| 摘要 |
PURPOSE:To change over torque and the direction of rotation without mounting an intermediate tap by connecting a pair of winding of the motor to a rotation direction changeover switch and a torque changeover switch through a specified method. CONSTITUTION:The rotation direction changeover switch RS selectively closing contacts connected at each one end of a pair of the winding L1, L2 of the motor M and the torque changeover switch changing over the winding L1, L2 to parallel connection or series connection to a power supply are mounted. The second torque changeover switch changing over the winding so that a capacitor C for starting is connected in series with another winding even when the switch RS is closed to either winding side when the winding L1, L2 are connected in parallel and the capacitor C is connected in parallel with either one winding with the changeover of the switch RS when the winding L1, L2 are connected in series is set up. The torque changeover switch TS as shown in the figure is mounted, and a circuit of the figure A when the switch TS is closed to a full line condition or one of the figure B when it is closed to a broken line is formed. |
