JPH0345099U - - Google Patents
Info
- Publication number
- JPH0345099U JPH0345099U JP10595089U JP10595089U JPH0345099U JP H0345099 U JPH0345099 U JP H0345099U JP 10595089 U JP10595089 U JP 10595089U JP 10595089 U JP10595089 U JP 10595089U JP H0345099 U JPH0345099 U JP H0345099U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- frequency
- signal
- output frequency
- command signal
- 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 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Multiple Motors (AREA)
Description
第１図はこの考案の一実施例によるインバータ
装置を示す動作図、第２図はこの考案の一実施例
によるインバータ装置を示すインバータ装置が複
数台接続され、運転される状態を示すブロツク図
、第３図は従来のインバータ装置を示す動作図、
第４図は従来のインバータ装置を示すインバータ
装置が複数台接続され、運転される状態を示すブ
ロツク図である。
図において、１……電源、２……コンバータ回
路、３……コンデンサ、４……電流検出器、５…
…インバータ回路、６−１〜６−ｎ……交流電動
機、７−１〜７−ｎ……負荷、８……過電圧検出
信号、９……過電圧失速防止レベル信号、１０…
…過電圧失速検出回路、１１……過電圧失速防止
信号、１２……電流検出信号、１３……電流失速
防止レベル信号、１４……電流失速検出回路、１
５……電流失速防止信号、１６……加減速回路、
１７……周波数信号、１８……Ｖ／Ｆ制御回路、
１９……インバータ駆動信号、２０……周波数設
定器、２１……周波数指令信号、２２−１〜２２
−ｎ……インバータ装置、２３……周波数指令信
号端子、２４……周波数信号端子。なお、図中、
同一符号は同一、または相当部分を示す。
FIG. 1 is an operational diagram showing an inverter device according to an embodiment of this invention, and FIG. 2 is a block diagram showing a state in which a plurality of inverter devices are connected and operated. Figure 3 is an operational diagram showing a conventional inverter device;
FIG. 4 is a block diagram showing a state in which a plurality of conventional inverter devices are connected and operated. In the figure, 1...power supply, 2...converter circuit, 3...capacitor, 4...current detector, 5...
...Inverter circuit, 6-1 to 6-n... AC motor, 7-1 to 7-n... Load, 8... Overvoltage detection signal, 9... Overvoltage stall prevention level signal, 10...
...Overvoltage stall detection circuit, 11...Overvoltage stall prevention signal, 12...Current detection signal, 13...Current stall prevention level signal, 14...Current stall detection circuit, 1
5... Current stall prevention signal, 16... Acceleration/deceleration circuit,
17... Frequency signal, 18... V/F control circuit,
19... Inverter drive signal, 20... Frequency setter, 21... Frequency command signal, 22-1 to 22
-n...Inverter device, 23...Frequency command signal terminal, 24...Frequency signal terminal. In addition, in the figure,
The same reference numerals indicate the same or equivalent parts.
Claims (1)
上にならないように周波数を制御する機能を備え
たインバータ装置にて、複数台の電動機を各々複
数台のインバータ装置にて連動運転するシステム
において、第１のインバータの出力周波数に相当
する出力周波数信号を、第２のインバータの出力
周波数を決定する周波数指令信号とし、以降、順
次、第Ｋ−１のインバータの出力周波数信号を、
第Ｋのインバータの周波数指令信号とすることを
特徴とするインバータ装置。 In a system in which multiple electric motors are operated in conjunction with multiple inverter devices each with an inverter device that has the function of detecting current or voltage and controlling the frequency so that it does not exceed a predetermined level, the first The output frequency signal corresponding to the output frequency of the K-1 inverter is used as a frequency command signal that determines the output frequency of the second inverter, and thereafter, the output frequency signal of the K-1 inverter is sequentially set as
An inverter device characterized in that the frequency command signal is a frequency command signal for a K-th inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10595089U JPH0345099U (en) | 1989-09-08 | 1989-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10595089U JPH0345099U (en) | 1989-09-08 | 1989-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345099U true JPH0345099U (en) | 1991-04-25 |
Family
ID=31654701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10595089U Pending JPH0345099U (en) | 1989-09-08 | 1989-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345099U (en) |
-
1989
- 1989-09-08 JP JP10595089U patent/JPH0345099U/ja active Pending
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