1 General Part -- Fundamental control technology terms
Manual
SIPART DR21
C73000-B7476-C143-08
11
D
PD controller, step-forced response
In the case of the PD controller, the decaying D component is superimposed on the P com-
ponent. The D component depends on the derivative action gain Vv and the derivative action
time Tv.
y
t
Tv
Vv
Kp
·
Vv
·
xd
Kp
·
xd
y
O
= 0
Figure 1-4 Step-forced response of PD controller
D
PI controller, step-forced response
In contrast to the P controller, a steady-state deviation is prevented in the PI controller by
the integral component.
A characteristic of the integral component is the integral action time Tn.
y
t
Kp
·
xd
Tn
Figure 1-5 Step-forced response of PI controller
D
PID controller, step-forced response
The PID controller results in improvement of the dynamic control quality as a result of the
additional application of a D component.
Refer to the PD and PI controllers.
y
t
Kp
·
xd
Tn
Tv
Vv
Figure 1-6 Step-forced response of PID controller
Summary of Contents for SIPART DR21
Page 1: ...SIPART DR21 C73000 B7476 C143 08 1 SIPART DR21 6DR 210 Edition 08 2010 Manual ...
Page 2: ...SIPART DR21 C73000 B7476 C143 08 2 ...
Page 148: ...4 Installation 4 2 Electrical Connection Manual 148 SIPART DR21 C73000 B7476 C143 08 ...
Page 180: ...5 Operation 5 5 CPU self diagnostics Manual 180 SIPART DR21 C73000 B7476 C143 08 ...
Page 242: ...Manual 242 SIPART DR21 C73000 B7476 C143 07 ...