Lincoln Electric IM559 Synergic 7F and 7FH - Manual (Page 40)

E-11 TROUBLESHOOTING E-11
SYNERGIC 7F & FH
Observe all Safety Guidelines 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 your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
25. Display shows any of the follow-
ing:
HI
---
HXX
Er
EXX
EP
uP
a. Voltmeter function is selected and
arc voltage is > 80 VDC.
a. Run-in speed is selected but is
disabled.
a. See Problem 5 or see Section on
Safety Precautions.
a. EEPROM error.
a. Where XX is a number from 1 to
10. System error.
a. EPROM checksum error.
a. Microprocessor RAM error.
a. Normal operation. Voltmeter only
reads 0-80 VDC.
a. Run-in speed is now = weld speed.
To re enable Run-in speed simply
press the increase arrow key.
a. XX indicates time in seconds before
unit will automatically reset.
a. Parameter recalled at power-up was
out of range. Press any key to reset.
Check all settings before proceeding
to weld. If this condition persists then
ROM assembly X8 on the Control PC
board is faulty. Replace Control PC
board. (See procedure for replacing
PC boards.)
a. Turn off power to feeder. Wait for 5
seconds. Turn power back on. If EXX
is displayed again then ROM assem-
bly X8 on the Control board is faulty.
Replace Control PC board. (See pro-
cedure for replacing PC boards.)
a. Turn off power to feeder. Wait 5 sec-
onds. Turn power back on. If EP is
displayed again then ROM assembly
X8 on Control PC board is faulty.
Replace Control PC board. (See pro-
cedure for replacing PC boards.)
a. Turn off power to feeder. Wait 5 sec-
onds. Turn power back on. If uP is
displayed again then ROM assembly
X8 on the Control PC board is faulty.
Replace Control PC board. (See pro-
cedure for replacing PC boards.)