Symptoms, Troubleshooting and repair, Caution – Lincoln Electric POWER FEED SVM185-A User Manual
Page 78
FUNCTION PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
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 1-888-935-3877.
CAUTION
The ammeter on the POWER
FEED® 25M does not function
properly even though the STATUS
LEDs are steady green.
1. Make sure the DIP switches are
configured correctly for the weld-
ing process and polarity used.
See Setting DIP Switches in
the Wire Drive in the
Installation section of this manu-
al.
2. Check the following connections
on the POWER WAVE®
machine. Check for loose or
faulty connections between plug
J90 at the current transducer and
plug J21 on the Power Source
control board.
1. Perform the Current Transducer
Test in the Power Source
Service Manual.
2. The control board, located in the
power source, may be faulty.
The display and/or indicator LEDs
do not change when their corre-
sponding switches and or knobs
are activated or turned.
1. Check for loose or faulty connec-
tions between the encoder panel
and the Control Box control
board.
2. Check for loose or faulty connec-
tions between the appropriate
switches and the Control Box
control board.
1. Check suspected potentiometer
and/or switches for correct resis-
tances and operation.
2. Refer to machine schematics for
lead numbers and voltages.
3. The Control Box control board
may be faulty.
The mode and/or settings change
while welding under normal condi-
tions.
1. Contact “powerwave software.com”
for the latest updated software.
TROUBLESHOOTING AND REPAIR
F-4
F-4
POWER FEED® 25M