Omron SYSDRIVE 3G3MV - PID Fine Tuning

6-24
4. Increase the integral (I) time in n131 within a range causing no vibration.
5. Increase the derivative (D) time in n132 within a range causing no vibration.
6-3-8 PID Fine Tuning
·Refer to the following to tune in PID parameters exactly.
·Suppression of Overshooting
Setthederivative(D)timetoasmallervalue andtheintegral(I)time toalargervalueif
overshooting results.
Response
Before fine tuning
After fine tuning
Time
·Prompt Stability
Settheintegral(I)timetoasmallervalueandthederivative(D)timetoalargevaluefor
prompt stability control, even though overshooting results.
Response
Before fine tuning
After fine tuning
Time
·Suppression of Long-cycle Vibration
Vibrationwithawavelengthlongerthantheintegral(I)timeresultsfromexcessiveinte-
gral control. The vibration canbesuppressedby setting the integral (I) time to a larger
value.
Response
Before fine tuning
After fine tuning
Time
Advanced Operation Chapter 6