YASKAWA Motoman UP6 Instructions Manual page 516

AL-1332 (CURRENT FEEDBACK ERROR (V PHASE))
SERVOPACK
CNPB4 CNPB5 CNPB6
CNPB1 CNPB2 CNPB3
Fig. 20
An alarm
occurs.
Turn the control power supply OFF
and then ON.
Alarm?
Yes
Remove connectors CNPB1 to CNPB6
on the WRCA01 circuit board and re-
insert them. (See Fig. 20.)
Alarm?
Yes
Check the cable between the WRCA01
circuit board and the amplifier.
Alarm?
Yes
Replace the WRCA01 cirucit board.
Alarm?
Yes
Replace the SERVOPACK.
Alarm?
Yes
Contact your Yaskawa
representative.
50
No
Continue normal operation.
The wrong operation of the WRCA01
circuit board caused the alarm.
No
Continue normal operation.
A faulty connection caused the alarm.
No
Continue normal operation.
The defective cable caused the alarm.
No
Continue normal operation.
The defective WRCA01 circuit
board caused the alarm.
No
Continue normal operation.
The defective SERVOPACK caused the alarm.