伊萨LAF焊机PEH维修手册

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1、A2-A6ProcessControllerPEH104专业维修伊萨焊接设备及线路板伊萨中国区域维修中心周工：esab_cn@163.comServicemanual07408011062005--04--12Validformachineno220XXX--XXXXValidforprogramversionPEH4.0,PEH4.01andPEH4.2,PEH4.31READTHISFIRST..................................................41.1General.....................

2、.............................................41.2Softwareversions.........................................................52SAFETY...........................................................93COMPONENTDESCRIPTION.......................................114CONNECTIONDIAGRAM............

3、...............................125COMPONENTPOSITIONSONCIRCUITBOARDAP2..................146COMPONENTPOSITIONSONCIRCUITBOARDAP1..................157FUNCTIONDESCRIPTION(CIRCUITBOARD)........................167.1General..................................................................1

4、67.2NME(AP2)..............................................................167.3DCDUO(AP1)...........................................................178TESTPOINTS......................................................188.1Testingtheexternalpowersupply(fromtheweldingpowersource)......

5、.........188.2Testingtheinternalpowersupplyvoltages....................................188.3Checkingthattheprogramisrunning.........................................198.4CheckingNO.1outputstage................................................198.5CheckingNO.2outputstage..............

6、..................................198.6Gasvalveoutputcontrol....................................................198.7Measuringthemotorcurrent................................................199INSTALLATION....................................................209.1General..............

7、....................................................209.2Internalconnections.......................................................209.3Externalconnections.......................................................219.4AdjustingtheDCDUO..................................................

8、...239.5NMEconnection.....