YASKAWA YASNAC XRC - Al-1330 (Micro Program Transmit Error); Al-1331 (Current Feedback Error (U Phase))

An alarm
occurs.
Contact your Yaskawa
representative.
AL-1330 (MICRO PROGRAM TRANSMIT ERROR)
Check connector CN50 of the
WRCA01 circuit board. (See Fig. 18.)
Alarm?
Yes No
Replace the WRCA01 circuit board.
SERVOPACK
Fig. 18
CN20
CN50
Alarm?
NoYes
AL-1331 (CURRENT FEEDBACK ERROR (U PHASE))
An alarm
occurs.
Contact your Yaskawa
representative.
Turn the control power supply OFF
and then ON.
Alarm?
Yes No
Remove connectors CNPB1 to CNPB6
on the WRCA01 circuit board and re-
insert them. (See Fig. 19.)
Alarm?
Yes No
Check the cable between the WRCA01
circuit board and the amplifier.
Alarm?
Yes No
Replace the WRCA01 cirucit board.
Alarm?
Yes No
Replace the SERVOPACK.
Alarm?
Yes No
SERVOPACK
CNPB4
Fig. 19
CNPB5 CNPB6
CNPB1 CNPB2 CNPB3
Continue normal operation.
A faulty connection caused the alarm.
Continue normal operation.
The defective SERVOPACK caused the alarm.
Continue normal operation.
The defective WRCA01 circuit
board caused the alarm.
Continue normal operation.
The poor contact caused the alarm.
Continue normal operation.
The defective WRCA01 circuit board caused the alarm.
Continue normal operation.
The wrong operation of the WRCA01
circuit board caused the alarm.
Continue normal operation.
The defective cable caused the alarm.
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