Fault Code: FU105
Fault Description: Internal Program Exception

Possible Causes and Solutions:

1. EEPROM Fault:

• Follow the troubleshooting method for FU101.

• Restore system parameters to initialization (set P02-31=1), then cycle power to the drive.

  2. Servo Drive Hardware Failure:

• If the fault persists after multiple power cycles, replace the servo drive.

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Note: This fault indicates critical internal software or memory errors requiring hardware intervention if parameter reset fails.