JPS58121198U - AC motor speed control device - Google Patents
AC motor speed control deviceInfo
- Publication number
- JPS58121198U JPS58121198U JP1864582U JP1864582U JPS58121198U JP S58121198 U JPS58121198 U JP S58121198U JP 1864582 U JP1864582 U JP 1864582U JP 1864582 U JP1864582 U JP 1864582U JP S58121198 U JPS58121198 U JP S58121198U
- Authority
- JP
- Japan
- Prior art keywords
- control device
- speed control
- level
- slope signal
- motor speed
- 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
- Control Of Ac Motors In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、交流電動機の速度制御装置の従来例のブロッ
ク図、第２図は、木考案による交流電動機の速度制御装
置の実施例の要部回路図、第３図、は、上記実施例の動
作説明図である。
図において、２・・・コンバータ、５・・・インバータ
、７・・・速度指令器、８・・・傾斜信号発生器、９・
・・電圧コントローラ、１０・・・電圧センサ、２８・
・・リレー、３５・・・接点、Ａ・・・偏差増巾器、な
お、図中、同一符号は同−又は相当部分を示す。Fig. 1 is a block diagram of a conventional example of a speed control device for an AC motor, Fig. 2 is a circuit diagram of a main part of an embodiment of a speed control device for an AC motor devised by Wood, and Fig. 3 is a diagram of the above-mentioned embodiment. FIG. In the figure, 2... converter, 5... inverter, 7... speed command device, 8... slope signal generator, 9...
... Voltage controller, 10... Voltage sensor, 28.
...Relay, 35...Contact, A...Difference amplifier. In the drawings, the same reference numerals indicate the same or equivalent parts.
Claims (1)
る交流電動機の速度制御装置において、電圧コントラ−
により上記傾斜信号と比較される直流検出電圧と該傾斜
信号とのレベル差を検出してレベル保持指令を出力する
装置を設け、該レベ−ル保持指令の出力中上記傾斜信号
を発生する傾斜信号発生器の出力レベルを定レベルに拘
束することを特徴とする交流電動機の速度制御装置。In a speed control device for an AC motor that operates on a variable frequency power supply and gives a deceleration command as a ramp signal, a voltage controller is used.
A device is provided that detects a level difference between the DC detection voltage and the slope signal, which is compared with the slope signal, and outputs a level hold command, and a slope signal that generates the slope signal while the level hold command is being output. A speed control device for an AC motor, characterized by restricting the output level of a generator to a constant level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1864582U JPS58121198U (en) | 1982-02-10 | 1982-02-10 | AC motor speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1864582U JPS58121198U (en) | 1982-02-10 | 1982-02-10 | AC motor speed control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58121198U true JPS58121198U (en) | 1983-08-18 |
Family
ID=30030895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1864582U Pending JPS58121198U (en) | 1982-02-10 | 1982-02-10 | AC motor speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58121198U (en) |
-
1982
- 1982-02-10 JP JP1864582U patent/JPS58121198U/en active Pending
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