Handbook
Ucontrol
type-lines PXDM
Date 06/04
TBL02_55-GB06/04
Part.-No. 00153239-GB
Page 79 / 105
Mode
C
ontorl
ler ty
pe
KP c
om
ponent
/
%
KI c
om
ponen
t/
%
KD
c
om
ponent/
%
TI c
om
pone
nt/
%
1.01
Speed controller = no control function
2.01..
P
50
50
50
3
3.01..
P
50
50
50
3
4.01 . PID
50
50
50
3
5.01.. PID
50
50
50
3
6.01.. PID
50
50
50
3
Factoy setting, depending on selected
Mode
9.9 Controler configuration (controller type) and controller action )
The controller configuration is automatically carried out during selection of the application related mode of operation. The
factory presets in accordance with the mode of operation are based on many years of experience, which is suitable for
many applications. Under special circumstances, these can be individually adapted.
The
type of control
determines the method with which the controlled value behaves in case of a difference between the
target and current values. For this, the control technology has standard algorithms, which consist of a combination of
three methods:
Selection P, PID
P
control (
P
roportional component, proportion of the absolute deviation)
I
control (
I
ntegral component, proportion of the sum of all deviations))
D
control (
D
ifferential component, proportion of the last difference)
If needed, the most suitable combination for the respective control system can be
determined from these proportions.
With pure P controllers (controller type P), the following described settings do not
have any function!
P-component = reaction time
Setting range 0-200 %
smaller = more slowly
bigger = faster
I-component = accuracy,
correction time
Setting range 0-200 %
smaller = faster
bigger = more slowly
D-component = stability by
slower
correction time
Setting ragne 0-200 %
smaller = faster
bigger = more slowly
Integration time = correction time
Setting range 0-200 %
smaller = faster
bigger = more slowly
Experimental values:
During temperature regulation or condensing pressure control with sluggish control systems with many delays, a pure P-
controller is most suitable. This diminishes the control precision.
In air velocity control or pressure control for air conditioning with a fast control system and quick reaction times, PID
control is most suitable. The regulation precision is highest in this type of control.
In some cases, in which a sluggish control system is present but a precise target value regulation is necessary, a PI
variant (0 % for KD) can be the solution.
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Summary of Contents for Ucontrol PXDM Series
Page 80: ...Handbook Ucontrol type lines PXDM Date 06 04 TBL02_55 GB06 04 Part No 00153239 GB Page 80 105 ...
Page 92: ...Handbook Ucontrol type lines PXDM Date 06 04 TBL02_55 GB06 04 Part No 00153239 GB Page 92 105 ...
Page 96: ...Handbook Ucontrol type lines PXDM Date 06 04 TBL02_55 GB06 04 Part No 00153239 GB Page 96 105 ...
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