Rockwell Automation 1441-DYN25-MRUC Run Up Coast Down Extension Module for the Dynamix 2500 - Manual (Page 25)

Rockwell Automation Publication 1441-UM006A-EN-P - May 2011 25
Run Up/Coast Down Extension Module Chapter 2
• From the Bode plot you can also display the data in a Table format or
Nyquist plot. To display the data in a table, press 0 (Shift) and F4 (Table).
See Display the Table on page 30 for more information.
• To display the data in a Nyquist plot, press 0 (Shift) and F1 (Nyqst).
See Display the Nyquist Plot on page 27 for more information.
Displaying Measurements
Using a Nyquist Plot The Nyquist plot is a polar representation of the amplitude and phase angle as a
function of frequency. Three variables are combined into a single plot in polar
format.
Set Up the Nyquist Plot
1. Select Nyquist on the RUCD - Display Select screen and press F3
(Display).
The RUCD - Nyquist Setup screen appears.
2. Select the option and press the Right arrow to open a list of values.
3. Select or type in a parameter value.
4. Press the Left arrow to save your selection.
Use the descriptions in Nyquist Plot Parameters on page 26 to help you
configure the parameters.
5. When you are finished, press F3 (Display) to display the Nyquist plot.