JPS6233698U - - Google Patents
Info
- Publication number
- JPS6233698U JPS6233698U JP12437185U JP12437185U JPS6233698U JP S6233698 U JPS6233698 U JP S6233698U JP 12437185 U JP12437185 U JP 12437185U JP 12437185 U JP12437185 U JP 12437185U JP S6233698 U JPS6233698 U JP S6233698U
- Authority
- JP
- Japan
- Prior art keywords
- commercial power
- electromagnetic contactor
- drive device
- motor
- electromagnetic
- 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
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Description
第１図は交流電動機の可変電圧可変周波数駆動
装置による運転から商用電源による運転に切換え
る際の本発明の運転切換装置に関わる単線結線図
を、第２図は前記運転切換装置の操作回路の結線
図を表わす。
１……交流電動機、３……可変電圧可変周波数
駆動装置、４，５，６……電磁接触器、７……操
作電源切換スイツチ、１１，１２，１４……電磁
接触器の電磁コイル、１３……オフ遅延タイマ。
Fig. 1 is a single-line wiring diagram related to the operation switching device of the present invention when switching an AC motor from operation using a variable voltage variable frequency drive device to operation using a commercial power supply, and Fig. 2 is a wiring diagram of the operating circuit of the operation switching device. represents a diagram. DESCRIPTION OF SYMBOLS 1...AC motor, 3...Variable voltage variable frequency drive device, 4, 5, 6...Magnetic contactor, 7...Operation power source changeover switch, 11, 12, 14...Magnetic coil of magnetic contactor, 13 ...off delay timer.
Claims (1)
に接続される回路と直接商用電源に接続される回
路とからなる並列回路を有し、通常可変電圧可変
波数駆動装置により運転される交流電動機を、必
要に応じて前記駆動装置による運転から前記商用
電源による運転に切換えるための運転切換装置に
おいて、操作電源の切換スイツチの切換えにより
前記可変電圧可変周波数駆動装置による運転回路
の電磁接触器の電磁コイルの励磁電流を遮断して
前記電磁接触器を開路した際に、前記電磁接触器
の電磁コイルの励磁遮断と同時に作動するオフ遅
延タイヤが所定の時限をカウンタトした後にはじ
めて前記商用電源による前記電動機の運転回路の
電磁接触器の電磁コイルが励磁され前記電磁接触
器が閉路する如くにしてなることを特徴とする交
流電動機の運転切換装置。 An AC motor that has a parallel circuit consisting of a circuit connected to the commercial power supply via a variable voltage variable frequency drive device and a circuit connected directly to the commercial power supply, and is normally operated by a variable voltage variable frequency drive device, is required. In the operation switching device for switching from operation by the drive device to operation by the commercial power source according to When the electric current is cut off and the electromagnetic contactor is opened, the operating circuit of the electric motor by the commercial power source is activated only after the off-delay tire, which operates simultaneously with the excitation cutoff of the electromagnetic coil of the electromagnetic contactor, has counted a predetermined time period. An operation switching device for an AC motor, characterized in that the electromagnetic coil of the electromagnetic contactor is excited so that the electromagnetic contactor is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12437185U JPS6233698U (en) | 1985-08-13 | 1985-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12437185U JPS6233698U (en) | 1985-08-13 | 1985-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6233698U true JPS6233698U (en) | 1987-02-27 |
Family
ID=31016321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12437185U Pending JPS6233698U (en) | 1985-08-13 | 1985-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6233698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005176533A (en) * | 2003-12-12 | 2005-06-30 | Hitachi Ltd | Switching device for induction motor drive power supply |
-
1985
- 1985-08-13 JP JP12437185U patent/JPS6233698U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005176533A (en) * | 2003-12-12 | 2005-06-30 | Hitachi Ltd | Switching device for induction motor drive power supply |
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