| 摘要 |
PURPOSE:To facilitate PID adjustment and to improve versatility by inputting a limit sensitivity value, limit period value, and dead time value and finding a proportional gain, integral time, and differential time, and then outputting an optimum manipulated variable based upon the respective found values. CONSTITUTION:A PID controller inputs a limit sensitivity value KC, dead time value L, and limit period value PC, and respective function generating elements 1, 2, and 3 output proportional coefficients alphaK, alphaI, and alphaD. A PID control arithmetic element 5 inputs a proportional gain value KP, integral time value T1, and differential time value TD from multiplying elements 11, 12, and 13, and also inputs an external control command value SV and fed-back controlled variable PV to perform control arithmetic, and thus outputs an optimum manipulated variable MV to perform feedback control. |
