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4 controller influence, Controller influence, 5function blocks – Lenze E94A User Manual

Page 502

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5

Function blocks

5.132

L_SdProcessController - PID controller with limitation

502

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 %