Figure d.1, Figure d.2, Out (see – Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx User Manual
Page 187: Figure d.3, Increase
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Application Notes
D-11
PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22C-UM001I-EN-P
The following figures show some typical responses of the PID loop at
different points during adjustment of the PID Gains.
Figure D.1 Unstable
Figure D.2 Slow Response – Over Damped
Figure D.3 Oscillation – Under Damped
Figure D.4 Good Response – Critically Damped
PID Feedback
PID Reference
Time
PID Feedback
PID Reference
Time
PID Feedback
PID Reference
Time
PID Feedback
PID Reference
Time
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