Patent ID: 9709293
Date: 2017-07-18
CPC Classifications: F24F,G05B,G05D

Claim:
1. A controlling device comprising: a set point obtaining portion that obtains a set point SP from a feedback control system that calculates, and outputs to an actuator, a manipulated variable MV based on the set point SP, which indicates a target condition for a control object, and on a process variable PV that is a measured value for the state of the control object; and an actuator controlling portion that changes a gain of the actuator so as to have an effect wherein a change of the process variable PV that is produced through a change in the gain of the actuator tracks a change in the set point SP; wherein the actuator controlling portion, after changing the gain of the actuator in accordance with a change in the set point SP, changes the gain of the actuator in accordance with time that has elapsed since the point in time of the change of the set point SP, so as to return to the value of the gain from prior to the change.