10043
Linear Motor Closed Loop Setting Error
Fanuc · Alpha i Series Servo Amplifier
What does 10043 mean?
This invalid parameter setting alarm occurs when a linear motor is in use, and the closed loop is inadvertently set. For series other than the Series 9080, the closed loop function is incompatible with linear motors.
Common Causes
- The initial configuration or calibration of the linear motor's closed-loop system failed.
- Incorrect parameters are set for the linear motor's position feedback.
- A physical limit switch or encoder setting is invalid.
- The linear motor's internal reference point is not established correctly.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Adjust the parameter settings to disable the closed loop configuration when operating with a linear motor.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i Series Servo Amplifier