Rockwell Automation 1441-DYN25-MRUC Run Up Coast Down Extension Module for the Dynamix 2500 - Manual (Page 27)

Rockwell Automation Publication 1441-UM006A-EN-P - May 2011 27
Run Up/Coast Down Extension Module Chapter 2
Display the Nyquist Plot
When you are done setting up the plot parameters, you can process the data and
display the Nyquist plot by pressing F3 (Display) on the RUCD - Nyquist Setup
screen.
The display shows the selected orders as complex data with zero degrees along the
positive X-axis and 90 degrees along the positive Y-axis:
• To sequence through the traces, press the Up and Down arrows. The order
number of the current trace is displayed in the top left corner of the screen.
To move the cursor along the trace, press the Left and Right arrows.
• From the Nyquist plot you can display the data in a table or Bode plot,
press 0 (Shift) and F4 (Table).
See Display the Table on page 30 for more information.
• To display the data in a Bode plot, press 0 (Shift) and then F1 (Bode).
See Display the Bode Plot on page 24 for more information.
TIP The larger the .wav file, the longer it takes to process the data
and display the plot.
Speed, magnitude, and Q
Factor at Cursor Location
Active Trace