SG139725A1 - Control device of elevator - Google Patents

Control device of elevator

Info

Publication number
SG139725A1
SG139725A1 SG200705759-9A SG2007057599A SG139725A1 SG 139725 A1 SG139725 A1 SG 139725A1 SG 2007057599 A SG2007057599 A SG 2007057599A SG 139725 A1 SG139725 A1 SG 139725A1
Authority
SG
Singapore
Prior art keywords
current
current sensor
control device
elevator
detected
Prior art date
Application number
SG200705759-9A
Inventor
Shuichi Nojima
Original Assignee
Toshiba Elevator Kk
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 Toshiba Elevator Kk filed Critical Toshiba Elevator Kk
Publication of SG139725A1 publication Critical patent/SG139725A1/en

Links

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Elevator Control (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

A current, which is supplied from an inverter device to a motor, is detected by a current sensor. Based on the value of the current that is detected by the current sensor, a control device controls driving of the inverter device. At this time, the control device supplies a current for demagnetization to the current sensor in a short time period, for example, each time an elevator is stopped at a target floor, thus restoring the current sensor to a reset state. Thereby, a detection error due to a residual magnetic flux can be eliminated, and high-accuracy speed control can always be executed by exact current detection.
SG200705759-9A 2006-08-10 2007-08-07 Control device of elevator SG139725A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006218622A JP2008044681A (en) 2006-08-10 2006-08-10 Control device of elevator

Publications (1)

Publication Number Publication Date
SG139725A1 true SG139725A1 (en) 2008-02-29

Family

ID=39084021

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200705759-9A SG139725A1 (en) 2006-08-10 2007-08-07 Control device of elevator

Country Status (5)

Country Link
JP (1) JP2008044681A (en)
KR (1) KR100991953B1 (en)
CN (1) CN101121482B (en)
MY (1) MY149479A (en)
SG (1) SG139725A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010202364A (en) * 2009-03-04 2010-09-16 Toshiba Elevator Co Ltd Elevator control device
CN105281634B (en) * 2014-07-21 2018-03-06 苏州伟创电气设备技术有限公司 A kind of motor demagnetization method and device
JP6293080B2 (en) * 2015-03-13 2018-03-14 株式会社日立製作所 Passenger conveyor device and control method thereof
JP2017057056A (en) * 2015-09-16 2017-03-23 東芝エレベータ株式会社 Elevator
CN106451358A (en) * 2016-10-13 2017-02-22 湘潭电机股份有限公司 IGBT de-excitation method
CN111217214A (en) * 2019-12-25 2020-06-02 日立电梯（中国）有限公司 Elevator host protection method and device, computer equipment and storage medium
CN114590667B (en) * 2022-03-16 2023-05-30 武汉信达天成物联网技术有限公司 Identification and early warning method and system for construction elevator safety risk

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023268A (en) * 1983-07-18 1985-02-05 三菱電機株式会社 Speed controller for elevator
JPH06104289B2 (en) * 1988-07-20 1994-12-21 フジ磁工株式会社 Degaussing device for electromagnetic chuck
JPH0350931U (en) * 1989-09-20 1991-05-17
JP2503712B2 (en) * 1990-03-08 1996-06-05 三菱電機株式会社 Elevator speed control device
JP2502167B2 (en) * 1990-05-24 1996-05-29 三菱電機株式会社 Elevator speed control device
JPH04257192A (en) * 1991-02-08 1992-09-11 Nippon Avionics Co Ltd Shadow mask demagnetizing circuit for cathode-ray tube display device
JPH04308179A (en) * 1991-04-04 1992-10-30 Mitsubishi Denki Bill Techno Service Kk Sliding door device for elevator
JPH0583991A (en) * 1991-09-20 1993-04-02 Mitsubishi Electric Corp Elevator controller
JP2687062B2 (en) * 1992-02-14 1997-12-08 株式会社三協精機製作所 Motor control device
JP3044967B2 (en) * 1993-04-15 2000-05-22 松下電器産業株式会社 Flow measurement device
JP3011122U (en) * 1994-11-14 1995-05-16 船井電機株式会社 Degaussing circuit
JP3315332B2 (en) * 1996-12-02 2002-08-19 富士電機株式会社 Inverter control device
JPH1183909A (en) 1997-09-10 1999-03-26 Meidensha Corp Current detecting circuit of inverter equipment
JP2001199644A (en) * 2000-01-19 2001-07-24 Hitachi Ltd Controller for elevator
JP2003018852A (en) 2001-06-28 2003-01-17 Yaskawa Electric Corp Inverter device
JP2004265188A (en) * 2003-03-03 2004-09-24 Matsushita Electric Ind Co Ltd Track ball device
JP2005162462A (en) * 2003-12-05 2005-06-23 Mitsubishi Electric Corp Control device of elevator
JP2005170539A (en) * 2003-12-08 2005-06-30 Mitsubishi Electric Corp Elevator control device

Also Published As

Publication number Publication date
CN101121482B (en) 2010-06-02
JP2008044681A (en) 2008-02-28
MY149479A (en) 2013-08-30
KR20080014650A (en) 2008-02-14
CN101121482A (en) 2008-02-13
KR100991953B1 (en) 2010-11-04

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