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Sigma II User's Manual
n
A.03
A.03: Main Circuit Encoder Error
Display and Outputs
Status and Remedy for Alarm
Circuit board (1PWB or 2PWB) defec-
A
tive.
n
A.04
A.04: Parameter Setting Error
Display and Outputs
Status and Remedy for Alarm
Cause of the Problem
An out–of–range parameter was pre-
A
viously set or loaded.
B
Circuit board (1PWB) defective.
Alarm Outputs
Alarm Code Output
ALO1
ALO2
OFF
OFF
Note:
OFF:
Output transistor is OFF (alarm state).
At power ON.
Cause of the Problem
Alarm Outputs
Alarm Code Output
ALO1
ALO2
OFF
OFF
Note:
OFF:
Output transistor is OFF (alarm state)
At power ON.
Chapter 9: Inspection, Maintenance, and Troubleshooting
ALM Output
ALO3
OFF
OFF
A, B
Solution
Replace servo amplifier.
ALM Output
ALO3
OFF
OFF
A, B
Solution
• Reset all parameters in range.
• Otherwise, reload correct parameter.
Replace servo amplifier.
9-6
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