D-Portion - EBRO ARMATUREN EP 501 C Operating Instructions Manual

Typ EP 501
Additional technical information
35.3.

D-portion

Function:
d X d
= ⋅
Y K d
t d
Kd is the derivative action coefficient. The larger Kd is, the greater the D-effect is.
Characteristic.and.step.response.of.the.D-portion.of.a.PID.controller
X
Xd
Y
Figure 113: 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.
(6)
Step response
X
t
Y
t
Ramp response
english
195