VT-VSPA2-1-2X-英文说明书

RA30110/06.05replaces:10.04ElectricDrivesandControlsHydraulicsLinearMotionandAssemblyTechnologiesPneumaticsServiceAnalogamplifiercardModelVT-VSPA2-1-2X/...Series2XFeatures1Orderingdetails,accessories2Function3Blockcircuitdiagramandconnectionallocation4and5Technicaldata6and7Characteristiccurves7Displayandadjustmentelements8and9Unitdimension10Engineering/maintenanceguidelines,additionalinformation10H/A/D6641/001/10TableofcontentsFeaturesContentsPage–Suitableforcontrollingvalvetypes4WRAnominalsizes6and10,series2XandWRZseries7X–Built-upintheformofaboardintheEuro-format100x160mmandissuitableformountingintoarack–Commandvalueinputs:•Differentialinput±10V•Fourcommandvalueinputs,±10Vthatcanbecalledup•Currentinput4to20mA–Invertingtheinternalcommandvaluesignalviathe24Vinputorjumper–Selectingtheramptimeviaquadrantalrecognition(24Vinput)orramptimecall-ups(24Vinputs)(optionT5)–Switchingovertheramptimerangeviajumpers–Characteristiccurvecorrectionbyseparatelyadjustablejumpheightsandmaximumvalues–Enableinput–”Rampon/off“input–Outputsignal”operational“–Switchablemeasuringsocket(optionT5)–Polarityprotectionforthesupplyvoltage–PowersupplywithDC/DCconvertorwithoutaraisedzeropoint2/10BoschRexrothCorp.|IndustrialHydraulicsModelVT-VSPA2-1-2X|RA30110/06.05OrderingdetailsAnalogueamplifierinEurocardformatForcontrollingvalvetypes:4WRA6–2X;4WRA10–2X;4WRZ–7X=1Series20to29(20to29unchangedtechnicaldataandconnectionalallocation=2XFurtherdetailsincleartext1)T1=WithoneramptimeT5=WithfiveramptimesBasicversionVT-VSPA212XV0*1)E.g.OutputstagemonitoringorcommandvaluereachedsignalonrequestSuitablecardholders:–19“racktypesVT19101,VT19102,VT19103andVT19110(seeRE29768)–EnclosedcardholdertypeVT12302(seeRE30103)withuseofablindplate4TE/3HE(materialno.R900021004)–OpencardholdertypeVT3002-2X/48F(seeRE29928)Onlyforinstallationincontrolcabinet!Suitablepowersupplyunit:–TypeVT-NE30-2X,seeRE29929Compactpowersupplyunit115/230VAC→24VDC,108VARA30110/06.05|ModelVT-VSPA2-1-2XIndustrialHydraulics|BoschRexrothCorp.3/10FunctionPowersupply[1]Theamplifiercardhasapowersupplywithaninrushcurrentlimiter.Thissuppliesalloftheinternalpositiveandnegativesup-plyvoltages.Theinrushcurrentlimiterpreventsinrushcurrentpeakscausedbythesmoothingcapacitorsinthecurrentoutputstage.AppliedcommandvalueTheinternalcommandvaluesignalisformedfromthesumoftheexternalcommandvaluebeingappliedtothedifferentialinput[2]andthecommandvaluesbeingappliedtothesummator[6]andtherampgenerator.Thefollowingisvalid:StandardvalueCurrentinputDifferentialinputCom.valuesocketFlowdirection–100%4mA–10V–10VPtoB,AtoT0%12mA0V0V100%20mA10V10VPtoA,BtoT0%1mA1)0V1)Ifthecurrentinputisnotswitchedorwithcurrentcom-mandvalueacablebreakresultsinaninternalcom-mandvaluesignal0%.Noswitchingtakesplacebetweenthecurrentandvoltageinputs.Theinputsarepermanentlyavailable(seepinallocation).Commandvaluecall-ups[4]Fourcommandvaluesignals„w1“to„w4“canbecalled-up.Theexternalcommandvaluevoltages(commandvalues1to4)areeitherdirectlyappliedviathecontrolledvoltageoutputs+10Vand–10Vorviaanexternalpotentiometer.Ifthecommandvalueinutsaredirectlyappliedtothecontrolledvolata-gesthenthesettingsaredoneonpotentiometers„w1“to„w4“.Whenusingexternalpotentiometersthentheinternalpotentiome-tersactasattenuatatorsorlimiters.Onlyonecall-upatthesametimeispossible.Ifmorethanonecall-upisactivatedatthesametimethencall-up„1“hasthelo-werstpriorityandcall-up„4“thehighestpriority.Theactivecall-upisdisplayedviaayellowLEDonthefrontplate.Commandvalueinversion[7]Theinternallygeneratedcommandvaluewhichisformedfromtheinputsignals,commandvaluecall-upsandzeropointoff-setsignalcanbeinvertedbymeansofanexternalsignalorviajumperJ1.TheinversionisdisplayedviaaLED(„–1“)onthefrontplate.Enablefunction[8]Withtheenablefunctionthecurrentoutputstagesarereleasedandtheinternalcommandvaluesignalisswitchedtotherampgenerator.TheenablesignalisdisplayedonthefrontpanelbymeansofaLED.Iftheenableiswithdrawn,theinternalcommandvalue(withanappliedcommandvalue)changeswiththesetramptime.Thevalvebeingcontrolledthereforedoesnotopensuddenly.Rampgenerator[9]Therampgeneratorlimitstherateofadjustmentvariableincrease.Thesubsiqentjumpfunctionsandamplitudeattenuationarenotlengthedorshortenedbytheramptime.Witharamp”on/off“signalormitwithjumperJ2theramptimeissettoaminimum(2ms)(rampoff).ExternalramptimeadjustmentWithanexternalpotentiometeritispossibletolengthenthein-ternallysetramptime.Thesettingcanbecheckedwiththeaidofthemeasuringsocket.Inthecaseofacablebreaktheinternalsettingisautomaticallyvalid.Characteristiccurvegenerator[10]Withtheadjustablecharacteristiccurvegeneratoritispossibletoseparatelyadjustthemaximumvaluesforthepositiveandnegativesignalssothattheycanbematchedtosuitthehydraulicrequirements.theactualmovementofthecharacteristiccurvethroughthezeropointisnotintheformofajumpbutislinear.Amplitudelimiter[11]Theinternalcommandvalueislimitedtoapprox.±110%ofthenominalrange.Clockgenerator[13]Theclockgeneratorproducestheclockfrequencyfortheoutputstages.Theclocksignalcanbeswitched,viaajumper,intooneofthreebasicfrequency