JPS61159893U - - Google Patents
Info
- Publication number
- JPS61159893U JPS61159893U JP4115685U JP4115685U JPS61159893U JP S61159893 U JPS61159893 U JP S61159893U JP 4115685 U JP4115685 U JP 4115685U JP 4115685 U JP4115685 U JP 4115685U JP S61159893 U JPS61159893 U JP S61159893U
- Authority
- JP
- Japan
- Prior art keywords
- regenerative power
- potential
- variable frequency
- elevator
- frequency device
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims 5
- 238000010521 absorption reaction Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Ac-Ac Conversion (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Control Of Ac Motors In General (AREA)
- Stopping Of Electric Motors (AREA)
Description
第１図はこの考案によるエレベータの制御装置
の一実施例を示す回路図、第２図は第１図に示す
電圧検出回路の一例を示す回路図、第３図は第１
図に示す可変電圧可変周波数装置に対する制御回
路、第４図、第５図はこの考案によるエレベータ
の制御装置の他の実施例を示す回路図、第６図、
第７図は従来のエレベータの制御装置を示す回路
図である。
２……三相全波整流ブリツジ、３……平滑コン
デンサ、４，５，３１……抵抗、６，７，３２…
…トランジスタ、８……可変電圧可変周波数装置
、９……三相誘導電動機、１１，３３……電圧検
出回路。なお、図中同一符号は同一または相当部
分を示す。
Fig. 1 is a circuit diagram showing one embodiment of the elevator control device according to this invention, Fig. 2 is a circuit diagram showing an example of the voltage detection circuit shown in Fig. 1, and Fig. 3 is a circuit diagram showing an example of the voltage detection circuit shown in Fig. 1.
The control circuit for the variable voltage variable frequency device shown in the figure, FIGS. 4 and 5 are circuit diagrams showing other embodiments of the elevator control device according to this invention, and FIG.
FIG. 7 is a circuit diagram showing a conventional elevator control device. 2... Three-phase full-wave rectifier bridge, 3... Smoothing capacitor, 4, 5, 31... Resistor, 6, 7, 32...
...Transistor, 8...Variable voltage variable frequency device, 9...Three-phase induction motor, 11, 33...Voltage detection circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
可変電圧可変周波数装置によつて制御するととも
に、三相誘導電動機の回生電力を前記可変電圧可
変周波数装置の直流側に於て抵抗とトランジスタ
の直列体からなる回生電力吸収系によつて吸収す
るエレベータの制御装置に於て、前記可変電圧可
変周波数装置の直流側に設けられる前記回生電力
吸収系を互いに独立した状態で複数組設けるとと
もに、各回生電力吸収系のトランジスタがすべて
オンとなつた時に電位が同一なる点の電位を判別
する電圧検出回路を設け、この電圧検出回路が上
記同電位が維持しなくなつたことを検出するとエ
レベータのかごを急停止させる制御を行うことを
特徴とするエレベータの制御装置。 A three-phase induction motor that drives an elevator car is controlled by a variable voltage variable frequency device, and the regenerative power of the three-phase induction motor is generated from a series body of a resistor and a transistor on the DC side of the variable voltage variable frequency device. In an elevator control device that absorbs regenerative power by a regenerative power absorption system, a plurality of sets of the regenerative power absorption systems provided on the DC side of the variable voltage variable frequency device are provided in a mutually independent state, and each regenerative power absorption system A voltage detection circuit is installed that determines the potential at the point where the potential is the same when all transistors in the system are turned on, and when this voltage detection circuit detects that the same potential is no longer maintained, the elevator car is suddenly stopped. A control device for an elevator, characterized in that it performs control to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115685U JPS61159893U (en) | 1985-03-22 | 1985-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115685U JPS61159893U (en) | 1985-03-22 | 1985-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61159893U true JPS61159893U (en) | 1986-10-03 |
Family
ID=30550715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4115685U Pending JPS61159893U (en) | 1985-03-22 | 1985-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61159893U (en) |
-
1985
- 1985-03-22 JP JP4115685U patent/JPS61159893U/ja active Pending
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