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外文翻译--XM-120及121动态测量模块.doc外文翻译--XM-120及121动态测量模块.doc -- 5 元

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附录二英文文献XM120121DYNAMICMEASUREMENTMODULESTheawardwinningAllenBradleyXM®Seriesistheworldsfirstmachinemonitoringandprotectionsystemdesignedasadistributednetworkofmodulesdeployedonanopenstandardindustrialbus.TheXM120StandardandtheXM121LowFrequencyDynamicMeasurementModulesareintelligent2channelgeneralpurposemonitorsthatsupportmeasurementsofdynamicinputssuchasvibration,pressureandstrain.Themodulesbuiltintachometermakesthemparticularlywellsuitedformonitoringshaft,casingandpedestalvibrationinrotatingequipment.ThetwomodulesareidenticalexceptfortheirhighpassfilterselectionsandinthattheXM120alsosupportsshafteccentricitymonitoringwhenitsalternateXM120Efirmwareisloaded.Inputsacceptedincludeeddycurrentprobe,standardintegratedElectronicsPiezoElectricIEPEaccelerometer,oranyvoltageoutputmeasurementdevicesuchasavelocityorpressuretransducer.Inadditiontovibrationinputs,themodulesacceptonetachometerinputtoprovidespeedmeasurementandorderanalysisfunctions.Bothmodulesemploya24bitA/Dconverterwhichprovidesunparalleledresolution,makingthemideallysuitedfordetectingmachineryproblems.VirtuallyanyfaultthatmanifestsitselfthroughchangesinthemagnitudeorphaseofvibrationcanbedetectedbytheadvancedsignalprocessingcapabilitiesoftheXM120XM121DynamicMeasurementmodules.Theseincludemostmechanicalandelectricallyinducedfaultssuchasunbalance,bearingwear,rotorcracksandrubs,instabilitiessuchasoilwhirl,preloadconditions/misalignmentandantifrictionbearingdefects.Withtwo420mAoutputsandasingleonboardrelay,expandabletofive,andanintegraltachometer,theXM120andXM121modulesofferacompletemonitoringsysteminasmall,simple,easilyinstalled,easilymaintainedpackage.TheXM120andXM121modulescanoperatestandalone,withnointerfacetohigherlevelcontrolsystemsorinteractiveuserinterfaces.TheycanalsobedeployedonastandardordedicatedDeviceNetnetworkwheretheycanproviderealtimedataandstatusinformationtootherXMmodules,PLCs,DCSandConditionMonitoringSystems.ConfigurationcanbeperformedeitherlocallyorremotelyviatheDeviceNetnetwork.Localconfigurationisprovidedbyasimple,intuitiveSerialConfigurationUtilityexecutingonaPCconnectedtothemodulesserialcommunicationsport.RemoteconfigurationcanbeperformedfromanynetworkedPCexecutingeitheranystandardDeviceNetconfigurationsoftware,ortheXMspecificconfigurationtoolincludedinRSIsRSMACCEOLsoftwaresystem.Selectingwhichmodule,theXM120orXM121,isappropriateforanapplicationisdependentonconsiderationoftheminimumfrequencyofinterest,thetypesofsensorsappliedandanyintegrationrequirements.Typicallytheminimumfrequencyofinterestwillbeaboutonethirdthenormaloperatingspeedofthemachine,unlessitisimportanttomonitorthemachinesbehaviorduringstartuporcoastdown.Whenmeasuringlowfrequencyvibrationitisessentialthatthesensorusedberatedbelowtheminimumfrequencyofinterest.Otherwisethesensormayintroducesignificantnoisepossiblyresultinginerroneous,ormisleading,data.Andifthesignalmustbeintegratedthenspecialattentiontothesensorqualityandhighpassfilterselectionmustbemadetoinsuretheminimumofnoiseintroducedtothesystemasonlyasmallamountofnoise,atlowfrequencies,canresultinadramaticreductioninthequalityandcapabilityofintegratedmeasurements.CommunicationsDeviceNetStandardDeviceNetprotocolforallfunctionsAvailableElectronicDataSheetEDSfileprovidessupportbymostDeviceNetcompliantsystemsAutobaudto125kb,250kbor500kbConfigurableI/OPollResponsesizebytesandAssembly6tochoosefromhelpsoptimizespaceutilizationwithinusersscannerinputtablesNoteTheXM120/121usesonlytheDeviceNetprotocol,notpower.Modulepowerisprovidedindependently.SideConnectorAllXMmeasurementandrelaymodulesincludesideconnectorsthatallowinterconnectingadjacentmodulestherebysimplifyingtheexternalwiringrequirements.TheInterconnectprovidesprimarypower,DeviceNetcommunicationandthecircuitsnecessarytosupportexpansionmodulessuchastheXM441ExpansionRelaymodule.SerialLocalconfigurationviaSerialUtilityProgramRS232viaminiconnectororterminalblockBaudrateautobaudto19200Tachometer1TachometerInputs±25V50VmaxpeaktopeakInputImpedance120kohmsminimumSpeed/FrequencyRange1to1,200,000RPM0.0167to20,000HzSpeedMeasurementError1to12,000RPM/1RPM12,001to120,000RPM/6RPM120,001to1,200,000RPM/50RPMPulsesperRevolution0tachoffto50,000Inputs2ChannelsofEddycurrenttransducersignalsAccelerometersignalsVoltagesignalsfromanydynamicmeasurementdevice,suchasavelocityorpressuretransducerTransducerPowerConstantvoltage24VdcConstantcurrent4.5mA±20from24VdcNonevoltageinputTachometermaybepowered,constantvoltage,orconfiguredasvoltageinputVoltageRangeSelectableinsoftwareas0to±20Vmin40Vmax.peaktopeakSensitivityUserconfigurableInputImpedance100kOutputs420mAOutputsEachoutputisindependentlyprogrammedtorepresentspeedoracceleration,fromeitherchannel2isolatedoutputs300ohmmaxloadBufferedOutputs1activebufferperinputchannelResistivebufferfortachometerIndicators7LEDsModuleStatusred/greenNetworkStatusred/greenChannel1Statusoff/yellow/redChannel2Statusoff/yellow/redTachometerStatusoff/yellow/redSetpointMultiplieroff/yellowRelayoff/redSignalConditioningSamplingModesAsynchronousSynchronousFrequencyrange1Hzto20kHzResolutionA/DConversion24bitsDynamicRange80dBfs0.01fs,90dBfstypicalFFTLines/Waveformblocksize–100/256–200/512–400/1024–800/2048AmplituderangeDependentonsensitivityIntegrationTwolevelsprovided,firstinhardware,secondinfirmwareAveragingAnynumberofaveragesmaybespecified.IfsamplingmodeisAsynchronousAveragingwillbedoneonthespectra.SynchronousAveragingwillbeperformedonthetimewaveformsLowPassFiltersIndependentlyconfiguredperchannelSpectraFMAX10Hz20kHzOptionalOverallmeasurementLPfilter200Hz20kHzRollOff24dBperoctaveHighPassFiltersIndependentlyconfiguredperchannelXM120IntegrationOFF1,5,10,40,1000HzRollOff30dBperoctaveforthe1HzHPF,otherwise24dBperoctaveIntegrationON5,10,40,1000HzRollOff–SingleIntegration30dBperoctaveforthe5HzHPF,otherwise24dBperoctave–DoubleIntegration42dBperoctaveforthe5HzHPF,otherwise24dBperoctaveXM121IntegrationOFF0.2,0.8,2,4,23.8HzRollOff30dBperoctaveforthe0.2HzHPF,otherwise24dBperoctaveIntegrationON0.8,2,4,23.8HzRollOff–SingleIntegration30dBperoctaveforthe0.8HzHPF,otherwise24dBperoctave–DoubleIntegration42dBperoctaveforthe0.8HzHPF,otherwise24dBperoctaveUnitsgvoltmilsummm/sPaipspsiComplexDataSpectrasynchronousorasynchronousTimeWaveformsynchronousorasynchronousSimultaneousTimeWaveformssynchronousDataBufferTrendBufferStoresasetofrecordscontainingmeasuredparametersinresponsetoatriggereventTrendRecord1to16parametersTrendInterval1to3600secondsTriggerThetrendissavedwhenaspecifiedrelayactuates,oroncommandfromanXM440,hostorcontrollerCapacity170to2048recordsdependingonthenumberofparametersstoredTripSpectraorTimeWaveformThecurrenttimewaveformsorspectraaresaveduponthesametriggereventdefinedfortheTrendBufferabove.SpeedBufferStoresastartup/coastdowntrendofmeasurementparametersinresponsetochangesinspeedSu/CdRecord1to16parametersSu/CdInterval1to3600RPMTriggerRecordsaresampledwhilespeedisbetweenuserspecifiedminimumandmaximumvaluesSampledwhilespeedisincreasingonlyduringstartup.
编号:201311171519536788    大小:100.00KB    格式:DOC    上传时间:2013-11-17
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