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 Cntrcontrol 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)toa
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 = 20and rnG.H =
150 in Conf / Cntrmust 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 or¼xt2.
Parameter extensions
Operating note KS 50-1 TCont 13
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