| 摘要 |
PURPOSE:To specify variation completion times of all parts by a method wherein through comparison with calculated paper making speed difference variation times of parts with each other, a longmost time is selected, a paper making speed variation ratio by means of which a time in which variation from a present paper making speed difference to a subsequent paper making speed difference is effected is specified at all parts is computed at each part. CONSTITUTION:From the set value of a paper making speed difference setter 8 and the set value of a paper making speed difference variation ratio setter 11, the paper making speed difference variation time of each part is calculated by a paper making speed difference variation time computer 12 of each part. By comparing paper making speed difference variation times of parts with each other by means of a time comparator 13, a longmost time is determined therefrom to output a time selection value T. From the time selection value T of the time comparator 13 and the set value of the paper making speed setter 8 of each part, the paper making speed variation ratio of each is newly calculated by a paper making speed difference variation ratio computer 14. A speed reference computing circuit 10 of each part receives the paper making speed reference of a paper making speed difference reference setter 9, the set value of the paper making speed difference setter 8, and the time selection value T of the time comparator 13 to compute a speed reference at each part. The computing value is inputted as the speed reference of each part to a drive control device 7 of each part to control the speed of an electric motor 6 for driving each part. |
