GB2225679B - Elevator control apparatus - Google Patents

Elevator control apparatus

Info

Publication number
GB2225679B
GB2225679B GB8920968A GB8920968A GB2225679B GB 2225679 B GB2225679 B GB 2225679B GB 8920968 A GB8920968 A GB 8920968A GB 8920968 A GB8920968 A GB 8920968A GB 2225679 B GB2225679 B GB 2225679B
Authority
GB
United Kingdom
Prior art keywords
brake
braking force
current
actuating signal
released
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 - Fee Related
Application number
GB8920968A
Other versions
GB2225679A (en
GB8920968D0 (en
Inventor
Masami Nomura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB8920968D0 publication Critical patent/GB8920968D0/en
Publication of GB2225679A publication Critical patent/GB2225679A/en
Application granted granted Critical
Publication of GB2225679B publication Critical patent/GB2225679B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/02—Details
    • H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake, eddy-current brake
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes

Abstract

A brake 8 has a brake coil 14 which is deenergized to generate a braking force so as to brake an elevator cage 17, and is energized in response to a start command signal to release the braking force. To coordinate brake and motor operation, current sensing means 21 sense a change in current of said brake coil as based on a change in an inductance thereof after the current has reached a predetermined value, and deliver an actuating signal, when the braking force of said brake is released, to a drive circuit 5 which, when supplied with the actuating signal, feeds electric power to a motor 2 for driving the elevator cage 17. The actuating signal can be used to lower the voltage applied to the brake coil when the braking force of the brake is released (Figs 5 and 8). A fault finding circuit is actuated when a detection signal (6, Fig 2) indicating release of the brake is not obtained on lapse of a time delay provided by a counter (30). <IMAGE>
GB8920968A 1988-10-18 1989-09-15 Elevator control apparatus Expired - Fee Related GB2225679B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63260642A JPH02110090A (en) 1988-10-18 1988-10-18 Elevator controller

Publications (3)

Publication Number Publication Date
GB8920968D0 GB8920968D0 (en) 1989-11-01
GB2225679A GB2225679A (en) 1990-06-06
GB2225679B true GB2225679B (en) 1992-10-14

Family

ID=17350757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8920968A Expired - Fee Related GB2225679B (en) 1988-10-18 1989-09-15 Elevator control apparatus

Country Status (2)

Country Link
JP (1) JPH02110090A (en)
GB (1) GB2225679B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675790A1 (en) * 1991-04-26 1992-10-30 Materiel Ind Equipement Device for monitoring a winch brake
DE19523848C1 (en) * 1995-06-30 1996-11-28 Deemotors Vertriebs Gmbh Operation of invertor-fed induction motor driving braked hoist
DE69921106T2 (en) 1999-01-25 2005-11-24 Mitsubishi Denki K.K. CONTROL DEVICE FOR ELEVATOR BRAKE
GB2381052B (en) * 2001-10-17 2005-05-18 Lansing Linde Ltd Method for operating a brake which has an electromagnet and electronic controller therefor
CN1325361C (en) * 2002-09-27 2007-07-11 三菱电机株式会社 Brake controller of elevator
FR2873871B1 (en) * 2004-07-29 2006-11-24 Moteurs Patay Soc Par Actions DEVICE FOR ELECTRICALLY SUPPLYING A BRAKE
FI120986B (en) 2008-11-03 2010-05-31 Kone Corp Arrangement and method of monitoring brake operation and lift system
FI120938B (en) * 2009-02-06 2010-05-14 Kone Corp Arrangement and method of controlling the lift brake
FI126171B (en) 2014-06-19 2016-07-29 Kone Corp System, machine brake and procedure for controlling a machine brake
EP3216734B1 (en) * 2016-03-07 2018-07-18 Ziehl-Abegg SE Elevator braking device and method for driving a lift brake
EP3403967B1 (en) * 2017-05-15 2019-07-03 KONE Corporation A current cut-off arrangement of an elevator
CN114216661A (en) * 2021-10-22 2022-03-22 盐城和阳驱动科技有限公司 Service life detection device for traction machine brake

Also Published As

Publication number Publication date
GB2225679A (en) 1990-06-06
JPH02110090A (en) 1990-04-23
GB8920968D0 (en) 1989-11-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940915