Al1302 (Communication Error (Servo I/O)) - YASKAWA Motoman UP6 Instructions Manual

AL1302 (COMMUNICATION ERROR (SERVO I/O))

Replace the XIU01 unit.
Alarm?
Yes
Replace the cable between CN21 on
the XIU01 unit and CN20 on the
WRCA01 circuit board.
Alarm?
Yes
Contact your Yaskawa
representative.
Remove connector CN21 on the
XIU01 unit and re-insert it.
Alarm?
Yes
Replace the WRCA01 circuit board.
Alarm?
Yes
No
Continue normal operation.
The defective XIU01 unit
caused the alarm.
No
Continue normal operation.
The defective cable caused the alarm.
Turn the control power supply OFF
and then ON.
Yes
Remove connector CN20 on the
WRCA01 circuit board and re-insert it.
Alarm?
Yes
No
Continue normal operation.
No
Continue normal operation.
The defective WRCA01 circuit
board caused the alarm.
28
An alarm
occurs.
Alarm?
No
No
Continue normal operation.
Continue normal
operation.