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OMRON Sysdrive 3G3HV - Detector Cooling Section

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Integral Control<br />

The integrated deviation is obtained as control output from integral control. Integral control<br />

makes the feedback agree with the set point effectively. Integral control, however, cannot<br />

keep up with rapid feedback changes.<br />

Differential Control<br />

The differentiated deviation is obtained as control output from differential control. Differential<br />

control can keep up with rapid feedback changes.<br />

PID Control<br />

PID control makes use of the merits of proportional control, integral control, and differential<br />

control to perform ideal control.<br />

Types of PID Control<br />

The Inverter performs two types of PID control (i.e., differential data PID<br />

control and basic PID control). The Inverter usually performs differential<br />

data PID control.<br />

Differential Data PID Control<br />

Differential data PID control is a type of PID control which differentiates the feedback of<br />

values and keeps up with set point changes and control object changes.<br />

Set point<br />

Control<br />

object<br />

Feedback<br />

Basic PID Control<br />

Basic PID control may cause overshooting or undershooting when the set point changes if<br />

the response of differential control is adjusted to keep up with object changes.<br />

Set point<br />

Control<br />

object<br />

Feedback

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