| 摘要 |
Provided is an elevator brake control device which can control the increase of the winding current when not needing applying brake after the brake is released and the action hysteresis is not happen, thereby can reduce the collide sound during braking. In the elevator brake control device, a winding current energizing circuit (15) comprises: a winding current instruction unit (24) for instructingthe current flow electromagnetism windings (11a, 11b); a current detecting unit (25) for detecting the current of the electromagnetism windings; a winding current controlling unit (26) for inputting the instruction for the winding current instruction unit and the detection value for the current detecting unit in order to control the current of the electromagnetism windings; and a winding current supply unit (22) for making the current of the winding flow by the winding current controlling unit. When the brake is released, the winding current is controlled by any one of one to three ladder shaped current instructions, and when the brake is applied, the winding current is controlled by two ladder shaped current instructions. |
