More Information - GE Uniflux 10 Instrucciones De Funcionamiento

D PID control and feedback tuning
D.3 More information
D.3

More information

Introduction
This section describes tuning and adjustments and related troubleshooting.
Tuning the PID parameters
If tuning of the PID control is required, it is most likely that control settings for feed pump
or permeate pump need to be adjusted.
Common methods for PID optimization (e.g. Ziegler-Nichols method) can be applied.
Faster and slower response
Condition
If slower, more stable control is required
If faster (less stable) control is required
If the system tends to overshoot intially
If the system tends to keep on oscillating after the
error has been eliminated
Adjustment rate
No drastic changes should be applied.
An appropriate measure is to change the I parameter by a factor of 0,5 or 2, respectively,
while initially keeping the P parameter constant.
Faster regulation required
When optimizing the parameters to obtain a faster regulation, a recommended start
may be to do the following:
264
Then do the following...
Increase I
Decrease P
Decrease I
Increase P
Decrease D
Decrease I
Decrease P
Increase D
UniFlux 10 Instrucciones de funcionamiento 28993587 AE