Characteristics Of Pid Controllers; P Component - Burkert 8630 Operating Instructions Manual

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ENERAL ULES

Characteristics of PID controllers

A PID controller has a proportional, an integral and a differential component (P, I and D components).

P component

Function: Y = Kp · Xd
Where Kp is the proportional action factor (amplification factor). It is given by the ratio of the correcting
range ∆Y to the proportional range ∆Xd.
Characteristic and step response of the P component of a PID controller
Proportional range
Characteristic line
Characteristics
A pure P controller works theoretically undamped, i.e. it is fast and dynamically favourable. It has a
residual control difference, i.e. it does not completely eliminate the effects of disturbances and is thus
relatively unfavourable from a static viewpoint.
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Step response