162
Appendix: Process PID control
A C S 6 0 0
3
0 1 0 b
a r
4 2 0 m
A
4.
4017
ACT2 INPUT:
If a second feedback is used, configure also this actual value
2 (
4020
ACT2 MINIMUM and
4021
ACT2 MAXIMUM).
5.
4001
GAIN,
4002
INTEGRATION TIME,
4003
DERIVATION TIME,
4005
ERROR
VALUE INV:
Configure the desired gain, integration time, derivation time and
error value inversion when needed.
6.
Activate PID output:
Check that
1106
REF2 SELECT is set to 19 (PID1OUT).
Pressure boost pump
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.
Example:
PID control block diagram
Pressure boost pump
%ref
ACS150
Actual values
4014
4001
4002
4003
ref
k
ti
td
i
PID
Frequency
0…10 bar
4…20 mA
.
.
4021
4004
dFiltT
4005
errVInv
reference
AI1
AI2
3
IMOT
PIDmax
PIDmin
...
oh1
ol1
%ref =
4010
Содержание ACS150 series
Страница 4: ......
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Страница 15: ...14 Safety ...
Страница 19: ...18 Introduction to the manual ...
Страница 39: ...38 Planning the electrical installation ...
Страница 51: ...50 Installation checklist ...
Страница 57: ...56 Start up and control with I O ...
Страница 69: ...68 Control panel ...
Страница 79: ...78 Application macros ...
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Страница 161: ...ji 4 I 5 I 6 4 J ...
Страница 162: ......
Страница 163: ...160 Dimension drawings ...
Страница 169: ...166 Appendix Process PID control ...
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