I-Portion - Burkert 8692 Operating Instructions Manual

Type 8692, 8693
Additional technical information
39.2

I-portion

Function:
1
∫
=
Y X d t d
i T
Ti is the integral action time or actuating time. It is the time which passes until the actuating variable has run
through the whole adjustment range.
Characteristic.and.step.response.of.the.I.portion.of.a.PID.controller
Characteristic
Figure 141: Characteristic and step response of the I portion of a PID controller
Properties
A pure I-controller completely eliminates the effects of any malfunctions which occur. It therefore has a favorable
static behavior. On account of its final actuating speed control it operates slower than the P-controller and has a
tendency to oscillate. It is therefore dynamically relatively unfavorable.
(5)
dY
dt
X
Xd
Ymax
Xd
Ymin
Step response
english
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