Lincoln Electric IM306 IDEALARC DC-600 - Manual (Page 38)

E-4 TROUBLESHOOTING E-4
IDEALARC DC-600
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.
CAUTION
Observe Safety Guidelines
detailed in the beginning of this manual.
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
Input contactor (CR1) chatters.
Input contactor pulls in when start
button is pressed but immediately
drops out when start button is
released.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. The input line voltage may be
low. Check all three phases.
2. Make sure input line voltage
matches machine rating and
the reconnect panel is connect-
ed correctly for the line voltage.
1. Make sure input line voltage
matches machine rating and
the reconnect panel is connect-
ed correctly for the line voltage.
2. Remove all external wires
attached to terminal strip. ( 2,
4, 31, 32 75,76,77). If contac-
tor (CR1) functions correctly
there may be a "ground" or
negative intrusion on the
remote control leads (75, 76, or
77). There may also be a
"short" at the welder output ter-
minals.
3. If the problem persists after
performing steps #1 and #2 the
problem is in the DC600.
RECOMMENDED
COURSE OF ACTION
OUTPUT PROBLEMS
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.