YASKAWA SGD7S-330A - Page 170

8.1 Alarm Displays
8.1.2 Troubleshooting Alarms
8-30
A.C92:
Encoder Commu-
nications Timer
Error
Noise entered on the
signal line from the
encoder.
–
Implement countermea-
sures against noise for the
encoder wiring.
*1
Excessive vibration or
shock was applied to
the encoder.
Check the operating
conditions.
Reduce machine vibra-
tion.
Correctly install the Ser-
vomotor or linear encoder.
–
A failure occurred in
the encoder.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the Servomotor or
linear encoder may be
faulty. Replace the Servo-
motor or linear encoder.
–
A failure occurred in
the SERVOPACK.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
–
A.CA0:
Encoder
Parameter
Error
A failure occurred in
the encoder.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the Servomotor or
linear encoder may be
faulty. Replace the Servo-
motor or linear encoder.
–
A failure occurred in
the SERVOPACK.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
–
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause Confirmation Correction Reference