| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller that is of a cost-effective structure and capable of stopping a motor with precision. <P>SOLUTION: This motor controller, which controls the rotation and stoppage of the motor by motor control signals, is configured to be capable of detecting that a plurality of light-intercepting plates have crossed a sensor. A DC motor is rotated by a motor remote signal, when a lifting mechanism is lifting. When the sensor rotates 1/4 and detects the light-intercepting plates after the lapse of time T1/4, the remote signal is turned off, after the lapse of time T4 with the displacement when the motor stops taken into consideration. When the nearest light-intercepting plate of a plurality of the light-intercepting plates is detected during lowering of the lifting mechanism, the remote signal is turned off, after the lapse of time T5 with the displacement, when the motor stops to eliminate the displacement of a stop position of the DC motor, is taken into consideration. <P>COPYRIGHT: (C)2007,JPO&INPIT |
