JPS5250519A - Frequency convertor - Google Patents
Frequency convertorInfo
- Publication number
- JPS5250519A JPS5250519A JP50125873A JP12587375A JPS5250519A JP S5250519 A JPS5250519 A JP S5250519A JP 50125873 A JP50125873 A JP 50125873A JP 12587375 A JP12587375 A JP 12587375A JP S5250519 A JPS5250519 A JP S5250519A
- Authority
- JP
- Japan
- Prior art keywords
- discrimination
- frequency convertor
- suppress
- reverse
- feed
- 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
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To suppress the output overcurrent, by a method that discrimination be made whether to be under speed up/down or steady running and further whether to be normal rotation or reverse one understood from the load operating condition, and on the basis of this discrimination the current detect signal is feed-back controlled.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50125873A JPS5250519A (en) | 1975-10-21 | 1975-10-21 | Frequency convertor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50125873A JPS5250519A (en) | 1975-10-21 | 1975-10-21 | Frequency convertor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5250519A true JPS5250519A (en) | 1977-04-22 |
JPS5625878B2 JPS5625878B2 (en) | 1981-06-15 |
Family
ID=14921028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50125873A Granted JPS5250519A (en) | 1975-10-21 | 1975-10-21 | Frequency convertor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5250519A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56129595A (en) * | 1980-03-14 | 1981-10-09 | Toshiba Corp | Operation controlling device for motor |
JPS57135699A (en) * | 1981-02-17 | 1982-08-21 | Toshiba Corp | Control device for inverter |
JPS57153573A (en) * | 1981-03-18 | 1982-09-22 | Mitsubishi Electric Corp | Controlling circuit for inverter |
JPS58108984A (en) * | 1981-12-18 | 1983-06-29 | インステイテユト・セラミツク・エス・エイ | Method and device for controlling brushless ac motor |
JPS60153699U (en) * | 1984-03-23 | 1985-10-14 | 株式会社明電舎 | AC motor control device for material conveyance |
JPS61498U (en) * | 1985-05-30 | 1986-01-06 | 三菱電機株式会社 | Induction motor control device |
JPS6113599U (en) * | 1984-06-26 | 1986-01-27 | 株式会社東芝 | Air conditioner operating frequency control device |
-
1975
- 1975-10-21 JP JP50125873A patent/JPS5250519A/en active Granted
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56129595A (en) * | 1980-03-14 | 1981-10-09 | Toshiba Corp | Operation controlling device for motor |
JPS6350960B2 (en) * | 1980-03-14 | 1988-10-12 | Tokyo Shibaura Electric Co | |
JPS57135699A (en) * | 1981-02-17 | 1982-08-21 | Toshiba Corp | Control device for inverter |
JPS57153573A (en) * | 1981-03-18 | 1982-09-22 | Mitsubishi Electric Corp | Controlling circuit for inverter |
JPH026314B2 (en) * | 1981-03-18 | 1990-02-08 | Mitsubishi Electric Corp | |
JPS58108984A (en) * | 1981-12-18 | 1983-06-29 | インステイテユト・セラミツク・エス・エイ | Method and device for controlling brushless ac motor |
JPS60153699U (en) * | 1984-03-23 | 1985-10-14 | 株式会社明電舎 | AC motor control device for material conveyance |
JPS6113599U (en) * | 1984-06-26 | 1986-01-27 | 株式会社東芝 | Air conditioner operating frequency control device |
JPS61498U (en) * | 1985-05-30 | 1986-01-06 | 三菱電機株式会社 | Induction motor control device |
Also Published As
Publication number | Publication date |
---|---|
JPS5625878B2 (en) | 1981-06-15 |
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