Sigma II User’s Manual
Chapter 9: Inspection, Maintenance, and Troubleshooting
9-20
n
A.82
A.82: Encoder Checksum 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
Error during encoder memory
check.
• Follow absolute encoder setup pro-
cedure.
• Replace servomotor if error occurs
frequently.
B
Circuit board (1PWB) defective.
Replace servo amplifier.
A, B
A
A, B
At power ON.
During servomotor
When the sensing (SEN)
signal is ON and parameter
Pn002.2 = 0 or 2.
operation.