Active Scr Test - Lincoln Electric Idealarc DC600 9773MSP Service Manual

F-37
TROUBLESHOOTING & REPAIR

ACTIVE SCR TEST

WARNING
Service and repair should be performed only by Lincoln Electric factory trained personnel.
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 precautions 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 trou-
bleshooting assistance before you proceed. Call (216) 383-2531 or (800) 833-9353
(WELD).
______________________________
TEST DESCRIPTION
The Active SCR Test will determine if the device is able to be gated ON and conduct current
from anode to cathode.
MATERIALS NEEDED
An SCR Tester as specified in this procedure.
IDEALARC DC-600 wiring diagrams (See Electrical Diagrams Section of this Manual).
IDEALARC DC-600