| 摘要 |
PURPOSE:To reduce the power consumption and to lessen the vibrating noise generated at the time of no-load running of the subject clutch motor by a method wherein an antiparallel-connected SCR, which is connected in series to the motor, a detecting device to be used for detecting the position of a control lever and an SCR controlling device are provided and the applied voltage at no-load operation is reduced. CONSTITUTION:A bilateral 3-terminal SCR 20 and the like connected in eries to the clutch motor 19, a detecting device 21 to be used for detection of the position of a control lever 17 and a conrolling device 22 which outputs a described gate signal to the SCR 20 are provided. By shifting the position of the control lever 17, the detecting device 21 detects the position and a gate signal, which performs the phase control established at the SCR in advance, is outputted. As a result, the voltage applied to the motor when it is in no-load running is reduced, thereby enabling to reduce the vibrating noise and the power consumption. |
