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1、日立(HITACHI)SJ200变频器故障信息HitachifrequencyconverterfaultprocessingOne,E01constant-speedrunsoverthestreamThereason:1,theloadsuddenlybecomessmall,2,theoutputshortcircuit,3,1-pcbandipm-pcbconnectioncableerror,4,groundfaultMeasures:Increasefrequencyconvertexcapacity,2
2、,usevectorcontrolmodeDescription:CTdetectionTheE02deceleratedthroughthestreamThereason:1,thesuddenchangeofspeed,2,theoutputshortcircuit,3,groundfault,4,deceleratetimetooshort,5,theloadinertiaistoobig,6,thebrakingmethodisnotsuitableMeasures:Checktheoutput,2,exte
3、ndthedecelerationtime,3,usethefuzzylogictoadddeceleration,4,checkthebrakingmodeDescription:CTdetectionThird,E03acceleratesthef1owThereason:1,thesuddenchangesinload,2,outputshortcircuit,3,groundfault,adjustmentistoohigh,5,4,startfrequencytorqueincreasingtoohigh,
4、6,stuck,7,acceleratingtimeistooshort,8,connectionbetweentheinverterandmotorcableistoolongCountermeasures:,2,1,theuseofvectorcontroltorqueincrease,3,extendtheaccelerationtime,4,andincreasethecapacityoftheinverter,5,andusingthefuzzylogicfunctionofaccelerationandd
5、eceleration,6,shortenthedistancebetweentheinverterandmotor,7,debuggingA69-7015~40hz(SJ300series)rangeDescription:CTdetectionFour,E04stopstheflowThereason:1,CTdamage,2powermoduledamage,3coolingfanisstuckordamagedFive,E05overloadThereason:Theloadistooheavy,2,thee
6、lectronicheatrelaythresholdistoosmallCountermeasures:Reducingload,2,increasingfrequencyconvertercapacity,3,increasingelectronicheatrelaythreshold6,E06brakeresistanceoverloadprotectionThereason:1,theregenerativebrakingtimeistoolong,2,1-pcbandipm-pcbconnectioncab
7、leerrorCountermeasures:Thedecelerationtimeisextended,2,thecapacityofthefrequencyconverter,3,A38is00,4,increasethebrakerateSeven,E07overvoltageThereason:1,thespeedsuddenlydecreases,2,theloadsuddenlyfallsoff,3,groundfault,4,deceleratetimetooshort,5,theloadinertia
8、istoobig,6,thebrakemethodhasaproblemCountermeasures:Extendingdecelerationtime,2,increasingfrequencyconvertercapacity,3,plusbrakeunit,4,accordingtoE14failuretocheckEight,faul
