| 摘要 |
PROBLEM TO BE SOLVED: To prevent step-out of a movable segment or a rotor, when electromagnetic brake applied to the movable segment or the rotor of a pulse motor is released. SOLUTION: When brake applied in one direction to the movable segment 2 or a rotor of a pulse motor 1 by an electromagnetic brake 3 is released, a driving equipment 5 for exciting the pulse motor 1 and a control equipment 6 for controlling the driving equipment 5 and the electromagnetic brake are used. The control equipment 6 excites the pulse motor by the driving equipment. In order to move the movable segment or the rotator in the other direction, the motor excitation phase is changed over a specfic number of times or more. Next the electromagnetic brake 3 is released in such a manner that step-out of the movable segment or the rotor is not generated. |
