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F-39

TROUBLESHOOTING & REPAIR

F-39

 

 

CAPACITOR BALANCE TEST

WARNING

Service and repair should be performed only by Lincoln Electric factory trained per- sonnel. Unauthorized repairs performed on this equipment could result in danger to the technician or the machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precau- tions detailed throughout this manual.

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric service department for technical troubleshooting assistance before you proceed.

Call (216) 383-2531 or (800) 833-9353 (WELD).

_____________________________________________________________

TEST DESCRIPTION

This test will help the technician to determine if the input filter capacitors are being charged equally and to the correct voltage levels. Note: This test should only be conducted with the V250-S reconnect switch and “A” jumper configured for 380VAC and above.

MATERIALS NEEDED

Voltmeter/ohmmeter (Multimeter)

Machine wiring diagram.

INVERTEC V250-S

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Lincoln Electric V250-S service manual Capacitor Balance Test, Test Description