| 摘要 |
PURPOSE:To improve the follow-up operability and stability, by executing the interrupt service whenever the speed detection data takes effect. CONSTITUTION:When an interrupt signal 6a is inputted, a microcomputer 2 finds the actual current of a DC machine 4 at first, then finds the actual speed of it and also finds a control signal (TM) so that the deviation between this actual speed and a speed command signal 1a may be corrected. On the other hand, when a data confirmation signal 7b of a pulse converter 7 goes to 'L' level, an interrupt takes place. The actual speed of the DC machine 4 is hence found and a control signal (TM') through which the deviation between the actual speed and the speed command signal 1a will be corrected is then found. Then, based on the difference between the control signal TM or TM' and the actual current such a control signal 2a is found that can correct the difference, which is sent out to a motor driving gear 3. |
