Program features 139
Block diagrams
The figure below shows an application example: The controller adjusts the speed of a
pressure boost pump according to the measured pressure and the set pressure
reference.
ref
k
ti
td
i
dFiltT
errVInv
oh1
ol1
Frequency
reference
%ref =
...
.
..
A C T
P A R
F U N C
D R I V E
E N T E R
L O C
R E M
R E S E T
R E F
A C S 6 0 0
0 . . . 1 0 b a r
4 . . . 2 0 m A
3
3
2
Drive
PID control block diagram
Example:
Pressure boost pump
PIDmin
PIDmax
AI1
AI2
IMOT
%ref
Actual values
PID
Aotewell Ltd
www.aotewell.com
Industry Automation
HongKong|UK|China
+86-755-8660-6182