ESAB Origo Mig L3000i Service Manual page 4

TABLE OF CONTENTS
7.3 Fault code description ...........................................................................
7.3.1 Power source .......................................................................................
7.3.2 AC unit..................................................................................................
7.3.3 Wire feed unit .......................................................................................
8 SERVICE INSTRUCTIONS.......................................................................
8.1 What is ESD? ..........................................................................................
8.2 Service aid ..............................................................................................
8.3 Special tools ...........................................................................................
8.4 Checking power board 15AP1...............................................................
8.5 Checking secondary board 15AP2 .......................................................
8.6 Checking the IGBT modules of AC power board 18AP2 ....................
8.7 Checking the gate signals to AC power board 18AP2 ........................
8.8 Soft starting ............................................................................................
8.9 Mounting components on the heat sink...............................................
8.9.1 Thermal paste ......................................................................................
8.9.2 Rectifier bridge 2BR1 ...........................................................................
8.9.3 Power board 15AP1 with semicunductor modules ...............................
8.9.4 Diode modules 15D1, 15D2 and secondary board 15AP2...................
8.9.5 AC power board 18AP2 with IGBT modules ........................................
8.10 Calibrating the current sensor signal...................................................
8.11 MIG machines, calibration of the arc voltage feedback ..................... 100
8.12 DC TIG machines, calibration of the arc voltage feedback ................ 102
8.13 AC TIG machines, calibration of the arc voltage display ................... 103
9 SPARE PARTS ......................................................................................... 104
Rights reserved to alter specifications without notice.
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