D-Portion - Burkert 8692 Operating Instructions Manual

39.3

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
Figure 142: 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.
240
(6)
X
Xd
Y
Step response
english
Type 8692, 8693
Additional technical information
X
t
Y
t
Ramp response