Bently Nevada ADAPT 3701/40 Specifications

3701/40 ADAPT Machinery Dynamics

Monitor

Datasheet

BentlyNevadaMachineryCondition Monitoring

103M2037Rev. J

3701/40 Simplex

3701/40 Duplex

Advanced Distributed Architecture

Platform Technology - ADAPT

TheBently Nevada Advanced Distributed Architecture Platform Technology, or ADAPT3701, is a family ofcompact, high performancesafety and machinery protection and condition monitoring solutions. ADAPTproducts aretargeted at specific assets and applications, and excelat theintensive signalprocessing necessary to identify early indicators of machinefailuremodes long beforean alarm.

Description

The3701/40Machinery Dynamics (MD) Monitor is designed for useon a broad rangeofmachinetrains or individualcasings wherethesensor point count fits themonitor’s channel count and whereadvanced signalprocessing is desired. The 3701/40is optimized for intensivesignalprocessing required on complexmachinery such as gearboxes, planetary gearboxes, and roller element bearing (REB) machines as well as offering advanced measurement capabilities on conventionalmonitoring methods such as radialvibration, thrust position, and casing absolutevibration. The3701/40 DualRedundant (DR) monitor is designed for applications that requirea higher levelofreliability from thevibration system.

The3701/40has a rugged industrialdesign allowing it to be skid mounted closeto themachineand reduceinstallation wiring. Its compact sizeprovides moremounting options compared to traditionalrack based solutions. It is capableof accepting a widearray ofsensor types, including eddy current proximity probes, accelerometers, velocity, acceleration, dynamic pressure, Integrated Circuit Piezoelectric Sensors (IEPE), and magnetic speed pick-ups.

The3701/40is configured and validated with Bently Nevada Monitor Configuration (BNMC) software. BNMCis a simpleand powerfulconfiguration and verification software. It is ordered separately and is required for operation.

3701/40ADAPTMachinery DynamicsMonitor
Datasheet	103M2037Rev. J

The3701/40MDMonitor is a self-contained devicethat is ordered with a singlepart number for either a simplexor duplexterminalbaseand is madeup ofthefollowing major components:

	Part	Quantity Required in
		each 3701/40
	3701Simplex	1
	TerminalBase
	3701Processor	1
	Module
	3701Input Module	1or 2
	3701Output	1or none
	Module

	Part	Quantity Required in
		each 3701/40
	3701Duplex	1
	TerminalBase
	3701Processor	2
	Module
	3701Input Module	1or 2
	3701Output	1or none
	Module

3701/40 Overview

The3701/40is a robust, compact, selfcontained 12-channeldevicewith sophisticated signalprocessing capability and with a form-factor suitablefor distribution close to machinery. It has a modular construction that allows field changing ofcomponents and is fully-configurable. It combines protection and condition monitoring (CM) in a single package. With theability to define measurements and alarms within themonitor, it can act as a stand-aloneprotection and CM system. Thereis no need for any interaction with externalsoftwareto trigger or controlthe monitor during operation.

The3701/40DR Machinery Dynamics Monitor is a compact, field mountable, vibration

protection system that utilizes dualredundant processor modules.

In theDR version, each processor moduleis identically configured and redundantly digitizes and processes allsensor inputs, executes identicallogic, and each processor module independently drives separatealarm relays.

3701 Digital Communications

The3701/40has two independent Ethernet physicalRJ45connections per CPU for digital communication with Bently Nevada software products hosted on network computers and plant automation systems. It uses a proprietary Ethernet protocolfor communicating with System_1_Evolution softwareand theBNMCconfiguration software.

The3701/40includes two Ethernet ports per CPU which provideEthernet TCP/IP communications capabilities. Standard industrialprotocols are:

• Modbus TCP/IP

Modbus over Ethernet is availablefor connection to HMI’s, unit controlsystems, or other plant automation equipment. The3701 can only beconfigured as a server.

• Ethernet GlobalData (EGD)

EGDis a GE protocolused on Mark VIand Mark Viecontrollers and by GE Programmable Automation Controllers and certain 3rd party automation equipment.

3701/40 System Description

The3701/40monitor is powered by singleor dualredundant external+24V DCpower. It consists offour main physicalcomponents: the terminalbase(singleor dual), oneor two processor modules, oneor two input modules, and an output module.

Theterminalbaseis themounting platform for themonitor. Thedifferent modules installinto theterminalbaseand two pluggablefield wiring termination blocks plug into theterminal base. Sensor wiring terminates on thewiring blocks and terminations for discreteinputs (Reset, Trip Multiply, etc.) terminatedirectly on

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	3701/40ADAPTMachinery DynamicsMonitor
	Datasheet	103M2037Rev. J
	thebasebut on theoppositesidefrom sensor	Processor Module
	wiring.	Theprocessor module, or CPU module,
	Theprocessor moduleis themonitor’s CPU. It is
		performs A/Dconversion, digitalsignal
	thecenter ofthelogic and signalprocessing for	processing, alarm and logic processing, and
	themonitor.	communications to Bently Nevada software
	Therearetwo terminalbaseconfigurations:	and plant automation systems. TheCPU
		moduleemploys sophisticated diagnostics
	• A simplexbase, which contains 1CPU	and fault detection processing to enhance
	processor card	reliability, availability, and maintainability ofthe
	• A duplexbasewhich contains 2 CPU	protection and monitoring system.

processor cards.

Theuseof2 processor cards allows for redundancy for allthedynamic measurements; both processors haveaccess to allsignalchannels from each input module.

Theinput modules aretheinterfaceto the sensors. Each input moduletypecovers multiplesensor varieties but dueto thenumber ofsensor types therearedifferent input modules. Theinput modules condition the analog sensor signals for delivery to A/D conversion on theprocessor module. Theinput modules aresimple, reliable, analog circuitry but with a simplemicrocontroller (outsidethe protection path) to providediagnostics and fault detection on each module. Buffered transducer outputs areprovided at a multi-pin Dsub connector on each input module. An accessory cableis availableto fan thebuffered outs to BNCor ADRE 408Dspicompatible connectors.

Theoutput modules arefor monitor outputs such as relay contacts. At thecurrent timeonly the8-ChannelRelay Output Moduleis available. It contains 8programmableSPDT relays and a dedicated monitor Protection Fault (OK) Relay. Relay logic is created in the BNMCsoftwareusing thegraphicallogic editor.

Input Modules

3701 Proximitor Accelerometer Velomitor (PAV) Input Module

The3701PAV input moduleis a 6-channel+ Keyphasor/speed input modulethat interfaces to a variety ofsensors such as: -24Volt Proximitor sensors, -24Volt 3-wire Accelerometers, Velomitors, and constant current 2-wiresensors that arecompatiblewith the-24Volt 2-wireVelomitor interface.

Any ofthePAV’s sixchannels (1– 6) can be independently configured for oneofthe supported transducers. Each PAV supports one dedicated Keyphasor or speed measurement on channel7that is configurablefor Proximitor sensors or magnetic pick-ups.

3701 Proximitor Accelerometer Seismic (PAS) Input Module

The3701PAS input moduleis a 6-channel+ Keyphasor/speed input modulethat interfaces to a variety ofsensors such as: -24Volt Proximitor sensors, -24Volt 3-wire Accelerometers, 2-wireSeismoprobes and compatible3rd party inertialmass velocity sensors, or dynamic pressuresensors.

Any ofthePAS’s sixchannels (1– 6) can be independently configured for oneofthe supported transducers. Each PAS supports one dedicated Keyphasor or speed measurement on channel7that is configurablefor Proximitor sensors or magnetic pick-ups.

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3701/40ADAPTMachinery DynamicsMonitor
Datasheet	103M2037Rev. J

3701 Positive (PoV) Input Module

The3701PoV input moduleis a 6-channel+ Keyphasor/speed input modulethat interfaces to a variety ofpositively powered sensors such as: +24V Proximitor sensors, +24V Interface modules, and 2 wireIEPE sensors using 3.3 mA constant current.

Any ofthePoV's sixchannels (1-6) can be independently configured for oneofthe supported transducers. Each PoV supports onededicated negatively powered Keyphasor or speed measurement on channel7that is configurablefor Proximitor sensors or magnetic pick-ups.

ThePOV is intended for interfacing to industry standard 3rd party ICP sensors and also sensors that usea 3 wire(power, common, signal) positivevoltageinterface.

ThePOV is availablefor usewith the3701/40, 3701/44AeroderivativeGas TurbineMonitor, and 3701/46Hydro Monitor.

Output Modules

3701 8-Channel Relay Output Module

The37018-Ch Relay Output Moduleprovides 8 SPDTrelay outputs or 4"virtual" DPDToutputs and a dedicated Protection Fault relay. Relay logic is user programmablein theBNMC softwareusing thegraphicallogic editor. The processor moduleoperates on therelay logic to driverelay state.

TheProtection Fault relay is a normally energized SPDTrelay that willde-energizeon fault conditions that can compromisethe monitor’s availability to protect machinery. The protection fault relay is similar to a traditional OK relay but certain conditions that do not compromiseprotection willnot causethe Protection Fault relay to de-energize.

Therelays areconfigured for Normally DeEnergized (NDE) or Normally Energized (NE) in four banks oftwo relays each by using switches on therelay module. Therelays areset for NE for operation in thedualredundant system.

Relay wiring terminates on theoutput module using pluggableconnectors and exits on the oppositesideofthemonitor from thesensor inputs.

In dualredundant operation, processor moduleonedrives relays 1, 3, 5, and 7and processor moduletwo drives relays 2, 4, 6, and 8. Therelay alarm logic is identical. External connection to an Emergency Shutdown Device can usea 1oo2 or 2oo2 configuration depending on theuser’s needs. Users are recommended to perform a system analysis using functionalsafety methods (IEC61511, IEC 61508or ISA SP84) beforeselecting a voting scheme.

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3701/40ADAPTMachinery DynamicsMonitor
Datasheet	103M2037Rev. J

Terminal Base

3701 Simplex Terminal Bases

Theterm “simplexterminalbase”identifies, or distinguishes this typeofterminalbaseas one with a single(simplex) processor moduleas opposed to a dual(or duplex) terminalbase with two processor modules.

The3701simplexterminalbaseis themounting and installation component ofthemonitor. It supports a singleprocessor module, oneor two input modules, and an output module.

Theterminalbasemounts to a bulkhead, or enclosureor wallsub-panelusing thefour mounting holes at thecorners ofthebase.

Mount vertically for optimalconvection cooling.

3701 Dual Terminal Base

TheDualTerminalBaseis similar in function to theSimplexTerminalBaseexcept that it has two CPU processor modules instead ofone. Theextra CPU moduleallows theuser to usethe two input modules redundantly. Both CPU modules haveaccess to allthesignalchannels from each oftheinput modules.

Terminalbasefeatures:

•Two pluggableterminalblocks provide sensor wiring terminations that are individually marked for thesensor wire type. Thetermination blocks can be removed for wiring easeor maintenance work and, when installed, arefixed in placewith a locking mechanism.

•A dedicated connection terminalfor singlepoint connection to system earth.

•A singlepoint earth connection switch to separatephysical(chassis) earth from system common (instrument earth) to enablesystem common connection to an externalintrinsic safety earth.

•Primary and Secondary connectors for singleor redundant +24V DCpower input.

•Sixdiscreteinputs (DI) for dedicated dry contact DIs: Trip Multiply, Alarm/Relay Inhibit, Latch Reset, SpecialAlarm Inhibit, Run Mode, and IP/Account reset. There aretwo sets ofthesesixinputs on the dualterminalbase.

•Theterminalbasealso supports one conditioned Keyphasor/Speed output for each processor moduleand oneinput. Theconditioned I/Ois for connecting Keyphasors or Speed signals between two or more3701monitors.

Channel Types, Sensors, and

Measurements

The3701/40Machinery Dynamics Monitor supports a set ofstandard channeltypes and thecommon sensors used with thosechannel types as wellas custom configurablesensors. Support for sensor types is dependent on input moduletypeas listed in tables located below in this datasheet section. Each channeltypehas default measurements that can beenabled or disabled and each channeltypecan haveuser customizablenXand bandpass measurements added to thechanneland then customized to theapplication.

The3701/40can haveup to 12 vibration input channels (Sixper input module) and 2 Keyphasor/Sspeed inputs (oneper input module). Themonitor supports thechannel types listed here:

•Acceleration

•Dynamic Pressure

•RadialVibration

•Thrust Position

•Velocity

•Keyphasor/Speed

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3701/40ADAPTMachinery DynamicsMonitor
Datasheet	103M2037Rev. J

Table 1: Channel Type Support by Input Module

Input Module	Channel Types
PAS	Acceleration
Channels 1-6	Dynamic Pressure
	RadialVibration
	Thrust Position
	Velocity
	Proximitor Speed
PAS Channel7	Magnetic Pickup Speed
	Proximitor Speed (single
	and multi-event)
PAV	Acceleration
Channels 1-6	Dynamic Pressure
	RadialVibration
	Thrust Position
	Velocity
	Proximitor Speed
PAV Channel7	Magnetic Pickup Speed
	Proximitor Speed (single
	and multi-event)
PoV	Acceleration
Channels 1-6	Dynamic Pressure
	RadialVibration
	Thrust Position
	Velocity
PoV Channel7	Keyphasor/Speed
	(Proximitors, singleand
	multi-event or Mag
	pickup, singleand multi-
	event).

PAV and PAS channels 1– 6can also be configured to support an additionalKeyphasor input provided it is a singleevent per revolution,

less than 10,000rpm, and uses a Proximitor sensor, but cannot bedonewith PoV.

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3701/40ADAPTMachinery DynamicsMonitor
Datasheet	103M2037Rev. J

Table 2: Input Module Compatibility with Acceleration Inputs

Input	Accelerometer or Accelerometer
Module	Interface Module
PAS	155023-01High Freq 200g AccelI/F
	Module
	23733-03 AccelI/F Module
	24145-02 High-Freq AccelI/F
	Module
	330400100mV/g Accelerometer
	33042525mV/g Accelerometer
	330450High Temp Accelerometer
	350501Acceleration Charge
	Amplifier
	49578-01AccelI/F Module
	Custom
PAV	155023-01High Freq 200g AccelI/F
	Module
	23733-03 AccelI/F Module
	24145-02 High-Freq AccelI/F
	Module
	330400100mV/g Accelerometer
	33042525mV/g Accelerometer
	330450High Temp Accelerometer
	350501Acceleration Charge
	Amplifier
	49578-01AccelI/F Module
	Custom
PoV	GSI122, 124and 127Galvanic
	InterfaceUnit
	TP100Commtest Accelerometer
	TP500Commtest Accelerometer
	200350Accelerometer
	200355Accelerometer

Input	Accelerometer or Accelerometer
Module	Interface Module
	786-500Wilcoxon Accelerometer
	626B02 PCBAccelerometer
	HS-170Hansford Accelerometer
	HS-100F series Hansford
	Accelerometer
	CMSS-2100SKF Accelerometer
	351M35PCBAccelerometer

Table 3: Input Module Compatibility with Velocity Inputs

Input	Velomitors, Seismoprobes, and
Module	Interface Modules
PAS	9200Seismoprobe
	74712 HiTemp Seismoprobe
	47633 Seismoprobe
	86205BoP Seismoprobe
	Custom
PAV	330500Velomitor
	330525Velomitor XA
	190501Velomitor CT
	330750High Temp Velomitor
	330752 High Temp Velomitor
	330505Low Freq Velocity Sensor
	330530Radiation Resistant
	Velomitor
	Custom
PoV	HS-160Velocity Sensor

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3701/40ADAPTMachinery DynamicsMonitor
Datasheet	103M2037Rev. J

Table 4: Input Module Compatibility with Proximitor Sensors

Input Module	Proximitor Sensor
PAS or PAV	3300XL 8& 11mm
PoV (Keyphasor)	3300XL NSV
	3300RAMProximitor
	33005& 8mm
	330016mm HTPS
	72005, 8, 11, 14mm
	Custom

Table 5: Input Module Compatibility with Dynamic Pressure Inputs

	Input	Dynamic Pressure Sensor
	Module
	PAS	3-Wire(Com/Sig/-24VDC) 350500
		DPCA
	PAV	3-Wire(Com/Sig/-24VDC) 350500
		DPCA orPCB102M206
	PoV	2-wirePCB121A21
		2-wirePCB121A44
		2-wirePCB121A22

Measurements

Each channeltypehas a set ofdefault measurements typicalofthechanneltype. In addition, user customizablenXvectors and bandpass measurements may beadded to each channel.

Thenumber ofmeasurements that can be added and enabled depends on thesignal processing capability oftheprocessor module. Thereis no limitation, other than processor performance, to thenumber ofmeasurements that can beadded to a singlechannelor across allchannels. A performancecalculator in theBNMCsoftwareprovides feedback during theconfiguration process on performance margin as measurements areadded or removed and their attributes modified.

Measure	Configurable Attributes (1)

Accelerometer

Bandpass Fullscalerange

	Units (g’s or m/s2 peak or rms; or
	integrated accel: in/s or mm/s
	peak or rms)
	High pass corner frequency
	Low pass corner frequency
	th
	High pass filter order (1,2,4,6, or 8
	)
	Low pass filter order (1, 2, 4, 6, or
	th
	8 )
	Clamp value(amplitude)
nX	Fullscalerange
	Keyphasor association
	Integer or non-integer order in
	increments of0.1xfrom 0.1xto 100x
	(phasenot valid for non-integer
	orders).
	Units (g’s or m/s 2 peak or rms; or
	integrated accel: in/s or mm/s
	peak or rms)
	Clamp value(amplitudeand

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