公开(公告)号：US20220297977A1

公开(公告)日：2022-09-22

申请号：US17834267

申请日：2022-06-07

Applicant: KONE Corporation

Inventor： Ari JUSSILA ,  Atso KOSKINEN ,  Tommi VAINIO ,  Toni HIRVONEN

IPC: B66B1/34 ,  B66B5/02

Abstract: An elevator safety system includes an electronic safety controller running a software including a monitoring mode for monitoring the position of an elevator car within a hoistway. The system includes a position measurement device for measuring the elevator car position. There are limit position identification markers being installed in the hoistway for defining a starting point of a final movement zone in which the car is still allowed to run in a direction to the outermost ends of the hoistway. However, as soon as the end of the final limit zone is reached by the car, an emergency stop is triggered. The position data for the final limit zone are laid down in a memory of the safety controller as parametrized data for being able to adjust them if so needed. Therewith, it can be avoided that the hardware components in the shaft have to be replaced.