Omron OMNUC W Series Manual page 226

A.71
A.71: Overload: Instantaneous Maximum Load
The alarm output, the status when LEDs are lit, and the remedy procedure are identical to
those of A.72 below.
A.72
A.72: Overload: Continuous Maximum Load
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
ON ON
Note OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
When servo ON (RUN)
signal turned ON
When speed reference
input
No Servomotor
rotation
During normal
operation
Cause
A Servomotor wiring is incorrect or discon-
nected.
B Load greatly exceeds rated torque.
C Circuit board (1PWB) is defective.
9-15
9.3 Troubleshooting with Alarm Displays
ALM Output
ALO3
ON OFF
At power ON
A
B
B
Check wiring and connectors at Servomotor.
Reduce load torque and inertia. Otherwise,
replace with a larger capacity Servomotor.
Replace the Servo Driver.
C
Remedy
9