| 摘要 |
<p>In an elevator apparatus, a brake control device comprises a first brake controller for operating a braking device to bring a cage to an emergency stop when an abnormality is detected and a second brake controller for reducing braking force of the braking device when the deceleration of the cage reaches a threshold value or more during the emergency braking operation of the first brake controller. The second brake controller includes a first and a second computation unit for performing the operation of reducing the braking force of the braking device by computation processing independently of each other, the threshold value is set in the first computation unit so as to vary according to the cage position, and the threshold value is set in the second computation unit in the same manner as in the first computation unit.</p> |
