How to solve the vibration of servo system? (Classic Q&A 1)

9. What is the reason for motor sweeping?

Motor rubbing is the friction between the motor rotor and the silicon steel sheet in the stator winding. Generally, the bearing is broken. It is also possible that the bearing is on the outer edge and the bearing position of the end cover is loose. It is also possible that the rotor is on the inner edge and the bearing position on the rotor is broken. The smallest possibility is that the rotor is bent. The rotor eccentricity is caused by bearing wear or loose bearing seat.

The bearing ring on the motor shaft is seriously worn, the rotor core is displaced, or the stator core is displaced due to other reasons, resulting in the gap between the conical rotor and the stator of the motor being too small to cause bore scraping. It is strictly forbidden to "sweep the bore" of the motor. When bore scraping occurs, the bearing ring should be removed and replaced, and the gap between the conical surfaces of the stator and rotor should be adjusted to be uniform, or the motor should be sent for repair.

10. The AC servo motor may vibrate during operation. How to solve the problem?

E-1E: Indicates that the actual value of the remote control registration cannot be checked.

E-2E: means that normal values ​​cannot be transmitted.

E-3E: Indicates that the status of the currently selected unit cannot be checked.

E-4E: The current operating status of the servo motor cannot be confirmed.

E-5E: The servo motor position potentiometer is out of the adjustment range.

The jitter is not normal, it may be due to the rail not being smooth or the power being insufficient. Adjust the power to a lower level.