Table of contentsTechnical dataFastmig KM / MF............................................................................. 3FastMig KMS / MFS........................................................................ 4Fastmig KMS / MVU........................................................................ 5Main circuit diagramKM.................................................................................................... 6-7MF.................................................................................................... 8KMS................................................................................................. 9MSF................................................................................................. 10KM / MVU........................................................................................ 11KMS / MVU..................................................................................... 12Block diagram.................................................................................................... 13Main circuit card Z001 KM / KMSOperating diagram........................................................................... 14Operation principle.......................................................................... 15Connectors...................................................................................... 16Operational measurings.................................................................. 17Capacitor card Z002Operating diagram.......................................................................... 18Connectors..................................................................................... 18Secondary rectifier card Z003Operating diagram.......................................................................... 19Connectors..................................................................................... 19Operational measurings................................................................. 19Control card A001Operating diagram.......................................................................... 20Connectors..................................................................................... 21-22Operation of the LEDs on control card........................................... 22Motor control card A002Operating diagram.......................................................................... 23Connectors..................................................................................... 24ID-chip card A002 (MSF)Connectors..................................................................................... 25Panel card P001Operating diagram.......................................................................... 26Connectors..................................................................................... 26Error codes........................................................................................................ 27Setup menu....................................................................................................... 28Wire feed speed calibration / KM.................................................................... 29-30StructureKM / KMS....................................................................................... 31-32MF.................................................................................................. 33MFS................................................................................................ 34IGBT testing....................................................................................................... 35IGBT replacing................................................................................................... 362