JPS6430485A - Elevator controller - Google Patents
Elevator controllerInfo
- 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
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.
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)
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 |
-
1987
- 1987-07-23 JP JP62184075A patent/JPS6430485A/en active Pending
Cited By (4)
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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