Advertisement
Sigma II User's Manual
n
A.b1, A.b2
A.b1: Reference Speed Input Read Error
A.b2: Reference Torque Input Read Error
Display and Outputs
Status and Remedy for Alarm
During servomotor operation.
Error in reference read-in unit (A/D
A
Converter, etc.).
Faulty reference read-in unit (A/D
B
Converter, etc.).
C
Defective circuit board (1PWB).
Alarm Outputs
Alarm Code Output
ALO1
ALO2
OFF
OFF
Note:
OFF:
Output transistor is OFF (alarm state).
Cause of the Problem
Chapter 9: Inspection, Maintenance, and Troubleshooting
ALM Output
ALO3
OFF
OFF
At power ON.
A, B
Solution
Reset alarm and restart operation.
Replace servo amplifier.
Replace servo amplifier.
9-25
C
Advertisement
