| 摘要 |
PURPOSE:To perform a stabilized speed control on a motor by a method wherein the amount of fluctuation corresponding to the fluctuation of the external environment is calculated by rotating the motor in a test mode based on the initial value data. CONSTITUTION:A DC motor 10 is test-operated by a control part 13 in a test mode based on the initial value data memorized in an initial value memory storage 16. At this time, the value of speed deviation, corresponding to the amount of fluctuation in accordance with the fluctuation of external environment, is calculated and said value is memorized in a deviation value distribution and accumulation part 15. When the test mode is finished, a constant speed mode constant data is calculated from the initial value data obtained from the initial value memory storage 16 and the deviation value obtained from the deviation value distribution and accumulation part 15, and the obtained value is memorized in a motor constant memory storage 17. The DC motor 10 is operated at the fixed speed based on the motor constant read out from the motor constant memory storage 17 in an operation mode. |
