Checking The Control Parameters; Example - Siemens LMV5 Series Basic Documentation

Checking the control
parameters

Example

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Optimum adaption of the controllers to the controlled system can be checked by
recording the actual value during startup while the controlled system is working. The
diagrams below reveal incorrect settings and give hints on remedy.
Here, the behavior of a controlled system of the 3
The procedure for setting the control parameters can also be applied to other types of
controlled systems.
Practical value for «TN : TV» = 4...6.
XP too small
Tn and Tv too small
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Basic Documentation LMV51...
6 Temperature or pressure controller (internal load controller LC)
rd
order for a PID controller is shown.
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Optimum setting
XP too great
Tn and Tv too great
t
CC1P7550en
01.10.2003
t
t