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9 Troubleshooting
9-12
A.C7
A.C7: Fully Closed Encoder Phase-C Disconnection Alarm
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
Circuit board (1PWB) is defective.
Replace the SERVOPACK.
B
Encoder wiring error or faulty contact.
Check the wiring and check that the con-
nector is fully inserted on the encoder
side.
C
There is noise in the encoder wiring.
Separate the encoder wiring from the
main circuit.
D
Encoder is defective.
Replace the servomotor.
At power ON
A
1 to 3 seconds after power
ON
A, B,
C, D
During servomotor
operation
A, B,
C, D