Input rectifier, Test, Troubleshooting and repair – Lincoln Electric INVERTEC SVM199-A User Manual

Page 61: Input rectifier test procedure, Warning

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Service and repair should only be performed by 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 precautions detailed throughout this
manual.

If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical trou-
bleshooting assistance before you proceed. Call 1-888-935-3877.

TEST DESCRIPTION

This test will help determine if the input rectifier has “shorted” or “open” diodes.

MATERIALS NEEDED

Analog Voltmeter/Ohmmeter (Multimeter)

5/16” Nut Driver

Phillips Head Screwdriver

Wiring Diagram

INPUT RECTIFIER TEST PROCEDURE

TROUBLESHOOTING AND REPAIR

F-21

F-21

INVERTEC® V450-PRO

WARNING

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