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1 Technical Description
1.5 Functional Description
1.5.8 Complex Functions (Arithmetic blocks c, d, h)
D Adaptation
The adaptation procedure represents a reliable and easy to operate commissioning tool. The
adaptation procedure is far superior to manual optimization especially on slow controlled
systems and in PID controller designs. It is activated by the operator and can be aborted at
any time in the event of danger. The parameters determined by the adaptation can be
changed and accepted specifically by the user. Unilinear controlled sistems can also be
mastered in connection with the parameter control.
In the parameterization mode AdAP which is only accessible in manual mode of the control-
ler and AV input = High (adaptation preselection), the following presettings are made for the
adaptation procedure:
tU
Monitoring time
dPv
Direction of step command
dY
Amplitude of step command
tU is saved
Restart batt no
batt YES = previous value
y
x
x
M
Model process x
M
-10
0
Start ID
ID fixed state
Start of adaptation
Figure 1--40 Time process of an adaptation without error messages in which tU = 2 x T95
The adaptation principle is divided into line identification and controller design.
-
Line identification
The controller is driven to the desired working point manually. By pressing the Enter key
the set manual manipulated variable is changed by a step adjustable in the direction
(dPv) and amplitude (dY). In K-controllers the y-step is output directly. The y-step is
output at the end of 10 % of the set monitoring time (tU) if there was a fixed state of the
84
= oFF
F(n,T) = min
x measuring
process
67 %
50
Δy
y
manual
Δx = ks ⋅ Δy
100
End va-
lue ID
Manual
tU
% tU
SIPART DR24 6DR2410
C79000-G7476-C153-03
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