Omron OMNUC W R88A-NCW152-DRT, Manual

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9 Troubleshooting
9-34
9
„ A.D0
A.D0: Deviation Counter Overflow
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 OFF OFF
Cause Remedy
A
Servomotor wiring is incorrect. Check wiring at Servomotor.
B The Servo Driver was not correctly
adjusted. Increase Speed Loop Gain (Pn100) and
Position Loop Gain (Pn102).
C Motor load was excessive. Reduce load torque or inertia. If problem not
corrected, replace with a larger capacity
Servomotor.
D Position command is too high. • Reduce the acceleration/deceleration rate.
• Change electronic gear ratio.
E Circuit board (1PWB) is defective. Replace the Servo Driver.
E
A
B, C, D
During Servomotor
operation
Deviation counter overflow
during high-speed rotation
Operation is normal, but
deviation counter overflows
when long command is input.
At power ON