9 Troubleshooting
9-4
A.81
A.81: Encoder Backup 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 The following power supplies to the absolute
encoder all failed:
• +5 V supply (supplied from the
SEROVPACK)
• Battery power
Follow absolute encoder set-up procedure.
B Absolute encoder malfunctioned. Replace the servomotor.
C Circuit board (1PWB) is defective. Replace the SERVOPACK.
At power ON
Pn002.2 = 0
Pn002.2 = 1
A, B, C
C
At SENS_ON command
A, C
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