EP1090870A1 - Chaíne de sécurité pour installation d'ascenseur - Google Patents

Chaíne de sécurité pour installation d'ascenseur Download PDF

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Publication number
EP1090870A1
EP1090870A1 EP00121084A EP00121084A EP1090870A1 EP 1090870 A1 EP1090870 A1 EP 1090870A1 EP 00121084 A EP00121084 A EP 00121084A EP 00121084 A EP00121084 A EP 00121084A EP 1090870 A1 EP1090870 A1 EP 1090870A1
Authority
EP
European Patent Office
Prior art keywords
voltage
circuit
safety
switching device
voltage converter
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
EP00121084A
Other languages
German (de)
English (en)
Other versions
EP1090870B1 (fr
Inventor
Antonio Electronic Engineer Lisi
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP00121084A priority Critical patent/EP1090870B1/fr
Publication of EP1090870A1 publication Critical patent/EP1090870A1/fr
Application granted granted Critical
Publication of EP1090870B1 publication Critical patent/EP1090870B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a safety circuit for a Elevator system consisting of a series circuit from Security monitoring switches Facilities serving elevator operation and from one Voltage source for feeding the series circuit, whereby on At least one switching device ends the series connection connected depending on the switching state of the Switch signals generated for an elevator control.
  • a safety circuit for an elevator system consists of a series connection of door contacts, whereby for Monitoring the position of a floor door, for example a contact is provided. More contacts or switches for monitoring the position of the cabin door, for example, the position of the brake or other the safety of the Facilities serving lift operation can be found in the Safety circuit must be switched on.
  • the security circle is usually from an AC voltage source or from a DC voltage source with pulsed DC voltage fed, at least at the end of the safety circuit a safety relay is connected. If all Contacts are closed, the safety relay activated.
  • the elevator control monitors the state of the Safety relay and if the safety relay is activated the elevator control system gives one, for example pending move command free.
  • a disadvantage of this type of feeding the Safety circuit is that the output voltage of the Voltage source is not regulated and Voltage fluctuations are subject to what in turn relays with requires a wide range of voltages. In addition, the Voltage value above the safe low voltage and To avoid electrical accidents with a Residual current circuit breaker must be secured.
  • the invention seeks to remedy this.
  • the invention as characterized in claim 1, solves the problem to avoid the disadvantages of the known device and to create a security circle that is independent of the Head of the elevator works reliably.
  • the advantages achieved by the invention are in essential to see that the tension over the Safety relay is kept constant.
  • the tension over the safety relay is no longer dependent on the length of the wiring of the safety contacts what especially for elevator systems with a large delivery head of is of particular importance with regard to voltage drop.
  • the door contacts are cabled over the entire length Elevator shaft height and has one in the unregulated case direct influence on the voltage across the Safety relay. Grid fluctuations or changing Contact resistances at the contacts or others loads affecting tension in the safety circuit have regulated voltage across the safety relay none Effect.
  • With regulated voltage across the safety relay can be used as a safety relay Standard relays are used without the reliable Affect the functioning of the safety circuit.
  • the safety circuit with physiological safe low voltage are operated. Special Personal protection measures are not necessary. With regulated voltage across the safety relay is on Safety circuit with high operational safety and low Costs doable.
  • 1, 1 denotes a safety circuit, the from a series circuit 2 of switches or Contacts 3, from at least one switching device or a safety relay 4, from a supply 5 serving voltage converter 10 and from a monitoring 6 exists, the signal of the safety relay 4 one Elevator control 7 is supplied.
  • On an input line 8 is, for example, 24 V DC (DC voltage) a circuit breaker 9 is supplied.
  • the circuit breaker 9 is on the output side with the In input of the DC-DC Voltage converter 10 connected to the 24 V DC for example, 25 V to 50 V DC increased.
  • An end to Series connection 2 of contacts 3 is via one Measuring resistor 11 to the output Out of Voltage converter 10 switched, the other end of the Series circuit 2 is connected to safety relay 4.
  • each safety relay 4 is on symbolized with an arrow pointing downwards common conductor connected.
  • the switching state of the Safety relay 4 is connected to a relay contact 12 transmitted, via which the elevator control 7 a Signal voltage leads.
  • a protective diode 13 is, for example, voltage peaks switched via the safety relay 4.
  • the voltage to be regulated across the safety relay 4 is tapped at point P1 and consisting of a network 14 passive elements supplied, which with the Voltage converter 10 is connected. If all contacts 3 the series circuit 2 are closed, the voltage above the safety relay 4 to, for example, 25 V DC held. If the series circuit 2 is open, the output voltage of the voltage converter 10 by means of a limiter 15 is kept at, for example, 53 V DC.
  • the monitoring 6 consists of a first one Surge detector 16, a second Overvoltage detector 17, an undervoltage detector 18 and an overcurrent detector 19.
  • the first Overvoltage detector 16 monitors the voltage across the Safety relay 4 and generates an error message if the monitored voltage exceeds 28 V DC, for example.
  • the second overvoltage detector 17 monitors the voltage at the output Out of the voltage converter 10 and generates one Error message if the monitored voltage, for example Exceeds 55 V DC.
  • the undervoltage detector 18 monitors the voltage at the output Out of the voltage converter 10 and generates an error message if the monitored voltage for example, falls below 23 V DC.
  • the Overcurrent detector 19 monitors that in series circuit 2 flowing current in the form of a voltage across the Measuring resistor 11 and generates an error message if the monitored current exceeds 300 mA, for example.
  • the Error messages from the detectors 16, 17, 18, 19 become one Error circuit 20 supplied to at least one Error message opens the circuit breaker 9, the voltage at the input In of the DC-DC voltage converter 10 switches off.
  • the error circuit 20 stores the errors that have occurred, for example by a parent Diagnostic circuit can be read out. For manual Reset of the error circuit 20 is a button 21 intended.
  • Fig. 2 shows details of the network 14 and the Limiter 15 for voltage regulation over the Safety relay 4. If series circuit 2 is open, becomes the output voltage of the voltage converter 10 by means of a Zener diode Z1 to, for example, 53 V DC kept constant. A capacitor C1 increases the dynamic Behavior of the limiter 15.

Landscapes

  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP00121084A 1999-10-08 2000-09-28 Chaîne de sécurité pour installation d'ascenseur Expired - Lifetime EP1090870B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00121084A EP1090870B1 (fr) 1999-10-08 2000-09-28 Chaîne de sécurité pour installation d'ascenseur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810919 1999-10-08
EP99810919 1999-10-08
EP00121084A EP1090870B1 (fr) 1999-10-08 2000-09-28 Chaîne de sécurité pour installation d'ascenseur

Publications (2)

Publication Number Publication Date
EP1090870A1 true EP1090870A1 (fr) 2001-04-11
EP1090870B1 EP1090870B1 (fr) 2007-07-04

Family

ID=26071451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121084A Expired - Lifetime EP1090870B1 (fr) 1999-10-08 2000-09-28 Chaîne de sécurité pour installation d'ascenseur

Country Status (1)

Country Link
EP (1) EP1090870B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010060950A1 (fr) 2008-11-27 2010-06-03 Inventio Ag Dispositif de contrôle d'une chaîne de sécurité d'un ascenseur
AU2016369356B2 (en) * 2015-12-17 2019-09-26 Inventio Ag Method for monitoring a safety circuit of a lift system and monitoring device for a safety circuit of a lift system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037347A1 (de) * 2009-08-14 2011-02-17 K.A. Schmersal Holding Gmbh & Co. Kg Elektronisches Sicherheitssystem für einen Aufzug
WO2017167758A1 (fr) 2016-03-31 2017-10-05 Inventio Ag Système d'ascenseur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010060950A1 (fr) 2008-11-27 2010-06-03 Inventio Ag Dispositif de contrôle d'une chaîne de sécurité d'un ascenseur
US8552738B2 (en) 2008-11-27 2013-10-08 Inventio Ag Device for checking a safety circuit of an elevator
AU2016369356B2 (en) * 2015-12-17 2019-09-26 Inventio Ag Method for monitoring a safety circuit of a lift system and monitoring device for a safety circuit of a lift system

Also Published As

Publication number Publication date
EP1090870B1 (fr) 2007-07-04

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