公开(公告)号：US20170341906A1

公开(公告)日：2017-11-30

申请号：US15537447

申请日：2015-11-13

Applicant: Inventio AG

Inventor： Rudolf J. Muller ,  Eric Birrer

IPC: B66B5/00 ,  B66B13/22 ,  B66B19/00 ,  B66B9/00

CPC classification number: B66B5/0093 ,  B66B5/0031 ,  B66B9/00 ,  B66B13/22 ,  B66B19/007

Abstract: A safety switching for elevator systems includes a safety function and a safety switch dedicated to the safety function. The safety switch opens or closes a safety circuit between one connection point and a second connection point as a function of a safety state of the safety function. A test function tests whether or not the safety switch opens and closes the safety circuit as a function of the safety state of the safety function. A detection device is provided for the test function. An auxiliary energy function is provided wherein an auxiliary voltage can be temporarily applied via at least the safety switch and an input part of the detection device for performing the test function. Locally between the connection points the auxiliary energy function introduces an auxiliary energy for generating the auxiliary voltage. The safety switching can be used for converting or retrofitting an existing elevator system.

公开(公告)号：US10526169B2

公开(公告)日：2020-01-07

申请号：US15537447

申请日：2015-11-13

Applicant: Inventio AG

Inventor： Rudolf J. Muller ,  Eric Birrer

IPC: B66B1/34 ,  B66B5/00 ,  B66B13/22 ,  B66B19/00 ,  B66B9/00

Abstract: A safety switching for elevator systems includes a safety function and a safety switch dedicated to the safety function. The safety switch opens or closes a safety circuit between one connection point and a second connection point as a function of a safety state of the safety function. A test function tests whether or not the safety switch opens and closes the safety circuit as a function of the safety state of the safety function. A detection device is provided for the test function. An auxiliary energy function is provided wherein an auxiliary voltage can be temporarily applied via at least the safety switch and an input part of the detection device for performing the test function. Locally between the connection points the auxiliary energy function introduces an auxiliary energy for generating the auxiliary voltage. The safety switching can be used for converting or retrofitting an existing elevator system.