What does Excessive Gain mean?

[travis]

What does "Excessive Gain" mean?

Hello,
What does excessive gain mean? Can someone provide a basic explanation or definition of excessive gain pertaining to a motor. Thank you!

[Cheller]

What does excessive gain mean?

Definition of excessive gain: In relation to a motion control system, excessive gain is the concept of generating high torque and large amounts of heat within a motor due to over-correction of a small position error.

Excessive gain can cause a motor to over-correct unnecessarily hard which is where the higher current and heat come from.

How to reduce excessive gain in a motor:

Well, your motor drive combo need to be addressed in some manner. Since most manufacturers vary on tuning techniques, you may need to adjust a pot, change a parameter, or even move a jumper to reduce excessive gain.

A properly adjusted motor will not get quite as warm. A lighter load may require less gain in your settings versus a load that is a greater strain on the motor.