Error message

8BD0 Excessive servo lag in %.2s

Cause of error

- The following error of a moving axis is greater than the value given in machine parameter MP1720.x (in lag mode), MP 1420.x (feedforward mode), or MP 1120.x (when calculating the commutation angle).
- Overloaded driver
- Insufficient lubrication
- Mechanical stiffness
- Machine vibration
- Hardware error in the control loop
- For analog axes, servo defective

Error correction

- Reduce the contouring feed rate, increase the rotational speed
- Check the lubrication
- Remove mechanical stiffness
- Remove any possible sources of vibration
- Analog axes: Check the servo
- Inform your service agency if the error occurs frequently