User`s guide

Controller Design Using the Root Locus Design GUI
8-35
The step response looks good. However, to be certain that you’ve met your
design specifications, you can check the settling time and peak response
characteristics from the right-click menu. To do this:
1 Right-click anywhere in the plot region.
2 Select Settling Time from the Characteristics menu.
3 Set your mouse pointer to t he settling time marker and click to display the
value.
The LTI Viewer will look like this.
As you can see, the settling t ime is less than .05 seconds, and the overshoot is
less than 5 percent. You’ve met t he design specifications and you’re done. You
didn’t need your closed-loop poles to be entirely in the design region, because
you actually have a sixth-order system with some fast dynamics, as opposed to
having only a second-order system.
Marker for the
settling time