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EP2284110B1 - Electronic safety system for a lift - Google Patents

Electronic safety system for a lift Download PDF

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Publication number
EP2284110B1
EP2284110B1 EP10008399.7A EP10008399A EP2284110B1 EP 2284110 B1 EP2284110 B1 EP 2284110B1 EP 10008399 A EP10008399 A EP 10008399A EP 2284110 B1 EP2284110 B1 EP 2284110B1
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EP
European Patent Office
Prior art keywords
safety
controller
usp
door
bus
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Revoked
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EP10008399.7A
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German (de)
French (fr)
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EP2284110A1 (en
Inventor
Christoph Stratmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KA Schmersal Holding GmbH and Co KG
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KA Schmersal Holding GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/22—Operation of door or gate contacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions

Definitions

  • the invention relates to an electronic security system for a lift according to the preamble of claim 1.
  • an electronic security system for an elevator in which a safety circuit is performed when an unsafe condition is detected.
  • the electronic security system includes a security controller and a communications bus that facilitates exchange of control and data signals between a microprocessor-based controller and various components including bus nodes.
  • the bus nodes are designed to provide an interface for sensors, contacts and switches.
  • a security controller processes the messages received from the bus nodes Data and determines if an unsafe condition exists. In an unsafe condition, the safety controller sends a stop signal to the drive and brake unit of the elevator, and in addition, a status signal indicating the unsafe condition is sent to the controller.
  • the controller of the elevator should not process information of the bus node, but the controller already receives the processed information of the bus node from the safety controller to allow a faster response of the control device of the elevator.
  • the safety control device alone takes over the safety tasks and it has an elementary role.
  • the object of the invention is to obtain a fast and secure embodiment of an electronic security system according to the preamble of claim 1, in which a relief of a security component takes place, giving access to more information (s) and increased security in the event of possible improvement in maintenance Episode has.
  • a safety component such as a safety controller is relieved by the control of the elevator is not currently receiving the message from the safety controller that a shutdown or a transfer is made in a safe state at a potential risk potential or was.
  • Fig. 1 shows a block diagram for an elevator. It is provided a controller 1 for a designated 2 schematically illustrated elevator car.
  • a motor 21 for driving the elevator car 2 is coupled to a bus 3 via a frequency converter 20.
  • the controller 1 communicates the bus 3 by means of bus nodes with components which are exemplified as a floor switch 4, door contact 5, command transmitter 6 and safe actuator 7 for a door motor 8 of the elevator car 2.
  • the controller 1 receives, via the bus 3, via the bus nodes, which form an interface for the components, signals of the components, such as the request for a trip to a certain floor via the commander 6 in the elevator car 2.
  • the door contacts 5 provide a signal as to whether the door of the corresponding floor is closed or open.
  • the door contact 5 ' provides a signal as to whether the door of the elevator car 2 is closed or opened.
  • the safe actuator 7 is used to drive the door motor 8 of the elevator car 2, which can be controlled by the controller 1 via corresponding signals that are sent via the bus 3.
  • U ltra s chall- P ositionssysteme or USP systems are 9 or a two-channel system USP provided, which detect in each case via ultrasound the position of the elevator car 2 in the elevator shaft.
  • Systems USS Schmersal are preferably used as USP systems 9, the function of which is described in the product catalog "Elevator Switching Systems - Elevator Positioning System USP" of 31.10.2007.
  • the two USP systems 9 or the one two-channel USP system is a redundant determination of the position possible, which meets high security requirements by the two USP systems 9 or by the two-channel USP system determined position of the elevator car 2 is compared.
  • the speed of the elevator car 2 in the elevator shaft can be determined via the time determined position of the elevator car 2 by the two USP systems 9 or a two-channel USP system as a derivation of the location function of the elevator car 2 in the elevator shaft after the time.
  • multiple USP systems 9 may also be used as two. With two, however, the required redundancy already results. Analogously, the redundancy is also ensured with a two-channel USP system.
  • a transmitter having two receivers and corresponding two channels may be used.
  • a safety controller 10 is coupled as Can Safety Controller, which can receive the signals from floor switch 4, door contact 5, 5 ', command transmitter 6, safe actuator 7, door motor 8 and USP system 9 via the bus 3.
  • the floor switch 4, door contact 5, 5 ', command 6, safe actuator 7, and USP system 9 can be referred to as sensors.
  • the controller 1 is connected to a safety circuit 11, which the safety controller 10 can open via a (safety) switch 12.
  • the safety controller 10 monitors the safety function of the elevator. If the security controller 10 determines an unsafe condition, such as the door contact 5 'indicates that the door of the elevator car 2 is open during travel between two floors, the (security) switch 12 is opened and the elevator is disabled or in a safe state. The opening of the safety circuit 11 leads to the operation of the (safety) switch 22, which shuts off the motor 21.
  • a device 13 for monitoring the speed of the elevator car 2 can open a (safety) switch 14 independently of the safety controller 10 in order to access the safety circuit 11 open when, for example, a predetermined threshold speed of the elevator car 2 is exceeded.
  • the device 13 for monitoring the speed of the elevator car 2 can be implemented independently of, or by, the USP systems 9.
  • one or two limit switches 15 for monitoring the exceeding of a predetermined spatial position of the elevator car 2 can open a (safety) switch 16 independently of the safety controller 10 in order to open the safety circuit 11, for example when the elevator car 2 in the elevator shaft exceeds a predetermined end position at the lower or upper end of the elevator shaft.
  • the limit switch (s) 15 may be implemented independently of, or through the USP systems 9 or the two-channel USP system.
  • the controller 1 receives the feedback from the safety circuit 11 that the safety circuit 11 has been opened and the (safety) switch 22 has been actuated to stop the motor 21.
  • a means is provided that the controller 1 reports the open safety circuit 11. This means can be realized, for example, by the (safety) switch 22.
  • the controller 3 the information of the components, such as floor switch 4, door contact 5, command transmitter 6, safe actuator 7, door motor 8 and USP system 9, evaluates and determines that a shutdown by the safety controller 11 must be made (te). It can also be provided that the safety controller 11 forwards the signals received from the components to the controller 1.
  • the controller 1 can provide improved diagnostics and maintenance by evaluating the signals of the individual components connected to the bus nodes.
  • the safety controller 10 can redundantly determine the position of the elevator car 2 in the elevator shaft through the two USP systems 9 connected to the bus 3 or through the two-channel USP system.
  • redundant speed information of the elevator car 2 can be determined by the safety controller 10 from the two USP systems 9 or the one dual-channel USP system, so that a "retrieval" in the area of the door zones of the elevator car 2 can take place, i.
  • the safety controller 10 gives the safe actuator 7 on the elevator car 2 an enable signal, so that the door motor 8 may be actuated in the area of the door zone.
  • the function of the door zone monitoring in the safety controller 10 can be integrated.

Landscapes

  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)
  • Elevator Control (AREA)

Description

Die Erfindung betrifft ein elektronisches Sicherheitssystem für einen Aufzug nach dem Oberbegriff des Anspruchs 1.The invention relates to an electronic security system for a lift according to the preamble of claim 1.

Aus EP 1 864 935 A1 ist ein elektronisches Sicherheitssystem gemäß dem Oberbegriff des Anspruchs 1 bekannt.Out EP 1 864 935 A1 An electronic security system according to the preamble of claim 1 is known.

Aus EP 1 159 218 B1 ist ein elektronisches Sicherheitssystem für einen Aufzug bekannt, bei dem eine Sicherheitsschaltung durchgeführt wird, wenn ein unsicherer Zustand festgestellt wird. Das elektronische Sicherheitssystem umfasst eine Sicherheitssteuereinrichtung und einen Kommunikations-Bus, der einen Austausch von Steuer- und Datensignalen zwischen einer auf einem Mikroprozessor basierenden Steuereinrichtung und verschiedenen Komponenten, die Busknoten umfassen, ermöglicht. Die Busknoten sind so ausgestaltet, dass sie eine Schnittstelle für Sensoren, Kontakte und Schalter bilden. Eine Sicherheitssteuereinrichtung verarbeitet die von den Busknoten empfangenen Daten und bestimmt, ob ein unsicherer Zustand besteht. Bei einem unsicheren Zustand schickt die Sicherheitsteuereinrichtung ein Stoppsignal an die Antriebs-und Bremseinheit des Aufzugs, wobei zudem ein Statussignal, das den unsicheren Zustand anzeigt, an die Steuereinrichtung gesendet wird.Out EP 1 159 218 B1 For example, an electronic security system for an elevator is known in which a safety circuit is performed when an unsafe condition is detected. The electronic security system includes a security controller and a communications bus that facilitates exchange of control and data signals between a microprocessor-based controller and various components including bus nodes. The bus nodes are designed to provide an interface for sensors, contacts and switches. A security controller processes the messages received from the bus nodes Data and determines if an unsafe condition exists. In an unsafe condition, the safety controller sends a stop signal to the drive and brake unit of the elevator, and in addition, a status signal indicating the unsafe condition is sent to the controller.

Bei der aus EP 1 159 218 B1 bekannten Sicherheitssteuereinrichtung soll die Steuereinrichtung des Aufzugs keine Informationen der Busknoten verarbeiten, sondern die Steuereinrichtung erhält schon die verarbeitete Information der Busknoten von der Sicherheitssteuereinrichtung, um eine schnellere Reaktion der Steuereinrichtung des Aufzugs zu ermöglichen. Die Sicherheitssteuereinrichtung übernimmt alleine die Sicherheitsaufgaben und ihr kommt eine elementare Rolle zu.At the EP 1 159 218 B1 Known safety controller, the controller of the elevator should not process information of the bus node, but the controller already receives the processed information of the bus node from the safety controller to allow a faster response of the control device of the elevator. The safety control device alone takes over the safety tasks and it has an elementary role.

Aufgabe der Erfindung ist es, eine schnelle und sichere Ausgestaltung eines elektronischen Sicherheitssystems nach dem Oberbegriff des Anspruchs 1 zu erhalten, bei dem eine Entlastung einer Sicherheitskomponente erfolgt, was den Zugriff auf mehr Information(en) und eine erhöhte Sicherheit bei möglicher Verbesserung der Wartung zur Folge hat.The object of the invention is to obtain a fast and secure embodiment of an electronic security system according to the preamble of claim 1, in which a relief of a security component takes place, giving access to more information (s) and increased security in the event of possible improvement in maintenance Episode has.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Hierdurch wird eine Sicherheitskomponente wie ein Sicherheitscontroller entlastet, indem die Steuerung des Aufzugs gerade nicht von dem Sicherheitscontroller die Mitteilung erhält, dass eine Abschaltung bzw. eine Überführung in einen sicheren Zustand bei einem möglichen Gefahrenpotential durchgeführt wird bzw. wurde.As a result, a safety component such as a safety controller is relieved by the control of the elevator is not currently receiving the message from the safety controller that a shutdown or a transfer is made in a safe state at a potential risk potential or was.

Die Erfindung wird nachstehend anhand der in den beigefügten Abbildungen dargestellten Ausführungsbeispiele näher erläutert.

  • Fig. 1 zeigt schematisch ein Blockschaltbild für den Antrieb einer Aufzugskabine.
The invention will be explained in more detail with reference to the embodiments illustrated in the accompanying drawings.
  • Fig. 1 schematically shows a block diagram for the drive of an elevator car.

Fig. 1 zeigt ein Blockschaltbild für einen Aufzug. Es ist eine Steuerung 1 für eine mit 2 bezeichnete schematisch dargestellte Aufzugskabine vorgesehen. Fig. 1 shows a block diagram for an elevator. It is provided a controller 1 for a designated 2 schematically illustrated elevator car.

Ein Motor 21 zum Antrieb der Aufzugskabine 2 ist über einen Frequenzumrichter 20 mit einem Bus 3 gekoppelt.A motor 21 for driving the elevator car 2 is coupled to a bus 3 via a frequency converter 20.

Die Steuerung 1 kommuniziert den Bus 3 mittels Busknoten mit Komponenten, die beispielhaft als Etagenschalter 4, Türkontakt 5, Befehlsgeber 6 und sicherer Aktor 7 für einen Türmotor 8 der Aufzugskabine 2 angegeben sind. Die Steuerung 1 empfängt über den Bus 3 über die Busknoten, die eine Schnittstelle für die Komponenten bilden, Signale der Komponenten, wie zum Beispiel die Anforderung einer Fahrt zu einer bestimmten Etage über den Befehlsgeber 6 in der Aufzugskabine 2.The controller 1 communicates the bus 3 by means of bus nodes with components which are exemplified as a floor switch 4, door contact 5, command transmitter 6 and safe actuator 7 for a door motor 8 of the elevator car 2. The controller 1 receives, via the bus 3, via the bus nodes, which form an interface for the components, signals of the components, such as the request for a trip to a certain floor via the commander 6 in the elevator car 2.

Ferner werden Signale von Etagenschaltern 4 erhalten, die Rückschlüsse darauf zu lassen, in welcher Etage sich die Aufzugskabine 2 befindet. Die Türkontakte 5 liefern ein Signal, ob die Tür der entsprechenden Etage geschlossen oder geöffnet ist. Der Türkontakt 5' liefert ein Signal, ob die Tür der Aufzugskabine 2 geschlossen oder geöffnet ist. Der sichere Aktor 7 dient zum Antrieb des Türmotors 8 der Aufzugskabine 2, der von der Steuerung 1 über entsprechende Signale, die über den Bus 3 gesendet werden, gesteuert werden kann.Furthermore, signals from floor switches 4 are obtained, to draw conclusions as to which floor the elevator car 2 is located in. The door contacts 5 provide a signal as to whether the door of the corresponding floor is closed or open. The door contact 5 'provides a signal as to whether the door of the elevator car 2 is closed or opened. The safe actuator 7 is used to drive the door motor 8 of the elevator car 2, which can be controlled by the controller 1 via corresponding signals that are sent via the bus 3.

Ferner sind mindestens zwei Ultraschall-Positionssysteme bzw. USP-Systeme 9 oder ein zweikanaliges USP-System vorgesehen, die jeweils über Ultraschall die Position der Aufzugskabine 2 im Aufzugsschacht ermitteln. Als USP-Systeme 9 werden vorzugsweise Systeme der Firma Schmersal verwendet, deren Funktion im Produktkatalog "Aufzugsschaltgeräte - Aufzugs-Positionssystem USP" vom 31.10.2007 beschrieben ist. Über die beiden USP-Systeme 9 oder das eine zweikanalige USP-System ist eine redundante Ermittlung der Position möglich, die hohen Sicherheitsanforderungen genügt, indem die durch die beiden USP-Systeme 9 oder die durch das eine zweikanalige USP-System ermittelte Position der Aufzugskabine 2 verglichen wird. Ferner ist über die über die Zeit ermittelte Position der Aufzugskabine 2 durch die beiden USP-Systeme 9 oder das eine zweikanalige USP-System die Geschwindigkeit der Aufzugskabine 2 im Aufzugsschacht bestimmbar als Ableitung der Ortsfunktion der Aufzugskabine 2 im Aufzugsschacht nach der Zeit. Es versteht sich, dass auch mehrere USP-Systeme 9 als zwei verwendet werden können. Bei zweien ergibt sich jedoch schon die geforderte Redundanz. Analog ist mit einem zweikanaligen USP-System ebenfalls die Redundanz gewahrt. Bei dem zweikanaligen USP-System kann beispielsweise ein Sender mit zwei Empfängern und entsprechenden zwei Kanälen verwendet werden.Furthermore, at least two U ltra s chall- P ositionssysteme or USP systems are 9 or a two-channel system USP provided, which detect in each case via ultrasound the position of the elevator car 2 in the elevator shaft. Systems USS Schmersal are preferably used as USP systems 9, the function of which is described in the product catalog "Elevator Switching Systems - Elevator Positioning System USP" of 31.10.2007. Through the two USP systems 9 or the one two-channel USP system is a redundant determination of the position possible, which meets high security requirements by the two USP systems 9 or by the two-channel USP system determined position of the elevator car 2 is compared. Furthermore, the speed of the elevator car 2 in the elevator shaft can be determined via the time determined position of the elevator car 2 by the two USP systems 9 or a two-channel USP system as a derivation of the location function of the elevator car 2 in the elevator shaft after the time. It will be appreciated that multiple USP systems 9 may also be used as two. With two, however, the required redundancy already results. Analogously, the redundancy is also ensured with a two-channel USP system. For example, in the dual-channel USP system, a transmitter having two receivers and corresponding two channels may be used.

An den Bus 3 ist ein Sicherheitscontroller 10 als Can-Safety-Controller angekoppelt, der die Signale von Etagenschalter 4, Türkontakt 5, 5', Befehlsgeber 6, sicherem Aktor 7, Türmotor 8 und USP-System 9 über den Bus 3 empfangen kann. Der Etagenschalter 4, Türkontakt 5, 5', Befehlsgeber 6, sicherer Aktor 7, und USP-System 9 können insoweit als Sensoren bezeichnet werden.To the bus 3, a safety controller 10 is coupled as Can Safety Controller, which can receive the signals from floor switch 4, door contact 5, 5 ', command transmitter 6, safe actuator 7, door motor 8 and USP system 9 via the bus 3. The floor switch 4, door contact 5, 5 ', command 6, safe actuator 7, and USP system 9 can be referred to as sensors.

Die Steuerung 1 ist mit einem Sicherheitskreis 11 verbunden, den der Sicherheitscontroller 10 über einen (Sicherheits-)Schalter 12 öffnen kann. Der Sicherheitscontroller 10 überwacht die Sicherheitsfunktion des Aufzugs. Stellt der Sicherheitscontroller 10 einen unsicheren Zustand fest, wie bspw., dass der Türkontakt 5' anzeigt, dass die Tür der Aufzugskabine 2 während der Fahrt zwischen zwei Etagen offen ist, wird der (Sicherheits-)Schalter 12 geöffnet und der Aufzug außer Betrieb gesetzt bzw. in einen sicheren Zustand verfahren. Die Öffnung des Sicherheitskreises 11 führt zur Betätigung des (Sicherheits-)Schalters 22, der den Motor 21 abstellt.The controller 1 is connected to a safety circuit 11, which the safety controller 10 can open via a (safety) switch 12. The safety controller 10 monitors the safety function of the elevator. If the security controller 10 determines an unsafe condition, such as the door contact 5 'indicates that the door of the elevator car 2 is open during travel between two floors, the (security) switch 12 is opened and the elevator is disabled or in a safe state. The opening of the safety circuit 11 leads to the operation of the (safety) switch 22, which shuts off the motor 21.

Es kann vorgesehen sein, dass eine Einrichtung 13 zur Überwachung der Geschwindigkeit der Aufzugskabine 2 einen (Sicherheits-)Schalter 14 unabhängig von dem Sicherheitscontroller 10 öffnen kann, um den Sicherheitskreis 11 zu öffnen, wenn beispielsweise ein vorbestimmter Schwellenwert der Geschwindigkeit der Aufzugskabine 2 überschritten wird. Die Einrichtung 13 zur Überwachung der Geschwindigkeit der Aufzugskabine 2 kann unabhängig von den USP-Systemen 9, oder durch diese realisiert sein.It can be provided that a device 13 for monitoring the speed of the elevator car 2 can open a (safety) switch 14 independently of the safety controller 10 in order to access the safety circuit 11 open when, for example, a predetermined threshold speed of the elevator car 2 is exceeded. The device 13 for monitoring the speed of the elevator car 2 can be implemented independently of, or by, the USP systems 9.

Es kann vorgesehen sein, dass ein oder zwei Endschalter 15 zur Überwachung des Überschreitens einer vorbestimmten Ortsposition der Aufzugskabine 2 einen (Sicherheits-)Schalter 16 unabhängig von dem Sicherheitscontroller 10 öffnen können, um den Sicherheitskreis 11 zu öffnen, wenn beispielsweise die Aufzugskabine 2 im Aufzugsschacht eine vorbestimmte Endposition am unteren oder oberen Ende des Aufzugsschacht überschreitet. Der bzw. die Endschalter 15 können unabhängig von den USP-Systemen 9 bzw. dem zweikanaligen USP-System, oder durch diese realisiert sein.It can be provided that one or two limit switches 15 for monitoring the exceeding of a predetermined spatial position of the elevator car 2 can open a (safety) switch 16 independently of the safety controller 10 in order to open the safety circuit 11, for example when the elevator car 2 in the elevator shaft exceeds a predetermined end position at the lower or upper end of the elevator shaft. The limit switch (s) 15 may be implemented independently of, or through the USP systems 9 or the two-channel USP system.

Bei einer Abschaltung des Motors 21 erhält die Steuerung 1 von dem Sicherheitskreis 11 die Rückmeldung, dass der Sicherheitskreis 11 geöffnet wurde, und der (Sicherheits-)Schalter 22 zum Stoppen des Motors 21 betätigt wurde. Dazu ist ein Mittel vorgesehen, dass der Steuerung 1 den geöffneten Sicherheitskreis 11 meldet. Dieses Mittel kann beispielsweise durch den (Sicherheits-)Schalter 22 realisiert sein. Es kann alternativ oder zusätzlich vorgesehen sein, dass die Steuerung 3 die Information der Komponenten, wie Etagenschalter 4, Türkontakt 5, Befehlsgeber 6, sicherer Aktor 7, Türmotor 8 und USP-System 9, auswertet und feststellt, dass eine Abschaltung durch den Sicherheitscontroller 11 vorgenommen werden muss(te). Es kann auch vorgesehen sein, dass der Sicherheitscontroller 11 die von den Komponenten empfangenen Signale an die Steuerung 1 weiterleitet.When the motor 21 is switched off, the controller 1 receives the feedback from the safety circuit 11 that the safety circuit 11 has been opened and the (safety) switch 22 has been actuated to stop the motor 21. For this purpose, a means is provided that the controller 1 reports the open safety circuit 11. This means can be realized, for example, by the (safety) switch 22. It may alternatively or additionally be provided that the controller 3, the information of the components, such as floor switch 4, door contact 5, command transmitter 6, safe actuator 7, door motor 8 and USP system 9, evaluates and determines that a shutdown by the safety controller 11 must be made (te). It can also be provided that the safety controller 11 forwards the signals received from the components to the controller 1.

Die Steuerung 1 kann durch die Auswertung der Signale der einzelnen an die Busknoten angeschlossenen Komponenten eine verbesserte Diagnose- und Wartungsmöglichkeit liefern.The controller 1 can provide improved diagnostics and maintenance by evaluating the signals of the individual components connected to the bus nodes.

Der Sicherheitscontroller 10 kann beispielsweise durch die zwei an den Bus 3 angeschlossenen USP-Systeme 9 oder durch das eine zweikanalige USP-System die Position der Aufzugskabine 2 in dem Aufzugsschacht redundant ermitteln.By way of example, the safety controller 10 can redundantly determine the position of the elevator car 2 in the elevator shaft through the two USP systems 9 connected to the bus 3 or through the two-channel USP system.

Wenn nun eine Etagentür des Aufzugsschachts nicht richtig schließt und der Türkontakt 5 nicht geschlossen ist, ist man in der Lage, die Aufzugskabine 2 oberhalb oder unterhalb der gestörten Tür, deren Türkontakt 5 nicht geschlossen ist, zu bewegen. Die Redundanz der Ortsbestimmung der Aufzugskabine 2 durch die beiden USP-Systeme 9 oder das eine zweikanalige USP-System wird als sichere Information genommen, bei der eine Abschaltung des Aufzugs solange nicht erfolgt, wie die Aufzugskabine 2 nicht in den Etagenbereich mit der gestörten Tür, d.h. dem geöffneten Türkontakt 5, gelangt. Die Verfügbarkeit des Aufzuges wird verbessert.If now a floor door of the elevator shaft does not close properly and the door contact 5 is not closed, one is able to move the elevator car 2 above or below the faulty door whose door contact 5 is not closed. The redundancy of the location of the elevator car 2 by the two USP systems 9 or a two-channel USP system is taken as secure information in which a shutdown of the elevator does not take place as the elevator car 2 not in the floor area with the door disturbed ie the open door contact 5, passes. The availability of the elevator is improved.

Ferner kann vorgesehen sein, dass aus den zwei USP-Systemen 9 oder dem einen zweikanaligen USP-System redundant eine Geschwindigkeitsinformation der Aufzugskabine 2 vom Sicherheitscontroller 10 bestimmbar ist, damit eine "Nachholung" im Bereich der Türzonen der Aufzugskabine 2 erfolgen kann, d.h. der Sicherheitscontroller 10 gibt im Bereich der Türzonen dem sicheren Aktor 7 auf der Aufzugskabine 2 ein Freigabesignal, damit der Türmotor 8 im Bereich der Türzone betätigt werden darf. Hierdurch kann die Funktion der Türzonenüberwachung im Sicherheitscontroller 10 integriert werden.It can further be provided that redundant speed information of the elevator car 2 can be determined by the safety controller 10 from the two USP systems 9 or the one dual-channel USP system, so that a "retrieval" in the area of the door zones of the elevator car 2 can take place, i. In the area of the door zones, the safety controller 10 gives the safe actuator 7 on the elevator car 2 an enable signal, so that the door motor 8 may be actuated in the area of the door zone. As a result, the function of the door zone monitoring in the safety controller 10 can be integrated.

Claims (3)

  1. Electronic safety system for a lift having a control means (1) coupled to a motor (21) for driving a lift car (2), comprising a safety controller (10), the control means (1) being in communication with a safety circuit (11) which is arranged to be brought into an open state by the safety controller (10), as a result of which the motor (21) is switched off, and the safety circuit (11) having a means informing the control means (1) of switching-off of the motor (21), characterised in that a bus (3) is provided, by way of which the control means (1) is in communication with bus nodes which receive data from at least one sensor (4, 5, 5', 6, 7, 9), and the safety controller (10), in the form of a Can-safety-controller, is coupled to the bus (3).
  2. Electronic safety system according to claim 1, characterised in that, as sensor (4, 5, 5', 6, 7, 9), at least two USP systems (9) or a two-channel USP system are provided, by means of which it is possible for the position of the lift car (2) to be determined with redundancy.
  3. Electronic safety system according to claim 1 or 2, characterised in that there is provided a safe actuator (7) to which a release signal for driving a door motor (8) of the lift car (2) is arranged to be sent when it is established, by means of at least two USP systems (9) or a two-channel USP system as sensor (4, 5, 5', 6, 7, 9), that the lift car (2) is located in the region of a door zone and a predetermined speed of the lift car (2) is not being exceeded.
EP10008399.7A 2009-08-14 2010-08-12 Electronic safety system for a lift Revoked EP2284110B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009037347A DE102009037347A1 (en) 2009-08-14 2009-08-14 Electronic security system for a lift

Publications (2)

Publication Number Publication Date
EP2284110A1 EP2284110A1 (en) 2011-02-16
EP2284110B1 true EP2284110B1 (en) 2013-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10008399.7A Revoked EP2284110B1 (en) 2009-08-14 2010-08-12 Electronic safety system for a lift

Country Status (4)

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US (1) US8413765B2 (en)
EP (1) EP2284110B1 (en)
JP (1) JP5300802B2 (en)
DE (1) DE102009037347A1 (en)

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Also Published As

Publication number Publication date
JP2011037635A (en) 2011-02-24
EP2284110A1 (en) 2011-02-16
JP5300802B2 (en) 2013-09-25
DE102009037347A1 (en) 2011-02-17
US8413765B2 (en) 2013-04-09
US20110036668A1 (en) 2011-02-17

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