5
Parameter extensions
The KS 50-1
TCont
parameters are extended by the following settings compared
to the standard version.
q
Self-tuning switch-off
For
Cntr
control and adaptation, parameter
OrEl
is used to permit self-tuning.
Cntr
Name
Range
Description
Default
OrEl
Enable self-tuning at control operation start
0
0
Self-tuning permitted
1
Self-tuning not permitted
+
Hints on self-tuning
To meet the special requirements of fast control loops, e.g. with tempering units,
the following information should be taken into account.
g
By setting the input filter for measurement input 1 (
Para
/
InP.1
/
t.F1
) to a
filter time
≥
15 s, input variable fluctuations can be reduced, i.e. earlier settling of
the input variable.
g
To improve the optimization result, the control range should be limited to the
actual range. For this purpose, the min. and max. control range limit must be
matched, e.g. with a range of 20
°
C ... 150
°
C, value
rnG.L
=
20
and
rnG.H
=
150
in
Conf
/
Cntr
must be set.
g
The minimum cycle times
t1
and
t2
should be as low as possible. If a defined
min. pulse duration must not be exceeded, changing during self-tuning can be
prevented via configuration parameter
Adt0
=
1
. Please, note that the shortest
pulses result from ¼ x
t1
or ¼ x
t2
.
Parameter extensions
Operating note KS 50-1
TCont
13
