G025 E-BM-AC型电子放大器

Atosspa21018SestoCalende,Italy-Fax[phone]ElectronicdriverstypeE-BM-AC-Fastplug-inforsingleanddoublesolenoidproportionalvalveswithouttransducerTableG025-1/EE-BM-ACelectronicdriverssupplysin-gleanddoublesolenoidproportionalvalvestypeZO-Awiththecorrectcur-rentsignaltoalignthevalveregulationtothereferencesignal.Theyaredesignedtoworkinopenorclosedloopsystems,accordingtotheblockdiagramofsection.Thedriveroperatesthevalve’sregula-tionproportionallytotheinputreferen-cesignal(voltage)supplyingaswit-chingcurrenttothesolenoid.ScaleandBiasadjustments,foraccuratevalveregulationareavailableonfrontpanel.Thedriverisnormallyusedwitharefe-rencesignalsuppliedbyanexternalset-pointpotentiometerorbyPLCcon-trolunitandasymmetricalrisinganddecreasingrampgenerator.Thisdriverissuppliedalreadyset,cou-pledwiththesuitableproportionalvalve,optimisingitsregulation.Theelectroniccardisinsertedinanaluminiumbox(DIN43700modularunit)withUNDECALconnectingsocketandfixingspring.TheelectronicdrivercanbemountedonbackpanelDINguideoronfrontpanel(figure,).Thisnewversionincludesthefollowingimprovedfeatures:-powersupplyis24VDCor12VDC-electronicfiltersoninputandoutputlines;-CEmarkinggrantingtheconformitytotheEMCDirective(ElectromagneticCompatibility)E-BME-BM=electroniccardFastplug-informatAC=driverforopenloopapplication01F=forsinglesolenoidproportionalvalves011F=fortwosinglesolenoidproportionalvalves05F=fordoublesolenoidproportionalvalvesNotes:-thereferenceR2mustbesuppliedonlyforE-BM-AC-011F-withtheversion011Fitispossibletoregulatetwo-singlesolenoid-proportionalvalvesalsocontemporaryOptions:-=standardsymmetricalramp/RR=withadjustabledissymmetricalrampsDesignnumber-=24VDCpowersupply/12=12VDCpowersupply(see4.1)setcode(see4.3)AC–**01F/*–1MODELCODE2BLOCKDIAGRAMG025–USERFUNCTIONSANDCONTROLOPTIONSUSERINTERFACESUPPLY24VREFERENCESIGNALR1REFERENCESIGNALR2COILS1SUPPLYCOILS2SUPPLYOUTPUTSINPUTSRAMPGENERATORDEADBANDADJUSTSCALEADJUSTMENTRAMPGENERATORDEADBANDADJUSTSCALEADJUSTMENTPOTENTIOMETERMAINCONTROLELECTRONICSORAXISCARDELECTRONICDRIVERE-BM-AC-0*F(*)RAMPRAMPDEADBANDSCALECURRENTAMPLIFIERDEADBANDSCALECURRENTAMPLIFIERREFERENCER1REFERENCER2(*)dottedlineforE-BM-AC-011FandE-BM-AC-05FTRANSDUCERACTUATORFEEDBACKPROPORTIONALVALVEDRIVINGCURRENTDRIVINGCURRENTFLOWPRESSUREPOSITIONSPEEDACCELERATIONFORCEACTUATOR284.1PowersupplyandwiringThepowersupplymustbeappropriatelystabilizedorrectifiedandfiltered.Ifthepowersup-plyisgeneratedbyasinglephaserectifierusea10000µF/40Vcapacitor;ifpulsevoltageisgeneratedbyathreephaserectifier,connecta4700µF/40Vcapacitor(seeWiringblockdiagram).Itisalwaysrecommendedtouseshieldedcableswithearthedshieldforconnec-tionstothereferencegenerators.Thedriverisdesignedtocorrectlyworkwith24VDC(±20%)or12VDC(±20%)nominalvoltagesupplycoupledwithcoilshavingaresistancefrom2,0Ωto13,4Ω,seebelow:4.2ReferencesignalTheelectronicdriverisdesignedtoreceiveavoltagereferencesignalaccordingtothefol-lowingoptions:–potentiometersmountedexternallyandwiredaccordingtotheapplicationdiagramsoffig..–externalreferencesignalsgeneratedbyPLC,seeand.4.3AdjustmentsBasiccalibrationoftheelectronicdriverisfactorypre-set,accordingtotheproportionalvalveithastobecoupledwith.Thesepre-calibrationsareidentifiedbyastandardnumberinthemodelcodeasfollows:1=RZGO2=RZMO,AG*ZO,LI*ZO3=DHZO,DKZO4=DPZO-A-*5,DPZO-A-*76=QV*ZO,LIQZOForex-proofvalves,insertan“A”beforethecodeofadjustment.Forexample,thecodeofadjustmentforRZGAisA1.SeetableE1204.4Calibrationsavailabletotheuser,see,,.–ScaleTherelationbetweendrivingcurrentandreferencesignalcanberegulatedwiththeScaleadjustment.Forsinglesolenoidvalveswithtwoexternaloperatingpositions,thereferencesignalis±5V.SeparateScalepotentiometersP3andP4forsolenoidsS1andS2enabletheelectroniccardtobesetfordifferentoutputcurrents,obtainingdifferentialhydraulicoperations.–Bias(deadband)Regulationofdeadbandadjuststhehydrauliczeroofthevalve(startingpositionadjust-ment)toaminimumsignalof200mV.Theelectroniccardisfactorypre-setforthevalveitiscoupledwith,accordingtothesetcode(seesection4.3).E-BM-AC-05F/*driverfordoublesolenoidareequippedwithaninternalchannelselectorenablingtherelevantchannelwithinputreferencevoltagesignalgreaterthan±200mVandsupplyingthebiascurrentsetbyfrontpanelBiaspotentiomentersP1andP2foreachsolenoid.–Rampssee,.Theinternalrampgeneratorcircuitconvertsastepinputsignalintoaslowlyincreasingoutputsignal(solenoidcurrent).Therise/falltimeofthecurrentissetviapotentiometersonfrontpaneluptoamax.timeof10sec.for0-100%ofreferencesignal.Theoption/RRallowsupanddowndyssymetricalrampsforeachsolenoid.Nominalpowersupply24VDC12VDC(1)StandardcouplingCodeofthevalvevalve*ZMO,*ZGO,*ZO-A-*(1)*ZMA,*ZGA,*ZO-A-*(1)*ZMO,*ZGO,*ZO-A-*/18*ZMO,*ZGO,*ZO-A-*/63,23,213,42,1ResistanceR20C°[Ω]PowersupplyNominal:24VDCor12VDC(see4.1)(positiveoncontact11,negativeoncontact1)Rectifiedandfiltered:VRMS=21÷33(ripplemaxpeaktopeak=±20%)Max.powerconsumption40WImax=3,3AtypePWMsquarewave(withsolenoidtypeZO-Awithresistance3,2Ω)Imax=2,5AtypePWMsquarewave(withexplosion-proofsolenoidwithresistance3,2Ω)E-BM-AC-01FR10÷+5Vatcontact3(G