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1、变频器基本参数的调试（Basicparametersdebuggingoffrequencyconverter）AccelerationanddecelerationtimeAccelerationtimeisthetimerequiredtoincreasetheoutputfrequencyfrom0tothemaximumfrequency.Thedecelerationtimeisthetimerequiredtodecreasefromthemaximumfrequencyto0.Theaccelerationanddecelerationt
2、imeisusuallydeterminedbytheriseandfallofthefrequencysettingsignal.Inmotoracceleration,therateofriseinfrequencysettingshallbelimitedtopreventexcessivecurrent,andtherateofdescentislimitedtopreventovervoltageduringdeceleration.Theaccelerationtimesettingrequirements:currentlimitbelo
3、wthefrequencychangercurrentcapacitywillaccelerate,nottoflowstallcausedbyconvertertripping;decelerationtimesetpointsare:topreventsmoothingcircuitvoltageistoolarge,theregenerationoftheinvertertrippingovervoltagestalling.Decelerationtimecanbecalculatedaccordingtotheload,butindebugg
4、ingoftenadoptedbytheloadandtheexperienceofthefirstsetlongerdecelerationtime,bystartingandstoppingmotorwereobservedovercurrentandovervoltagealarm;thenthespeedsettingtimegraduallyshortened,withthealarmdoesnotoccurinoperationprinciple,repeatedseveraltimes,wecandeterminethebestdecel
5、erationtime.TwotorqueboostAlsocalledtorquecompensation,inordertocompensateforthemotorstatorwindingresistancecausedbylow-speedtorquereduction,andthelowfrequencyrangef/Vincreasedmethod.Whentheutilitymodelissetasanautomatic,thevoltageintheaccelerationcanbeautomaticallyraisedtocompe
6、nsatethestartingtorque,andthemotorcanbeacceleratedsmoothly.Ifmanualcompensationisadopted,accordingtotheloadcharacteristics,especiallythestartingcharacteristicsoftheload,thebettercurvecanbeselectedthroughthetest.Forvariabletorqueload,suchasimproperselection,theoutputvoltageistooh
7、ighatlowspeed,whilethephenomenonofwasteofelectricity,andeventheemergenceofmotorloadwithalargecurrent,whilethespeeddoesnotgo.ThreeelectronicthermaloverloadprotectionThisfunctionistoprotectthemotoroverheatingandsetup,itisthefrequencyconverterCPU,accordingtotheoperationcurrentvalue
8、andfrequencytocalculatethetemperatureriseofthem
