User guide

5 Function blocks
5.132 L_SdProcessController - PID controller with limitation
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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Characteristic examples
[5-1] Example 1 (Lenze setting)
[5-2] Example 2
5.132.3 System deviation in the area of reduced sensitivity
A reduced controller dynamics with low system deviations causes a positive influence on the dam-
ping behaviour of the control loop.
• C04377 serves to set a tolerance window, in which the system deviation is transferred to the
controller with a slight gain.
• C04376 serves to set the required gain reduction in the defined tolerance window in percent.
5.132.4 Controller influence
The dnInfluence_n input serves to evaluate the dnOut_n controller output in percent. The evaluated
output signal is provided at dnOutRed_n.
1 2 3 4 5
x
0 % 100 % 0 %0 %0 %
Y
100 % 100 % 0 % 0 % 0 %
y
x
x2, y2
I.II.
x1, y1
200 %-200 %
0%
200 %200 %
1 2 3 4 5
x
40 % 90 % 100 % 0 % 0 %
Y
40 % 140 % 115 % 0 % 0 %
y
x
x3, y3
x2, y2
I.II.
x1, y1
200 %-200 % 0%
200 %