Omron OMNUC W Series Manual page 237

9 Troubleshooting
9
A.9A
A.9A: Positioning Timer Timeout
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
OFF ON
Note OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
During Servomotor
operation
Cause
A Positioning Monitoring Time setting is too
small.
B Positioning Loop Gain or Speed Loop Gain
setting is too small.
A.B1
A.B1: Speed Command Input Reading 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
During Servomotor
operation
Cause
A Error in command read-in unit
(A/D convertor, etc.)
B Command read-in unit is defective.
(A/D convertor, etc.)
C Circuit board (1PWB) is defective.
9-26
ALM Output
ALO3
OFF ON
A, B
Correct the Positioning Monitoring Time
setting.
Correct the Positioning Loop Gain or Speed
Loop Gain setting.
ALM Output
ALO3
OFF OFF
A, B
At power ON
Reset alarm and restart operation.
Replace the Servo Driver.
Replace the Servo Driver.
Remedy
C
Remedy