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1、部分电梯调试过程问题描述和处理方法（Partoftheelevatordebuggingprocessproblemdescriptionandprocessingmethods）1questionDescription:Elevatormaintenanceoperationafteraperiodoftimewillbeprotected?Problemanalysis:motherboardcheck,faultcodeisNo.9,checktheinverternodatasetexception,andtheoccurrenceoftimeisfixedT
2、osolvetheproblem:checkthemotherboardrepairfeedbackspeedisonly0.11M/S,andsettheinspectionspeedis0.25M/S.towatch12.11HZ.U1-02display5.23HZ.converterU1-01displayU1-03display45A.U1-01outputfrequencyshouldbeconsistentwiththefeedbackfrequencyofU1-02,butnowisnotthesame,thatthereareproblems.The
3、nchecktheencoderwiringiscorrect,trytochangetheABphase,U1-01theoutputfrequencyandthefeedbackfrequencyU1-02consistent.TheproblemintheABencoderinstead.2questionDescription:elevatorautomaticstatuscannotbeclosed?Problemanalysis:motherboardcheck,nofaultcode.Checkswitchdoorinplaceandsafetytouc
4、hswitchsetnormalProblemsolving:afterchecking,itisfoundthatthemotherboardTX14issettonormallyclosed,changedtonormallyopen,andtheproblemsolved3ProblemDescription:Elevatorself-learningafternormaloperation,runseveraltimesafterliftfrequentDEVorDV3fault(YaskawainverterisIP)?Problemanalysis:acc
5、ordingtotheinstructionsofthefaultshouldbeintheYaskawainverterencoderfeedback.Problemsolving:afterthehosthasbeenlearning,theproblemremainsthesame.Intheinspection,itisfoundthattheencoderisnotfixed,whichresultsinthephenomenonofpulsedroppingintheoperation.Afteragoodencoder,theproblemissolve
6、dafterthehosthasbeenlearning4questionsDescription:Elevatorholddownisuplink,motherboardspeedisshownasnegativedownlinkinstructions.Pressdownuplinkisdown,motherboardspeedisshownaspositiveuplinkrefersto(synchronousmotor)Problemanalysis:becausethesynchronouspositionisfixedinthepole,thethree-
7、phaseUVWofthemotorcannotbereplaced.Problemsolving:suchascenecanchangetheoutputofthemainboardtotheinverter,theuplinkanddownlinkinstructions(SM-01-FJP10.4uplink,JP10.5downlink),andthentheencoderfeedbacktothemotherboardwhilechanging,OK5ProblemDescription:becausenosynchronousconver
