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Sigma II User's Manual
n
A.30
A.30: Regenerative Error Detected
Display and Outputs
Status and Remedy for Alarm
During servomotor
operation.
About 1s after main circuit
power is turned ON.
A
Malfunctioning regenerative transistor.
B
Regenerative resistor is open.
Disconnected regenerative unit
C
(for an external regenerative resistor).
D
Defective servo amplifier.
Alarm Outputs
Alarm Code Output
ALO1
ALO2
ON
ON
Note:
OFF:
Output transistor is OFF (alarm state).
ON:
Output transistor is ON.
Cause of the Problem
Chapter 9: Inspection, Maintenance, and Troubleshooting
ALM Output
ALO3
OFF
When the control power
A.B
is turned ON.
A.B.C
Replace servo amplifier.
Replace servo amplifier or regenera-
tive resistor.
Check the wiring of the external
regenerative resistor.
Replace servo amplifier.
9-9
OFF
D
Solution
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