Electronic information plate of an elevator component

    公开(公告)号:US11472667B2

    公开(公告)日:2022-10-18

    申请号:US16281916

    申请日:2019-02-21

    Abstract: Elevator components can be equipped with an electronic information plate. The electronic information plate are associated with a particular electronic information plate that can store different properties of the associated component. The content of each electronic information plate is read manually or automatically and transmitted to a controller. The controller analyzes the received content and launches a predetermined action if the content indicates a possible mistake or a fraud.

    ELEVATOR SAFETY SYSTEM, METHOD FOR COLLISION PROTECTION IN AN ELEVATOR SYSTEM, AND ELEVATOR SYSTEM

    公开(公告)号:US20220106163A1

    公开(公告)日:2022-04-07

    申请号:US17474382

    申请日:2021-09-14

    Abstract: An elevator safety system includes an elevator control unit configured to: monitor an elevator shaft, receive a position, a movement direction, and a speed of at least one elevator car arranged into the elevator shaft, and determine dynamically at least one authorized shaft section based on the monitoring, and on the position, the movement direction, and the speed of at least one elevator car, and to provide an authorization to the at least one elevator car to move, such as by a linear motor, in or into the authorized shaft section of the elevator shaft. The elevator safety system further includes at least one elevator car controller configured to: provide the position, the movement direction, and the speed of the at least one elevator car to the elevator control unit, and receive the authorization. The elevator control unit and the elevator car controller are arranged to be in communication with each other.

    Sensor connecting unit, safety system and elevator

    公开(公告)号:US11242221B2

    公开(公告)日:2022-02-08

    申请号:US15270750

    申请日:2016-09-20

    Abstract: A sensor connecting unit includes a safety input for connecting with a sensor; a power supply that is controllable through a controllable power switch; and a first I/O processing unit and a second I/O processing unit being connected to each other through a reciprocal comparison communication channel. The first I/O processing unit and the second I/O processing unit are both connected through a measurement circuit to measure voltage, current or power between a reference input and the safety input, and connected to a safety bus. The first I/O processing unit informs the second I/O processing unit about switching off of the controllable power supply, the second I/O processing unit commands the first I/O processing unit to switch off the controllable power supply, and/or the second I/O processing unit measures an output of the controllable power switch to detect switching of the power switch.

    Current cut-off arrangement of an elevator

    公开(公告)号:US11097922B2

    公开(公告)日:2021-08-24

    申请号:US15969527

    申请日:2018-05-02

    Abstract: The arrangement comprises a drive driving an electric motor, a contactor and a control circuit connecting a control coil of the contactor to a power supply. The control circuit comprises a manual control part provided with a manually operated first switch, and an electronical control part provided with an electronically operated second switch and a processor controlling the second switch. The first switch and the second switch are connected in series in the control circuit with the power supply and the control coil of the contactor so that de-energization of the control coil of the contactor may be done either by the first switch or by the second switch.

    Elevator safety arrangement having earth fault detection

    公开(公告)号:US10934133B2

    公开(公告)日:2021-03-02

    申请号:US15804583

    申请日:2017-11-06

    Abstract: A safety arrangement of an elevator and a method for monitoring electrical safety in an elevator system is disclosed. The safety arrangement of an elevator includes a motor drive of the elevator, which motor drive includes a main circuit, an accessible conducting part, which is earthed, an insulator, which is adapted to electrically insulate the aforementioned conducting part from the aforementioned main circuit and also a monitoring circuit, which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part. The monitoring circuit is configured to form a signal indicating the danger of electric shock in the motor drive of the elevator, if the aforementioned earth fault is diagnosed.

    METHOD AND ARRANGEMENT FOR TESTING THE CAR STRUCTURES OF AN ELEVATOR AND/OR FOR ADJUSTING A LOAD WEIGHING DEVICE

    公开(公告)号:US20180282121A1

    公开(公告)日:2018-10-04

    申请号:US16002073

    申请日:2018-06-07

    Abstract: The object of the invention is a method and an arrangement for testing the car structures of an elevator and for adjusting a load-weighing device in an elevator provided with a load-weighing device, in which elevator the elevator car is adapted to travel in the elevator hoistway via one or more traction members and suspension members that are separated from each other. For testing the car structures of an elevator and for adjusting a load-weighing device the elevator car is held in its position with a separate arresting means, which is connected to a measuring means measuring tensile stress, and the elevator car is driven upwards with the own hoisting machine of the elevator while at the same time measuring with the measuring means the tensile stress produced in the arresting means.

    ELEVATOR SAFETY ARRANGEMENT HAVING EARTH FAULT DETECTION

    公开(公告)号:US20180057308A1

    公开(公告)日:2018-03-01

    申请号:US15804583

    申请日:2017-11-06

    Abstract: A safety arrangement of an elevator and a method for monitoring electrical safety in an elevator system is disclosed. The safety arrangement of an elevator includes a motor drive of the elevator, which motor drive includes a main circuit, an accessible conducting part, which is earthed, an insulator, which is adapted to electrically insulate the aforementioned conducting part from the aforementioned main circuit and also a monitoring circuit, which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part. The monitoring circuit is configured to form a signal indicating the danger of electric shock in the motor drive of the elevator, if the aforementioned earth fault is diagnosed.

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