| 摘要 |
PURPOSE:To improve the rotating control of a motor by independently controlling a speed control loop and a phase control loop. CONSTITUTION:A motor rotation controller has the first frequency/voltage converter 4 which receives a reference signal having a reference frequency Fref, and the second frequency/voltage converter 5 which receives an encoder pulse from a speed detector 2 for detecting the rotating speed of a rotary motor 1. Further, a phase selector 6 which inputs the reference signal and the encoder pulse is provided. The outputs from the converters 4, 5 are added and subtracted, the results are added and subtracted by the output from the detector 6, and input to a servo amplifier 3. Thus, the controllability of the motor can be improved. |
