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Inspection, Maintenance, and Troubleshooting
9.2.1 Troubleshooting Problems with Alarm Displays
9 -12
J
J
A.41
A.41: Main Circuit DC Voltage Error Detected: Undervoltage
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALM
Output
ALO1
ALO2
ALO3
Output
OFF
OFF
ON
OFF
Note
OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
Occurred when the
control power
turned ON.
D
A, B, C
A, B, C
During Servomotor
operation
Occurred when main
circuit power turned ON.
Cause
Remedy
A
The power supply voltage is not within the
range of specifications.
Check power supply voltage.
B
Fuse blown.
Replace Servopack.
C
Rectifying diode defective.
D
Servopack defective.
9
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