Burkert Type 1110 - Handbuch (Seite 87)

1110 - 85
DIGITAL INDUSTRIAL CONTROLLER
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Characteristic Step response
Characteristics
A pure I controller eliminates the effects of occurring disturbances completely.
Therefore, it has a favorable static response. Owing to its finite manipulating speed,
it operates more slowly than the P controller and tends to oscillate. Therefore, it is
relatively unfavorable from the dynamic point of view.
D component:
Funktion: CO = Kd
Kd is the derivative action coefficient.
The higher Kd is, the stronger the D influence is.
Step response Rise response
Characteristics:
A controller with a D component reacts to changes in the controlled variable and is
accordingly capable of dissipating occurring deviations faster.
dPVd
dt