| 摘要 |
PURPOSE:To perform the stopping operation by sufficiently utilizing the torque capacity of a motor by calculating the maximum deceleration rate matched to the motor and a driven unit at the time of controlling the stoppage of the driven unit at the constant position and preparing a deceleration speed reference corresponding to the rate. CONSTITUTION:A strip material 3 passed through a rolling machine 1 is passed through a deflector roll 2 and is wound on a winding machine 4. At this time, the winding coil diameter D2 at the time of starting the control of the tail end constant position stop is obtained from a signal of a detector 10 for detecting the fact that the tail end of the material 3 has passed through the machine 1 and signals of pulse oscillators 7, 8 of the machine 4, is inputted to a coil diameter arithmetic unit 21 to calculate the winding coil diameter D3 during the control, which is applied to an inertial moment arithmetic unit 22 and a torque arithmetic unit 23 to obtain the maximum deceleration rate by an arithmetic unit 24. The rate is applied to a speed reference arithmetic unit 25, and the tail end is stopped at the constant position of the machine 4. Accordingly, the capacity of the motor can be sufficiently utilized to perform the optimum time control. |
