| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to prevent overshooting and to reduce an inrush current at the time of a startup, disturbance input or else when the deviation in revolutions is large. SOLUTION: A motor revolutions control device sets a control voltage by the proportional and integral controls based on the deviation from a target revolutions by feeding back the actual revolutions of a motor 1, and controls the revolutions of the motor 1. A control means 3 is provided that stops the proportional control to perform the integral one when the deviation in revolutions is out of the proportional band or it deviates from the tolerance set within the proportional band. |
