EP3080030B1 - Sicherheitskreis für eine aufzugsanlage - Google Patents

Sicherheitskreis für eine aufzugsanlage Download PDF

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Publication number
EP3080030B1
EP3080030B1 EP14800042.5A EP14800042A EP3080030B1 EP 3080030 B1 EP3080030 B1 EP 3080030B1 EP 14800042 A EP14800042 A EP 14800042A EP 3080030 B1 EP3080030 B1 EP 3080030B1
Authority
EP
European Patent Office
Prior art keywords
circuit
switching
state
safety
voltage
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.)
Not-in-force
Application number
EP14800042.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3080030A1 (de
Inventor
Ivo LUSTENBERGER
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 PL14800042T priority Critical patent/PL3080030T3/pl
Priority to EP14800042.5A priority patent/EP3080030B1/de
Publication of EP3080030A1 publication Critical patent/EP3080030A1/de
Application granted granted Critical
Publication of EP3080030B1 publication Critical patent/EP3080030B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • 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
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H2001/0005—Redundant contact pairs in one switch for safety reasons

Definitions

  • the invention relates to a safety circuit for the safe operation of an elevator system and an elevator system with such a safety circuit according to the independent claims.
  • Today's elevator systems are equipped with a safety circuit. This consists of several series-connected switching contacts of different safety elements for shaft, door and rope monitoring. Opening one of these switch contacts causes the entire safety circuit to be interrupted. This in turn causes the interruption of the supply for the main drive, the engagement of the brake and thus taking a safe state of rest of the elevator system.
  • a wiring harness of the safety circuit leading to the safety elements and a wiring harness of the safety circuit returning from the safety elements are often located close to one another.
  • a cross-circuit between the leading and returning wiring harness can not be excluded. But a cross-circuit of these line strands has the consequence that all switching contacts are bridged in the intervening wiring harness and thus their switching state can not be detected or are always seen as closed. So far, this could only be prevented by a reliable but relatively complex isolation.
  • US5107964 A discloses a safety circuit according to the preamble of claim 1.
  • the safety circuit for an elevator installation preferably comprises a first circuit with a plurality of switching contacts and a second circuit with a plurality of switching contacts.
  • the switching contacts of the first circuit are connected in series and the switching contact of the second circuit connected in parallel.
  • At least one switching contact of the first circuit is a switching contact of the assigned to the second circle.
  • all switching contact of the first circle are assigned to a switching contact of the second circle.
  • a cross-circuit is reliably detected. Because in the case of a cross-circuit, a current flow or a voltage would be measurable in the second circuit, in which all the switch contacts are open in the operating state. Accordingly, the elevator system would be brought into a safe state of rest.
  • a switching contact of the first circuit forcibly switches the associated switching contact of the second circuit.
  • the security can be additionally increased.
  • a cross-circuit of the cross-circuit can also be done only between two harnesses of the first circle and would therefore not be seen. Thanks to the forced closing of the associated switching contact of the second circuit ensures that even in the bridged region of the safety circuit, at least the switching contact of the second circuit recognizable switched, namely, is closed when the switching contact of the first circle is opened.
  • the elevator system can be brought into a safe state of rest even in this situation.
  • the safety circuit preferably has a logic circuit which monitors the switching state of the first circuit and / or the switching state of the second circuit.
  • the logic circuit is connected to the safety circuit and measures a current or voltage value that is applied to the respective circuit.
  • the logic circuit interrupts at least one voltage or power supply to the main drive and / or brake and / or control.
  • the elevator system is shut down and is in a safe state of rest.
  • a first contactor is associated with the first circle and a second contactor with the second circle.
  • the first and the second contactor is dependent on the voltage or current state of the associated circuit a voltage or power supply to the main drive and / or control and / or brake can be interrupted.
  • the voltage or current supply to the main drive and / or to the brake and / or to the control is interrupted.
  • the voltage or power supply to the main drive and / or the brake and / or the control is interrupted.
  • the invention is also related to an elevator installation with a safety circuit described above.
  • the FIG. 1 shows a safety circuit 1, which is constructed redundantly and has a first circle 2 and a second circle 3.
  • the first circuit 2 comprises a plurality of switching contacts 6.1, 6.2, 6.n, which are connected in series.
  • the second circuit 3 also includes a plurality of switching contacts 5.1, 5.2, 5.n, which are connected in parallel.
  • Each switching contact 6.1 of the first circle 2 is assigned a switching contact 5.1 of the second circle 3.
  • Such a switching contact pair 6.1, 5.1 monitors a state of a safety-relevant component of the elevator, such as a shaft door, a car door, a speed limit system, emergency stop switch or a shaft limit switch.
  • each circuit 2, 3 has 3 switching contacts. Needless to say, the number of switching contacts which comprise the circuits 2, 3 may vary depending on the number of components to be monitored.
  • the switching contacts 6.1, 6.2, 6.n of the first circle 2 are switched to the switching contacts 5.1, 5.2, 5.n of the second circle 3 opposite.
  • the first circuit 2 is in an operating state when all the switching contacts 6.1, 6.2, 6.n are closed.
  • the second circuit 3 then in an operating state, when all the switching contacts 6.1, 6.2, 6.n are open.
  • a switching contact 6.1, 6.2, 6.n of the first circle 2 is opened or a switching contact 5.1, 5.2, 5.n of the second circle 3 is closed, the first and second circuits 2, 3 are each in a safe state.
  • a switching contact 5.1, 5.2, 5.n of the second circuit 3 is preferably forcibly connected via a connection 7.1, 7.2, 7.n by a switching contact 6.1, 6.2, 6.n of the first circuit 2. This ensures that associated switching contacts 6.1, 5.1 simultaneously only in an operating state when the switching contact 6.1 of the first circle 2 is closed and the switching contact 5.1 of the second circle 3 is open, or in a safe state when the switching contact 6.1 of the first circle 2 open and the switching contact 5.1 of the second circle 3 is closed, can be located.
  • the two circles 2, 3 are powered by a 24V power source. It is at the discretion of the skilled person to select a suitable for his purpose voltage source whose voltage for example, at 12V, 36V, 110V, or any other voltage value.
  • a corresponding current flows via the switching contacts 6.1, 6.2, 6.n.
  • a first contactor 8 is connected at the end of the first circuit 2, on the one hand, with the same and, on the other hand, with a 0V conductor.
  • the first contactor 8 comprises a switching magnet 8.1 and a switch 8.2, the latter being integrated in a three-phase supply 10 of a main drive 11.
  • the supply is typically 380V, but may differ from country to country.
  • the solenoid 8.1 switches according to a switching state of the first circuit 2 the associated switch 8.2.
  • the energized solenoid 8.1 keeps the switch 8.2 closed.
  • the switch 8.2 is opened and the supply 10 to the main drive 11 is interrupted. So it is at the switch 8.2 to a Schliesserutton that is open in the normal state or de-energized state.
  • a second contactor 9 is connected at the end of the second circle 3 on the one hand with selbigem and on the other hand with a 0V conductor.
  • the second contactor 9 comprises a switching magnet 9.1 and a switch 9.2, the latter being integrated in the supply 10 of the main drive 11.
  • the solenoid 9.1 switches according to a switching state of the second circuit 3, the associated switch 9.2. In this case, the switch 9.2 is closed as long as the solenoid 9.1 is de-energized.
  • the solenoid 9.1 is powered and opened the associated switch 9.2.
  • the supply 10 to the main drive 11 is interrupted. So it is at the switch 9.2 to a normally closed contact, which is closed in the normal state or de-energized state. Thanks to the parallel connection of the switching contacts 5.1, 5.2, 5.n, the contactor 9 responds when closing each individual switching contact 5.1, 5.2, 5.n.
  • the FIG. 2 shows the safety circuit 1 FIG. 2 in a safe condition.
  • a switching contact 6.n of the first circuit 2 is open and the associated switching contact 5.n of the second circuit 3 is closed. Accordingly, both the first and second circuits 2, 3 assume a safe state.
  • the first contactor 8 and the second contactor 9 interrupt one Supply 10 of the main drive 11. Thus, the elevator system can be transferred to a safe state of rest.
  • FIG. 3 an embodiment of the safety circuit 1 is shown, in which instead of shooters 8, 9, a logic circuit 12 is provided to a first switch 13.1 or second switch 13.2 in the supply 10 of the according to a switching state of the first and / or the second circle Main drive 11 to switch.
  • the logic circuit 12 comprises a first circuit 12.1 connected to the first circuit 2 and a second circuit 12.2 connected to the second circuit 3. Both the first and the second circuit 12.1, 12.2 is connected to a 0V conductor.
  • the safety circuit 1 is in an operating state. All switching contacts 6.1, 6.2, 6.n of the first circle 2 are closed and all switching contacts 5.1, 5.2, 5.n of the second circle 3 are open. Accordingly, a current flows through the first circuit 2 and a current flow via the second circuit 3 is interrupted.
  • the logic circuits 12.1, 12.2 evaluate the incoming current or voltage values and keep the associated switches 13.1, 13.2 closed.
  • a switching contact 6.1 of the first circuit 2 is opened and / or a switching contact 5.1 of the second circuit 3 is closed, the current or voltage value changes in the corresponding circuit 2, 3.
  • the first circuit 12.1 now measures a current or voltage value of Zero and opens the associated switch 13.1 in the supply 10 of the main drive 11.
  • the elevator system be transferred to a safe state of rest.
  • Both switches 13.1, 13.2 designed as a closing contact.
  • only one of the two switches 13.1, 13.2 can be designed as a closing contact and the other switch 13.1, 13.2 as a normally closed contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Elevator Control (AREA)
  • Control And Safety Of Cranes (AREA)
  • Safety Devices In Control Systems (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP14800042.5A 2013-12-09 2014-11-18 Sicherheitskreis für eine aufzugsanlage Not-in-force EP3080030B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL14800042T PL3080030T3 (pl) 2013-12-09 2014-11-18 Obwód bezpieczeństwa dla instalacji dźwigowej
EP14800042.5A EP3080030B1 (de) 2013-12-09 2014-11-18 Sicherheitskreis für eine aufzugsanlage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13196227 2013-12-09
PCT/EP2014/074941 WO2015086271A1 (de) 2013-12-09 2014-11-18 Sicherheitskreis für eine aufzugsanlage
EP14800042.5A EP3080030B1 (de) 2013-12-09 2014-11-18 Sicherheitskreis für eine aufzugsanlage

Publications (2)

Publication Number Publication Date
EP3080030A1 EP3080030A1 (de) 2016-10-19
EP3080030B1 true EP3080030B1 (de) 2018-03-07

Family

ID=49726616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14800042.5A Not-in-force EP3080030B1 (de) 2013-12-09 2014-11-18 Sicherheitskreis für eine aufzugsanlage

Country Status (7)

Country Link
US (1) US10239729B2 (pl)
EP (1) EP3080030B1 (pl)
CN (1) CN105813972B (pl)
ES (1) ES2668868T3 (pl)
PL (1) PL3080030T3 (pl)
TR (1) TR201807531T4 (pl)
WO (1) WO2015086271A1 (pl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105829232B (zh) * 2013-12-18 2017-12-08 因温特奥股份公司 用于电梯设备的安全系统
WO2016096269A1 (de) * 2014-12-17 2016-06-23 Inventio Ag Sicherheitsschaltung für eine aufzugsanlage
WO2016150469A1 (en) * 2015-03-20 2016-09-29 Otis Elevator Company Elevator testing arrangement
EP3257799B1 (en) * 2016-06-17 2022-02-23 KONE Corporation Redundant safety circuit
WO2018010991A1 (en) * 2016-07-14 2018-01-18 Inventio Ag Elevator with safety chain overlay control unit comprising a safety plc separately monitoring various safety switches for increasing a safety integrity level
IL247342A (en) * 2016-08-18 2017-10-31 Yoram Madar Detection and control of an arrest prevented an elevator
IT201900006980A1 (it) * 2019-05-17 2020-11-17 Astra S R L Sistema di controllo del funzionamento di un apparato dotato di mezzi motori controllati e regolati elettricamente
US20210101777A1 (en) * 2019-10-03 2021-04-08 Otis Elevator Company Elevator brake control

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US5107964A (en) 1990-05-07 1992-04-28 Otis Elevator Company Separate elevator door chain
US6173814B1 (en) * 1999-03-04 2001-01-16 Otis Elevator Company Electronic safety system for elevators having a dual redundant safety bus
DK1638880T4 (da) * 2003-06-30 2013-10-14 Inventio Ag Sikkerhedssystem til et elevatoranlæg
DE602004032182D1 (de) * 2004-02-26 2011-05-19 Mitsubishi Electric Corp Sicherheitsvorrichtung für aufzug
JP2009023820A (ja) * 2007-07-23 2009-02-05 Toshiba Elevator Co Ltd エレベータの安全監視システム
CN102036898B (zh) * 2008-06-27 2013-05-01 三菱电机株式会社 电梯装置及其运转方法
CN101492138B (zh) * 2009-03-12 2011-02-16 石家庄五龙制动器有限公司 电梯制动系统的控制电路及控制方法
DE102009037347A1 (de) * 2009-08-14 2011-02-17 K.A. Schmersal Holding Gmbh & Co. Kg Elektronisches Sicherheitssystem für einen Aufzug
JP2011063431A (ja) * 2009-09-18 2011-03-31 Toshiba Elevator Co Ltd エレベータの安全回路
CA2775635C (en) * 2009-10-26 2017-09-12 Inventio Ag Safety circuit in an elevator system
EP2452907A1 (en) * 2010-11-11 2012-05-16 Inventio AG Elevator Safety Circuit
ES2439326T3 (es) * 2011-09-06 2014-01-22 Cedes Ag Sensor, dispositivo de seguridad así como dispositivo elevador
EP2604563B1 (de) * 2011-12-12 2015-10-21 Cedes AG Sicherungsvorrichtung Antriebsvorrichtung und Aufzugvorrichtung
EP2604566B1 (de) * 2011-12-12 2014-03-26 Cedes AG Sicherungsvorrichtung sowie Aufzugvorrichtung
FI123507B (fi) * 2012-08-07 2013-06-14 Kone Corp Turvapiiri sekä hissijärjestelmä
WO2014124779A1 (de) * 2013-02-12 2014-08-21 Inventio Ag Batteriegestützte sicherheitskreis-überwachungsanlage
CN105189292B (zh) * 2013-02-12 2017-03-29 因温特奥股份公司 应用交流电压的安全电路监控器
WO2014126562A1 (en) * 2013-02-14 2014-08-21 Otis Elevator Company Elevator safety circuit
CN107428498B (zh) * 2015-04-01 2022-01-14 通力股份公司 制动控制设备和控制电梯制动器的方法

Also Published As

Publication number Publication date
TR201807531T4 (tr) 2018-06-21
US20170001833A1 (en) 2017-01-05
ES2668868T3 (es) 2018-05-22
WO2015086271A1 (de) 2015-06-18
CN105813972A (zh) 2016-07-27
PL3080030T3 (pl) 2018-08-31
US10239729B2 (en) 2019-03-26
CN105813972B (zh) 2017-11-24
EP3080030A1 (de) 2016-10-19

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