An elevator drive apparatus is described which comprises a drive unit (36, 37) for driving an elevator car (32), a brake device (35) for braking a motion of the elevator car (32), a detector (60) for detecting an electrical operation amount of the drive unit (36, 37), and a controller (50). The controller (50) is configured to release the brake device (35), to compare the detected electrical operation amount with a threshold, and to apply the brake device (35) when the detected electrical operation amount exceeds the threshold. In this way, it is ensured that a speed of the elevator car in case of a rescue situation is within a safety limit.
MOTION FEEDBACK IN AN ELEVATOR
BEWEGUNGSFEEDBACK IN EINEM AUFZUG
RÉTROACTION DE MOUVEMENT DANS UN ASCENSEUR
2019-06-12
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |