Abstract:
According to one aspect, there is provided an apparatus for operating an elevator car (102) of an elevator system, the elevator car (102) being driven by a belt (112). The apparatus comprises a wheel (120) configured to be connected to the belt (112) or to a diverting pulley (114) of the elevator system acting on the belt (112), and a mechanical interface (124) configured to provide a rotational motion to the wheel (120) to move the elevator car (102).
Abstract:
The invention relates to an elevator system and also to a method for monitoring electrical safety in an elevator system. The elevator system comprises a motor drive (1) for driving an elevator car, wherein the elevator system comprises a safety arrangement of an elevator. The safety arrangement comprises the motor drive (1) of the elevator, which motor drive comprises a main circuit (2), an accessible conducting part (3A, 3B, 3C, 3D, 3E), which is earthed, an insulator (4), which is adapted to electrically insulate the aforementioned conducting part (3A, 3B, 3C, 3D, 3E) from the aforementioned main circuit (2) and also a monitoring circuit (6), which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part (3A, 3B, 3C, 3D, 3E). The monitoring circuit (6) is configured to form a signal indicating the danger of electric shock in the motor drive (1) of the elevator, if the aforementioned earth fault is diagnosed. The safety arrangement comprises a drive prevention apparatus (8, 13) connected to the monitoring circuit (6), which apparatus is configured to remove the elevator from use when an earth fault is diagnosed.
Abstract:
Un procedimiento para ajustar dinámicamente un límite de velocidad de nivelación de una cabina de un ascensor durante una operación de nivelación, el procedimiento comprende: - obtener una indicación de que se detecta que la cabina del ascensor llega a una zona (102), - obtener al menos un valor que indica la velocidad de la cabina del ascensor, en respuesta a la detección de que la cabina del ascensor llega a la zona (104), y - ajustar dinámicamente el límite de velocidad de nivelación de la cabina del ascensor en base a la velocidad de la cabina del ascensor (106).
Abstract:
The invention relates to an elevator system and also to a method for monitoring electrical safety in an elevator system. The elevator system comprises a motor drive (1) for driving an elevator car, wherein the elevator system comprises a safety arrangement of an elevator. The safety arrangement comprises the motor drive (1) of the elevator, which motor drive comprises a main circuit (2), an accessible conducting part (3A, 3B, 3C, 3D, 3E), which is earthed, an insulator (4), which is adapted to electrically insulate the aforementioned conducting part (3A, 3B, 3C, 3D, 3E) from the aforementioned main circuit (2) and also a monitoring circuit (6), which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part (3A, 3B, 3C, 3D, 3E). The monitoring circuit (6) is configured to form a signal indicating the danger of electric shock in the motor drive (1) of the elevator, if the aforementioned earth fault is diagnosed. The safety arrangement comprises a drive prevention apparatus (8, 13) connected to the monitoring circuit (6), which apparatus is configured to remove the elevator from use when an earth fault is diagnosed.
Abstract:
According to an aspect, there is provided an elevator communication system. The system comprises at least one ethernet bus segment, a controller communicatively connected to the at least one ethernet bus segment, and a plurality of elevator system nodes communicatively connected to the at least one ethernet bus segment. The controller is configured to determine a fault situation in the elevator communication system and cause reduction of the data communication via the at least one ethernet bus segment based on the fault situation.
Abstract:
Un procedimiento para controlar un ascensor que comprende una cabina (10) con al menos dos puertas de cabina (12A, 12B, 12C), estando provista cada puerta de cabina (12A, 12B, 12C) de un contacto de puerta (A1, A2, A3), un hueco (20) que está provisto de correspondientes puertas de rellano (22A, 22B, 22C), estando provista cada puerta de rellano (22A, 22B, 22C) de un contacto de puerta (B1, B2, B3), abriéndose cada puerta de rellano (22A, 22B , 22C) en sincronismo con la correspondiente puerta de cabina (12A, 12B, 12C), formando parte los contactos de puerta (A1, A2, A3, B1, B2, B3) de un circuito de seguridad (SC) del ascensor, caracterizado por una entrada de contacto de puerta de cabina (IP2) que está conectada a un punto medio en el circuito de seguridad (SC) entre una conexión en serie de los contactos de puerta de cabina (A1, A2, A3) y una conexión en serie de los contactos de puerta de rellano (B1, B2, B3), comprendiendo el procedimiento: monitorizar una información de estado de la entrada de contacto de puerta de cabina (IP2) para determinar si los contactos de puerta (A1, A2, A3, B1, B2, B3,) están operativos o no cuando las puertas de cabina (12A, 12B, 12C) se abren y/o se cierran con un retraso de tiempo predeterminado en un rellano (L1, L2).
Abstract:
The present invention concerns an elevator comprising: an elevator shaft (1) defined by surrounding walls and top (3A) and bottom (3B) end terminals; an 5 elevator car (4) vertically movable in the elevator shaft (1); an elevator hoisting machinery (6) adapted to drive an elevator car (4); an electromechanical braking apparatus (12A, 12B) configured to brake movement of the elevator car (4); a first measuring device (14A, 14B, 14C) adapted to provide first position data and first speed data of the elevator car; a second measuring device (15A, 10 15B) adapted to provide at least a second position data of the elevator car (4); and a safety monitoring unit (17) communicatively connected to the first measuring (14A, 14B, 14C) device and the second measuring device (15A, 15B) and configured to determine a synchronized position (19) of the elevator car (4) from the first and the second position data, and to determine an elevator 15 car slowdown failure in the proximity of the top (3A) or the bottom (3B) end terminal from the first speed data (20) and from the synchronized position (19) of the elevator car (4). The safety monitoring unit (17) is adapted to cause braking of the elevator car (4) with the electromechanical braking apparatus (12A, 12B) upon determination of the slowdown failure.
Abstract:
CONDITION MONITORING OF AN INDUCTIVE BRAKING DEVICE There is provided a method for condition monitoring of inductive braking device of an elevator car in an elevator shaft, the method comprising determining that the elevator car is empty; determining that doors of the elevator car are closed; causing electromechanical brakes to hold the elevator car stationary in the elevator shaft; causing actuation of a braking condition for the elevator car with the inductive braking device; causing the electromechanical brakes to lift while the inductive braking device is in the braking condition; determining a value associated with the inductive braking device in response to causing the electromechanical brakes to lift while the inductive braking device is actuated; and determining an operating condition of the inductive braking device based on the value. CAUSING ELECTROMECHANICAL 100 BRAKES TO HOLD AN ELEVATOR CAR lo STATIONARY IN AN ELEVATOR SHAFT CAUSING ACTUATION OF A BRAKING 102 CONDITION FOR THE ELEVATOR CAR WITH AN INDUCTIVE BRAKING DEVICE CAUSING THE ELECTROMECHANICAL BRAKES TO LIFT WHILE THE 104 INDUCTIVE BRAKING DEVICE IS IN THE BRAKING CONDITION DETERMINING A VALUE ASSOCIATED WITH THE INDUCTIVE BRAKING 106 DEVICE IN RESPONSE TO CAUSING THE ELECTROMECHANICAL BRAKES TO LIFT WHILE THE INDUCTIVE BRAKING DEVICE IS ACTUATED DETERMINING AN OPERATING 108 CONDITION OF THE INDUCTIVE BRAKING DEVICE BASED ON THE VALUE