摘要:
A method for monitoring the operating state of an elevator drive having a brake includes the mounting of a sensor on a movable brake part. The sensor generates an output proportional to the extent of relative movement between the brake part upon which it is mounted and a fixed brake part. The sensor output is monitored to provide an indication of the operating state of the drive and may be combined with other data to provide indications of a variety of drive states.
摘要:
An apparatus and a method for installing and maintaining elevator system controls includes a storage card (1) having a storage element (2) in which elevator control data is stored. An elevator installation becomes operational upon inserting the storage card (1) into a control point (10) of an elevator control system (11). The storage card (1) can fulfill further functions, such as.sub.1 for example, the monitoring of maintenance utilizing a trip recorder for indicating that maintenance is due after a predetermined number of trips of the associated elevator car.
摘要:
A device for reducing the energy consumption is used in an elevator installation which can be alternatively brought into an operating mode and a standby mode wherein in the standby mode the elevator installation is separated from a main energy source and connected with an auxiliary energy source, by means of which basic functions of the elevator installation are maintained so as to enable later entry into the operating mode. The device includes a detecting unit in order to detect a use criterion describing the current use status of the elevator installation. Moreover, a power-saving unit with a microprocessor is provided in order to bring the elevator installation from the operating mode to the standby mode in the case of non-fulfillment of the use criterion and fulfillment of standby criteria and to bring it from the standby mode to the operating mode in the case of non-fulfillment of the standby criteria.
摘要:
A device for producing information related to a position of an elevator car in an elevator shaft includes a toothed belt having a plurality of teeth spaced along a length of the belt and mounted in an elevator shaft, an encoder mounted on the elevator car and having a toothed wheel for engaging the teeth, and guide rollers mounted on the elevator car and engaging the toothed belt to urge the plurality of teeth into engagement with the toothed wheel.
摘要:
An elevator drive has a traction sheave over which ropes are passed to move an elevator car and a counterweight up and down in an elevator hoistway. An elevator control in a control cabinet on a landing is connected with another elevator control in the hoistway and with the elevator car, and controls how the elevator car moves. The control cabinet also has a handle that is part of a Bowden cable acting on a brake of the elevator drive. The handle can be used to manually release the brake which permits the elevator car to move up or down depending on the difference in weight between the elevator car and the counterweight. The position of the elevator car in the hoistway is of significance to the elevator control. A tensioned toothed belt spanning the height of the hoistway is in contact with an encoder that detects the absolute position of the elevator car for the elevator control. For evacuation, a signal device is provided which allows evacuation of the car without looking into the elevator hoistway.
摘要:
An elevator drive has a brake device with compression springs to actuate brake levers, and brake linings on a brake drum creating a braking force. A sensor is provided to detect the movement of a brake magnet armature tappet. A bracket is attached to the brake magnet tappet on one end and a distance piece carrying the sensor housing is arranged on the other end. A restoring lug is attached to the existing mechanical indicator. A monitor evaluates the sensor signal and turns off the elevator drive in the event of dangerous operational states via a safety circuit. The system allows the state of the brake device to be monitored. The more the brake linings wear off due to abrasion, the smaller the distance between the armature and the brake magnet housing. If the armature is in contact with the brake magnet housing, the braking ability of the brake linings is completely void.
摘要:
An elevator drive has a brake device with compression springs to actuate brake levers, and brake linings on a brake drum creating a braking force. A sensor is provided to detect the movement of a brake magnet armature tappet. A bracket is attached to the brake magnet tappet on one end and a distance piece carrying the sensor housing is arranged on the other end. A restoring lug is attached to the existing mechanical indicator. A monitor evaluates the sensor signal and turns off the elevator drive in the event of dangerous operational states via a safety circuit. The system allows the state of the brake device to be monitored. The more the brake linings wear off due to abrasion, the smaller the distance between the armature and the brake magnet housing. If the armature is in contact with the brake magnet housing, the braking ability of the brake linings is completely void.
摘要:
An elevator drive has a brake device with compression springs to actuate brake levers, and brake linings on a brake drum creating a braking force. A sensor is provided to detect the movement of a brake magnet armature tappet. A bracket is attached to the brake magnet tappet on one end and a distance piece carrying the sensor housing is arranged on the other end. A restoring lug is attached to the existing mechanical indicator. A monitor evaluates the sensor signal and turns off the elevator drive in the event of dangerous operational states via a safety circuit. The system allows the state of the brake device to be monitored. The more the brake linings wear off due to abrasion, the smaller the distance between the armature and the brake magnet housing. If the armature is in contact with the brake magnet housing, the braking ability of the brake linings is completely void.
摘要:
A device for reducing the energy consumption is used in an elevator installation which can be alternatively brought into an operating mode and a standby mode wherein in the standby mode the elevator installation is separated from a main energy source and connected with an auxiliary energy source, by means of which basic functions of the elevator installation are maintained so as to enable later entry into the operating mode. The device includes a detecting unit in order to detect a use criterion describing the current use status of the elevator installation. Moreover, a power-saving unit with a microprocessor is provided in order to bring the elevator installation from the operating mode to the standby mode in the case of non-fulfillment of the use criterion and fulfillment of standby criteria and to bring it from the standby mode to the operating mode in the case of non-fulfillment of the standby criteria.