Lincoln Electric SVM123-A service manual Active SCR Test

Models: SVM123-A

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F-34

TROUBLESHOOTING & REPAIR

F-34

 

 

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).

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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 outlined in this procedure.

DC-1000 Wiring Diagram (See Electrical Diagrams Section of this manual).

IDEALARC DC-1000

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Lincoln Electric SVM123-A service manual Active SCR Test