Sigma II User’s Manual
Chapter 9: Inspection, Maintenance, and Troubleshooting
9 - 22
A.84
A.84: Absolute Encoder Data 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
Malfunctioning absolute encoder.
Replace servomotor if error
occurs frequently.
B
Operational error in encoder
caused by external noise
Check and correct wiring around
the encoder, (grounding of servo-
motor, separation of encoder and
power cables, insertion of toroi-
dal cores onto cables to reduce
noise, etc.)
At power ON.
During servomotor
operation.
A
B
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