Sigma II User’s Manual Chapter 9: Inspection, Maintenance, and Troubleshooting
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A.83
A.83: Absolute Encoder Battery Error
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
* The replacement procedure is described in Section 9.1.3 Replacing the Bat-
tery for the Absolute Encoder
Note: No alarm will occur at the servo amplifier if the battery error occurs during
operation.
Alarm Outputs
Alarm Code Output
ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause of the Problem Solution
A
• Disconnected battery.
• Defective battery connection.
Check and correct battery con-
nection.
B
Battery voltage below specified
value.
Specified value: 2.7V.
Install a new battery while the
control power to the servo ampli-
fier is ON. After replacement,
cycle the power OFF and ON
again.
C Defective circuit board (1PWB). Replace servo amplifier.
*
A, B, C
At power ON.
When parameter
Pn002.2 = 0 or 2
When parameter
Pn002.2 = 1
C
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