| 摘要 |
PROBLEM TO BE SOLVED: To make it unnecessary to perform any troublesome operation such as the change of control parameter setting according to temperature to be controlled, and to suppress the generation of any hunting or overshoot. SOLUTION: A proportional gain Kp, an integration time Ti, and a differential time Td are corrected by correcting means 7 and 13 by using a linear approximation formula according to a detected temperature PV, and the correction of a gain and a time constant according to the temperature is automatically operated.
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