YASKAWA DX200 Maintenance Manual page 1079

Alarm Name
Alarm Sub
Number
Code
4708 MOTOR GUN AUTO
TUNING
INCOMPLETE
4709 WELD COMPLETE
SIGNAL OFF
4710 WELDER ERROR
4711 24V FUSE BLOWN
(EW-BOARD)
4712 24V DETECT CIR
ERR (EW-BOARD)"
Meaning Cause
Sub Code: Gun number Setting error
other
Sub Code: Welder number Setting error
other
Welding power failure
Welding power failure
other
Parts failure
Board failure
other
Board failure
Remedy
Please complete the setting of MOTOR GUN AUTO TUNING FILE as
the following operations.
1. choose [SPOT WELDING] ->[MOTOR GUN AUTO TUNING].
2. change the mode to PLAYBACK, then push [EXECUTE].
3. select [REGIST], after the setting of MOTOR GUN AUTO TUNING
FILE completes.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
(1)Reset the alarm, and then try again.
NOTE) When trying the job again, the manipulator returns to the
previous welding point where the spot welding wasn't completed
normally and welds again there.
(2)If the alarm occurs again, check the following setting of the timer.
∙
Decrease the offset time of opening the gun.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
It will be automatically reset after 10 seconds. Then, start again.
Turn the primary power of welding power OFF then back ON
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
Replace the fuse on the YEW board.
Replace the YEW board of the corresponding station.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
Replace the YEW board of the corresponding station.