| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller that is achieved at low cost, capable of speedily stopping a rotor at a prescribed stop position when stopped, and capable of speedily starting the rotor when started. <P>SOLUTION: The motor controller 1 includes a brushless motor 22 that is arranged as a driving source for conveying paper and has a rotor 24 and a stator 23, an encoder 31 detecting a rotation position of the rotor 24 and a control unit 10 controlling the brushless motor 22 based on the rotation position of the rotor 24, which is detected by the encoder 31 in a starting section, a regular section and a stop section of the brushless motor 22. The control unit 10 performs servo locking and stops the brushless motor 22 when the rotor 24 comes to a prescribed stop position with respect to the stator 23 based on the rotation position of the rotor 24, which is detected by the encoder 31, after rotational speed becomes stop possible speed in the stop section of the brushless motor 22. <P>COPYRIGHT: (C)2011,JPO&INPIT |
