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F-39
TROUBLESHOOTING & REPAIR
F-39
INVERTEC V250-S
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.
CAPACITOR BALANCE TEST
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).
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WARNING