YASKAWA SGD7S-xxxDA0 series Product Manual page 536

16.2 Alarm Displays
16.2.2 Troubleshooting Alarms
Alarm Code:
Alarm Name
C21h:
Polarity Sensor
Error
C22h:
Phase Informa-
tion Disagree-
ment
16-30
Possible Cause
The polarity sensor is
protruding from the Check the polarity sen-
Magnetic Way of the sor.
motor.
The polarity sensor is Check the wiring of the
not wired correctly. polarity sensor.
The polarity sensor
–
failed.
The SERVOPACK
phase information is
different from the lin- –
ear encoder phase
information.
Confirmation
Correctly reinstall the
Moving Coil or Magnetic
Way of the motor.
Correct the wiring of the
polarity sensor.
Replace the polarity sen-
sor.
Perform polarity detec-
tion.
Continued from previous page.
Correction Reference
–
–
–
page 6-25
Continued on next page.