Lincoln Electric DC-600 series Operator's Manual page 35

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Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
Machine has minimum output and
no control.
The machine does not have maxi-
mum weld output.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
TROUBLESHOOTING
POSSIBLE
CAUSE
OUTPUT PROBLEMS
1. If a remote control unit is NOT
connected to the terminal strip
#75, #76, and #77 terminals, or
is not connected to the 14 pin
MS receptacle
LOCAL/REMOTE SWITCH
must be in the "Local" position.
2. If a remote control cable is con-
nected to terminals #75, #76
and #77 or is connected to the
14 pin MS receptacle the leads
may be "shorted" to the posi-
tive weld output.
3. Make certain the Three Phase
input voltage is correct and
matches the machine rating
and the reconnect panel.
1. Check all Three-Phase input
lines at the DC600. Make
sure input voltages match
machine rating and recon-
nect panel.
2. Put LOCAL/REMOTE
SWITCH (SW3) in "LOCAL"
position. If problem is
solved then check remote
control unit or wire feeder.
3. Check for loose welding
cable connections.
CAUTION
DC-600
RECOMMENDED
COURSE OF ACTION
the
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
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