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
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).
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)
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)
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 |
-
1983
- 1983-11-30 DE DE19833343303 patent/DE3343303A1/en not_active Withdrawn
-
1984
- 1984-10-18 AT AT84112557T patent/ATE35471T1/en not_active IP Right Cessation
- 1984-10-18 DE DE8484112557T patent/DE3472481D1/en not_active Expired
- 1984-10-18 EP EP84112557A patent/EP0149727B1/en not_active Expired
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 |