安川 培训文档-为单相输入应用选择 E7 P7 F7 变频器

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(Press*6tomuteandunmuteyourphone)QuestionsnotansweredduringtheCafécanbee-mailedtotraining@orcanbeenteredintothesurveysenttoyouattheendoftheclass.WelcometoYaskawaElectricAmerica’sTrainingCaféExpressToday’sTopicisSelectingE7/P7/F7DrivesforSingle-PhaseInputApplicationsSingle-PhasetoThree-PhaseConversionWhytheneedforsingle-phasetothree-phasepowerconversion?Areasnotoriginallydesignatedforindustrialmanufacturingwithonlysingle-phasepowersubjecttoincreaseddemandtosupportsmallmanufacturingoperationsSmallstart-upcompaniesCustommanufacturing(specialty)operationsResidential/CommercialexpansionneedingincreasedwaterdemandsRemotepumps(submersible/booster)IncreasedpumpHP(movingwaterfurtherdistances)IncreasedactivityinenergysectorOil/NaturalgaswellsDe-wateringpumpsNeedthree-phasepowertosupportincreaseddemand!Single-PhasetoThree-PhaseConversionMethodsofconvertingsingle-phasetothree-phasepower:PhaseConvertersRotaryPhaseConverters(RPC)StaticPhaseConverters(SPC)Motor-Generator(M-G)SetsVariableFrequencyDrives(VFDs)Single-PhaseinputmodelsThree-Phaseinputmodels(withappropriatederating)Single-PhasetoThree-PhaseConversionPhaseConvertersRotaryPhaseConverters(RPC)Use“idler”motortogeneratethirdphaseStaticPhaseConverters(SPC)Useinductors/capacitorstogeneratethirdphaseUnbalancedphaseimpedanceDifficulttobalancephasevoltagesespeciallywithvaryingloadRequiresde-ratingappliedmotor(byasmuchas50%)!Methodsofconvertingsingle-phasetothree-phasepower:Single-PhasetoThree-PhaseConversionMethodsofconvertingsingle-phasetothree-phasepower:Motor-Generator(M-G)SetsUsesmultiplesetsofwindingsonsinglerotortogeneratethreeindividual“new”phasesGoodvoltagebalance

suitableforthree-phasemotorsEasilyconvertvoltagelevelandfrequencyfromincomingsupplyCommutatorsrequirehighmaintenanceExpensiveandbulky

Single-PhasetoThree-PhaseConversionMethodsofconvertingsingle-phasetothree-phasepower:VariableFrequencyDrives(VFDs)Single-phaseinputmodelsThree-phaseinputmodels(withappropriatederate)Providebalancedthree-phasevoltageCaneasilyvarythevoltageandfrequencyNotuningofcapacitorstovaryingloadsSoftstartfeature,PIcontrol,extensiveflexibility/programmabilityProvidessuperiorprotectivefeatures(overload,under-voltage,etc.)Reliable/maintenance-freeoperationSingle-PhaseMotorsSingle-PhaseMotors:Readilyavailableupto5HPAvailableuptoandabove15HPbutmuchlesscommonExpensiveLongleadtimesFrequentmaintenanceTrendistousethree-phasemotors(evenbelow5HP)!Single-PhaseApplicationsCommonSingle-PhaseApplications:SubmersibleWellPumpsIrrigationPumpsFountainSystemsPumpJacks(oil/naturalgaswellpumps)MachiningCenters/LathesVacuums/Blowers

Single-PhaseInputProductsYaskawaSingle-PhaseProductOffering:VS-Mini(GPD205)115Vac,1/8HPto1HP,0.8Armsto5ArmsJ7(GPD305)–AvailablethroughMarch2010230Vac,1/8HPto2HP,0.8Armsto8ArmsV7(GPD315)–Obsolete(subjecttoinventoryon-hand)230Vac,1/8HPto5HP,0.8Armsto17.5ArmsV1000230Vac,1/8HPto5HP,0.8Armsto17.5ArmsJ1000(usecaution–outputphaselosscannotbedisabled)230Vac,1/8HPto3HP,0.8Armsto9.6Arms(ND)Single-PhaseInputProductsYaskawaSingle-PhaseProductOffering:VS-Mini(GPD205)115Vac,1/8HPto1HP,0.8Armsto5ArmsJ7(GPD305)–AvailablethroughMarch2010230Vac,1/8HPto2HP,0.8Armsto8ArmsV1000230Vac,1/8HPto5HP,0.8Armsto17.5ArmsJ1000(usecaution–outputphaselosscannotbedisabled)230Vac,1/8HPto3HP,0.8Armsto9.6Arms(ND)Single-Phasemodelsupto5HPonly!Allmodelsrun230Vthree-phasemotors!Single-PhaseInputProductsUseE7/P7/F7andthree-phasemotorwithappropriatederatingasoutlinedinapplicationnoteAN.AFD.15“ApplyingE7/P7/F7DrivesToSingle-PhaseInputApplications”WhatdoesdocumentAN.AFD.15contain?Let’stakealook!Whataboutsingle-phaseapplicationsat480Vorapplicationslargerthan5HP?Single-PhaseInputPowerApplicationSpecificationsImportantConsiderationsWhenUsingaThree-PhaseDrivewithSingle-PhaseInputDriveSpecifications(w/derating)DriveHPOutputCurrentInputCurrentDCLinkChokeSelectionInputVoltageSpecificationsDifferentthanthree-phaseOutputVoltageLimitationEffectonmotorpowerOverloadRatingLimitedtolowspeedsWiring&BranchCircuitRecommendationsDCLinkChokeDimensionsSingle-PhaseInputDriveDeratingWhyisDrivederatingrequired?Three-phaseVFDdesignedtoaccommodate300/360HzDCbusripple(3-phasefullwaverectificationat50/60Hz)

Single-PhaseInputDriveDeratingWhyisDrivederatingrequired?Single-phase60Hzinputresultsin120HzDCbusripple!DCbuscapacitorsneedtoprovidemorepowerDCbuslevelwilldecreasealargeramountthanwiththree-phaseinputduringthistimeSingle-PhaseInputDriveDeratingWhyisDrivederatingrequired?Durationbetweenbuspeaksislongerinsingle-phasecaseDcbuscircuitwillhavetosupplypowerforlongerperiodMorestressoninputandDCbuscomponentst3Tt1Timet1>t3Single-PhaseInputDriveDeratingWhyisDrivederatingrequired?Drivecomponentssubjecttogreaterstresswithsingle-phaseinputDCbuscircuit(capacitors,DClinkchoke,busbars)IncreasedripplevoltageandcurrentCapacitorsneedtodelivermoreofthepowertotheloadInputdioderectifierIncreasedinputcurrentHigherharmoniccontentUsingonly2/3rdsoftherectifierInputterminalsIncreasedinputcurrentHigherharmoniccontentUsingonly2of3inputterminalsSingle-PhaseInputDriveDeratingTherefore,deratingofDriveHPandoutputamperagewillberequiredsothattheDrivecomponentsoperatewithintheirratings!Table1containssingle-phaseratingsfor240Vand480VmodelsSelectingtheProperDriveSelectDrivethatmeetsorexceedsbothmotorHPandmotorFLArequirementsWhenmakingselectionbesuretotakeintoaccountoperationusingtheservicefactorofthemotorifrequiredbytheapplicationDrivemustbeselectedtoaccommodatemotorS.F.ampsandmotorS.F.horsepowerifapplicable!SelectingtheProperDriveSelectDrivethatmeetsorexceedsbothmotorHPandmotorFLArequirements.IncludeServiceFactorifrequired.Example: PumpRating:7.5HP,230V,20Armscont.,SFamperage23Arms

ApplicationRequirements: Case1)NoSFrequired:7.5HP@20Arms Case2)SFisrequired:8.6HP@23Arms

Note:8.6HP=7.5HPx23A/20A

SelectDriveaccordingtoloadrequirement!

SelectingtheProperDrive

Example: PumpRating:7.5HP,230V,20Armscont.,SFamperage23Arms ApplicationRequirements:

NoSFrequired:7.5HP@20Arms SFisrequired:8.6HP@23Arms

Note:8.6HP=7.5HPx23A/20A

Model2011:NoSFRequired

SelectingtheProperDrive

Example: PumpRating:7.5HP,230V,20Armscont.,SFamperage23Arms ApplicationRequirements:

Case1)

NoSFrequired:7.5HP@20Arms Case2)SFisrequired:8.6HP@23Arms

Note:8.6HP=7.5HPx23A/20A

Model2011:NoSFRequired

SelectingtheProperDrive

Example: PumpRating:7.5HP,230V,20Armscont.,SFamperage23Arms ApplicationRequirements: Case1)NoSFrequired:7.5HP@20Arms

Case2)SFisrequired:8.6HP@23Arms

Note:8.6HP=7.5HPx23A/20A

Model2015:SFisrequiredSelectingtheProperDrive

Example: PumpRating:7.5HP,230V,20Armscont.,SFamperage23Arms ApplicationRequirements: Case1)NoSFrequired:7.5HP@20Arms

Case2)SFisrequired:8.6HP@23Arms

Note:8.6HP=7.5HPx23A/20A

Model2015:SFisrequiredSelectingtheProperDriveSelectDrivethatmeetsorexceedsbothmotorHPandmotorFLArequirementsDrivemustbeselectedtoaccommodatemotorS.F.ampsandmotorS.F.horsepowerifapplicable!DCLinkChokeBenefitsUsingaDCLinkChokeallowsustopullmorepowerfromtheVFDReducesDCbusrippleLowersinputharmonics(fromover100%to90%ITHD)Improvesinputpowerfactor(toapprox.0.7PF)reducesinputcurrentDCLinkChokesarelistedinTable1LinkChokesselectedtooptimizeperformanceforsingle-phaseuseNote:Models18kWandsmalleruseadifferentlinkchokethanwhatisnormallyusedwiththree-phaseinputSelectDClinkchokeaccordingtoTable1Caution-DClinkchokesareopenstyle(noenclosure)Therefore,DCLinkChokesmustalwaysbeused!DCLinkChokeBenefitsInputVoltageandFrequencyInputSupplySpecifications:StandardVFDspecificationswiththree-phaseinput:208-240/480Vac,+10/-15%50/60Hz,+/-5%VFDSpecificationswithsingle-phaseinput:240/480Vac,+10/-5%60Hz,+/-5%Thus,strictinputvoltagetoleranceof+10to-5%and60Hzapplieswithsingle-phaseuse!Note:WireinputusingterminalsL1(R)andL2(S)toaccommodateunitsthatincorporateACfansandsoft-chargecircuits(largermodels)InputVoltageandFrequencyWhythestricterinputvoltagetolerance?Averagebusvoltageislowerwithsingle-phaseinputthanwithequivalentthree-phaseinputTherefore,outputmotorvoltagewillbereducedMotorpowerwillbereducedwithlowermotorvoltageOutputvoltageof207Vwithinputvoltageof228V(240V–5%)Outputvoltageof414Vwithinputvoltageof456V(480V–5%)Considerusinga208Vor400Vmotorifratedpowermustbedevelopedatbasespeedtoeliminatetheeffectofvoltagedeprivation!208Vand400VmotorselectionsareincludedinTable1Note:AdditionalimpedanceattheinputoftheDrivewillcauseadditionalvoltagedrop!ReducedVoltageMotorsInputVoltageandFrequencyInputSupplySpecifications:StandardVFDspecificationswiththree-phaseinput:208-240/480Vac,+10/-15%50/60Hz,+/-5%VFDSpecificationswithsingle-phaseinput:240/480Vac,+10/-5%60Hz,+/-5%Thus,strictinputvoltageof240V(480Vac)+10to-5%at60Hzapplieswithsingle-phaseuse!Note:WireinputusingterminalsL1(R)andL2(S)toaccommodateunitsthatincorporateACfansandsoft-chargecircuitsSingle-PhaseInputCurrentDriveinputcurrentwillbeapproximatelytwicethemotorcurrentSingle-phasetothree-phaseconversionaccountsformajorityofinputcurrentincrease(factor√

3)OverallinputPowerFactorof0.7canbeexpectedInputcurrentisincludedinTable1OverloadCapacityOverloadcapacitywithsingle-phaseinputislimitedto120%ofDrivesingle-phasecurrentratingIncreasedDCbusripplemeanstheDCbuslevelwilldroptolowerlevelAsoutputpowerincreases(hightorqueandhighspeed)averagebusvoltagedecreasesMotorvoltagefurtherdecreasesasloadincreasesTherefore,expect120%overloadmaximumforstartingpurposesonly!Consultfactorywithcyclicapplications(repeatingoverload)orwhenoverloadinexcessof120%isrequiredE7/P7/F7DriveswithSingle-PhaseInputDocumentAN.AFD.15alsoincludeswiringandbranchcircuitrecommendationsTable2contains:WiregaugerecommendationsFuserecommendationsCircuitBreakerrecommendationsDCLinkChokeDetailsTable3containsDCLinkChokedimensionsDCLinkChokesare“open”type(noenclosure)DCLinkChokesinTable3aredifferentfromchokesusedforthree-phaseinputWireDCLinkChokestoterminals+1and+2(removefactorysuppliedshortingbar)Single-PhaseInputSpecificationSummarySummary:InputSpecifications:Voltage:240/480VAC+10%/-5%,Frequency:60Hz+/-5%DriveRatingsmustmeetorexceedbothmotorHPandFLABesuretoincludeServiceFactoroperationifrequiredDCLinkChokesarerequiredonmodels18kWandsmallerConsultfactoryifLinkChokescannotbeusedMaximumOverloadof120%forstartingpurposesonlyExpectmotorvoltageofapprox.207Vac(414Vac)withinputvoltageof228Vac(456Vac)Considerareducedvoltagemotor(208/