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TROUBLESHOOTING
1-143August 9, 2005
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
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ERROR CODE E6502 Arc failure.
The signal (current detection: WCR) that indicates the robot is executing the weld was
not returned from the weld controller/timer within 1 second, or less, after welding
started.
Main causes include:
1. Arc is not generated when welding starts.
2. Arc generation is interrupted for 1, or more, seconds during welding.
⇒
Check for insulating debris that prevents welding, clear debris as necessary.
⇒
Confirm that adequate supply of wire is available.
⇒
Confirm that wire is not stuck to the welding tip.
⇒
Check weld controller/timer and cables, repair/replace as necessary.
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ERROR CODE E6503 Wire stuck.
Main causes include:
1. Welding and crater fill are completed and the arc is set OFF, but a weld stuck detec-
tion signal is received. The weld stuck detection signal does not clear after the es-
cape process is executed.
2. The wire is stuck to the base metal at weld completion.
⇒
Cut the wire and re-execute weld.
⇒
Change weld conditions if problem occurs frequently.
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ERROR CODE E6504 Arc start failed.
The signal (current detection: WCR), that indicates the robot is executing the weld, is not
return from the weld controller/timer at welding start.
Main causes include:
1. Insulating debris that prevents welding.
2. Welding wire feed supply ran out, or wire is stuck to welding tip.
⇒
Check for insulating debris that prevents welding, clear debris as necessary.
⇒
Confirm that adequate supply of wire is available.
⇒
Confirm that wire is not stuck to the welding tip.
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