11 Optimisation
76
11.2 Checking the optimisation
Start-up
procedure
The optimum adjustment of the controller to the process can be checked by
recording the start-up with the control loop closed. The diagrams below indi-
cate possible maladjustments and how these can be corrected.
Control
response
The control response of a third-order control loop of a PID controller is shown
as an example. However, the procedure for adjusting the controller parameters
can also be applied to other control loops.
Xp too large
Xp too small
Tn, Tv too large
Tn, Tv too small
optimum
setting
Cy too large
To Next Page
Loading...
