JPS61123698U - - Google Patents
Info
- Publication number
- JPS61123698U JPS61123698U JP1985007473U JP747385U JPS61123698U JP S61123698 U JPS61123698 U JP S61123698U JP 1985007473 U JP1985007473 U JP 1985007473U JP 747385 U JP747385 U JP 747385U JP S61123698 U JPS61123698 U JP S61123698U
- Authority
- JP
- Japan
- Prior art keywords
- output
- current
- inverter
- value
- detects
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Control Of Ac Motors In General (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図は第１図のレギユレータの一例を示すブロツ
ク図、第３図は第２図の動作を説明するための検
出信号の波形図を示し、１ａ，ｂは正常時の検出
電流波形図、２ａ，ｂ，ｃはトランジスコＱ１オ
ープン故障時の検出電流波形図である。第４図は
従来のエレベータの駆動制御装置の一例を示す構
成図、第５図は第４図のレギユレータの一例を示
すブロツク図である。
１……三相交流電源、３……順変換器、５，２
１……逆変換器（インバータ）、６……巻上電動
機、１０……かご、１１……パターン発生装置、
１２……タコジエネレータ、１３Ａ，１３Ｂ……
電流検出器、１４……レギユレータ、１５……位
相補償回路、１６Ｕ，１６Ｖ，１６Ｗ……ＰＷＭ
比較回路、１７Ｕ，１７Ｖ，１７Ｗ……ベースド
ライブ回路南２３，２５……加算回路、２４Ｕ，
２４Ｖ，２４Ｗ……整流回路、２６……判定回路
、２７……作動禁止回路。なお、図中、同一符号
は同一又は相当部分を示す。
FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a block diagram showing an example of the regulator shown in FIG. 1, and FIG. 3 is a waveform diagram of a detection signal to explain the operation of FIG. 2. 1a, b are detection current waveform diagrams during normal operation, and 2a, b, and c are detection current waveform diagrams during open failure of transistor Q1 . FIG. 4 is a block diagram showing an example of a conventional elevator drive control device, and FIG. 5 is a block diagram showing an example of the regulator shown in FIG. 1... Three-phase AC power supply, 3... Forward converter, 5, 2
1... Reverse converter (inverter), 6... Hoisting motor, 10... Car, 11... Pattern generator,
12...Tachometer generator, 13A, 13B...
Current detector, 14...Regulator, 15...Phase compensation circuit, 16U, 16V, 16W...PWM
Comparison circuit, 17U, 17V, 17W... Base drive circuit south 23, 25... Addition circuit, 24U,
24V, 24W... Rectifier circuit, 26... Judgment circuit, 27... Operation prohibition circuit. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
する順変換器と、該順変換器の直流出力を交流出
力に変換する逆変換器と、該逆変換器の出力電流
を検出する電流検出器の検出電流値と指令電流値
とに基づいて前記逆変換器を制御する逆変換器制
御装置とを備え、前記逆変換器の交流出力で巻上
電動機を駆動するようにしたエレベータにおいて
、前記電流検出器の検出電流値が予め定めた設定
値を越えたか否かを判定する判定手段と、該判定
手段が検出電流値が予め定められた設定値以下と
判定した時に前記逆変換器の作動を禁止手段とを
設けてなることを特徴とするエレベータの安全装
置。 (2) 電流の検出手段が、逆変換器の三相交流出
力の内の二相の出力電流を検出する各電流検出器
の検出電流値を加算することにより第３の相電流
を検出する手段及び三相の各電流を整流する整流
手段から成る実用新案登録請求の範囲第１項記載
のエレベ―タの安全装置。 (3) 判定手段の整流回路の出力電流値の加算値
が予め定められた設定値を越えたか否かを予め定
められた設定値を越えたか否かを判定するように
なつている実用新案登録請求の範囲第１項記載の
エレベータの安全装置。[Claims for Utility Model Registration] (1) A forward converter that converts AC output from an AC power source into DC output, an inverse converter that converts the DC output of the forward converter into AC output, and the inverse converter. and an inverter control device that controls the inverter based on a command current value and a detected current value of a current detector that detects an output current of the inverter, and drives a hoisting motor with the AC output of the inverter. In the elevator, the determining means determines whether the detected current value of the current detector exceeds a predetermined set value, and the determining means determines that the detected current value is equal to or less than the predetermined set value. A safety device for an elevator, comprising means for inhibiting operation of the inverter when the inverter is activated. (2) The current detection means detects the third phase current by adding the detected current values of each current detector that detects the output current of two phases of the three-phase AC output of the inverter. and a rectifying means for rectifying each three-phase current. (3) Utility model registration in which it is determined whether the sum of the output current values of the rectifier circuit as the determining means exceeds a predetermined set value. An elevator safety device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985007473U JPH0343840Y2 (en) | 1985-01-23 | 1985-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985007473U JPH0343840Y2 (en) | 1985-01-23 | 1985-01-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61123698U true JPS61123698U (en) | 1986-08-04 |
| JPH0343840Y2 JPH0343840Y2 (en) | 1991-09-13 |
Family
ID=30485859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985007473U Expired JPH0343840Y2 (en) | 1985-01-23 | 1985-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343840Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010068689A (en) * | 2008-09-12 | 2010-03-25 | Toyota Motor Corp | Motor controller |
-
1985
- 1985-01-23 JP JP1985007473U patent/JPH0343840Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010068689A (en) * | 2008-09-12 | 2010-03-25 | Toyota Motor Corp | Motor controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0343840Y2 (en) | 1991-09-13 |
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