Yaskawa Large Capacity Sigma II Series - Manual (Page 364)

8.2 Troubleshooting
8-25
8
„ A.b2
A.b2: Reference Torque Input Read Error
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Outputs ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause Remedy
A Error in reference read-in unit (A/D Con-
verter, etc.). Reset alarm and restart operation.
B Reference read-in unit faulty. (A/D Con-
verter, etc.). Replace SERVOPACK.
C Circuit board (1PWB) defective. Replace SERVOPACK.
At power ON C
During servomotor
operation
A, B