ATE35471T1 - MONITORING CIRCUIT FOR ELEVATOR SAFETY CONTACTS. - Google Patents

MONITORING CIRCUIT FOR ELEVATOR SAFETY CONTACTS.

Info

Publication number
ATE35471T1
ATE35471T1 AT84112557T AT84112557T ATE35471T1 AT E35471 T1 ATE35471 T1 AT E35471T1 AT 84112557 T AT84112557 T AT 84112557T AT 84112557 T AT84112557 T AT 84112557T AT E35471 T1 ATE35471 T1 AT E35471T1
Authority
AT
Austria
Prior art keywords
safety
supply voltage
circuit
voltage terminal
terminal
Prior art date
Application number
AT84112557T
Other languages
German (de)
Inventor
Karl-Otto Dipl-Ing Schoellkopf
Original Assignee
Thyssen Man Aufzuege
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 Aufzuege filed Critical Thyssen Man Aufzuege
Application granted granted Critical
Publication of ATE35471T1 publication Critical patent/ATE35471T1/en

Links

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

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

1. Supervisory circuit for safety contacts (Si ) located in the safety circuit of at least one travelling contactor (RA, RS) of lift-control gear, in particular door and bolt contacts, which are connected in series with the at least one travelling contactor (RA, RS) along a safety section (A-B) between a first supply voltage terminal (A) and a second supply voltage terminal (B), each of the safety contacts (Si ) being associated with a control circuit (Ki ) producing an evaluatable control signal characteristic of the state of the associated safety switch, one terminal of the control circuit being connected to the side of the associated safety contact (Si ) remote from the first supply voltage terminal (A) and the other terminal of the control circuit being connected to the second supply voltage terminal (B), characterized in that the internal resistance (Ri ) of each of the control circuits (Ki ) is selected so that in the most unfavourable case, namely in the case of a disconnection (U) in the supervisory circuit and with the simultaneous of an open safety contact (Si ), in particular in the middle of the series connection, a current, which flows by way of the control circuits (Ki ) comprising only one finite internal resistance (Ri ) and the safety section (A-B), at the at least one travelling contactor (RA, RS) merely leads to a voltage drop, which clearly lies below the response threshold and the drop-out threshold for the travelling contactor (RA, RS).
AT84112557T 1983-11-30 1984-10-18 MONITORING CIRCUIT FOR ELEVATOR SAFETY CONTACTS. ATE35471T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833343303 DE3343303A1 (en) 1983-11-30 1983-11-30 MONITORING CIRCUIT FOR THE SAFETY CONTACTS OF ELEVATOR
EP84112557A EP0149727B1 (en) 1983-11-30 1984-10-18 Supervisory circuit for the safety contacts of elevators

Publications (1)

Publication Number Publication Date
ATE35471T1 true ATE35471T1 (en) 1988-07-15

Family

ID=6215659

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84112557T ATE35471T1 (en) 1983-11-30 1984-10-18 MONITORING CIRCUIT FOR ELEVATOR SAFETY CONTACTS.

Country Status (3)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321216A (en) * 1991-04-09 1994-06-14 Otis Elevator Company Restraining elevator car motion while the doors are open
FR2777087B1 (en) 1998-04-03 2000-05-05 Otis Elevator Co DEVICE FOR LOCATING A LOCKING DOOR CLOSING FAILURE IN AN ELEVATOR INSTALLATION
DE19849238C1 (en) * 1998-10-26 2000-03-09 O & K Rolltreppen Gmbh Safety cut-out method for escalator or moving walkway has safety fault signals provided by safety chain combined with drive monitoring signals for operation of drive cut-out contacts
FI117797B (en) 2005-04-08 2007-02-28 Kone Corp Elevator system
WO2006108433A1 (en) * 2005-04-11 2006-10-19 Otis Elevator Company Safety circuit for a passenger conveyor system
AT502582B1 (en) * 2005-09-20 2008-05-15 Tuev Oesterreich Tech Ueberwac MONITORING EQUIPMENT OF AN ELEVATOR
FI120088B (en) * 2007-03-01 2009-06-30 Kone Corp Arrangement and method of monitoring the security circuit
CA2775635C (en) * 2009-10-26 2017-09-12 Inventio Ag Safety circuit in an elevator system
CN103809503A (en) * 2014-03-04 2014-05-21 北京七星华创电子股份有限公司 Safety door interlocking system of semiconductor equipment
EP3292064A1 (en) * 2015-05-05 2018-03-14 Inventio AG Lift monitoring unit having a galvanically decoupled signal transmission
CN104816996A (en) * 2015-05-07 2015-08-05 广州永日电梯有限公司 Detecting method of short circuit of door lock loop of elevator landing door
EP3305703A1 (en) * 2016-10-04 2018-04-11 KONE Corporation Elevator brake controller
CN112327984B (en) * 2020-10-16 2022-04-19 苏州汇川技术有限公司 Safety loop voltage regulating circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068873B (en) * 1959-11-12
US2614160A (en) * 1951-07-28 1952-10-14 Gen Electric Indicating system
DE2611145A1 (en) * 1976-03-17 1977-09-22 Grothe & Soehne Kg A Vibration operated burglar alarm - protects many separated objects by monitoring current through line connecting vibration prone contacts
GB2073434B (en) * 1980-03-28 1984-03-14 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

Also Published As

Publication number Publication date
DE3343303A1 (en) 1985-08-08
DE3472481D1 (en) 1988-08-04
EP0149727A1 (en) 1985-07-31
EP0149727B1 (en) 1988-06-29

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee