Yaskawa Sigma II Series Servo System - Manual (Page 395)

Sigma II User’s Manual Chapter 9: Inspection, Maintenance, and Troubleshooting
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A.05
A.05: Servomotor and Amplifier Combination Error
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Output
ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause of the Problem Solution
A
The range of servomotor capaci-
ties that can be combined has
been exceeded.
Replace the servomotor so that
an acceptable combination is
achieved.
B
Encoder parameters have not
been written properly.
Replace the servomotor.
At power ON. A, B