3500 44 Aeroderivative Monitor 129774-01 Rev D

8/13/2019 3500 44 Aeroderivative Monitor 129774-01 Rev D

1/87

Part number 129774-01Revision D, April 1998

3500/44

AERODERIVATIVE GTVIBRATION MONITOR

MODULE

OPERATION AND MAINTENANCEMANUAL

02298101

Return To Previous Menu


2/87

ii

1996, 1998 Bently Nevada CorporationAll Rights Reserved.

No part of this publication may be reproduced, transmitted, stored in a retrieval system or translated into anyhuman or computer language, in any form or by any means, electronic, mechanical, magnetic, optical,chemical, manual, or otherwise, without the prior written permission of the copyright owner,

Bently Nevada Corporation

1617 Water Street

Minden, Nevada 89423 USA

Telephone (800) 227-5514 or (702) 782-3611

TELEX/MILTILINK (Easylink) 7608262 (BENEVCORP MDEN)

Telemail 7400983 BNC UC

Fax (702) 782-9253

Copyright infringement is a serious matter under the United States of America and foreign copyright laws.

Keyphasor and Proximitor are registered trademarks of Bently Nevada Corporation.


3/87

iii

Additional Information

3500 Monitoring System Rack Installation and Maintenance Manual (129766-01)

general description of a standard system

general description of a Triple Modular redundant (TMR) system

instructions for installing and removing the module from a 3500 rack

drawings for all cables used in the 3500 Monitoring System

3500 Monitoring System Rack Configuration and Utilities Guide ( 129777-01)

guidelines for using the 3500 Rack Configuration software for setting the operatingparameters of the module

guidelines for using the 3500 test utilities to verify that the input and output terminals onthe module are operating properly

3500 Monitoring system Computer Hardware and Software Manual (128158-01)

instructions for connecting the rack to 3500 host computer

procedures for verifying communication

procedures for installing software

guidelines for using Data Acquisition / DDE Server and Operator Display Software

procedures and diagrams for setting up network and remote communications

3500 Field Wiring Diagram Package (130432-01)

diagrams that show how to hook up a particular transducer

lists of recommended wiring

Notice:This manual does not contain all the information required to operate and

maintain the Aeroderivative GT Vibration Monitor. Refer to the Followingmanuals for other required information.


4/87

iv

Contents

1. Receiving and Handling Instructions 1

1.1 Receiving Inspection 11.2 Handling and Storing Considerations 1

2. General Information 22.1 Triple Modular Redundant (TMR) Description 32.2 Available Data 4

2.2.1 Statuses 42.2.2 Proportional Values 7

2.3 LED Descriptions 8

3. Configuration Information 93.1 Monitor Options 93.2 Channel Options 12

3.2.1 Aeroderivative Channel Configuration Considerations 123.2.2 Aeroderivative Channel Configuration Options 13

3.3 Available Setpoints 193.4 Software Switches 21

4. I/O Module Descriptions 244.1 Aeroderivative GT Vibration I/O Module (Internal Termination) 24

4.1.1 Wiring Euro Style Connectors 264.2 External Termination I/O Modules 27

4.2.1 Aeroderivative GT Vibration I/O Module (External Termination) 27

4.2.2 Aeroderivative GT TMR Vibration I/O Module (External Termination)284.2.3 External Termination Blocks 294.2.4 Cable Pin Outs 35

5. Maintenance 375.1 Verifying a 3500 Rack - Aeroderivative GT Vibration Monitor 37

5.1.1 Choosing a Maintenance Interval 375.1.2 Required Test Equipment 385.1.3 Typical Verification Test Setup 385.1.4 Using the Rack Configuration Software 395.1.5 Aeroderivative Channels 415.1.6 Verify Recorder Outputs 53

5.1.7 If a Channel Fails a Verification Test 545.2 Adjusting the Scale Factor 54

6. Troubleshooting 566.1 Self-test 566.2 LED Fault Conditions 576.3 System Event List Messages 586.4 Alarm Event List Messages 73


5/87


6/87

vi


7/87


8/87

General Information 3500/44 Operation and Maintenance

2

2. General InformationThe 3500/44 Aeroderivative GT Vibration Monitor is a four channel monitordesigned for Aeroderivative Gas Turbine applications. It accepts input from fourVelocity Transducers (via Bently Nevada interface modules 86517 and 86497)

and uses these inputs to drive alarms. The monitor can be programmed, usingthe 3500 Rack Configuration Software, to execute any of the following filteroptions.

Integration To display Velocity inputs in displacement unitsTracking For 1X VibrationBand-pass For Band-pass Vibration

Front View Rear View

I/O Module,ExternalTermination,refer to Section4.2.

Buffered

Transducer

Outputs

Provides anunfiltered outputfor each of thefour transducers.

All are short circuitprotected.

I/O Module,InternalTermination, referto Section 4.1.

Status LEDs,

refer to SectionError!

Reference

source not

found..

TMRI/O Module,ExternalTermination,refer toSection 4.2.


9/87

3500/44 Operation and Maintenance General Information

3

The 3500/44 accepts input from two separate Keyphasor7signals allowing eachchannel pair to execute a different tracking filter.

The 3500/44 is designed to meet the recommended requirements of thefollowing Aeroderivative Gas Turbine Manufacturers:

Rolls Royce RB211

General Electric LM1600, LM2500, LM5000, LM6000Turbo Power and Marine

Allison 501

The primary purpose of the 3500/44 monitor is to provide 1) machineryprotection by continuously comparing current machine vibration againstconfigured alarm setpoints to drive alarms and 2) essential machine vibrationinformation to both operator and maintenance personnel. Alarm setpoints areconfigured using the 3500 Rack Configuration Software. Alarm setpoints canbe configured for each active proportional value and danger setpoints can beconfigured for two of the active proportional values.

When shipped from the factory, the 3500/44 is delivered unconfigured. Whenneeded, the 3500/44 can be installed into a 3500 rack and configured toperform the required monitoring function. This lets you stock a single monitorfor use as a spare for many different applications.

2.1 Triple Modular Redundant (TMR) DescriptionWhen used in a TMR configuration, 3500/44 monitors and Aeroderivative GTVibration TMR I/O Modules must be installed adjacent to each other in groups ofthree. When used in this configuration, two types of voting are employed toensure accurate operation and to avoid single point failures.

The first level of voting occurs on the TMR Relay Module. With this voting, theselected alarm outputs for the three monitors are compared in a 2 out of 3method. Two monitors must agree before the relay is driven. Refer to the3500/32 & 34 Relay Module Operation and Maintenance Manual for moreinformation on this voting.

The second type of voting is referred to as "Comparison" voting. With this typeof voting, the proportional value outputs of each monitor in the group arecompared with each other. If the output of one monitor differs from the outputof the other monitors in the group by a specified amount, that monitor will addan entry to the System Event list. Configure comparison voting by settingComparison and % Comparison in the Rack Configuration Software.

Comparison

The enabled proportional value of the TMR monitor group that is used todetermine how far apart the values of the three monitors can be to each otherbefore an entry is added to the System Event List.


10/87


4

% Comparison

The highest allowed percent difference between the middle value of the threemonitors in a TMR group and the individual values of each monitor.

For TMR applications, two types of input configurations are available: bussed ordiscrete. Bussed configuration uses the signal from a single nonredundant

transducer and provides that signal to all three monitors in the TMR groupthrough a single 3500 Bussed External Termination Block.

Discrete configuration requires three redundant transducers at eachmeasurement location on the machine. The input from each transducer isconnected to separate 3500 External Termination Blocks.

2.2 Available DataThe Aeroderivative GT Vibration Monitor returns specific proportional values.This monitor also returns both monitor and channel statuses.

2.2.1 Statuses

The following statuses are provided by the monitor. This section describes theavailable statuses and where they can be found.

Monitor Status

OK

This indicates if the monitor is functioning correctly. A not OK status isreturned under any of the following conditions:

Module Hardware Failure

Node Voltage Failure Configuration Failure

Transducer Failure

Slot ID Failure

Keyphasor Failure (if Keyphasor signals are assigned to channel pairs)

Channel not OK

If the Monitor OK status goes not OK, then the system OK Relay on theRack Interface I/O Module will be driven not OK.

Alert/Alarm 1

This indicates whether the monitor has entered Alert/Alarm 1. A monitor willenter the Alert/Alarm 1 state when any proportional value provided by themonitor exceeds its configured Alert/Alarm 1 setpoint.


11/87


5

Danger/Alarm 2

This indicates whether the monitor has entered Danger/Alarm 2. A monitorwill enter the Danger/Alarm 2 state when any proportional value provided bythe monitor exceeds its configured Danger/Alarm 2 setpoint.

Bypass

This indicates when the monitor has bypassed alarming for one or moreproportional values of a channel. When a channel bypass status is set, thismonitor bypass status will also be set.

Configuration Fault

This indicates if the monitor configuration is valid.

Special Alarm InhibitThis function inhibits all alarms for the associated channel. The MonitorSpecial Alarm Inhibit does not reset latched alarms. The latched alarms willbe driven after the inhibit function is deactivated. The inhibit functionprevents the OK status of the Keyphasor channel from voting into thechannel OK status. When this inhibit function is activated from the externalcontacts on the I/O module, all active channels of the associated monitorare affected.

The Monitor Special Alarm Inhibit function is active when:

The Alarm Inhibit contact (INHB/RET) on the I/O module is closed(active).

Any of the Channel Special Alarm Inhibit software switches is enabled.

Channel Status

OK

This indicates that no fault has been detected by the associated monitorchannel.

There are three types of channel OK checking: Transducer Input Voltage,Transducer Supply Voltage, and Keyphasor OK. Keyphasor OK only affects

channel pairs that have Keyphasor signals assigned to them. A channel OKstatus will be deactivated if any of the three OK types goes not OK.

Alert/Alarm 1

This indicates whether the associated monitor channel has enteredAlert/Alarm 1. A channel will enter the Alert/Alarm 1 state when anyproportional value provided by the channel exceeds its configured

Alert/Alarm 1 setpoint.


12/87


6

Danger/Alarm 2

This indicates whether the associated monitor channel has enteredDanger/Alarm 2. A channel will enter the Danger/Alarm 2 state when anyproportional value provided by the channel exceeds its configured

Danger/Alarm 2 setpoint.

Bypass

This indicates that the channel has bypassed alarming for one or more of itsproportional values. A channel bypass status may result from the followingconditions:

A transducer is not OK, and the channel is configured for Timed OKChannel Defeat.

The Keyphasor associated with the channel has gone invalid causing all

proportional values related to the Keyphasor signal (for example 1XAmplitude, 1X Phase, Not 1X, ...) to be defeated and their associatedalarms bypassed.

The monitor has detected a serious internal fault.

A software switch is bypassing any channel alarming function.

The Special Alarm Inhibit is active and causing enabled alarms not to beprocessed.

Special Alarm Inhibit

This function inhibits all alarms for the associated channel. The ChannelSpecial Alarm Inhibit does not reset latched alarms. The latched alarms willbe driven after the inhibit function is deactivated. The inhibit functionprevents the OK status of the Keyphasor channel from voting into thechannel OK status. When this inhibit is activated from the external contactson the I/O module, all active channels of the associated monitor areaffected.

The Channel Special Alarm Inhibit function is active when:

The Alarm Inhibit contact (INHB/RET) on the I/O Module is closed(active).

A Channel Special Alarm Inhibit software switch is enabled.

Off

This indicates whether the channel has been turned off. The monitorchannels may be turned off (inactivated) using the Rack ConfigurationSoftware.


13/87


7

The following table shows where the statuses can be found.

Statuses Communication

Gateway

Module

Rack

Configuration

Software

Operator

Display

Software

Monitor OK X X

Monitor Alert/Alarm 1 X X

Monitor Danger/Alarm 2 X X

Monitor Bypass X

Monitor Configuration Fault X

Monitor Special Alarm Inhibit X

Channel OK X X XChannel Alert/Alarm 1 X X X

Channel Danger/Alarm 2 X X X

Channel Bypass X X X

Channel Special Alarm Inhibit X X X

Channel Off X X

2.2.2 Proportional ValuesProportional values are vibration measurements used to monitor the machine.The Aeroderivative GT Vibration Monitor can calculate three different types ofproportional values. You may select any two of these values to be returned.

Aeroderivative

Direct *

1X AmplitudeBand-pass

The primary value for the channel pair type. You can include this valuein contiguous registers in the Communication Gateway Module.


14/87


8

2.3 LED DescriptionsThe LEDs on the front panel of the Aeroderivative GT Vibration Monitor indicatethe operating status of the module as shown in the following figure. Refer to

Section Error! Reference source not found.for all of the available LED

conditions.

OK

Indicates that the AeroderivativeGT Vibration Monitor and the

Aeroderivative GT Vibration I/OModule are operating correctly

TX/RX

Flashes at the rate that messagesare received and transmitted.

BYPASSIndicates that some of the monitorfunctions are temporarilysuppressed.


15/87

3500/44 Operation and Maintenance Configuration Information

9

3. Configuration InformationThe 3500/44 Aeroderivative GT Vibration Monitor must have a validconfiguration to operate properly. This section lists the monitor options (Section3.1), channel options (Section 3.2), available setpoints (Section 3.3), and

software switches (Section 3.4) for the Aeroderivative GT Vibration Monitor.To configure the monitor, use this section to gather the information that youneed and then use the Rack Configuration Software to download theconfiguration to the monitor. The 3500 Monitoring System Rack Configurationand Utilities Guide (part number 129777-01) shows how to install and operatethe Rack Configuration Software.

3.1 Monitor OptionsThis section describes the options available on the Aeroderivative GT VibrationMonitor configuration screen.


16/87

Configuration Information 3500/44 Operation and Maintenance

10

Reference Information

These fields contain information that indicates which module you areconfiguring.

Slot

The location of the Aeroderivative GT Vibration Monitor in the 3500 rack (2through 15).

Rack Type

The type of Rack Interface Module installed in the rack (Standard or TMR).

Configuration ID

A unique six character identifier which is entered when a configuration isdownloaded to the 3500 rack.

Slot Input/Output Mode

The I/O field lets you identify the type of I/O Module that is attached to themonitor. (The option selected must agree with the I/O module installed.)

Discrete I/O

Used when each Aeroderivative GT Vibration Monitor and an Aeroderivative

GT Vibration Discrete I/O Module are installed for a standard ornonredundant application.

Discrete Internal I/O

The transducer field wiring is connected directly to the I/O module.

Discrete External I/O

The transducer field wiring is connected to an External TerminationBlock and then routed from the External Termination Block to the I/O

module through a 25-pin cable. The recorder field wiring is connected toan External Termination Block and then routed from the ExternalTermination Block to the I/O module through a 9-pin cable.

TMR I/O

Used when three identical adjacent Aeroderivative GT Vibration Monitorsand three Aeroderivative GT TMR Vibration I/O Modules are installed for aTMR application.


17/87


11

TMR I/O (Discrete)

This option is used when redundant transducers and field wiring arerequired. A set of twelve transducers are used to provide input signals tothree identical adjacent monitors. Each transducer is connected to an

External Termination Block and then the External Termination Block isconnected to the Aeroderivative GT TMR Vibration I/O Module using a 25-pin cable. The recorder field wiring is connected to an External TerminationBlock and then routed from the External Termination Block to the

Aeroderivative GT TMR Vibration I/O Module through a 9-pin cable.

TMR I/O (Bussed)

This option is used when redundant transducers and field wiring are notrequired. A single set of four transducers are sent to three identicaladjacent monitors. All four transducers are connected to a single Bussed

External Termination Block and then the Bussed External Termination Blockis connected to the Aeroderivative TMR Vibration I/O Modules using three25-pin cables. The recorder field wiring is connected to an ExternalTermination Block and then routed from the External Termination Block tothe Aeroderivative TMR Vibration I/O Module through a 9-pin cable.

Channel Pair 1 and 2

Channel Pair 3 and 4

The fields within these boxes pertain to both channels of the channel pair.

Channel Pair Type

The type of monitoring which is to be performed by the channel pair. Theonly Channel Pair type available in the Aeroderivative GT Vibration Monitoris Aeroderivative.

Keyphasor7Association

No Keyphasor

Can be used when a Keyphasor is not available. If this is marked thenthe only data that will be available is Direct.

Primary

The Keyphasor channel selected that is normally used for measurement.When this Keyphasor transducer is marked invalid, the backupKeyphasor transducer will provide the shaft reference information.


18/87


12

Backup

The Keyphasor channel selected that will be used if the primaryKeyphasor fails. If you do not have a backup Keyphasor, select thesame Keyphasor channel as the primary Keyphasor.

ActiveUsed to select whether the functions of the channel will be turned on () oroff ().

Options

A button to display the configuration options for the selected channel type.

3.2 Channel OptionsThis section discusses the Configuration Considerations and the RackConfiguration Software screens associated with the Aeroderivative Channel.

3.2.1 Aeroderivative Channel Configuration Considerations

Consider the following items before configuring an Aeroderivative Channel:

If a Keyphasor channel is selected, a Keyphasor Module must be installed inthe rack.

The full-scale options allowed for each proportional value is dependent uponthe transducer type.

Setpoints may only be set on proportional values which are enabled.

When a full-scale range is modified, readjust the setpoints associated withthis proportional value.

If either 1X Amplitude (Ampl) or Band-pass is enabled and the Integrate boxis checked, the Trip Multiply value must be set to 2.0 or less.

Only one or two proportional values (Direct, 1X Amplitude (Ampl), or Band-pass) can be enabled at the same time.

NoteFor TMR applications, set Channel Pair 1 and 2 as primary Keyphasor andChannel Pair 3 and 4 as backup Keyphasor.


19/87


13

The following combinations of proportional values may be enabled for anAeroderivative channel pair:

Channel Allowed Proportional Values

Direct 1X Amplitude Band-pass

AB

U

U

U

U

AB

U

U

U

U

AB

U

U

U

U

A and B are channels in an Aeroderivative channel pair.

3.2.2 Aeroderivative Channel Configuration Options

This section describes the options available on the Aeroderivative Channelconfiguration screen.


20/87


14

CP ModSelecting the CP Mod button in the Channel Options Dialog Box, allows aCustom channel configuration to be downloaded to the monitor. Customconfiguration data is stored in a Custom Products Modification File. CustomProducts Modification files follow the naming convention .These files must be located in the \3500\Rackcfg\Mods\ directory. When a CPMod file is selected, a window is displayed which describes the function of themodification. CP Mod files are available through Bently Nevada's CustomProducts Division. Contact your local Bently Nevada Sales Representative fordetails.

Reference Information

These fields contain information that indicates which channel you areconfiguring.

Channel

The number of the channel being configured (1 through 4).

Slot

The location of the monitor in the 3500 rack (2 through 15).

Rack Type

The type of Rack Interface Module installed in the rack (Standard or TMR).

Enable

An enabled proportional value specifies that the value will be provided by thechannel (enabled, disabled).

DirectData which represents the overall transducer signal.

1X AmplIn a complex vibration signal, notation for the amplitude component thatoccurs at the rotative speed frequency.

Band-passThe part of the overall transducer signal after it has gone through thespecified Band-pass filter.

IntegrateWhen selected the 1X Ampl and the Band-pass signal will be integrated.


21/87


15

The full-scale ranges in the following table are the same for all transducertypes.

Direct 1X Ampl

Band-pass

(Not Integrated)

1X Ampl

Band-pass

(Integrated)

0-2 in/s pk0-3 in/s pk0-4 in/s pk0-5 in/s pk0-6 in/s pk0-7 in/s pk0-50 mm/s pk0-75 mm/s pk0-100 mm/s pk0-125 mm/s pk0-150 mm/s pk0-175 mm/s pkCustom

0-2 in/s pk0-3 in/s pk0-4 in/s pk0-5 in/s pk0-6 in/s pk0-7 in/s pk0-50 mm/s pk0-75 mm/s pk0-100 mm/s pk0-125 mm/s pk0-150 mm/s pk0-175 mm/s pkCustom

0-5 mil pp0-10 mil pp0-15 mil pp0-125 :m pp

0-250 :m pp

0-375 :m pp

Custom

Clamp Value

The value that a proportional value goes to when that channel orproportional value is Bypassed or defeated (For example, when a problemoccurs with the transducer). The selected value can be between theminimum and maximum full-scale range values. Only the values availablefrom the Recorder Outputs, Communication Gateway and Display Moduleare clamped to the specified value when the proportional value is invalid.

Recorder Out

The proportional value that is sent to the 4 to 20 mA recorder. If the channelis Bypassed, the output will be clamped to the selected clamp value or to 2mA (if the 2 mA clamp is selected).

Corner Frequencies

The two options become available when Band-pass is enabled.

Low Pass 200 Hz, High Pass 75 Hz

Low Pass 200 Hz, High Pass 100 Hz


22/87


16

Trip Multiply

The value selected to temporarily increase the alarm (Alert and Danger) setpointvalues. This value is normally applied by manual (operator) action duringstartup to allow a machine to pass through high vibration speed ranges without

monitor alarm indications. Such high vibration speed ranges may includesystem resonances and other normal transient vibrations.

Transducer Selection

The following transducer types are available for the Aeroderivative Channel:

86497 Interface Module

86517 Interface Module

Nonstandard

1X tracking Filter

The normal operating speed specifies the typical operating speed of themachine and the bandwidth filter specifies the width of the 1X tracking filter.

Acceptable values are 3 Hz and 5 Hz. These options determine the filter Q forthe 1X Amplitude proportional value. The 1X channels provide the amplitude ofthe casing vibration at shaft rotative speed but without a phase angle. Thechannels provide this amplitude by using narrow bandpass filters thatautomatically adjust the center of frequency of the filters to match shaft rotativespeed. The filters are constant Q filters which means that they change thebandwidth in proportion to the center frequency of the filter. The bandwidth of

the filter, therefore, changes in proportion to rotor speed. For example, as therotor speed increases the bandwidth will get larger, and as speed decreases thebandwidth will get smaller.

The Q value of the filter is determined by the center frequency of the filter(which is equal to the normal operating speed divided by 60) and the desiredbandwidth as shown in this relationship:

Q is proportional to: (center frequency) / (bandwidth)


23/87


17

Customize buttonUsed to adjust the Scale Factor for transducer. If Nonstandard isselected as the transducer type, the OK Limits can also be adjusted.The Nonstandard transducer scale factor must be between 85 and 115mV/mil. There must be at least 2 volts between the Upper and LowerOK Limits.

SCALE FACTOR for Standard or TMR Discrete Configuration

Transducer With Barriers Without Barriers

86497 N/A 100 mV/(in/s)

86517 99.4 mV/(in/s) 100 mV/(in/s)

Note: "15% scale factor adjustment allowed.

SCALE FACTOR for TMR Bussed Configuration

Transducer With Barriers Without Barriers

86497 N/A 100 mV/(in/s)

86517 98.2 mV/(in/s) 100 mV/(in/s)

Note: "15% scale factor adjustment allowed.


24/87


18

OK Limits

Upper Lower

Transducer With or Without Barriers

(Volts)

With or Without Barriers

(Volts)

86497 -5.09 -14.65

86517 -5.09 -14.65

Alarm Mode

Latching

Once an alarm is active it will remain active even after the proportional valuedrops below the configured setpoint level. The channel will remain in alarmuntil it is reset by using one of the following methods:

the switch on the front of the Rack Interface Module

the contact on the Rack Interface I/O Module

the Reset button in the Operator Display Software

the reset command through the Communication Gateway Module

the reset command through the Rack Configuration Software

Nonlatching

When an alarm is active, it will go inactive as soon as the proportional valuedrops below the configured setpoint level.

Alert should be the first level alarm that occurs when the transducer signallevel exceeds the selected value. Danger should be the second level alarmthat occurs when the transducer signal level exceeds the selected value.The Alert and Danger values are set on the Setpoint screen.

Barriers

Select the external option if there are external barriers connected between the

monitor and the transducer. Barriers are used to restrict the amount of energythat can flow into a hazardous area.

Delay

The time which a proportional value must remain at or above an over alarmsetpoint or below an under alarm setpoint before an alarm is declared as active.The Alert and Danger setpoints can be set on the Setpoint screen


25/87


19

Alert

First level alarm that occurs when the transducer signal level exceeds theselected Alert/Alarm 1 setpoint. The Alert time delay is always set at onesecond intervals (from 1 to 60) for all available proportional values.

Danger

Second level alarm that occurs when the transducer signal level exceedsthe selected Danger/Alarm 2 setpoint.

100 ms (Typ.) option

The 100 ms option applies to the Danger time delay only and has thefollowing results:

If the 100 ms option is off ():

The Danger time delay can be set at one second intervals (from1 to 60).

The Danger time delay can be set for up to two availableproportional values.

If the 100 ms option is on ():

The Danger time delay is set to 100 ms (Typ.).

The Danger time delay can only be set for the primaryproportional value.

3.3 Available SetpointsThis section specifies the available setpoints for the Aeroderivative Channel. Asetpoint is the level within the full-scale range that determines when an alarmoccurs. The 3500 Monitoring System allows Alert/Alarm 1 setpoints to be set forevery proportional value on each channel. The channel will drive an Alert/Alarm1 indication if one or more of the channel proportional values exceeds itssetpoints. The 3500 Monitoring System also allows up to four Danger/Alarm 2setpoints (two over setpoints and two under setpoints) to be set for up to two ofthe proportional values. You may select any two of the available proportionalvalues for the channel if the 100 ms delay has not been selected.

NoteThe setpoint over and under limits can only be placed within the OK Limits ofthe specified transducer.


26/87


27/87


21

Example 1:

A monitor with the Danger/Alarm 2 Over Band-pass setpoint selected.

Alert/Alarm 1 setpoints: setpoints 1 through 3

Danger/Alarm 2 setpoints: setpoint 4 is Over Band-pass (Danger)

Example 2:

A monitor with the Danger/Alarm 2 Over Direct and the Danger/Alarm 2Over Band-pass setpoint selected.

Alert/Alarm 1 setpoints: setpoints 1 through 3

Danger/Alarm 2 setpoints: setpoint 4 is Over Direct (Danger)

setpoint 5 is Over Band-pass (Danger)

3.4 Software SwitchesThe Aeroderivative GT Vibration Monitor supports two module softwareswitches and four channel software switches. These switches let youtemporarily bypass or inhibit monitor and channel functions. Set these switches

on the Software Switchesscreen under the UtilitiesOption on the main screen

of the Rack Configuration Software.

No changes will take effect until the Setbutton is pressed.


28/87


22

Module Switches

Configuration Mode

A switch that allows the monitor to be configured. To configure the monitor,enable (x) this switch and set the key switch on the front of the RackInterface Module in the PROGRAM position. When downloading a

configuration from the Rack Configuration Software, this switch willautomatically be enabled and disabled by the Rack Configuration Software.If the connection to the rack is lost during the configuration process, use thisswitch to remove the module from Configuration Mode.

Monitor Alarm Bypass

When enabled, the monitor does not perform alarming functions. Allproportional values are still provided.

The monitor switch number is used in the Communication Gateway and DisplayModule.

Monitor Switch Number Switch Name

1 Configuration Mode

3 Monitor Alarm Bypass

Channel Switches

Alert Bypass

When enabled, the channel does not perform Alert alarming functions.

Danger Bypass

When enabled, the channel does not perform Danger alarming functions.

Special Alarm Inhibit

When enabled, all nonprimary Alert or Danger alarms are inhibited.

Bypass

When enabled, the channel provides no alarming functions and supplies noproportional values.


29/87


23

The channel switch number is used in the Communication Gateway and DisplayModule.

Channel Switch Number Switch Name

1 Alert Bypass

2 Danger Bypass

3 Special Alarm Inhibit

4 Bypass


30/87

I/O Module Descriptions 3500/44 Operation and Maintenance

24

4. I/O Module DescriptionsThe Aeroderivative GT Vibration I/O Module receives signals from thetransducers and routes the signals to the Aeroderivative GT Vibration Monitor.The I/O module also supplies power to the transducers and provides a 4 to 20

mA recorder output for each transducer input channels. Install one I/O modulefor each monitor. Install the I/O module behind the monitor in a rack mount orpanel mount rack or above the monitor in a Bulkhead rack.

This section describes how to use the connectors on the I/O modules, lists whatcables to use, and shows the pin outs of the cables.

The 3500 Field Wiring Diagram Package (part number 130432-01) shows howto connect transducers and recorders to the I/O module or the ExternalTermination Block.

4.1 Aeroderivative GT Vibration I/O Module

(Internal Termination)Internal Termination I/O modules require you to wire each transducer andrecorder to the I/O module directly. This section shows what this InternalTermination I/O module looks like and shows how to connect the wires to theEuro Style connector.


31/87

3500/44 Operation and Maintenance I/O Module Descriptions

25

Connect the wire from thetransducers associatedwith Channel 1 and 2 tothe I/O module.

Connect the wire from the

transducers associatedwith Channel 3 and 4 tothe I/O module.

INHB/RET: Connect to anexternal switch.

COM/REC: Connect eachchannel of the I/O moduleto a recorder.


32/87


26

4.1.1 Wiring Euro Style Connectors

To remove a terminal block from its base, loosen the screws attaching theterminal block to the base, grip the block firmly and pull. Do not pull the blockout by its wires because this could loosen or damage the wires or connector.

Typical I/O module

Refer to the 3500 Field Wiring Diagram Package for the recommended wiring.Do not remove more than 6 mm (0.25 in) of insulation from the wires.


33/87


27

4.2 External Termination I/O ModulesExternal Termination I/O modules let you simplify the wiring to the I/O modulesin a 3500 rack by using 25-pin and 9-pin cables to route the signals fromtransducers and recorders to the I/O module. This section describes theExternal Termination I/O modules available for use with the Aeroderivative GT

Vibration Monitor. It also shows what the External Termination Blocks look likeand the pin outs of the cables that go between the External Termination I/Omodules and the External Termination Blocks.

4.2.1 Aeroderivative GT Vibration I/O Module (External

Termination)

This section discusses the features of the Aeroderivative GT Vibration I/OModule.

Connect the I/O moduleto the ExternalTermination Block usingcable 129525-XXXX-XX.

Connect the I/O module tothe Recorder ExternalTermination Block usingcable 129529-XXXX-XX.


34/87


28

4.2.2 Aeroderivative GT TMR Vibration I/O Module (External

Termination)

The Aeroderivative GT TMR Vibration I/O Module is used in a TMR rack andcan be configured as TMR I/O Discrete or TMR I/O Bussed.

When configured as TMR I/O Discrete, twelve transducers send input signals tothree Aeroderivative GT Vibration Monitors so that each transducer signal ofeach channel is not shared by other channels. Six External Termination Blocksare required: three are Aeroderivative GT External Termination Blocks used towire the transducers; the other three are Recorder External Termination Blocksused to wire the recorders.

When configured as TMR I/O Bussed, four transducers are bussed to threeAeroderivative GT Vibration Monitors so that each transducer is shared by threechannels, one channel from each monitor. Four External Termination Blocks arerequired: one is a Bussed Aeroderivative GT External Termination Block used towire the transducers; the other three are Recorder External Termination Blocks

used to wire the recorders.

Connect the I/O module to the External TerminationBlock using cable 129525-XXXX-XX

Connect the I/O module to the Recorder ExternalTermination Blocks using cable 129529-XXXX-XX


35/87


29

4.2.3 External Termination Blocks

The three types of External Termination Blocks used with an Aeroderivative GTVibration I/O Module are the Aeroderivative GT External Termination Blocks, theBussed Aeroderivative GT External Termination Blocks, and the RecorderExternal Termination Blocks. Each type comes with either Terminal Strip or Euro

Style connectors.

4.2.3.1 Aeroderivative GT External Termination Block (Terminal Strip

connectors)

Channel 1 and Channel 2


Connect the I/O module tothe External TerminationBlock using cable 129525-

XXXX-XX.

Connect the wire from thetransducers associated withChannel 1, 2, 3, and 4 to theExternal Termination Block.

INHB/RET: Connect to an

external switch.


36/87


30

4.2.3.2 Aeroderivative GT External Termination Block (Euro Style

connectors)



Connect the I/Omodule to the ExternalTermination Blockusing cable 129525-XXXX-XX.

Connect the wire from

the transducersassociated withChannel 1, 2, 3, and 4to the ExternalTermination Block.


37/87


31

4.2.3.3 Bussed Aeroderivative GT External Termination Block (Terminal

Strip connectors)

Connect the wire from thetransducers associated withChannel 1, 2, 3, and 4 to theExternal Termination Block.

INHB_A/RET_A,INHB_B/RET_B, andINHB_C/RET_C: Connect toa common switch or individualswitches.

Connect the TMR I/O Module tothe External Termination Blockusing cable 129525-XXXX-XX.




38/87


39/87


33

4.2.3.5 Recorder External Termination Block (Terminal Strip connectors)



Connect the I/O moduleto the Recorder ExternalTermination Block usingcable 129529-XXXX-XX.

Connect the recordersassociated with Channel 1,2, 3, and 4 to the Recorder

External Termination Block.


40/87


34

4.2.3.6 Recorder External Termination Block (Euro Style connectors)

Connect the recordersassociated with Channel 1, 2, 3,and 4 to the Recorder ExternalTermination Block.



Connect the I/O module tothe Recorder ExternalTermination Block usingcable 129529-XXXX-XX.


41/87


35

4.2.4 Cable Pin Outs

129525-XXXX-XX3500 Transducer Signal to ET Block Cable


42/87


36

129529-XXXX-XX

3500 Recorder Output to ET Block Cable


43/87

3500/44 Operation and Maintenance Maintenance

37

5. MaintenanceThe boards and components inside of 3500 modules cannot be repaired in thefield. Maintaining a 3500 rack consists of testing module channels to verify thatthey are operating correctly. Modules that are not operating correctly should be

replaced with a spare.This section shows how to verify the operation of channels in an AeroderivativeGT Vibration Monitor (Section 5.1) and how to adjust the scale factor (Section5.2).

5.1 Verifying a 3500 Rack - Aeroderivative GT

Vibration MonitorThe 3500 Monitoring System is a high precision instrument that requires nocalibration. The functions of monitor channels, however, must be verified atregular intervals. At each maintenance interval, we recommend that you usethe procedures in this section to verify the operation of all active channels in themonitor. It is only necessary to verify the alarms and accuracy of channelproportional values that are active.

Section

Number

Topic Page

Number

5.1.1 Choosing a Maintenance Interval37

5.1.2 Required Test Equipment 38

5.1.3 Typical Verification Test Setup 38

5.1.4 Using the Rack Configuration Software 39

5.1.5 Aeroderivative Channels 41

5.1.6 Verify Recorder Outputs 53

5.1.7 If a Channel Fails a Verification Test 54

5.1.1 Choosing a Maintenance Interval

Use the following approach to choose a maintenance interval: Start with an interval of one year and then shorten the interval if any of the

following conditions apply:

- the monitored machine is classified as critical

- the 3500 rack is operating in a harsh environment such as in extremetemperature, high humidity, or in a corrosive atmosphere


44/87

Maintenance 3500/44 Operation and Maintenance

38

At each interval, use the results of the previous verifications and ISOProcedure 10012-1 to adjust the interval.

5.1.2 Required Test Equipment

The verification procedures in this section require the following test equipment.

Power Supply (single channel)

Multimeter - 42digits

Function Generator

5.1.3 Typical Verification Test Setup

The following figure shows the typical test setup for verifying an AeroderivativeGT Vibration Monitor. The test equipment is used to simulate the transducersignal and the laptop computer is used to observe the output from the rack.

3500 rackLaptop computer

Test Equipment

RS-232 communications


45/87


39

Transducers can be connected to a 3500 rack in a variety of ways. Dependingon the wiring option for the I/O module of your monitor, connect the testequipment to the monitor using one of the following methods:

5.1.4 Using the Rack Configuration Software

The laptop computer that is part of the test setup uses the Rack ConfigurationSoftware to display output from the rack and to reset certain operatingparameters in the rack. To perform the test procedures in this section you mustbe familiar with the following features of the Rack Configuration Software.

upload, download, and save configuration files

enable and disable channels and alarms

bypass channels and alarms

display the Verification screen

The Rack Configuration and Test Utilities Guide (part number 129777-01)explains how to perform these operations.

NoteIt is important to save the original rack configuration before doing anyMaintenance and/or Troubleshooting Procedures. It may be necessaryduring these procedures to change some configuration settings which mustbe restored to their original values at the conclusion of the procedures. Atthat time the original configuration should be downloaded to the rack.

Aeroderivative GTVibration I/OModule (InternalTermination)

External TerminationBlock (Euro StyleConnectors)

External TerminationBlock (Terminal StripConnectors)

Connect test

equipmenthere.


46/87


40

The following figures show how the Verification screen displays output from a3500 rack:

In the Setpoint box the alarms are listed as follows:

Danger/Alarm 2 Over = Solid Red Line

Alert/Alarm 1 Over = Solid Yellow Line

Alert/Alarm 1 Under = Dashed Yellow Line

Danger/Alarm 2 Under = Dashed Red Line

Alarm Verification and Zero Position Voltage Fields:

These fields display output for verifying channel alarms. Alert/Alarm 1

alarms are displayed in yellow in the bar graph and with the word Alarmunder the current value box. Danger/Alarm 2 alarms are displayed in red inthe bar ra h and with the word Dan er under the current value box.

Current ValueThe current proportional value is displayed in this box


47/87


41

The Zero Position Voltage is the voltage input that will cause the reading on thebar graph display and current value box to be zero. The Zero Position Voltsvalue is displayed in the Z.P. Volts box above each channel value bar graph.

Any channel bar graph value that enters Alert/Alarm 1 or Danger/Alarm 2 willcause the alarm lines in the Channel Status box to indicate an alarm. Any

channel that enters alarm will cause the alarm lines in the Module Status box toindicate an alarm.

5.1.5 Aeroderivative Channels

The following sections describe how to test alarms, verify channels, and test OKlimits for channels configured as Aeroderivative. The output values and alarmsetpoints are verified by varying the input vibration signal level and observingthat the correct results are reported in the Verification screen on the testcomputer.

OK Limit Verification Fields

These fields display output for verifying OK Limits.

Current Value Verification Fields:

These fields display output for verifying channel output.


48/87


42

Aeroderivative channels can be configured for the following channel values andalarms:

Channel Values Alarms

Over Under

Direct U

1X Amplitude U

Band-pass U

5.1.5.1 Test Equipment and Software Setup - Aeroderivative

The following test equipment and software setup can be used as the initial setup needed for all the verification procedures (Test Alarms, Verify Channels, andTest OK Limits).

CAUTION

High voltage present.

Contact could cause

shock, burns, or death.

Do not touch exposed

wires or terminals.

Application Alert

Tests will exceed alarm

setpoint levels causing

alarms to activate. This

could result in a relay

contact state change.

Application Alert

Disconnecting the field

wiring will cause a not

OK condition.


49/87


43

Test Equipment Setup - Aeroderivative

Simulate the transducer signal by connecting the power supply, functiongenerator, and multimeter to + and - of channel 1 with polarity as shown in thefigure on page 43 (Aeroderivative Test Setup). Set the test equipment asspecified below.

Power Supply Function Generator

-10.00 Vdc Waveform: sinewaveDC Volts: 0 VdcFrequency: 130 Hz

Amplitude level: Minimum (above zero)

Figure 5-2. Aeroderivative Test Setup

The Test Equipment outputs should be floating relative to earth ground.

MultimeterFunction generator

Power Supply


50/87


44

Verification Screen Setup - Aeroderivative

Run the Rack Configuration Software on the test computer. Choose

Verificationfrom the Utilities menu and choose the proper Slot number and

Channel number then click on the Verifybutton.

The following table directs you to the starting page of each maintenance sectionassociated with the Aeroderivative Channels.

Section

Number

Topic Page

Number

5.1.5.2 Test Alarms - Direct and Band-pass 44

5.1.5.2 Test Alarms - 1X Amplitude 46

5.1.5.3 Verify Channel Values - Direct and Band-pass 47

5.1.5.3 Verify Channel Values - 1X Amplitude 48

5.1.5.5 Calculate Verification Frequency and Full-Scale Signal Amplitude

49

5.1.5.6 Test OK Limits 52

5.1.5.2 Test Alarms - Aeroderivative

The general approach for testing alarm setpoints is to simulate theAeroderivative signal with a function generator and power supply. The alarmlevels are tested by varying the output from the test equipment and observingthat the correct results are reported in the Verification screen on the test

computer. The same test alarm procedure is used for Direct and Band-pass. Itis only necessary to test those alarm parameters that are configured and beingused. The general test procedure to verify current alarm operation will includesimulating a transducer input signal and varying this signal:

1. to exceed over Alert/Alarm 1 and Danger/Alarm 2 Setpoints and

1. to drop below any under Alert/Alarm 1 and Danger/Alarm 2 Setpoints and

1. to produce a nonalarm condition.

When varying the signal from an alarm condition to a nonalarm condition, alarmhysteresis must be considered. Adjust the signal well below the alarm setpointfor the alarm to clear.

Direct and Band-pass

1. Disconnect PWR, COM, +, and !field wiring from the channel terminals on

the Aeroderivative GT Vibration I/O Module.

1. Connect test equipment and run software as described in Section 5.1.5.1(Test Equipment and Software Setup - Aeroderivative). Leave thefrequency of the function generator set to 130 Hz.


51/87


45

1. Adjust the function generator amplitude to produce a reading that is belowthe Direct/Band-pass setpoint levels on the Direct/Band-pass bar graphdisplay of the Verification screen.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify thatthe OK LED is on, the bar graph indicator for Direct/Band-pass is green, and

the Current Value Field has no alarm indication.1. Adjust the function generator amplitude such that the signal just exceeds

the Direct/Band-pass Over Alert/Alarm 1 setpoint level. Wait for 2 or 3seconds after the alarm time delay expires and verify that the bar graphindicator for Direct/Band-pass changes color from green to yellow and thatthe Current Value Field indicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify thatthe bar graph indicator for Direct/Band-pass remains yellow and that theCurrent Value Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal just exceedsthe Direct/Band-pass Over Danger/Alarm 2 setpoint level. Wait for 2 or 3seconds after the alarm time delay expires and verify that the bar graphindicator for Direct/Band-pass changes color from yellow to red and that theCurrent Value Field indicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify thatthe bar graph indicator for Direct/Band-pass remains red and that theCurrent Value Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal reads below theOver Alarm setpoint levels. If the nonlatching option is configured, observethat the bar graph indicator for Direct/Band-pass changes color to green andthat the Current Value Field contains no indication of alarms. Press theRESET switch on the Rack Interface Module (RIM) to reset latching alarms.

1. If you can not verify any configured alarm, recheck the configured setpoints.If the monitor still does not alarm properly or fails any other part of this test,go to Section 5.1.7 (If a Channel Fails a Verification Test).

1. Disconnect the test equipment and reconnect the PWR , COM, + and !field

wiring to the channel terminals on the Aeroderivative GT Vibration I/OModule. Verify that the OK LED comes on and the OK relay energizes.Press the RESET switch on the Rack Interface Module (RIM) to reset theOK LED.

1. Repeat steps 1 through 11 for all configured channels.


52/87


46

1X Amplitude (1X Ampl)

Note

The Keyphasor must be triggering and have a valid rpm value to check thisparameter.

1. Disconnect PWR , COM, +, and !field wiring from the channel terminals on


1. Connect test equipment and run software as described in Section 5.1.5.1(Test Equipment and Software Setup - Aeroderivative). Leave thefrequency of the function generator set to 130 Hz.

1. Adjust the function generator amplitude to produce a reading that is belowthe 1X Ampl setpoint levels on the 1X Ampl bar graph display of the

Verification screen.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify thatthe OK LED is on, the bar graph indicator for 1X Ampl is green, and theCurrent Value Field has no alarm indication.

1. Adjust the function generator amplitude such that the signal just exceedsthe 1X Ampl Over Alert/Alarm 1 setpoint level. Wait for 2 or 3 seconds afterthe alarm time delay expires and verify that the bar graph indicator for 1X

Ampl changes color from green to yellow and that the Current Value Fieldindicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that

the bar graph indicator for 1X Ampl remains yellow and that the CurrentValue Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal just exceedsthe 1X Ampl Over Danger/Alarm 2 setpoint level. Wait for 2 or 3 secondsafter the alarm time delay expires and verify that the bar graph indicator for1X Ampl changes color from yellow to red and that the Current Value Fieldindicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify thatthe bar graph indicator for 1X Ampl remains red and that the Current ValueField still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal reads below the

Over Alarm setpoint levels. If the nonlatching option is configured, observethat the bar graph indicator for 1X Ampl changes color to green and that theCurrent Value Field contains no indication of alarms. Press the RESETswitch on the Rack Interface Module (RIM) to reset latching alarms.

1. If you can not verify any configured alarm, recheck the configured setpoints.If the monitor still does not alarm properly or fails any other part of this test,go to Section 5.1.7 (If a Channel Fails a Verification Test).

1. Disconnect the test equipment and reconnect the PWR, COM, +, and !field

wiring to the channel terminals on the Aeroderivative GT Vibration I/O


53/87


47

Module. Verify that the OK LED comes on and the OK relay energizes.Press the RESET switch on the Rack Interface Module (RIM) to reset theOK LED.


5.1.5.3 Verify Channel Values - Aeroderivative

The general approach for testing these parameters is to simulate theAeroderivative signal with a function generator and power supply. The channelvalues are verified by varying the output from the test equipment and observingthat the correct results are reported in the Verification screen on the testcomputer. The same verification procedure is used for Direct and Band-pass.

NoteThese parameters have an accuracy specification of "1% of full-scale.

Direct and Band-pass



1. Connect test equipment and run software as described in Section 5.1.5.1(Test Equipment and Software Setup - Aeroderivative).

1. Adjust the function generator frequency to the verification frequency listed inSection 5.1.5.4, page 48.

1. Calculate the full-scale input voltage using the formulas in Section 5.1.5.5,page 49. Adjust the function generator (sinewave) to the calculatedamplitude.

1. Verify that the Direct/Band-pass bar graph display and the Current ValueBox is reading "1% of full scale. If the recorder output is configured, verify

that it is reading "1% of full scale. (Refer to Section 5.1.6 (Verify Recorder

Outputs) for the steps.

1. If the reading does not meet specifications, check that the input signal iscorrect. If the monitor still does not meet specifications or fails any otherpart of this test, go to Section 5.1.7 (If a Channel Fails a Verification Test).

1. Disconnect the test equipment and reconnect the PWR, COM, + and !field

wiring to the channel terminals on the Aeroderivative GT Vibration I/O

Module. Verify that the OK LED comes on and the OK relay energizes.Press the RESET switch on the Rack Interface Module (RIM) to reset theOK LED.



54/87


48

1X Amplitude

NoteThe Keyphasor must be triggering and have a valid rpm value to check this

parameter.



1. Connect test equipment and run software as described in Section 5.1.5.1(Test Equipment and Software Setup - Aeroderivative).

1. Adjust the function generator frequency to the verification frequency listed inSection 5.1.5.4, page 48.

1. Calculate the full-scale input voltage using the formulas in Section 5.1.5.5,page 49. Adjust the function generator (sinewave) to the calculatedamplitude.

1. Verify that the 1X Ampl bar graph display and the Current Value Box isreading "1% of full scale. If the recorder output is configured, refer to

Section 5.1.6 (Verify Recorder Outputs) for steps to verify the recorderoutput.

1. If the reading does not meet specifications, check that the input signal iscorrect. If the monitor still does not meet specifications or fails any otherpart of this test, go to Section 5.1.7 (If a Channel Fails a Verification Test).


wiring to the channel terminals on the Aeroderivative GT Vibration I/OModule. Verify that the OK LED comes on and that the OK relay energizes.

Press the RESET switch on the Rack Interface Module (RIM) to reset theOK LED.


5.1.5.4 Determining the Verification Frequency

Use the following verification frequencies to verify channels in an AeroderivativeGT Vibration Monitor.

If the proportional

value is...

Set the function generator to...

(sinewave)

Direct 100 Hz

Band-pass the center of the pass band:- for High-pass 75 Hz, Low Pass 200 Hz: 122.5 Hz- for High-pass 100 Hz, Low Pass 200 Hz: 141.5 Hz

1X Amplitude 130 Hz


55/87


49

5.1.5.5 Calculating the Input Voltage for Full-scale

The procedure for verifying channel values require that you use the followingformulas to calculate the input voltage for full-scale. To find the full-scale input

voltage, use the appropriate formula for integrated or non-integrated units.

Full-scale - No Integration

To find the full-scale value for the configured full-scale range, input theconfigured full-scale range and transducer scale factor into the formulas shownin the table below:

NoteUse the Transducer Scale Factor displayed in the Scale Factor Box on theVerification Screen.

Full Scale Formulas

Units To Input RMS

(Volts)

To Input Peak to Peak (Volts)

in/s peak (T.S.F. x Full-Scale) x0.707

(T.S.F. x Full-Scale) x 2

mm/s

peak

(T.S.F x Full-Scale) x

0.707

(T.S.F x Full-Scale) x 2

T.S.F. = Transducer Scale Factor. To use the formulas, the T.S.F shouldbe in volts and the T.S.F. and full-scale values should both be of the sameunit system (metric or English).

Example 1:

Transducer Scale Factor = 100 mV/(in/s)Full Scale = 2 in/s pk

For Peak to Peak input:( 0.100 X 2 ) X 2 = 0.4 V pp

For V rms input:( 0.100 X 2 ) X 0.707 = 0.1414 V rms


56/87


50

Example 2:

Transducer Scale Factor = 3.94 mV/(mm/s)Full Scale = 50 mm/s pk

For Peak to Peak input:

( 0.00394 X 50 ) X 2 = 0.394 V pp

For RMS input:( 0.00394 X 50 ) X 0.707 = 0.1392 V rms

Full-scale - Integration

Use the following formulas to calculate the full-scale voltage for the followingunits: mil pp and :m pp.

Input

Voltage

(V rms)

=Full - scale (English units)

31.83

Aeroderivative

Sacle Factor

(English units

0.1 volts / (inch / s) Typ.

/ Verification Frequency

0.07071

Input

Voltage

(V pp)

=Full - scale (English units)

31.83

Aeroderivative

Sacle Factor

(English units

0.1 volts / (inch / s) Typ.

/ Verification Frequency

0.2


57/87


51

To use the formulas, the Aeroderivative scale factor should be in volts, and thefull-scale value and Aeroderivative scale factor should be in English units. Usethe following conversion formulas to convert from metric to English units:

Scale Factor:

Aeroderivative

Scale factor

(in / s)

Aeroderivative

Scale Factor

(mm / s)

25.4

=

Full-scale:

Full Scale

(mil)

=

Full Scale (mm)

25.4

Example:

For a monitor operating under the following conditions:Transducer scale factor = 3.94 mV/(mm/s)Full scale = 125 :m pp

Verification frequency = 122.5 Hz

1. Convert metric units to English units.

scale factor:

3.94 mV / (mm / s) x 25.4 = 100 mV(inch / s)

Full-scale:

Full - Scale(mil)

= 125 (mm)25.4

= 4.92 mil

2. Calculate input voltage.

Input

Voltage

(V rms)

=4.92

31.8309

0.100/ 122.5

0.0701 0.1338 V rms

=

Input

Voltage

(V pp)

=4.92

31.8309

0.100/ 122.5

0.02 0.3786 V pp

=


58/87


59/87


53


wiring to the channel terminals on the Aeroderivative GT Vibration I/OModule. Verify that the OK LED comes on and that the OK relay energizes.Press the RESET switch on the Rack Interface Module (RIM) to reset theOK LED.

1. If you can not verify any configured OK limit, go to Section 5.1.7 (If aChannel Fails a Verification Test).


1. Return the bypass switch for all configured channels back to their originalsetting.

Aeroderivative Default OK Limits Table

Transducer Lower OK Limit

(Volts)

Upper OK Limit

(Volts)

86497 w/o barriers -5.09 -14.65

86517 w/ & w/o barriers -5.09 -14.65

Note: Assume 50 mV accuracy for check tolerance.

5.1.6 Verify Recorder Outputs

The following test equipment and procedure should be used in the verificationof the recorder outputs. Recorder outputs for the 3500/44 Aeroderivative GTVibration Monitor are 4 to 20 mA.

AeroderivativeGT VibrationI/O Module(InternalTermination)

Recorder ExternalTermination Block(Euro StyleConnectors)

Recorder ExternalTermination Block(Terminal StripConnectors)

Connect testequipmenthere.


60/87


61/87


62/87

Troubleshooting 3500/44 Operation and Maintenance

56

6. TroubleshootingThis section describes how to troubleshoot a problem with the AeroderivativeGT Vibration Monitor or the I/O module by using the information provided by theself-test, the LEDs, System Event List, and the Alarm Event List .

6.1 Self-testTo perform the Aeroderivative GT Vibration Monitor self-test:

1. Connect a computer running the Rack Configuration Software to the 3500rack (if needed).

2. Select Utilitiesfrom the main screen of the Rack Configuration Software.

3. Select System Events/Module Self-testfrom the Utilities menu.

4. Press the Module Self-testbutton on the System Events screen.

Application Alert

Machinery protection

will be lost while self-

test is being performed.

5. Select the slot that contains the Aeroderivative GT Vibration Monitor and

press the OKbutton. The monitor will perform a full self-test and the

System Events screen will be displayed. The list will not contain the resultsof the self-test.

6. Wait 30 seconds for the module to run a full self-test.

7. Press the Latest Eventsbutton. The System Events screen will be updated

to include the results of the self-test.

8. Verify if the monitor passed the self-test. If the monitor failed the self-test,

refer to Section Error! Reference source not found..


63/87

3500/44 Operation and Maintenance Troubleshooting

57

6.2 LED Fault ConditionsThe following table shows how to use the LEDs to diagnose and correctproblems.

OK TX/RX BYPASS Scenario Action

1 Hz 1 Hz Monitor is not configured, isin Configuration Mode, or inCalibration Mode.

Reconfigure theMonitor or exitConfiguration orCalibration Mode.

5 Hz Monitor error Check the SystemEvent List for severity.

ON Flashing Monitor is operatingcorrectly.

No action required.

OFF Monitor is not operatingcorrectly or the transducerhas faulted and has stoppedproviding a valid signal.

Check the SystemEvent List and the

Alarm Event List.

2 Hz Monitor is configured for Timed OK Channel Defeatand has been not OK sincethe last time the RESETbutton was pressed.

Press the Reset buttonon the Rack InterfaceModule. Check theSystem Event List.

Not

flashing

Monitor is not operating

correctly.

Monitor is not executing

alarming functions.Replace immediately.

OFF Alarming Enabled No action required.

ON Some or all AlarmingDisabled.

No action required.

= behavior of the LED is not related to the condition.


64/87


58

6.3 System Event List MessagesThis section describes the System Event List Messages that are entered by the

Aeroderivative GT Vibration Monitor and gives an example of one.

Example of a System Event List Message:

SequenceNumber

EventInformation

EventNumber

Class EventDateDDMMYY

EventTime

EventSpecific

Slot

0000000123 Device NotCommunicating

32 1 02/01/90 12:24:31:99 5L

Sequence Number: The number of the event in the System Event List(for example 123).

Event Information: The name of the event (for example Device NotCommunicating).

Event Number: Identifies a specific event.

Class: The severity of the event. The following classes areavailable:

Class Value Classification

0

123

Severe/Fatal Event

Potential Problem EventTypical logged EventReserved

Event Date: The date the event occurred.

Event Time: The time the event occurred.

Event Specific: Provides additional information for the events thatuse this field.

Slot: Indicates the module that the event is associatedwith. If a half-height module is installed in the upper

slot or a full-height module is installed, the field willbe 0 to 15. If a half-height module is installed in thelower slot then the field will be 0L to 15L. Forexample, a module installed in the lower position ofslot 5 would be 5L.


65/87


59

The following System Event List Messages may be placed in the list by theAeroderivative GT Vibration Monitor and are listed in numerical order. If anevent marked with a star (*) occurs, the monitor will stop alarming. If you areunable to solve any problems, contact your nearest Bently Nevada Corporationoffice.

* Flash Memory FailureEvent Number: 11Event Classification: Severe/Fatal Event

Action: Replace the Monitor Module as soon as possible.

EEPROM Memory Failure

Event Number: 13Event Classification: Potential Problem or Severe/Fatal Event

Action: Replace the Monitor Module as soon as possible.

Device Not Communicating

Event Number: 32Event Classification: Potential Problem

Action: Check to see if one of the following components is faulty:

the Monitor Module the rack backplane

Device Is Communicating


Action: Check to see if one of the following components is faulty: the Monitor Module the rack backplane

* Neuron Failure

Event Number: 34Event Classification: Severe / Fatal Event

Action: Replace the Monitor Module immediately.Monitor Module will stop alarming.

* I/O Module Mismatch


Action:Verify that the type of I/O module installed matches what wasselected in the software. If the correct I/O module is installed, theremay be a fault with the Monitor Module or the Monitor I/O module.Monitor Module will stop alarming.


66/87


60

I/O Module Compatible


Action:Verify that the type of I/O module installed matches what was

selected in the software. If the correct I/O module is installed, theremay be a fault with the Monitor Module or the Monitor I/O module.

Fail Main Board +5V-A (Fail Main Board +5V - upper Power Supply)


Action:Verify that noise from the power source is not causing the problem.If the problem is not caused by noise, check to see if one of thefollowing components is faulty:

the Monitor Module

the Power Supply installed in the upper slot

Pass Main Board +5V-A (Pass Main Board +5V - upper Power Supply)



the Monitor Module the Power Supply installed in the upper slot

Fail Main Board +5V-B (Fail Main Board +5V - lower Power Supply)



the Monitor Module the Power Supply installed in the lower slot


67/87


61

Pass Main Board +5V-B (Pass Main Board +5V - lower Power Supply)


Action:Verify that noise from the power source is not causing the problem.

If the problem is not caused by noise, check to see if one of thefollowing components is faulty:


* Fail Main Board +5V-AB (Fail Main Board +5V - upper and lower Power

Supplies)

Event Number: 104Event Classification: Severe/Fatal Event



the Monitor Module the Power Supply installed in the upper slot the Power Supply installed in the lower slotMonitor Module will stop alarming.

Pass Main Board +5V-AB (Pass Main Board +5V - upper and lower

Power Supplies)



the Monitor Module the Power Supply installed in the upper slot the Power Supply installed in the lower slot

Fail Main Board +15V-A (Fail Main Board +15V - upper Power Supply)

Event Number: 106

Event Classification: Potential ProblemAction:

Verify that noise from the power source is not causing the problem.If the problem is not caused by noise, check to see if one of thefollowing components is faulty:



68/87


62

Pass Main Board +15V-A (Pass Main Board +15V - upper Power Supply)





Fail Main Board +15V-B (Fail Main Board +15V - lower Power Supply)


Action:Verify that noise from the power source is not causing the problem.If the problem is not caused by noise, check to see if one of the

following components is faulty: the Monitor Module the Power Supply installed in the lower slot

Pass Main Board +15V-B (Pass Main Board +15V - lower Power Supply)




* Fail Main Board +15V-AB (Fail Main Board +15V - upper and lower

Power Supplies)


Action:Verify that noise from the power source is not causing the problem.If the problem is not caused by noise, check to see if one of the

following components is faulty: the Monitor Module the Power Supply installed in the upper slot the Power Supply installed in the lower slotMonitor Module will stop alarming.


69/87


63

Pass Main Board +15V-AB (Pass Main Board +15V - upper and lower

Power Supplies)


Action:



Fail Main Board -24V-A (Fail Main Board -24V - upper Power Supply)


Action:



Pass Main Board -24V-A (Pass Main Board -24V - upper Power Supply)




Fail Main Board -24V-B (Fail Main Board -24V - lower Power Supply)






70/87


64

Pass Main Board -24V-B (Pass Main Board -24V - lower Power Supply)





* Fail Main Board -24V-AB (Fail Main Board -24V - upper and lower Power

Supplies)




the Monitor Module the Power Supply installed in the upper slot the Power Supply installed in the lower slotMonitor Module will stop alarming.

Pass Main Board -24V-AB (Pass Main Board -24V - upper and lower

Power Supplies)




Device Configured

Event Number: 300

Event Classification: Typical Logged EventAction: No action required.


71/87


65

* Configuration Failure


Action:Download a new configuration to the Monitor Module. If the problem

still exists, replace the Monitor Module immediately.Monitor Module will stop alarming.

Configuration Failure


Action:Download a new configuration to the Monitor Module. If the problemstill exists, replace the Monitor Module as soon as possible.

* Module Entered Cfg Mode (Module Entered Configuration Mode)

Event Number: 302Event Classification: Typical Logged Event

Action:No action required.Monitor Module will stop alarming.

Software Switches Reset


Action:

Download the software switches to the Monitor Module. If thesoftware switches are not correct, replace the Monitor Module assoon as possible.

Internal Cal Reset (Internal Calibration Reset)

Event Number: 307Event Classification: Potential ProblemEvent Specific: Ch pair x

Action: Replace Monitor Module immediately.

Monitor TMR PPL Failed (Monitor TMR Proportional value Failed)Event Number: 310Event Classification: Potential Problem

Action: Replace the Monitor Module.


72/87


66

Monitor TMR PPL Passed (Monitor TMR Proportional value Passed)


Action: Replace the Monitor Module.

Module Reboot


Action: No action required.

* Module Removed from Rack


Action: No action required.Monitor Module will stop alarming.

Module Inserted in Rack



Device Events Lost



This may be due to the removal of the Rack Interface Module for anextended period of time.

Module Alarms Lost


Action: No action required.This may be due to the removal of the Rack Interface Module for anextended period of time.

* Module Entered Calibr. (Module Entered Calibration Mode)Event Number: 365Event Classification: Typical Logged Event

Action: No action required.Monitor Module will stop alarming.


73/87


67

Module Exited Calibr. (Module Exited Calibration Mode)



Pass Module Self-test



* Enabled Ch Bypass (Enabled Channel Bypass)

Event Number: 416Event Classification: Typical logged eventEvent Specific: Ch x


Alarming has been inhibited by this action.

Disabled Ch Bypass (Disabled Channel Bypass)



* Enabled Alert Bypass

Event Number: 420

Event Classification: Typical logged eventEvent Specific: Ch x

Action: No action required.Alarming has been inhibited by this action.

Disabled Alert Bypass



* Enabled Danger Bypass


Action: No action required.Alarming has been inhibited by this action.


74/87


68

Disabled Danger Bypass




75/87

8/13/2019 3500 44 Aeroder

3500 44 Aeroderivative Monitor 129774-01 Rev D

Documents

Transcript of 3500 44 Aeroderivative Monitor 129774-01 Rev D