Servo control without integral action

Is it possible to control servo system without integral action? Here is the method to control it with modified proportional action only;

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Sure. Integrators make the error zero. As does an infinitely high proportional part. If the acceptable error a bit above zero, the proportional part may be a bit below infinte.


Ing.Buero R.Tschaggelar -
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Rene Tschaggelar

Certainly. Furthermore, the servo can be controlled not just without I, but without P,I and D altogether.

So what?

Vladimir Vassilevsky DSP and Mixed Signal Design Consultant

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Vladimir Vassilevsky

I think that you meant : an integrator in the forward path makes the static error zero.

Jure Z.

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Jure Newsgroups


Best regards, Spehro Pefhany

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Spehro Pefhany

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