| 摘要 |
<p>PURPOSE:To fully display the function of a plate thickness control action and to obtain the plate thickness with high accuracy by directly making plate thickness deviation signals at the inlet side of a rolling mill into input signals for the plate thickness control action and adding an integrator to an outlet side plate thickness deviation signal of a roll position control action. CONSTITUTION:An inlet side plate thickness deviation HF obtained by an inlet thickness meter 4 of a rolling mill is adjusted by a transport lag time correction device 11 to the extent of a transport lag time and is outputted as an outlet side plate thickness deviation hF, which is expressed in terms of a roll position control amount SF* by a plane thickness control converter 17. On the other hand, deviations h between outlet side thickness (h) momently outputted from an outlet side plate thickness calculator 12 and the reference plate thickness hOB from a reference outlet side plate thickness calculator 13. The value of the h is integrated by an integrator 18 and a roll position control amount SR* is outputted. An addition signal S* of the control amount SF* and the SR* is outputted from an adder 19 to control a roll position.</p> |
