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Parker Hannifin 88-021610-01G User Manual

Page 89

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Parker Hannifin

Chapter 5 Tuning 89

Step 9

After lowering the SGV

gain to 3 (even less than in
Step 7—3.5), chattering
stops.

Next we should lower the
SGP gain.

Step 10

Overshoot is reduced very
little after lowering the SGP
gain to 3.5. (The SGV
gain

might have been lowered
too much in Step 9.)

Next, we should try raising
the SGV gain again until

the overshoot is gone.

Step 11

When we raised the

SGV

gain to 3.5, the step
response became fast and
very stable.