JPS6430485A - Elevator controller - Google Patents

Elevator controller

Info

Publication number
JPS6430485A
JPS6430485A JP62184075A JP18407587A JPS6430485A JP S6430485 A JPS6430485 A JP S6430485A JP 62184075 A JP62184075 A JP 62184075A JP 18407587 A JP18407587 A JP 18407587A JP S6430485 A JPS6430485 A JP S6430485A
Authority
JP
Japan
Prior art keywords
offset
correction
current detector
current
sine
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.)
Pending
Application number
JP62184075A
Other languages
Japanese (ja)
Inventor
Takanobu Masashiro
Kenji Sakamoto
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
Priority to JP62184075A priority Critical patent/JPS6430485A/en
Publication of JPS6430485A publication Critical patent/JPS6430485A/en
Pending legal-status Critical Current

Links

Landscapes

  • Elevator Control (AREA)
  • Control Of Ac Motors In General (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To improve the accuracy of correction of the offset quantity of a current detector and perform a good elevator control by correcting said offset quantity of a current detector so as to eliminate the effect of a residual voltage component. CONSTITUTION:By a floor-touching motion ending signal Py, a switch 47 is diverted so as to select a given slip command value omegaos, and a sine-wave function generator 44 changes a sine-wave at a relatively high frequency. As a result, current reference signals iu, iv, iw are attenuated to a zero amplitude, while alternating with each other for several cycles. In this process, the residual voltage component of a current detector approaches zero while narrowing a hysteresis curve gradually. When the attenuation of said current command signals iu, iv, iw ends, an automatic offset correction starting signal is outputted and the correction of offset is performed.
JP62184075A 1987-07-23 1987-07-23 Elevator controller Pending JPS6430485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62184075A JPS6430485A (en) 1987-07-23 1987-07-23 Elevator controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62184075A JPS6430485A (en) 1987-07-23 1987-07-23 Elevator controller

Publications (1)

Publication Number Publication Date
JPS6430485A true JPS6430485A (en) 1989-02-01

Family

ID=16146946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62184075A Pending JPS6430485A (en) 1987-07-23 1987-07-23 Elevator controller

Country Status (1)

Country Link
JP (1) JPS6430485A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH037095A (en) * 1989-06-02 1991-01-14 Fuji Electric Co Ltd Controlling method for induction motor
JP2001298992A (en) * 2000-04-18 2001-10-26 Toyota Motor Corp Motor controller
JP2014003802A (en) * 2012-06-19 2014-01-09 Sanden Corp Motor controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH037095A (en) * 1989-06-02 1991-01-14 Fuji Electric Co Ltd Controlling method for induction motor
JP2001298992A (en) * 2000-04-18 2001-10-26 Toyota Motor Corp Motor controller
JP2014003802A (en) * 2012-06-19 2014-01-09 Sanden Corp Motor controller
US9595899B2 (en) 2012-06-19 2017-03-14 Sanden Holdings Corporation Motor control device

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