Figure f.1, Figure f.2, Out (see – Rockwell Automation 22B PowerFlex 40 FRN 1.xx - 6.xx User Manual

Page 154: Figure f.3

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F-10

PID Set Up

PowerFlex 40 Adjustable Frequency AC Drive FRN 1.xx - 6.xx User Manual
Publication 22B-UM001H-EN-E

The following figures show some typical responses of the PID loop at
different points during adjustment of the PID Gains.

Figure F.1 Unstable

Figure F.2 Slow Response – Over Damped

Figure F.3 Oscillation – Under Damped

Figure F.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

22B-UM001.book Page 10 Wednesday, January 22, 2014 11:04 AM

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