EP0149727A1 - Circuit de surveillance pour les contacts de sécurité d'ascenceurs - Google Patents

Circuit de surveillance pour les contacts de sécurité d'ascenceurs Download PDF

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Publication number
EP0149727A1
EP0149727A1 EP84112557A EP84112557A EP0149727A1 EP 0149727 A1 EP0149727 A1 EP 0149727A1 EP 84112557 A EP84112557 A EP 84112557A EP 84112557 A EP84112557 A EP 84112557A EP 0149727 A1 EP0149727 A1 EP 0149727A1
Authority
EP
European Patent Office
Prior art keywords
safety
circuit
supply voltage
contacts
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84112557A
Other languages
German (de)
English (en)
Other versions
EP0149727B1 (fr
Inventor
Karl-Otto Dipl.-Ing. Schöllkopf
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.)
Thyssen MAN Aufzuge GmbH
Original Assignee
Thyssen MAN Aufzuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thyssen MAN Aufzuge GmbH filed Critical Thyssen MAN Aufzuge GmbH
Priority to AT84112557T priority Critical patent/ATE35471T1/de
Publication of EP0149727A1 publication Critical patent/EP0149727A1/fr
Application granted granted Critical
Publication of EP0149727B1 publication Critical patent/EP0149727B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B66B5/0006—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

Definitions

  • the invention relates to a monitoring circuit for safety contacts located in the safety circuit of at least one contactor of an elevator control, in particular door and bolt contacts, which are in series with the at least one contactor, in particular in series with two contactors connected in parallel, along a safety route between a first supply voltage connection and a second supply voltage connection are connected.
  • the invention is therefore based on the object of specifying a monitoring circuit for the safety contacts of a safety circuit of the type specified at the outset, which, with a comparatively simple construction, meets the requirements mentioned above.
  • this object is achieved by a monitoring circuit, which is characterized in that at least two of the safety contacts are assigned a monitoring circuit which generates an evaluable control signal which is characteristic of the state of the assigned safety switch, the connection of which to the side of the assigned safety contact which is remote from the first supply voltage connection is connected and the other connection is connected to the second supply voltage connection, and that the internal resistance of each of the control circuits is selected such that the worst case in the event of a line break. in the monitoring circuit due to the presence of the control circuits over the safety route current flowing on the at least one contactor only leads to a voltage drop that is significantly below the response threshold or dropout threshold for the contactor.
  • the basic idea of the invention is therefore to dimension each individual control circuit so that the resistance in each conceivable parallel branch running parallel to a section of the safety route, which contains at least two control circuits, is sufficiently high to prevent a contactor from pulling or does not fall off.
  • a major advantage of the monitoring circuit according to the invention is that the faulty safety contact can be detected quickly and reliably on the basis of the output signals of the assigned control circuit and that consequently the downtimes for the elevator in question can be significantly reduced.
  • each of the control circuits has a rectifier circuit on the input side, which rectifies the supply voltage normally present as an AC voltage and whose output signal is fed to an optocoupler, at the output of which there is a threshold value circuit, at the output of which the control signal is available.
  • the series connection of the safety contacts S1 to S4 is in turn connected to two RA and RS contactors connected in parallel.
  • the series connection of the safety contacts S1 to S4 with the parallel connection of the contactors RA, RS is between the two connections A and B of a supply voltage source or an operating voltage source, which is usually formed by a three-phase network, which is why the conductor connected to connection A is referred to as phase conductor L. is, while the conductor connected to the terminal B is referred to as the neutral conductor N, for the 1, an earth connection E is provided.
  • the contactors RA and RS which are assigned, for example, to the upward travel and the fast travel of an associated elevator, can only attract in the circuit according to FIG. 1 if all four safety contacts S1 to S4 are closed. On the other hand, the contactors must drop out as soon as one of the four safety contacts S1 to S4 responds. These conditions are not met for the switching state shown in FIG. 1 since the safety contact S3 is open.
  • the fact that the safety contact S3, which can be a door or a bolt contact, for example, is open, is to be recognized as a fault according to the invention, contact S3 also being identified as a non-closed contact.
  • control circuits K1 to K4 serve this purpose, one of which is assigned to one of the safety contacts S1 to S4.
  • the control circuits K1 to K4 each lie between the side of the associated safety contact S1 to S4 facing away from the connection A and the connection B or the neutral conductor N, one of which according to FIG. 1 for the second connections of the control circuits K1 to K4 Neutral conductor N branching line N 'is provided.
  • R i of the control circuits K1 to K4 must be sufficiently high to reliably prevent the contactors RA, RS from tightening in the event of an interruption U
  • FIG. 2 shows an equivalent circuit diagram of the circuit according to FIG. 1 for the case of an open safety contact and an interruption in the branch N '. 2 shows a resistance R between the two connections A and B, which is in series with the parallel connection of the contactors RA, RS, each of which is indicated by the series connection of an ohmic resistor R and an inductance L.
  • the effective voltage across the RA contactor for the worst-case scenario considered may only be 10% of the nominal voltage between connections A and B, since according to VDE regulation 0660 the contactors drop at 10% of the nominal voltage must be guaranteed, although the manufacturers often guarantee higher values, for example 15% of the nominal voltage.
  • Fig. 4 shows a schematic diagram of a in practice for an inventive.
  • Monitoring circuit used control circuit K .. It can be seen that the control circuit K i comprises a bridge circuit B, one bridge diagonal of which is connected via ohmic resistors R1, R2 to the lines L and N and whose output-side bridge diagonal with the input side (photodiode) one Optocoupler 0 is connected, the output side (phototransistor) is connected to a threshold circuit SW, the signal output SA signals whether the safety contact S i assigned to the control circuit K. is open or closed.
  • the photo transistor of the optocoupler O and the threshold circuit SW are fed with an auxiliary direct voltage + U, which can be obtained, for example, by means of a rectifier circuit (not shown) from the output voltage of an auxiliary transformer fed with the operating voltage.
  • the monitoring circuit described with rectifier bridge, optocoupler and threshold or trigger circuit offers the particular advantage of electrical isolation between the circuit input and output.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
EP84112557A 1983-11-30 1984-10-18 Circuit de surveillance pour les contacts de sécurité d'ascenceurs Expired EP0149727B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112557T ATE35471T1 (de) 1983-11-30 1984-10-18 Ueberwachungsschaltung fuer die sicherheitskontakte von aufzuegen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3343303 1983-11-30
DE19833343303 DE3343303A1 (de) 1983-11-30 1983-11-30 Ueberwachungsschaltung fuer die sicherheitskontakte von aufzuegen

Publications (2)

Publication Number Publication Date
EP0149727A1 true EP0149727A1 (fr) 1985-07-31
EP0149727B1 EP0149727B1 (fr) 1988-06-29

Family

ID=6215659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112557A Expired EP0149727B1 (fr) 1983-11-30 1984-10-18 Circuit de surveillance pour les contacts de sécurité d'ascenceurs

Country Status (3)

Country Link
EP (1) EP0149727B1 (fr)
AT (1) ATE35471T1 (fr)
DE (2) DE3343303A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508403A2 (fr) * 1991-04-09 1992-10-14 Otis Elevator Company Circuit de sécurité pour cabine d'ascenseur à faible vitesse
FR2777087A1 (fr) * 1998-04-03 1999-10-08 Otis Elevator Co Dispositif pour localiser une panne de fermeture de porte paliere dans une installation d'ascenseur
WO2006106172A1 (fr) * 2005-04-08 2006-10-12 Kone Corporation Systeme d'ascenseur
WO2006108433A1 (fr) * 2005-04-11 2006-10-19 Otis Elevator Company Circuit de securite pour trottoirs roulants
AT502582B1 (de) * 2005-09-20 2008-05-15 Tuev Oesterreich Tech Ueberwac Überwachungseinrichtung einer aufzugsanlage
US7905330B2 (en) * 2007-03-01 2011-03-15 Kone Corporation Door control safety arrangement for transportation system
WO2011054674A1 (fr) * 2009-10-26 2011-05-12 Inventio Ag Circuit de sécurité dans un système d'ascenseur
CN103809503A (zh) * 2014-03-04 2014-05-21 北京七星华创电子股份有限公司 一种半导体设备安全门互锁系统
WO2016177683A1 (fr) * 2015-05-05 2016-11-10 Inventio Ag Dispositif de surveillance d'ascenseur muni d'une transmission de signaux isolée galvaniquement
CN107892244A (zh) * 2016-10-04 2018-04-10 通力股份公司 电梯制动器控制器
WO2022078137A1 (fr) * 2020-10-16 2022-04-21 苏州汇川技术有限公司 Circuit de régulation de tension de boucle de sécurité

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19849238C1 (de) * 1998-10-26 2000-03-09 O & K Rolltreppen Gmbh Verfahren zur Abschaltung von Personenförderanlagen sowie Sicherheitskreis für Personenförderanlagen
CN104816996A (zh) * 2015-05-07 2015-08-05 广州永日电梯有限公司 一种电梯层门门锁回路被短接的检测方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614160A (en) * 1951-07-28 1952-10-14 Gen Electric Indicating system
DE2611145A1 (de) * 1976-03-17 1977-09-22 Grothe & Soehne Kg A Alarmanlage mit als abgeglichene bruecke ausgebildeter kontrollvorrichtung
GB2073434A (en) * 1980-03-28 1981-10-14 Plessey Co Ltd Remote switch monitoring circuit for mining
GB2110388A (en) * 1981-10-30 1983-06-15 Yorkshire Chemicals Ltd Improvements relating to electrical controls for lifts, hoists and the like

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068873B (fr) * 1959-11-12

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614160A (en) * 1951-07-28 1952-10-14 Gen Electric Indicating system
DE2611145A1 (de) * 1976-03-17 1977-09-22 Grothe & Soehne Kg A Alarmanlage mit als abgeglichene bruecke ausgebildeter kontrollvorrichtung
GB2073434A (en) * 1980-03-28 1981-10-14 Plessey Co Ltd Remote switch monitoring circuit for mining
GB2110388A (en) * 1981-10-30 1983-06-15 Yorkshire Chemicals Ltd Improvements relating to electrical controls for lifts, hoists and the like

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 3, Nr. 62, 29. Mai 1979, Seite 90M60; & JP-A-54-38053 (MITSUBISHI DENKI) 22-03-1979 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508403A2 (fr) * 1991-04-09 1992-10-14 Otis Elevator Company Circuit de sécurité pour cabine d'ascenseur à faible vitesse
EP0508403A3 (en) * 1991-04-09 1993-06-16 Otis Elevator Company Low speed elevator car safety circuit
FR2777087A1 (fr) * 1998-04-03 1999-10-08 Otis Elevator Co Dispositif pour localiser une panne de fermeture de porte paliere dans une installation d'ascenseur
US6193019B1 (en) 1998-04-03 2001-02-27 Otis Elevator Company Device for localization of a door breakdown
WO2006106172A1 (fr) * 2005-04-08 2006-10-12 Kone Corporation Systeme d'ascenseur
US7503435B2 (en) 2005-04-08 2009-03-17 Kone Corporation Elevator safety circuit monitoring system and method
WO2006108433A1 (fr) * 2005-04-11 2006-10-19 Otis Elevator Company Circuit de securite pour trottoirs roulants
AT502582B1 (de) * 2005-09-20 2008-05-15 Tuev Oesterreich Tech Ueberwac Überwachungseinrichtung einer aufzugsanlage
DE102006044631B4 (de) * 2005-09-20 2015-04-30 TÜV Österreich (Technischer Überwachungs-Verein Österreich Überwachungseinrichtung einer Aufzugsanlage
US7905330B2 (en) * 2007-03-01 2011-03-15 Kone Corporation Door control safety arrangement for transportation system
CN102596780A (zh) * 2009-10-26 2012-07-18 因温特奥股份公司 电梯设备中的安全电路
CN102596780B (zh) * 2009-10-26 2014-08-06 因温特奥股份公司 电梯设备中的安全电路
WO2011054674A1 (fr) * 2009-10-26 2011-05-12 Inventio Ag Circuit de sécurité dans un système d'ascenseur
US9061863B2 (en) 2009-10-26 2015-06-23 Inventio Ag Safety circuit in an elevator system
CN103809503A (zh) * 2014-03-04 2014-05-21 北京七星华创电子股份有限公司 一种半导体设备安全门互锁系统
WO2016177683A1 (fr) * 2015-05-05 2016-11-10 Inventio Ag Dispositif de surveillance d'ascenseur muni d'une transmission de signaux isolée galvaniquement
CN107567424A (zh) * 2015-05-05 2018-01-09 因温特奥股份公司 具有电流解耦的信号传输件的电梯监控装置
AU2016257307B2 (en) * 2015-05-05 2019-05-02 Inventio Ag Lift monitoring unit having a galvanically decoupled signal transmission
CN107567424B (zh) * 2015-05-05 2019-09-24 因温特奥股份公司 具有电流解耦的信号传输件的电梯监控装置
CN107892244A (zh) * 2016-10-04 2018-04-10 通力股份公司 电梯制动器控制器
US10899579B2 (en) 2016-10-04 2021-01-26 Kone Corporation Elevator brake controller
WO2022078137A1 (fr) * 2020-10-16 2022-04-21 苏州汇川技术有限公司 Circuit de régulation de tension de boucle de sécurité

Also Published As

Publication number Publication date
DE3472481D1 (en) 1988-08-04
DE3343303A1 (de) 1985-08-08
EP0149727B1 (fr) 1988-06-29
ATE35471T1 (de) 1988-07-15

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