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B-11
OPERATION
B-11
SYNERGIC 7 & 7H
Grounding Lead Protector
The frame of the Synergic 7 wire feeder is grounded
to the frame of the power source by a lead in the con-
trol cable. An overload protector prevents welding
current from damaging this lead if the electrode circuit
touches the wire feeder frame while the electrode is
electrically hot.
If such a grounding lead fault occurs, the wire feeder
display will show "GLP", and the trigger circuit will be
disabled. To reset the circuit, release the trigger,
make sure that the electrode is not touching the wire
feeder frame, and then either press any key on the
keypad or close the trigger. When the GLP circuit is
reset, the "GLP" display is removed and the wire feed-
er is returned to normal operating mode.
Explanation of Prompting and
Error Messages
Display Prompt or Error
HI Indicates arc voltage is above 80V DC.
--- Indicates selected Run-In speed will be the
same as the weld speed. To enter a different
Run-In speed simply press the increase arrow
key with Run-In selected.
HXX Indicates wire feed overload. XX indicates
time remaining in seconds before unit resets
automatically. See sections on Routine
Maintenance, Periodic Maintenance, and
Troubleshooting Guide Problem 24.
EP Indicates problem in EPROM assembly. See
Troubleshooting Guide Problem 24.
uP Indicates problem in microprocessor RAM.
See Troubleshooting Guide Problem 24.
EXX Indicates various system problems. XX will
be a number from 01 to 10. Turn off power to
feeder. Wait 5 seconds. Turn power back on.
If error persists, see Troubleshooting Guide
Problem 24. If error does not reoccur, be
sure to check all wire feed speed, accelera-
tion, and timer settings before you proceed.
Er EEPROM error. Usually occurs at power-up.
Indicates one or more of the recalled settings
is out of acceptable limits. Press any key to
return to normal operation. Be sure to check
all wire feed speed, acceleration, and timer
settings before you proceed.
GLP Indicates that the Grounding Lead Protector
circuit was activated due to excessive current
flow into the wire feeder frame. When the
Grounding Lead Protector circuit is activated
the wire feeder is disabled, i.e. the trigger out-
put to the power source is opened up, the
motor is stopped, and the gas solenoid is
turned off. To resume normal operation,
release the trigger, make sure that the elec-
trode is not touching the wire feeder frame,
and then either press a key on the keypad or
close the trigger. See Problem 24 in the
Troubleshooting Guide.