10.3.4
E004 Regulation Error-Arc Went Out
Fatal, meaning you have to power down to continue welding
No
Acknowledge, meaning the error will exist as long as the unit is
powered on.
(Note, welding can continue while the error exists)
.No
Description:
If the control board senses that the current was more than 50% low
while the
control to the power system was at the maximum for 15ms,
it will abort the weld and
display this error. This will happen if the cur-
rent sensing failing for any reason
(wiring, power supply, etc). This
exists as a safety mechanism in case current
sensing fails. This is most
likely caused by the arc actually popping out.
Likely problems or items to check - in order from most likely to least
likely:
1. Arc actually popped out. Check gun lift / Try again. If it is consistant, it is an
internal failure.
2. Damaged/Broken connection from the current sensor (See picture
below) to JP5
of control board.
3. Pilot arc circuit - Look for evidence of a pilot arc. If no pilot arc
mark on the work
material, replace the pilot arc board.
4. Check that the main relay pulled in during the start up process.
When the main
relay is closed, there should be 0V between the
two power terminals of the input
board. If the voltage is higher,
the input board main relay in not energized.
Replace the input
board.
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