Troubleshooting Servo Motor Vibration

Cutting errors due to servo vibration during millimetric cutting can lead to great costs. Why does the servo vibrate? It is not possible to give a clear answer to the question. Because the function of the machine used, servo motor brand, servo motor power and servo driver are not the same in every system. Therefore, in order to resolve servo vibration, the characteristics of the system should be examined and the servo drive parameter settings should also be taken into consideration during operation.

Common vibration positions in the servo motor

  • Vibrations may occur during the start and stop positions of the servo.
  • Vibrations caused by springs may occur while the servo moves.
  • After the servo moves to the stopping position, shaking may occur during position stabilization.

Why Do Servo Motors Vibrate?

Position, speed and torque controls are not adjusted in accordance with the system,
  • Servo input pulse type (Pulse+ etc.),
  • Factors such as the length and non-contact of the servo driver and connection cables,
  • Failure to configure motor gain setting,
  • From servo motor driver settings,
  • Due to a mechanical jam in the system,
  • When the servo motor is not loaded appropriately for its power, the servo becomes stressed and may cause problems such as drifting off the axis, making noise and shaking.
  • Does the servo shaking problem affect the operating performance?

    Different in servo motor Flickering problems that occur due to various reasons directly or indirectly affect the operation of the system. We can see these problems more clearly especially in the servos we use on CNC machines. However, it may generally reduce the operating performance of the machine as it causes deviations in the position of the motor and affects the motor power.

    How to solve Servo Motor vibration problems?

    • If there is a flicker caused by the power supply, this problem can be solved by using external power supply.
    • Parameter input values ​​appropriate to engine power are configured. If the problem persists when the parameter settings are at maximum level, the servo motor with a higher wattage should be switched to.
    • Axis control settings are adjusted on CNC machines using Mach3.
    • It can be operated in Auto tuning option. Auto tuning setting is not available in every servo motor driver. PID settings must be configured in order to control and apply varying parameter settings.

    Different variations may trigger vibration problems frequently encountered in servo motors. You can get technical support from Şahin Rulman on PID Settings, which vary depending on motor power and servo driver. You can get support from the experienced Şahin Rulman team in configuring PID settings. If you wish, you can share the vibration problems you experience with Şahin Rulman servo motors and servo drivers with us in the comments section.