D-Portion; Type - Burkert 8792 Operating Instructions Manual

44.3.

d-portion

Function:
d X d
= ⋅
Y K d
t d
Kd is the derivative action coeffficient. The larger Kd is, the greater the D-effect is.
Characteristic.and.step.response.of.the.I.portion.of.a.PID.controller
X
Xd
Y
Step response
Fig. 119: Characteristic and step response of the D portion of a PID controller
Properties
A controller with a D portion responds to changes in the control variable and may therefore reduce any control dif-
ferences more quickly.
210
(6)
t
t
english
X
Y
Ramp response

Type 8792, 8793

Additional technical information