Overcurrent Protection Current Trigger Test - Lincoln Electric INVERTEC V300-PRO SVM105-B Service Manual

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OVERCURRENT PROTECTION CURRENT TRIGGER TEST

Service and repair should be performed by only 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 pre-
cautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to per-
form the test / repairs safely, contact the Lincoln Electric Service Department for
electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.
TEST DESCRIPTION
This procedure will determine if the overcurrent trigger circuit is working correctly and
also if the current limiting portion of the Control Board is working correctly.
MATERIALS NEEDED
Digital
Misc. Hand Tools
Wiring Diagram (Section G)
TROUBLESHOOTING & REPAIR
WARNING
Volt/Ohm Meter (multi-meter)
V300-PRO
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