Butterworth Configuration; Editing The Closed-Loop Poles; Slider And Plot Ranges - National Instruments Xmath Interactive Control Design Module ICDM User Manual

Chapter 6 Pole Place Synthesis

Butterworth Configuration

Editing the Closed-Loop Poles

Slider and Plot Ranges

Xmath Interactive Control Design Module
A circle of radius F
avg
circle to change F .
avg
Click the Butterworth button to move the poles to a Butterworth
configuration, preserving F
set to Butterworth.
You can change the closed-loop poles two ways: by editing or by grabbing
and dragging them. Both of these methods are described in the
Plotting Features section of Chapter 2,
To change the ranges of the Frequency Scaling slider or the plot of
closed-loop poles, select View»Ranges or press <Ctrl-R> in the Pole Place
window.
The slider range also will be changed automatically if you type a new value
which is outside the current range in the variable edit box. The plot also can
be re-ranged interactively by grabbing and dragging the plot axes; refer to
the General Plotting Features
Design.
Selecting View»Auto-scale or pressing <Ctrl-A> in the Root Locus
window will cause new ranges to be assigned to the slider and plot,
based on the current controller.
also is displayed in the plot. You also can drag the
. The initial pole configuration also is
avg
Introduction to SISO
section of Chapter 2,
6-6
General
Design.
Introduction to SISO
ni.com