................................................................................52

5.4.1 Absolute Vibration Monitor (REL: Relative Shaft Vibration) ..............................................535.4.2 Absolute Vibration Monitor (SEIS: Seismic Vibration)........................................................555.4.3 Absolute Vibration Monitor (ABS: Absolute Shaft Vibration) .............................................58

5.5 Adjusting the Recorder Output.....................................................................................................605.5.1 Absolute Vibration Monitor (REL: Relative Shaft Vibration) ..............................................605.5.2 Absolute Vibration Monitor (SEIS: Seismic Vibration)........................................................625.5.3 Absolute Vibration Monitor (ABS: Absolute Shaft Vibration) .............................................64

5.6 Adjusting the Voltage Measurement Values of the Analysis Board ........................................66

Chapter 6 Module Status Confirmation with MCL View.....................67

Chapter 7 Maintenance and Service ...................................................687.1 Exchange for Module.....................................................................................................................68

7.1.2 Setting the Module...................................................................................................................697.2 Service Life of the Unit (Replacement parts) .............................................................................697.3 Storage of the Module....................................................................................................................69

Chapter 8 Trouble Shoot ing .................................................................708.1 Troubleshooting..............................................................................................................................70

Warranty Provision


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VM-702B Chapter 1For Safe Use of the Unit

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Warning

Chapter 1 For Safe Use of the Unit

For the safe use of the unit, be sure to read the instructions below.

1.1 For Users of This ManualThis manual is solely designed for technicians to set, maintain, check for the VM-7 Series Monitor and deal

with trouble on the monitoring system.

Use of this manual is restricted to those who are qualified or authorized to perform the service.

1.2 Warning SymbolsThis manual uses the following symbols to increase awareness of possible dangers or harmful situations to the

user, and to guide in the safe operation of the unit.Be sure that you fully understand the contents of this manual

and follow the instructions herein.

Warning Symbols Description

This symbol is used to warn against the possibility of serious or fatal injury.

Follow the instructions to ensure safety.

This symbol is used to caution against the possibility of injury.

Follow the instructions to ensure safety.

This symbol is used to draw attention to the possibility of property damage.Follow the instructions to prevent damage to equipment.

Point In this manual, Point is used to highlight some important issues as well as to provide useful

information.

Caution

Caution


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Warning

1.3 Precautions for HandlingFor the safe use of the unit, be sure to follow the precautions below.

1.3.1 Prohibited Uses

Never disassemble or modify the unit.Do not use the unit under conditions that exceed itsspecifications.Failure to do so may result in malfunction of the unit, fire or injury.

Do not use radio equipment as a transceiver, or mobile phones around the unit.

If electromagnetic waves are radiated to the unit, signal cables or the transducer, the unit may not

provide satisfactory precision described in the specifications.

Avoid any contact with the component side, board or soldered parts of the instrument rack or the

module.

Failure to do so may result in damage to or malfunction of the unit.

The instrument rack and the module are precision instrument. Avoid any excessive shock or

vibration.


Avoid a voltage resistance test or a withstand voltage test in any places other than specified.

Failure to do so may result in damage to the unit.

Caution


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Warning

1.3.2 Compliances

Use of this unit requires expert knowledge.

Be sure to follow the instructions in this manual when installing the unit.

Failure to do so may result in malfunction of the unit, fire or injury.

Be sure to connect the earth cable.

Failure to do so may result in an electric shock, electrocution or malfunction of the unit.

Before installation, be sure to read the manuals for this unit as well as other instruments that are to

be connected.The use of this unit requires expert knowledge of instruments, and the knowledgeof any associated equipment.

Before any contact with the unit, be sure to touch the metal objects, etc. so that the static electricity

is discharged.

Static electricity accumulated in the human body may damage the unit.

Use a time-delay circuit protector.

In-rush current caused by power activation may damage the unit.The value of in-rush current isfrom a few to ten times higher than the normal level.(The value of in-rush current variesdepending on the timing of power activation and the impedance of the power supply.)

When carrying out a megger test, ensure that all the cables are disconnected from the driver

(transducer) as well as the converter.

After carrying out a megger test, ensure that any accumulated charge is discharged by

short-circuiting prior to reconnection.

Reconnecting the driver or the converter while the cables still carry a charge may damage the unit.

Be sure to connect the power input terminal to the power supply with the voltage and frequency

advised in the specifications.


Make sure to place the module in the instructed position when installing the module onto the

instrument rack.

Failure to do so may result in damage to the unit or malfunction of the turbine monitoring system.

Ensure that all the screws on the instrument rack are tightly fastened and the instrument rack is

securely fixed.

Also, be sure to use module fasteners to fix each module properly.

Caution


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Be sure to perform the following for the stability of the unit.

- Place surge killers around the unit, the related instrumentation equipment, and the relay around thesignal cables to which these are connected.

- Ensure that the screws are tightly fastened and the unit is securely fixed.- Ensure that an interlock function is added to the unit in order to prevent the unit from making

mechanical errors in the case it is damaged.

- Place the unit in a metal cabinet, etc. and ensure that the lid is closed while the unit is operated.- Use of ferrite cores (ZCAT3050-1330/TDK) can expect to reduce the noise induced by the cables to

a certain extent. It is recommended to use anti-noise devices in the case that the conditions

surrounding the unit are considered to be unfavourable.

Contact the sales office you purchased the unit from if any of the following occurs.Continued use of the unit under any of the conditions below may result in fire or malfunction.

- Abnormal odor is detected from the unit.- Overheats.- Is dropped.- Damaged packaging.

Ensure that an interlock function is added to the unit in order to prevent the unit from making

mechanical errors in the case it is damaged.

Install the unit in a place without the direct rays of the sun where the following conditions aresatisfied.Do not store it in a hot and humid location or any location where corrosive gases arepresent.

- Ambient temperature : -30 to 85C- Ambienthumidity : 20 to 90%RH (no condensation)

Caution


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VM-702B Chapter 2Overview of Absolute Vibration Monitor Module

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Chapter 2 Overview of Absolute VibrationMonitor Module

The absolute vibration monitor module is a dedicated vibration monitoring module that is capable of

simultaneously monitoring both the relative shaft vibration and absolute shaft vibration, or both the relative shaft

vibration and seismic vibration, of the rotating machinery.

The module is capable of receiving input from a maximum of two systems (relative vibration: two channels,

seismic vibration: two channels).

The recorder output or contact output corresponding to the input is externally output via the rear connector of the

instrument rack.

2.1 Functional Descript ionThis section provides the basic description of the measurement function, display function, alarm function, outputfunction and control function provided by the module.

2.1.1 Measurement Funct ionz Calculating the Gaps and Measurement Values

The offset voltage value and the amplitude value are detected from input signals to calculate the sensor set

gap voltage value and measurement value for each monitor.This module is capable of calculating the combination of following measurement values based on the input

signals for displacement vibration and velocity vibration.

Combination Output Channel 1/3 Output Channel 2/4

1 REL: Relative shaft vibration ABS: Absolute shaft vibration2 REL: Relative shaft vibration SEIS: Seismic vibration

3 SEIS: Seismic vibration ABS: Absolute shaft vibration

* REL (Relative): Relative shaft vibration, which is the displacement vibration output detected by the

displacement transducer* SEIS (Seismic): Seismic vibration, which is the output obtained by converting signals from the velocitytransducer to displacement vibration (amplitude)

* ABS (Absolute): Absolute shaft vibration, which is the output obtained by subtracting seismic vibration

from relative shaft vibration

z Calculating the Analysis Data (Optional)

Based on input signals, data required to analyze the vibration of the rotating machinery (1Xamplitude/phase, 2X amplitude/phase, etc.) is calculated.

This function is enabled only when the optional analysis function is added to the module.

z High-pass filter (low-cut filter)

A high-pole (10-pole) high-pass (low-cut) filter is available for selection, which is suitable under

circumstances in which the signal frequency is close to the noise frequency.

You can switch between the low-pole (4-pole or 2-pole) and high-pole high-pass (low-cut) filters byshorting between FILT1 and FILT2 terminals on the instrument rack.

z Suppression Function

This suppression is the function that cancels the floatation of the zero point by piping vibration or noise

when the machine is not running. The suppression can be set at 0.0 to 5.0% of the monitor range.

For details about the suppression setting, see "4.6.1 Basic Settings (Absolute Vibration Monitor) P.28".


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Warning

2.1.2 Display Funct ionz Indicators on the Front Panel

The indicators on the front panel show the OK alarm status.

For details about each indicator, see "1.1 For Users of This Manual P.7".

zInformation Displayed on MCL ViewBy installing MCL View on the local PC, you can view various information regarding the module.

2.1.3 Alarm Funct ionFor details about the alarm setting, see "4.6.3 Alarm Setting P.36".

z OK (Abnormal Input) Alarm

If the input signal level of the transducer becomes abnormal, the OK alarm is output.

Even when the input signal level returns to normal, the OK alarm is retained for approximately another 15seconds by the off-delay timer.

z Gap AlarmThe ALERT Alarm is output when the input signal level falls outside the range set for the gap alarm.

(The gap alarm is ORed with ALERT Alarm and output to ALERT Alarm.)This function is available only for the displacement vibration input channel.

z DANGER Alarm

DANGER Alarm is output when the measurement value exceeds the DANGER setting value.

z ALERT Alarm

ALRET Alarm is output when the measurement value exceeds the ALERT setting value.

z First-out Indication

It is possible to specify the channel on which alarms are output the earliest from those channels that thefirst-out indication function is active.For details about the first-out indication function, see "4.6.1 Basic Settings (Absolute Vibration Monitor)

P.28".

z Sequence

To prevent alarm output due to excessive vibration generated temporarily while starting up the machine,

this function expands the DANGER Alarm and ALERT Alarm settings by shorting between SEQ1 andSEQ 2 terminals on the instrument rack.(Amplitude: magnification, by 1 to 10 times, phase: Enable/disable cutoff)For details about the sequence setting, see "4.6.3 Alarm Setting P.36".

To activate the contact for external operation, you need to short between terminals for more than 1

second.


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Warning

z Alarm Delay

You can set the delay time (0.0 to 99.0 seconds) for each channel to prevent DANGER Alarm or ALERT

Alarm from being output by mistake due to noise or other reasons.For details about the alarm delay time setting, see "4.6 Absolute Vibration Channel P.28".

z Alarm Logic

Alarms for several channels can be output via AND or OR.

For details about the logic setting, see "4.7 Relay Settings P.38".

z Alarm Relay Mode

Either "normally de-energized" or "normally energized" can be selected for the alarm contact.For details about the alarm relay mode setting, see "4.7 Relay Settings P.38".

The use of "normally energized" (non-energized alarm) is recommended for the alarm relay mode.

The use of "normally de-energized" (energized alarm) may prevent the relay from being energizedwhen internal power supply is in an abnormal state.

z Alarm Reset Options

From the following options, select how the alarm should be handled when the input signal returns to normal:

Auto-Reset: The alarm contact output is cancelled automatically.

Self-hold: The alarm status is retained until a contact is operated to cause a short-circuit between RES1 and

RES2 terminals on the instrument rack, or until the alarm reset operation is performed on the VM-771BMCL View, or until alarm reset operation is performed using Modbus communication (optional).

For details about the alarm reset options for the absolute vibration channel, see "4.6.3 Alarm Setting P.36".For details about the reset options for alarm relay, see "4.7 Relay Settings P.38".

The alarm reset operation does not work while the alarm is output continuously.

2.1.4 Output Funct ionz Timed OK Channel Defeat

By enabling this function, shuts off DANGER Alarm, ALERT Alarm, indication values and recorder

outputs when the OK alarm is output.For details about how to set timed OK channel defeat, see "4.6 Absolute Vibration Channel P.28".

z Monitor Output

The buffered output of the input signal is output from the monitor/pulse output connector on the front

panel and the monitor output connector on the VM-76*B instrument rack.

The monitor output signals are not isolated from the input.The signal to be assigned to monitor output connectors 2 and 4 can be selected from velocity vibration(input signal obtained via buffer amplifier), seismic vibration and absolute shaft vibration.

For details about the monitor output setting, see "4.6 Absolute Vibration Channel P.28".

Caution


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Warning

z Recorder Output

The analog signals (voltage signals or current signals) proportional to the vibration value are output from

the recorder output connector on the VM-76*B instrument rack.For details about the recorder output setting, see "4.6 Absolute Vibration Channel P.28".

2.1.5 Control Functionz Danger Bypass

This function shuts off DANGER Alarm on channels. While the alarm is shut off, both the DANGER

bypass indicator on Local Communication & Phase Marker Module and the DANGER bypass indicatoron the MCL View window light up.This function can be operated from MCL View.

z Channel Bypass

This function shuts off DANGER Alarm, ALERT Alarm, OK Alarm, indication values and recorder outputs

for channels. While the alarm output is shut off, the OK Alarm indicator remains off and the ChannelBypass indicator remains lit on the MCL View window.

This function can be operated from MCL View.

While the bypass is enabled, the machine is not protected.

z Power-on Timer Mode

This mode is activated for 15 seconds immediately after power-on. While power-on timer mode isactivated, the OK indicator flashes and all alarm functions are shut off.


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2.2 Names and Functions of the Individual Parts

No. Name Function

1 CH1 OK indicator

CH1 is normal: On (green)

OK alarm occurs in CH1: Flash

2 CH2 OK indicatorCH2 is normal: On (green)






5Monitor output connector1

Connector that outputs the CH1 input signals via buffer amplifier.

6Monitor output connector2

Specify the signal to be output using Device Config, from one of thefollowing three types:

x CH2 input signals, which are output via buffer amplifier

x CH2 input signals (velocity vibration), which are integrated and

converted to displacement vibration

x CH1 and CH2 signals, which are computed and then converted to theabsolute vibration (displacement vibration) signals

7Monitor output connector

3Connector that outputs the CH3 input signals via the buffer amplifier.


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No. Name Function

8

Monitor output connector

4

Specify the signal to be output using Device Config, from one of thefollowing three types:

x CH4 input signals, which are output via buffer amplifier

xCH4 input signals (velocity vibration), which are integrated and

converted to displacement vibration

x CH3 and CH4 signals, which are computed and then converted to theabsolute vibration (displacement vibration) signals

9 Module fastenersFasteners used to fix the absolute vibration monitor module to the

instrument rack.

10 Main board Board on which electronic parts are mounted

11 Connector A Connector used to connect the unit to the motherboard

12 Connector B Connector used to connect the unit to the motherboard

13 Connector C Connector used to connect the unit to the motherboard


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VM-702B Chapter 3 Installation/Uninstallation of a Module

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Warning

Chapter 3 Installation/Uninstallation of aModule

This chapter describes how to install and uninstall a module.

Even while VM-7 is running, a module can be installed or uninstalled without affecting other modules.

Once a module is uninstalled, the alarm relay contact output terminal is in open mode.

If the alarm output of the module is assigned to the relay of other module, uninstall the module

using Channel Bypass.

When the Channel Bypass function is operating, no alarm is output even if the measurement value

exceeds the alarm setting value.

Before any contact with the unit, be sure to touch the metal objects, etc. so that the static electricity

is discharged.

Avoid any contact with the component side, board or soldered parts of the instrument rack or the

module.


The instrument rack and the module are precision instrument.Avoid any excessive shock orvibration.

Caution


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Warning

3.1 Module Installation LocationVM-702B Absolute Vibration Monitor Module can be installed in Slot 1 to 11.

Do not install the unit in slots other than the one specified above.Otherwise unit failure couldoccur.

Slot 1 to 11


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3.2 Installing the Module1 The circuit board of the module is set to the slit on the top and

bottom of the instrument rack. And insert it straight.

2 An upper and lower module fastener is evenly turned by the

hand. It fastens until the module shoulder hits the instrument

rack edge.

(Do not use a tool to tighten the fasteners.

The module is inserted into the connector located inside therack.)

3 Turn on the power of the module. If it is operating normally, the

LED on the front panel will be lit or flashing.

(Tighten the fasteners until the shoulder of the module come in

contact with the turned edge of the instrument rack.If the LED

does not light up within 10 seconds, the module may be faulty.

In such a case, immediately uninstall the module to prevent a

heating hazard etc.)

Over-tightening the module fasteners could deform the module.

Make sure to install the module in one of Slots 1 to 11 on the instrument rack.

Ensure that all the fasteners on the instrument rack are tightly fastened and the instrument rack is

securely fixed.

4 If MCL View and Device Config are connected, update rack configuration data.

For details about how to update the software, see Updating the information displayed on MCL View

P.20 and Updating the information displayed on Device Config P.20.

Turned edge ofthe instrumentrack

Shoulder of themodule

Module fastener

Caution


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3.3 Uninstalling the Module1 If the alarm output of the module is assigned to other module,

bypass that channel.

(See "4.2.2 Channel Reset Window" in MCL View OperationManual.)

2 Loosen the module fasteners of the uninstalled module evenly.

Turn it from the instrument rack to the omission of the screw.

(The module disengages from the connector located inside the

rack.)

3 Slowly slide out the module from the instrument rack.

4 If MCL View and Device Config are connected, update

software data.

For details about how to update the software, see Updating the

information displayed on MCL View P.20 and Updating the

information displayed on Device Config P.20.

Updating the information displayed on MCL View After installing the module:

The information regarding the installed module is not

displayed on the window.

After uninstalling the module:A cross is displayed over the position of the slot from which

the module has been uninstalled.

1 Click the [CONNECT] icon.

The latest information is reflected on the window.

Updating the information disp layed on Device Config After installing the module:

The information regarding the installed module is not

displayed on the window.

After uninstalling the module:A cross is displayed over the position of the slot from which

the module has been uninstalled.

1 In the [Communication] menu,

click [Get Configuration].

2 Click [OK].The latest information is reflected on the window.

Modulefasteners

1

1


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VM-702B Chapter 4 Module Setting

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Chapter 4 Module SettingThis chapter describes how to set the VM-702B absolute vibration monitor module.

4.1 WorkflowThis module can be set as follows:

Set the internal switch.

Recorder output selection switch See "4.2.1 Recorder Output Selection Switch".

Load the setting See "4.3 Loading/Writing the Setting".

Edit the channel configuration See "4.4 Editing the Channel Configuration".

Edit the setting

Module common setting See "4.5 Common Module Settings".

Absolute vibration channel setting See "4.6 Absolute Vibration Channel".

Relay setting See "4.7 Relay Settings".

Write the setting See "4.3 Loading/Writing the Setting".


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4.2 Setting the Internal Switch4.2.1 Recorder Output Selection Switch

To select the recorder output range, you need to change the switch on the module board.

After using the switch, change the Recorder Output Range setting for the channel using Device Config.

The switches corresponding to each channel are as follows:

CH1 SW600

CH2 SW601

CH3 SW602

CH4 SW603

1 Uninstall the module.

(See "3.3 Uninstalling the ModuleUninstalling the Module P.20".)

2 Select the switch position appropriate to the desired recorder output mode.

V: Voltage output (Example: 1V to 5 V, 0V to 5 V, 0V to 10 V)I: Current output (Example: 4mA to 20 mA)

3 After changing the switch setting, insert the module back in the slot.

(See "3.2 Installing the Module P.19".)

4 Check that the fasteners on the instrument rack are securely fastened.


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Warning

4.3 Loading/Writ ing the SettingTo change the module operation, you have to load the setting from the module, edit it, and then write it back to the

module again.

Load or write the setting according to the steps described below.

4.3.1 Loading the Setting


click [Get Configuration].

2 Click [OK].

Loading is completed.

4.3.2 Writing the Setting

When the channel configuration and settings are changed, alarm contacts may be output.

As the setting is written, the measurement values in MCL View and host network may disappear.


click [Set Configuration].

2 Click [OK].

Writing is completed.

Point Writing Mode

Two modes are available for writing the setting from Device Config to VM-7.

- With [Set Configuration], the setting is written to all modules on the instrument rack. It may take some time

to transfer the setting to all modules.

- With [Set Slot Configuration], the setting is written to the modules in the selected slots.

Caution

1

1


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4.4 Editing the Channel ConfigurationCheck that the internal switch settings are correct before proceeding to edit the channel configuration.

Connect the PC with VM-7 and start Device Config.

1 From [Device Tree] in the main window, select the module whose channel configuration you want toedit.

2 Click [Change Channel Type] on the [Edit] menu.

The Channel Configuration window appears.

1

2


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3 From [Channel List], select the channel whose function you want to change.

4 From the [Monitor Type] list, select the function to be assigned to the channel.

The following functions can be assigned to a channel:

(None) Select this function if you are not using the channel.

Absolute Vibration Select this function if you are using the absolute vibrationmonitor.

5 Click the [Change] button.

6 The change is reflected in [Channel List]. Click the [OK] button to confirm the change.

3 4

5

6


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4.5 Common Module SettingsThis section describes how to set the common information and functions for the modules.

1 From [Device Tree] on the left of the window, select the [Abs. Vibration] node.

2 Select the [Common] button on the upper right of the window to display the related setting items.

3 Set or check the following items:

Information

Serial Number The serial number is displayed.

Firmware ID The firmware ID is displayed.

Function

Timed-PowerON NOT-OK Output Select the OK alarm output status for the channel uponpower-on.

x Off: Do not output the OK alarm upon power-on.

x On: Output the OK alarm upon power-on.

Alarm / Relay Control Select Select the output for which to determine the delay time andreset method.

x Alarm: Determine the delay time and reset method for the

output generated immediately after alarm identification.

x Relay: Determine the delay time and reset method for the

output generated immediately after relay logic calculation.

* Make sure to set the same value for all modules in the same

rack.

1

23


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Information(Analysis)

Serial Number The serial number for the analysis board is displayed.

Firmware ID The firmware ID for the analysis board is displayed.


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4.6 Absolute Vibration Channel SettingThis section describes how to set the absolute vibration channel.

4.6.1 Basic Settings (Absolute Vibration Monitor)Set the basic functions related to the absolute vibration channel.


2 Select the [Channel] button on the upper right of the window to display the related setting items.

3 From [Group List] on the left side of the window, select [Basic1-3]. (Under development)


The absolute vibration monitor computes the input signals from two channels to measure relative shaft vibration,

seismic vibration and absolute shaft vibration. Thus, two channels are required to set the absolute vibrationmonitor.

Signals to be measured with this monitor can be selected from the combinations shown below. (The setting is

performed using [Measure Mode].)

z If REL (relative shaft vibration) is assigned to the first output channel and SEIS (seismicvibration) is assigned to the second output channel:

1

2

3

4

Input Ch1

Input Ch 2 Integration

Output Ch1

Output Ch 2

Displacement vibration REL

Velocity vibration

Phasecorrection

Absolute

vibration B

channel

Absolute

vibration A

channel

SEIS


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z If REL (relative shaft vibration) is assigned to the first output channel and ABS (absolute shaftvibration) is assigned to the second output channel:

z If SEIS (seismic vibration) is assigned to the first output channel and ABS (absolute shaftvibration) is assigned to the second output channel:

Information

Channel Name Enter the channel name as necessary. The entered name will

be displayed in the bar graph window of MCL View. Amaximum of 60 characters can be entered.

* If over 20 single-byte characters are entered, or if the number

of double-byte characters or a total number of single-byte anddouble-byte characters exceeds 15 characters, the entered

characters may not be displayed in MCL View.

Tag Name Enter the tag name as necessary. The entered name will be

displayed in the bar graph window of MCL View. A

maximum of 60 characters can be entered.

* If over 20 single-byte characters are entered, or if the numberof double-byte characters or a total number of single-byte and

double-byte characters exceeds 15 characters, the entered

characters may not be displayed in MCL View.

Monitor

Monitor Type The monitor type representing the monitoring target isdisplayed.

Channel Type The channel type is displayed.

Measure Mode

(Absolute vibration A channel only)

Select the combination of signals to be measured.

Absolute vibration A channel (channel 1):

x 1st:REL(Ch1), 2nd:ABS(Ch2)

x 1st:REL(Ch1), 2nd:SEIS(Ch2)

x 1st:SEIS(Ch2), 2nd:ABS(Ch2)

Absolute vibration A channel (channel 3):

x

1st:REL(Ch3), 2nd:ABS(Ch4)x 1st:REL(Ch3), 2nd:SEIS(Ch4)

x 1st:SEIS(Ch4), 2nd:ABS(Ch4)

Input Ch1


Output Ch1

Output Ch 2

Displacement vibration

Velocity vibration

Phase

correction

Differential

calculation

Absolute

vibration A

channel

Absolute

vibration B

channel

SEIS

ABS

Input Ch1


Output Ch1

Output Ch 2


Velocity vibration

Phase

correction

Differential

calculation

Absolute

vibration B

channel

Absolute

vibration A

channel REL

ABS


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Input

Input Signal Select the input transducer.

Absolute vibration A (displacement vibration input) channel

x VK-202A

x FK-202F for Vibration

Absolute vibration B (velocity vibration input) channel

x CV-86

x CV-88

Intrinsically Safe Select the explosion-proof specification for the connectedinput transducer.

x No: Non-intrinsically safe

x Yes: Intrinsically safe

Standard Sensitivity Txhe standard sensitivity of the input transducer is displayed.

If you have selected [Other Sensor] for input transducer, enter

the standard sensitivity of your choice.

Setting value: From -100.0 to +100.0 (except 0)

Actual Sensitivity Enter the actual sensitivity of the input transducer.

Setting value: From -100.0 to +100.0 (except 0)

* If the actual sensitivity of the input transducer is known,loop adjustment can be enabled by changing the [Actual

Sensitivity] value. However, be sure to calibrate with thestandard sensitivity before changing the [Actual Sensitivity]

value.

Measure

Measure Unit Select the unit for the measurement target.

um, mils, 1/100mm, cmm

Expression Style of Measure Select the number of digits following the decimal point to

display.

x 0.000 : Display three digits following the decimal point.

x 0.00 : Display two digits following the decimal point.

x 0.0 : Display one digit following the decimal point.

x 0 : Display an integer.

Monitor Range Monitor Range

Enter the full scale for the monitor range.

Suppression Enter the threshold value for the suppression function.

If this function is used, there may be no output if the input

signal level is small.

(Point Suppression Function)

Setting value: From 0.0% to 5.0%

Function

Timed-OK Channel Defeat Select whether to enable or disable the Timed-OK Channeldefeat function.

x Off: Disabled

x On: Enabled


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Burn-out Select the output method for the measurement value andrecorder output, which will be applied to restrict output while

Timed-OK Channel defeat is enabled or while starting up the

unit, or while bypass is enabled.

x Down Scale (0%): Output the value equivalent to 0% of the

monitor range.

x Down Scale (0V/0 mA): Output 0 V or 0 mA.

First Out Select whether to enable or disable the first-out function.

If you enable this function, it is possible to specify the channelon which alarms are output the earliest from those channels

that the first out functionality is active.

x Off: Disabled

x On: Enabled

High-cut Filter Frequency Select the cutoff frequency of the low-pass filter (high-cut

filter).

There are restrictions on the combination of low-pass filter andhigh-pass filter (described below) that can be used. Make sure

that the setting conforms to the conditions specified in the table

below.

(Point Restrictions on Filter Combinations)

Low-cut Filter Select Select how to apply the high-pass filter (low-cut filter).

x Selectable: Switch the filter by input from an external

contact.

x LCF: Fixed to the 4-pole HPF (LCF)

x LCF: Fixed to the 10-pole HPF (LCF)

If you select [Selectable], you need to short between FILT1 and

FILT2 terminals on the instrument rack to enable the 10-pole

high-pass filter.

If this is done, the 4-pole high-pass filter will be disabled.

Low-cut Filter * In case of P-P, "2pole" is used

instead

Select the cutoff frequency for the 4-pole or 2-pole high-pass(low-cut) filter.

This filter features a -24 dB/oct. cutoff. In general, ample

damping effect can be anticipated with this filter.

Low-cut Filter Select the cutoff frequency of the 10-pole high-pass (low-cut)filter.

This filter features an approximately -60 dB/oct cutoff, and is

suitable if the cutoff frequency and the noise frequency areclose.

Phase Marker

Phase Marker Source

(Absolute vibration A channel only)

Select the phase marker to be used for analytic arithmetic.

x None: No phase marker is used (simulated rotation speed

enabled)

x Ch1 of Phase Marker Module





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Output

Recorder Output Range Select the recorder output range. If you change the outputrange, you may need to change the internal switch setting. For

details about how to set the internal switch, see 4.2.1Recorder Output Selection Switch P.22.

x 4 to 20 mA

x 1 to 5 V

x 0 to 5 V

x 0 to 10 V

2nd Monitor Output

(Absolute vibration B channel only)

Select the signal to be assigned to the monitor output connector

for the absolute vibration B channel.

x BUFF : Output velocity vibration.

x SEIS : Output seismic vibration.

x ABS : Output absolute shaft vibration.

Point Suppression Function

This function prevents the zero point of the monitor from floating, which is caused by the piping vibration or

noise when the machine is not running.Any value within the monitor range, namely, 0.0% to 5.0% (in 0.1%

steps), can be set.

With the suppression function for the absolute vibration monitor, any input signals below the specified value are

converted to the 0% output signals. Input signals that are above the specified value but below 5.0% are converted

to a value lower than the true value and then output.

Example) Suppression Setting of 2.0% and 5.0%

0% 100(%)

INPUT

100(%)OUTPUT&

DISPLAY

0%5%

*1 Suppression settingvalue

0% 100(%)

INPUT

100(%)OUTPUT&

DISPLAY

0%5%

2.0% (*1) 5.0% (*1)


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4.6.2 Analysis SettingsSet the basic functions related to analysis.



3 From [Group List] on the left of the screen, select [Analysis1]. (Under development)


Analysis

Target Machine The measurement mode appropriate to the machine to be

monitored is displayed.

Critical: For a large-sized rotating machine (sleeve bearing)

Sampling Interval : Trend The sampling interval for the trend data is displayed.

Sampling Interval : Waveform The sampling interval for the waveform data is displayed.

Gear Ratio Enter the gear ratio if the phase marker and the measurement

channel are installed on different shafts.

Setting value: From 0.001 to 10.000

(Point Setting the Gear Ratio)

Simurate RPM Enter the simulated rotation speed.

Setting value: 0 (not used), from 1 to 60000 rpm

* This function is enabled only when [None] is selected for

[Phase Marker Source] (basic setting).

Sampling Count Select the sampling count per cycle for synchronous sampling.

Setting value: 32, 64, 128

1

2

3

4


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Sampling Frequency Select the sampling frequency for asynchronous sampling.

Setting value: 2, 5, 10, 20, 50 kHz

Waveform Length The length (number of lines) of the waveform data is displayed.

Setting value: Fixed to 800 lines

Low-cut Filter Frequency Select the frequency for the high-pass filter (low-cut filter).

Setting value: None (not used), 5Hz, 10Hz

PM Setting Angle Enter the mounting angle for the phase marker. Measure themounting angle from the top side, proceeding in the direction

opposite to the rotation direction of the shaft.

Setting value: From 0 to 359 degrees

Setting Angle Enter the mounting angle for the measurement channel.Measure the mounting angle from the top side, proceeding in

the direction opposite to the rotation direction of the shaft.

Setting value: From 0 to 359 degrees

Smax Calculation Method Select how to calculate Sp-p max.x None: No calculation

x Method A (Calculate the square-root of the sum of squares

of the orthogonal pk-pk data)

x Method B (Pick the maximum value of the orthogonal pk-pk

data)

Smax Pair Channel Select the other channel for the calculation of Sp-p max.

Setting value: From Channel 1 to Channel 4

NX1 Set Value Enter the value for the first NX.

Setting value: From 0.01 to 0.99, 0 (not used), from 3.00 to

10.00* NX is either the order of a synchronous component (example:2X, 3X, etc.) that is an integral multiple of therotation-synchronized frequency component (1X), or the order

of a synchronous component less than 1X (example: 0.1X,

0.2X, etc.).

NX2 Set Value Enter the value for the second NX.

Setting value: From 0.01 to 0.99, 0 (not used), from 3.00 to10.00

NX3 Set Value Enter the value for the third NX.

Setting value: From 0.01 to 0.99, 0 (not used), from 3.00 to

10.00

NX4 Set Value Enter the value for the fourth NX.

Setting value: From 0.01 to 0.99, 0 (not used), from 3.00 to10.00

FX1 Set Value Enter the value for the first FX.

Setting value: 0 (not used), from 0.01 to 20000.00 Hz

* FX represents the frequency of a specified frequencycomponent.

FX2 Set Value Enter the value for the second FX.

Setting value: 0 (not used), from 0.01 to 20000.00 Hz


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Point Setting the Gear Ratio

In case where the phase marker cannot be mounted on the rotation shaft on which the sensor is installed, you can

use the gear ratio to obtain the rotation speed of the phase marker via the gear.Enter the value obtained from the following formula, where the gear on the rotation shaft of the phase marker is

the primary gear and the gear on the rotation shaft of the sensor is the secondary gear.

gearsecondarytheofteethofNumber

gearprimarytheofteethofNumberratioGear =

There is a following restriction on using the gear ratio

The trend data is calculated using asynchronous sampling waveform data.

Phase marker Primary

Secondary


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Alarm Set Value

H-DANGER Enter the DANGER Alarm setting for the high side.

* Deselecting this checkbox disables the DANGER Alarmdetection function for the high side.

H-ALERT Enter the ALERT Alarm setting for the high side.

* Deselecting this checkbox disables the ALERT Alarmdetection function for the high side.

Alarm Delay

DANGER Enter the output delay time for DANGER Alarm.

Setting value: From 0.0 to 99.0 seconds

ALERT Enter the output delay time for ALERT Alarm.

Setting value: From 0.0 to 99.0 seconds

Alarm Reset

OK Select the OK alarm reset method.

x Auto Reset: Automatic reset method

x Self Hold: Self-hold method

DANGER Select the DANGER Alarm reset method.



ALERT Select the ALERT Alarm reset method.



Sequence

DANGER Enter the sequence setup magnification number for DANGERAlarm.

Setting value: 0 (not used), by 1.0 to 10.0 times

To enable the sequence function, you need to short between

SEQ1 and SEQ2 terminals on the instrument rack.

ALERT Enter the sequence setup magnification number for ALERTAlarm.

Setting value: 0 (not used), by 1.0 to 10.0 times

The value set for DANGER Alarm and ALERT Alarm should not exceed 110% of the monitor range.

Setting a value in excess of 110% can prevent the alarm from being identified.

If the output delay time set for DANGER Alarm and ALERT Alarm is short, chattering may occur in

the alarm output. If the input signal is unstable, set an appropriate delay time that is long enough.

To expand the alarm setting using the sequence function, set it to 110%or less of the monitor

range.

Setting a value in excess of 110% can prevent the alarm from being identified.

Caution


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4.7 Relay SettingsThis section describes how to set the relay.

4.7.1 Operation SettingsSpecify the settings related to the relay operation.


2 On the right of the window, select the [Relay] button to display the relevant settings.


Relay

Relay Mode Select the energization method for the relay.

x Normally De-Energized

x Normally Energized

(Point ALARM RELAY MODE)

Relay Delay Set the output delay time for the relay.

(This setting is applicable only when [Relay] is selected for

[Alarm / Relay Control Select])

Setting value: From 0.0 to 99.0 (in 0.1 steps)

Relay Reset Select the reset method for the relay.

(This setting is applicable only when [Relay] is selected for

[Alarm / Relay Control Select])x Auto Reset

x Self Hold

Relay Logic The relay logic is displayed.

1

23


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Point Alarm Relay Mode

Each alarm relay contact can be set to either normally energized or normally de-energized.

Monitor Power ONMonitor Power

OFF Normal State Alarm state

NO contact, normally de-energized OPEN OPEN CLOSE

NO contact, normally energized OPEN CLOSE OPEN

NC contact, normally de-energized CLOSE CLOSE OPEN

NC contact, normally energized CLOSE OPEN CLOSE


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4.7.2 Configur ing a Standard Relay Logic (Relay Logic1)Specify the settings related to the relay operation.


2 On the right of the window, select the [Relay] button to display the relevant settings.

3 Double-click the [Relay Logic] from the [Relay], to bring up the [Relay Logic Edit Dialog] window.

2

3

1


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4 Set or check the following items.

Relay Logic1

LogicCode Set the relay output conditions.

Operand1 Set the channel and signal to be assigned to operand 1.



5 Click [Close] to close the window.

Point Alarm Logic

Each alarm logic is described in the table below.

Alarm Logic

LogicCode Description

None Disables the contact output.

Direct Outputs the alarm signal of the channel specified for [Operand1].

This logic can only be set for [Operand1].

AND Outputs the AND logic signals set for [Operand1], [Operand2] and [Operand3].

OR Outputs the OR logic signal specified for [Operand1], [Operand2] or [Operand3].

RACK COM-OK Outputs a signal indicating abnormal communication within the rack (including the

removal of modules).

5

4


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Point Alarm Signals

Details of each alarm signal are shown in the table below.

Operand Description

None Disabled

Not-OK OK alarm signal

Alert ALERT Alarm signal (including the gap alarm)

Danger DANGER Alarm signal

4.7.3 Configur ing a Multistage Relay Logic (Relay Logic2)You can combine several alarms within the same rack and output the contacts.

This section describes how to output contacts using the logic described below.

Alarm A Alarm B Alarm C Description of the Logic

S3C1-Alert S3C3-Alert S3C2-Danger ! ( ( S3C1-Alert + S3C3-Alert ) * S3C2-Danger )

Alarm C

Alarm B

Alarm A


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1 From [Device Tree] on the left of the window, select the [Abs.Vibration] node.

2 On the upper right of the window, select the [Relay] button to display the relevant settings.

3 Double-click the [Relay Logic] from the [Relay], to bring up the [Relay Logic Edit Dialog] window.

1

2

3


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4 Select the alarm contact to be set.Click [RelayLogic2].

5 Select the [Enable Relay Logic2] checkbox.

If you select this checkbox, the [RelayLogic1] tab setting is disabled.

6 Click [(].

Example: (

7 From the pull-down menu, select alarm A (S3C1-Alert).

5

7

6

4


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8 Click [Set].

Example: ( S3C1-Alert

If the field is blank or if calculation cannot be performed, the output of the contacts is disabled.

9 Click [OR(+)].

Example: ( S3C1-Alert +

10 From the pull-down menu, select alarm B (S3C3-Alert).

11 Click [Set].

Example: ( S3C1-Alert + S3C3-Alert

12 Click [)].

Example: ( S3C1-Alert + S3C3-Alert )

13 Click [] to move the cursor to the beginning of the line.

14 Click [(].

Example: ( ( S3C1-Alert + S3C3-Alert )

15 Click [] to move the cursor to the end of the line.

16 Click [AND(*)].

Example: ( ( S3C1-Alert + S3C3-Alert ) *

14

8, 11

12

13

15

16

9

10


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17 From the pull-down menu, select alarm C (S3C2-Danger).

18 Click [Set].

Example: ( ( S3C1-Alert + S3C3-Alert ) *S3C2-Danger

19 Click [)].

Example: ( ( S3C1-Alert + S3C3-Alert ) *S3C2-Danger )

20 Click [] to move the cursor to the beginning of the line.

21 Click [!].

Example: ! ( ( S3C1-Alert + S3C3-Alert ) * S3C2-Danger )22 Click [OK] to close the window.

18

19

20

21

2217


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Setting a Redundant Relay

1 Select the alarm contact to be set.

Click the [RelayLogic2] tab.

2 Select the [Enable Relay Logic2] checkbox.

If you select this checkbox, the [RelayLogic1] tab setting is disabled.

3 From the pull-down menu, select a relay.

The relay logic corresponding to the selected relay is output.4 Click [OK] to close the window.

12

3

4


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VM-702B Chapter 5 Adjustment of the Module

48

Chapter 5 Adjustment of the Module

This chapter describes how to adjust the VM-702B absolute vibration monitor module.

5.1 Connecting the Equipment (Connecting the Input Terminals)Refer to the following figure and connect each piece of equipment.

Recommended Equipment

DC voltage generator: 7651 (YOKOGAWA)

Function generator: FG120 (YOKOGAWA)

If you are adjusting the gap (bias) voltage, connect only the DC voltage generator.


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If you are adjusting the measurement values, connect both the DC voltage generator and thefunction generator.

Function Generator or DC Voltage Generator Connected Terminals

Channel A Channel B Channel C Channel D

Terminal

No.

DescriptionTerminal

No.

DescriptionTerminal

No.

DescriptionTerminal

No.

Description

A1 IN1 A6 IN2 A11 IN3 B1 IN4

A2 COM1 A7 COM2 A12 COM3 B2 COM4


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5.2 Connecting the Equipment (Connecting the Output Terminals)Refer to the following figure and connect each piece of equipment.

A common method is used to connect the equipment, regardless of the monitor type.

Recommended Equipment

Digital multimeter: 34401A (Agilent technology)

Digital Multimeter Connected Terminals

Channel A Channel B Channel C Channel D

Terminal

No.Description

Terminal

No.Description

Terminal

No.Description

Terminal

No.Description

A1 REC1 A3 REC2 A5 REC3 B1 REC4

A2 COM1 A4 COM2 A6 COM3 B2 COM4


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Warning

5.3 Adjusting the Gap (Bias) Voltage Measurement ValueThis section describes how to adjust the gap (bias) voltage measurement value of channels.

This adjustment should only be carried out if a significant error in gap (bias) voltage arises.

If this adjustment is carried out, alarm contacts may be output.

Perform adjustment on all channels to which transducers are connected, according to the steps described below.

1 From [Device Tree] on the left of the main window, select the [Abs. Vibration] node.


3 Click the [Open] button for [Adjustment (Gap)] to bring up the Adjustment (Gap) window.

1

2

3


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4 Output -20 V from the DC voltage generator.

Wait for approximately five seconds (settling time) and then click the [Set] button for the 0% side of the

gap voltage.

5 Output +20 V from the DC voltage generator.Wait for approximately five seconds (settling time) and then click the [Set] button for the 100% side of

the gap voltage.


5.4 Adjusting the Measurement ValuesThis section describes how to adjust the measurement values for the absolute vibration monitor.

The adjustment procedure differs depending on the combination of measurement values used in the absolute

vibration monitor.

Select the adjustment procedure from the combination of signals selected in [Measure Mode].

Measure Mode Absolute Vibration A Channel Absolute Vibration B Channel

1st: REL(Ch1/3),

2nd: ABS(Ch2/4)

5.4.1 Absolute Vibration Monitor (REL:

Relative Shaft Vibration)

5.4.3 Absolute Vibration Monitor (ABS:

Absolute Shaft Vibration)

1st: REL(Ch1/3),2nd: SEIS(Ch2/4)

5.4.1 Absolute Vibration Monitor (REL:Relative Shaft Vibration)

5.4.2 Absolute Vibration Monitor (SEIS:Seismic Vibration)

1st: SEIS(Ch2/4),2nd: ABS(Ch2/4)


5.4.3 Absolute Vibration Monitor (ABS:Absolute Shaft Vibration)

4

56


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Warning

5.4.1 Absolute Vibration Monitor (REL: Relative Shaft Vibration)This section describes how to adjust the measurement values when REL (relative shaft vibration) is assigned to the

output channel of the absolute vibration monitor.


1 From [Device Tree] on the left of the main window, select the appropriate module.


3 Click the [Open] button for [Adjustment (Measure / Recorder)] of the absolute vibration A

(displacement vibration input) channel to bring up the Adjustment (Measure / Recorder) window.

Output Ch1

Output Ch 2

Output Ch1

Output Ch 2


Velocity vibration

Absolute

vibration A

channel

Absolute

vibration B

channel

1

2

3


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4 The transducer to be connected to the absolute vibration A (displacement vibration input) channel is

either the VK or FK series. Output the offset voltage of -6 V to -12 V from the DC voltage generator.

5 From the function generator for the absolute vibration A (displacement vibration input) channel,

output AC voltage equivalent to 20% of the full scale.

Wait for approximately five seconds (settling time) and then click the [Set] button for the 20% side of

[Measure].

List of Inputs for the Displacement Vibration Monitor

Input (Input Value) (m Vrms)

Non-intrinsically Safe Intrinsically SafeMonitorRange

Input Signal

20% 100% 20% 100%

100 mp-p VK-202A, FK-202F 55.6 278.2 55.1 275.5

125 mp-p VK-202A, FK-202F 69.6 347.8 68.9 344.3

200 mp-p VK-202A, FK-202F 111.3 556.5 110.2 550.9

400 mp-p VK-202A, FK-202F 223 1113 220 1102

500 mp-p VK-202A, FK-202F 278 1391 275 1377

3 mils p-p VK-202A, FK-202F 42.4 212.0 42.0 209.9

5 mils p-p VK-202A, FK-202F 70.7 353.4 70.0 349.8

10 mils p-p VK-202A, FK-202F 141.3 706.7 139.9 699.7

15 mils p-p VK-202A, FK-202F 212 1060 210 1050

5

6

7

The following calculation is applied for other ranges and input signals:

Non-intrinsically safe: Range x Input signal sensitivity/22 = mVrms

Example: 100 m x 7.87 mV/m/22 = 278.2 mVrms Intrinsically safe: Range x Input signal sensitivity/22 x 0.99 = mVrms

Example: 100 m x 7.87 mV/m/22 x 0.99 = 275.4 mVrmsFor explosion-proof specification, multiply the input by 0.99.


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Warning


output AC voltage equivalent to 100% of the full scale.


[Measure].


5.4.2 Absolute Vibration Monitor (SEIS: Seismic Vibration)This section describes how to adjust the measurement values when SEIS (seismic vibration) is assigned to the



z If either output channel 2 or output channel 4 is seismic vibration:



3 Click the [Open] button for [Adjustment (Measure / Recorder)] of the absolute vibration B (velocity

vibration input) channel to bring up the Adjustment (Measure / Recorder) window.

Input Ch1


Output Ch1

Output Ch 2


SEISVelocity vibration

Phase

correction

Absolute

vibration A

channel

Absolute

vibration B

channel


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4 The transducer to be connected to the absolute vibration B (velocity vibration input) channel is either

the CV-86 or CV-88. Output the offset voltage of +6 V to +12 V from the DC voltage generator.

5 From the function generator for the absolute vibration B (velocity vibration input) channel, output

AC voltage equivalent to 20% of the full scale.


[Measure].

List of Inputs for the Velocity Vibration Monitor

Input (Input Value) (m Vrms)

Non-Intrinsically SafeIntrinsically Safe

(only CV-86)

MonitorRange

Input Signal

20% 100% 20% 100%

10mm/s pk CV-86, CV-88 5.57 27.86 5.52 27.58

20mm/s pk CV-86, CV-88 11.14 55.72 11.03 55.16

50mm/s pk CV-86, CV-88 27.9 139.3 27.6 137.9100 m p-p CV-86, CV-88 17.5 87.52 17.33 86.65

200 m p-p CV-86, CV-88 35.0 175.0 34.7 173.3

500 m p-p CV-86, CV-88 87.5 437.6 86.6 433.2

10mm/s rms CV-86, CV-88 7.88 39.40 78.0 39.01

20mm/s rms CV-86, CV-88 15.76 78.80 15.60 78.01

50mm/s rms CV-86, CV-88 39.4 197.0 39.0 195.0

100 m rms CV-86, CV-88 24.8 123.8 24.51 122.54

200 m rms CV-86, CV-88 49.5 247.6 49.0 245.1

500 m rms CV-86, CV-88 123.8 618.9 122.5 612.7

5

6

7


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[Measure].







Input Ch1


Output Ch1

Output Ch 2


Velocity vibration

Phase correction

SEIS

Absolute

vibration A

channel

Absolute

vibration B

channel

Note: The displacement range shown above is the input value when the calibration frequency is 100

Hz. The input value must be recalculated if a different calibration frequency is used.The following calculation is applied for other ranges and input signals (the range is converted to

mm):

Displacement range: 2 x x Calibration frequency x (Range/2) x Input signal sensitivity/2 =

mVrmsExample: 2 x x 100 Hz x (200 m/2) x 3.94 mV/2 = 175.0 mVrms Velocity range: Range x Input signal sensitivity/2 = mVrms

Example: 20 mm/s x 3.94 mV/2 = 55.72 mVrmsMultiply the input by 0.99 when the explosion proof specification is used.

In addition, when the rms rectification is used, multiply the range by 2 and then calculate the inputvalue and gain.


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Warning






[Measure].

(See "List of Inputs for the Displacement Vibration Monitor P.54".)

6 From the function generator for the absolute vibration B (velocity vibration input) channel, outputAC voltage equivalent to 100% of the full scale.


[Measure].


5.4.3 Absolute Vibration Monitor (ABS: Absolute Shaft Vibration)This section describes how to adjust the measurement values when ABS (absolute shaft vibration) is assigned to

the output channel of the absolute vibration monitor.


5

6

7

Input Ch1

Input Ch 2 Integration Output Ch 2


Velocity vibration

Phasecorrection

Differential

calculation

ABS

Output Ch1Absolute

vibration A

channel

Absolute

vibration Bchannel


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5 Set the output of the function generator for the absolute vibration A (displacement vibration input)

channel to 0 Vrms.






[Measure].

(See "List of Inputs for the Displacement Vibration Monitor P.54".)




[Measure].


7

8

9


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Warning

5.5 Adjusting the Recorder Output

This section describes how to adjust the recorder output of the absolute vibration monitor.

The adjustment procedure differs depending on the combination of measurement values used in the absolute

vibration monitor.

Select the adjustment procedure from the combination of signals selected in [Measure Mode].

Measure Mode Absolute Vibration A Channel Absolute Vibration B Channel

1st: REL(Ch1/3),

2nd: ABS(Ch2/4)

5.5.1 Absolute Vibration Monitor (REL:

Relative Shaft Vibration)



1st: REL(Ch1/3),2nd: SEIS(Ch2/4)

5.5.1 Absolute Vibration Monitor (REL:Relative Shaft Vibration)


1st: SEIS(Ch2/4),

2nd: ABS(Ch2/4)

5.5.2 Absolute Vibration Monitor (SEIS:

Seismic Vibration)



5.5.1 Absolute Vibration Monitor (REL: Relative Shaft Vibration)This section describes how to adjust the recorder output when REL (relative shaft vibration) is assigned to the



1

2

3


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5 Set the output of the function generator for the absolute vibration A (displacement vibration input)

channel to 0 Vrms.

Adjust the [Offset] value for [Recorder Output] until the recorder output reads 0%.

(Click the [Set] button to reflect the changes to the recorder output.)


output AC voltage equivalent to 100% of the full scale. Adjust the [Gain] value for [Recorder Output]

until the recorder output reads 100%.

(Click the [Set] button to reflect the changes to the recorder output.) (See "List of Inputs for the

Displacement Vibration Monitor P.54".)


5

6

7

Input Ch1

Input Ch 2

Output Ch1

Output Ch 2


Velocity vibration

Absolute

vibration A

channel

Absolute

vibration B

channel


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5.5.2 Absolute Vibration Monitor (SEIS: Seismic Vibration)

This section describes how to adjust the recorder output when SEIS (seismic vibration) is assigned to the output

channel of the absolute vibration monitor.







Input Ch1


Output Ch1

Output Ch 2


SEISVelocity vibration

Phase

correction

Absolute

vibration A

channel

Absolute

vibration B

channel


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5 Set the output of the function generator for the absolute vibration B (velocity vibration input) channel

to 0 Vrms.

Adjust the [Offset] value for [Recorder Output] until the recorder output reads 0%.

(Click the [Set] button to reflect the changes to the recorder output.)

6 From the function generator for the absolute vibration B (velocity vibration input) channel, output an

AC voltage equivalent to 100% of the full scale. Adjust the [Gain] value for [Recorder Output] until

the recorder output reads 100%.

(Click the [Set] button to reflect the changes to the recorder output.) (See "List of Inputs for the

Displacement Vibration MonitorP.54".)



5, 12

6, 13

7, 14

Input Ch1

Input Ch

vm-702b shinkawa

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