| 摘要 |
PURPOSE:To enable a smooth control of a motor by suppressing the variation of a torque command due to the variation in the computed speed or acceleration using a pulse counted value. CONSTITUTION:A CPU701 of a microcomputer board 7 takes the difference between the speed command and the motor speed, proportionally controls or integrates the difference, or functionally varies the proportional gain in response to the magnitude of the speed deviation to generate torque command. Further, the torque command is compared with the loaded current value, and a firing command is applied to a thyristor 5 to cancel the deviation. The variation in the torque command can be suppressed by using means for varying the proportional gain as described above, and the motor can be smoothly controlled. |
