Omron OMNUC W Series Manual page 218

A.03
A.03: Main-circuit Detection Error
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
OFF OFF
Note OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
At power ON
Cause
A Circuit board (1PWB or 2PWB) is defective.
A.04
A.04: Parameter Setting Error
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
OFF OFF
Note OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
At power ON
Cause
A
An out-of-range parameter was previously
set or loaded.
B
Circuit board (1PWB) is defective.
C The DeviceNet Unit is defective.
9-7
9.3 Troubleshooting with Alarm Displays
ALM Output
ALO3
OFF OFF
A
Remedy
Replace the Servo Driver.
ALM Output
ALO3
OFF OFF
A, B, C
• Reset all user parameters in range.
• Otherwise, re-load the correct parameter.
Replace the Servo Driver.
Replace the DeviceNet Unit.
Remedy
9