摘要:
The invention relates to an elevator arrangement comprising an elevator with a control system, and an inspection or maintenance mode, which elevator further comprises an elevator car (2) arranged to run up and down in an elevator shaft (1c) along its guide rails, and which elevator car (2) is equipped with a roof (2a) and a car operating panel (2e). The arrangement comprises actuating means to open the roof (2a) of the elevator car (2), which actuating means are operatively connected to the car operating panel (2e) of the elevator (2).
摘要:
According to an aspect of the invention there is provided a configuration apparatus for an elevator system. The configuration apparatus comprises a communication interface configured to enable communication with a main safety circuit of the elevator system via a communication channel; at least one memory configured to store safety configuration data of the elevator system; wherein configuration apparatus is configured to provide via the communication interface at least part of the safety configuration data to the main safety circuit in response to a safety configuration data query.
摘要:
The invention relates to a method for defining elongation of an elevator car (102) suspension means (110). The method comprises: obtaining periodically a value representing an overtravel distance of the elevator car (102), and defining the elongation of the elevator car (102) suspension means (110) on a basis of the periodically obtained values representing the overtravel distance of the elevator car (102). The invention relates also to an elevator system (100) performing at least partly the method.
摘要:
The elevator comprises a car (10) with at least two car doors (12A, 12B), each car door being provided with a door contact (A1, A2), a shaft (20) being provided with corresponding landing doors (22A, 22B), each landing door being provided with a door contact (B1, B2), each landing door opening in synchronism with the corresponding car door, the door contacts forming part of a safety circuit (SC) of the elevator, a car door contact input (IP2) being connected to a middle point in the safety circuit between a series connection of the car door contacts and a series connection of the landing door contacts. A status information of the car door contact input is monitored in order to determine whether the door contacts are operational or not when the car doors are opened and/or closed with a predetermined time delay at a landing (L1, L2).
摘要:
The invention relates to an elevator safety arrangement comprising a hoistway (1); an elevator car (2) mounted in the hoistway (1); a working platform (3) mounted on top of the roof (4) the elevator car (2); at least one sensing arrangement (5) for sensing load of the working platform (3) and at least one balustrade (6). Said balustrade (6) is mounted on the working platform (3) such that its weight is carried by the working platform (3), and in that it is movable between a substantially upright position and a substantially horizontal position.
摘要:
The invention relates to a method for verifying speed data of an elevator car (102) for overspeed monitoring of the elevator car (102). The method comprising obtaining at least one continuous speed data of the elevator car (202) at two channels; obtaining a zone speed data of the elevator car (204) within at least one zone of an elevator shaft at two channels, generating a two- channel verified speed information (206) by comparing the said at least one continuous speed data to the zone speed data at least at one channel; generating a control signal (208), if the comparison indicates a mismatch at least at one channel; and if the comparison indicates a match at each of the at least one channel in which the comparison is provided; the method further comprising comparing (210) the verified speed information at each channel between each other; and generating the control signal (208), if the reciprocal comparison indicates a mismatch. The invention also relates to a safety control unit and an elevator system performing at least partly the method.
摘要:
The invention allows checking the validity of a license of a maintenance unit (220) for accessing a controller of a passenger transportation/access device (200) of a building, without a need for an online connection to a service center or the like. An expiration time of the license is read from an encrypted license file stored in the maintenance unit (220) in response to detecting the maintenance unit (220) being connected to the controller (210). A manufacturing time and a current usage time of the controller (210), both stored in a secure memory of the controller (210), are read. A total of the manufacturing time and the current usage time of the controller (210) are compared to the expiration time of the license. In response to the total not exceeding the expiration time, the license is determined to be valid.
摘要:
The invention relates to a method for defining elongation of an elevator car suspension means (110). The method comprises: obtaining periodically a value representing an overtravel distance of the elevator car (102), and defining the elongation of the elevator car suspension means (100) on a basis of the periodically obtained values representing the overtravel distance of the elevator car. The invention relates also to an elevator system (100) performing at least partly the method.
摘要:
A safety control device applicable to an elevator system including an elevator car driven in an elevator shaft by means of a drive device, said safety control device comprising at least one sensor configured to detect, in the elevator shaft, a presence of an object in at least one specified area of the elevator shaft, and a controller configured to receive and process a signal of the at least one sensor indicating a detection result, and to conduct, when the detection result indicates the presence of an object in the at least one specified area of the elevator shaft, a safety procedure in which a switch from a normal drive control of the drive unit to a safety drive control is executed in which a target value set for the speed of the elevator car is decreased.
摘要:
Conventionally elevator communications have been implemented using travelling cables. This is particularly the case when safety related data transmitted from an elevator car has to fulfil realtime restrictions often set by regulators so that the receiving of the information may not be delayed. Typically this cannot be guaranteed when wireless transmission technologies are used. The reliability can be increased by using a second to supplement the wireless transmission.