JUMO 705010 mTRON T - Multichannel Controller Module Operating Manual - Manual (Page 79)

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6 Configuration
Checking the optimization
You can check for optimum adjustment of the controller to the control path by recording the
startup process (e.g. with "Startup") with a closed control loop. The diagrams below indicate
possible incorrect adjustments and correction of these.
Here, the guiding behavior of a third-order control path for a PID controller is plotted as an ex-
ample. The procedure for setting the controller parameters can also be applied to other control
paths.
Proportional band Xp too large Reset time Tn and derivative time Tv too short
Proportional band Xp too small Reset time Tn and derivative time Tv too long
Cycle time Cy too great Optimum setting