Omron OMNUC W R88A-NCW152-DRT, Manual

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9.3 Troubleshooting with Alarm Displays
9-15
9
„ 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
Note OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Outputs ALM Output
ALO1 ALO2 ALO3
ON ON ON OFF
Cause Remedy
A
Servomotor wiring is incorrect or discon-
nected. Check wiring and connectors at Servomotor.
B
Load greatly exceeds rated torque. Reduce load torque and inertia. Otherwise,
replace with a larger capacity Servomotor.
C
Circuit board (1PWB) is defective. Replace the Servo Driver.
C A
B
N
B
When servo ON (RUN)
signal turned ON
When speed reference
input
No Servomotor
rotation
During normal
operation
At power ON