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TROUBLESHOOTING AND REPAIR | ||
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MAIN IGBT INVERTER BOARD LOW VOLTAGE TEST
WARNING
Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical trou- bleshooting assistance before you proceed. Call
TEST DESCRIPTION
This test will help determine if all of the auxiliary voltages on the Main IGBT Inverter
Board are correct.
MATERIALS NEEDED
Voltmeter
Phillips Head Screwdriver
Wiring Diagram
Voltmeter
