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Inspection, Maintenance, and Troubleshooting
9.2.1 Troubleshooting Problems with Alarm Displays
9 -24
J
J
A.C8
A.C8: Absolute Encoder Clear Error and Multi-turn Limit Setting Error
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALM
Output
ALO1
ALO2
ALO3
Output
ON
OFF
ON
OFF
Note
OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
At power ON
A, B
When resetting multi-turn clear
encoder alarm
A, B
Cause
Remedy
A
Encoder defective.
Replace Servomotor.
B
Servopack defective.
Replace Servopack.
J
J
A.C9
A.C9: Encoder Communications Error
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALM
Output
ALO1
ALO2
ALO3
Output
ON
OFF
ON
OFF
Note
OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
At power ON
A, B, C
During Servomotor
operation
A, B, C
Cause
Remedy
A
Encoder wiring incorrect or disconnected
Check wiring and connectors at encoder.
B
Encoder defective.
Replace Servomotor.
C
Servopack defective.
Replace Servopack.
9
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