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The specialist of small precision motors - ORIENTAL MOTOR (INDIA) > Q&A > Servo Motors Qn 7: When the load inertia moment is large, would lenthening the acceleration/ deceleration rate cause any problem?
Servo Motors: When the load inertia moment is large, would lenthening the acceleration/ deceleration rate cause any problem?
Question 7: When the load inertia moment is large, would lenthening the acceleration/ deceleration rate cause any problem?

Answer : With AC servo motors, the suitable load inertia sets the limit to which the servo system can operate stably.
If the motor is operated at an inertia moment that exceeds this value, the following problems can occur:

1. Hunting occurs when the motor is stopped.
2. Rotation becomes highly irregular.
3. The driver's protection function activate.

Since these problems cannot be solved by adjusting the acceleration/ deceleration rate, always operate the motor below the suitable load inertia moment.




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