ES8405721A1 - Lift system - Google Patents

Lift system

Info

Publication number
ES8405721A1
ES8405721A1 ES524199A ES524199A ES8405721A1 ES 8405721 A1 ES8405721 A1 ES 8405721A1 ES 524199 A ES524199 A ES 524199A ES 524199 A ES524199 A ES 524199A ES 8405721 A1 ES8405721 A1 ES 8405721A1
Authority
ES
Spain
Prior art keywords
signal
terminal
function
compared
maximum allowable
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.)
Expired
Application number
ES524199A
Other languages
Spanish (es)
Other versions
ES524199A0 (en
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES8405721A1 publication Critical patent/ES8405721A1/en
Publication of ES524199A0 publication Critical patent/ES524199A0/en
Granted legal-status Critical Current

Links

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
    • B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
    • B66B5/10—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding electrical

Landscapes

  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

A lift system having an overspeed monitoring function for monitoring terminal stops includes an electromechanical transducer (52) arranged to provide a first signal (ECI) related to desired or nominal speed as a function of the distance of the car from the terminal floor. The first signal is processed (86) to have substantially the same magnitude and slope as a second signal (TACI) produced by a tachometer (70) during a normal terminal slowdown. The first and second signals are compared (82) to provide a deviation or error signal which in turn is compared with a reference (92) selected according to the maximum allowable speed error. Should this maximum allowable speed error be reached, the overspeed function provides a signal which may be used to initiate an emergency terminal stop.
ES524199A 1982-07-19 1983-07-18 AN ELEVATOR INSTALLATION IN A BUILDING THAT HAS A PLURALITY OF PLANTS Granted ES524199A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39950882A 1982-07-19 1982-07-19

Publications (2)

Publication Number Publication Date
ES8405721A1 true ES8405721A1 (en) 1984-06-16
ES524199A0 ES524199A0 (en) 1984-06-16

Family

ID=23579786

Family Applications (1)

Application Number Title Priority Date Filing Date
ES524199A Granted ES524199A0 (en) 1982-07-19 1983-07-18 AN ELEVATOR INSTALLATION IN A BUILDING THAT HAS A PLURALITY OF PLANTS

Country Status (6)

Country Link
JP (1) JPS5964480A (en)
AU (1) AU1684683A (en)
BR (1) BR8303798A (en)
ES (1) ES524199A0 (en)
FR (1) FR2530232A1 (en)
GB (1) GB2126375A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136153B (en) * 1983-02-07 1986-10-22 Secr Defence Control system monitor
DE4036073A1 (en) * 1990-11-13 1992-05-14 Deimann Rudolf DEVICE FOR RELEASING A COLLECTING DEVICE FOR THE CAR BASKET OF AN ELEVATOR
JP5026361B2 (en) * 2008-07-14 2012-09-12 三菱電機株式会社 Elevator equipment
JP6396528B1 (en) 2017-03-24 2018-09-26 株式会社東芝 Hydraulic blade movable blade operation system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH324296A (en) * 1954-08-12 1957-09-15 Inventio Ag Equipment on elevators for precise stopping at floor level
US3779346A (en) * 1972-05-17 1973-12-18 Westinghouse Electric Corp Terminal slowdown control for elevator system
US4085823A (en) * 1975-11-03 1978-04-25 Westinghouse Electric Corporation Elevator system
JPS52123054A (en) * 1976-04-06 1977-10-15 Mitsubishi Electric Corp Emergency braking device for elevator
US4318456A (en) * 1980-05-16 1982-03-09 Westinghouse Electric Corp. Terminal slowdown control for elevator system

Also Published As

Publication number Publication date
FR2530232A1 (en) 1984-01-20
AU1684683A (en) 1984-01-26
BR8303798A (en) 1984-02-21
JPS5964480A (en) 1984-04-12
GB8318722D0 (en) 1983-08-10
ES524199A0 (en) 1984-06-16
GB2126375A (en) 1984-03-21

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