Omron OMNUC W R88A-NCW152-DRT, Manual

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9 Troubleshooting
9-14
9
„ A.51
A.51: Overspeed
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 OFF ON OFF
Cause Remedy
A Servomotor wiring is incorrect. Check and correct wiring. (Check phase-U,
-V, and -W motor wiring errors.)
B Position or speed command input is too
large. Lower the command input values.
C Incorrect command input gain settings. Check and correct the parameter settings.
D
Circuit board (1PWB) is defective. Replace the Servo Driver.
D
A
B, C
When servo ON (RUN)
signal turned ON
During high-speed
Servomotor rotation
after command input
At power ON