FA275096
30 September 2021
The three settings in
PID stand for
Proportional,
Integral and
Derivative.
1 - Start with
I and
D set at 0.
2 - Increase the
P until a change in rpm setpoint causes the motor speed to change to the new setting without overshooting. If overshooting occurs, reduce the
P.
3 – Enter a value for
I. The
I is to remove the steady state error. If
I is too large, motor speed will oscillate.
4 – Finally enter a value for
D. Often
D is best left at 0. Increase the
P value until you get a little overshoot. Now add some
D and see if the overshoot can be removed. Too much
D and the steady state motor speed is not stable but rather moves around a bit with noise. If this is the case reduce or remove
D.
