JPS5553195A - Ac motor speed control device - Google Patents
Ac motor speed control deviceInfo
- Publication number
- JPS5553195A JPS5553195A JP12535978A JP12535978A JPS5553195A JP S5553195 A JPS5553195 A JP S5553195A JP 12535978 A JP12535978 A JP 12535978A JP 12535978 A JP12535978 A JP 12535978A JP S5553195 A JPS5553195 A JP S5553195A
- Authority
- JP
- Japan
- Prior art keywords
- braking
- control device
- current
- speed control
- 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)
- Stopping Of Electric Motors (AREA)
Abstract
PURPOSE: To control a deceleration rate at a proper value by providing the function of variably controlling the dc brake current at a specified value when dc braking is applied to an ac motor and making the dc braking torque variable.
CONSTITUTION: A current limiter 20 used at the time of dc braking is provided in a current-type inverter. When dc braking is applied to an ac motor 5, the dc braking torque is controlled at a specified value, and a required deceleration rate can be obtained since the limiting value that is set in a current limiter 10 is variable. Furthermore, flexible braking torque characteristics can be obtained by suitable pre-programmed braking instructions.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12535978A JPS5553195A (en) | 1978-10-12 | 1978-10-12 | Ac motor speed control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12535978A JPS5553195A (en) | 1978-10-12 | 1978-10-12 | Ac motor speed control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5553195A true JPS5553195A (en) | 1980-04-18 |
Family
ID=14908175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12535978A Pending JPS5553195A (en) | 1978-10-12 | 1978-10-12 | Ac motor speed control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5553195A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713985A (en) * | 1980-06-26 | 1982-01-25 | Shinko Electric Co Ltd | Braking circuit for induction motor |
JPS60162491A (en) * | 1984-02-03 | 1985-08-24 | Matsushita Electric Ind Co Ltd | Braking device of motor |
US6741050B2 (en) * | 2001-07-16 | 2004-05-25 | Hilti Aktiengesellschaft | Method of controlling and switching for braking an electronically commutated electrical motor |
-
1978
- 1978-10-12 JP JP12535978A patent/JPS5553195A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713985A (en) * | 1980-06-26 | 1982-01-25 | Shinko Electric Co Ltd | Braking circuit for induction motor |
JPH039716B2 (en) * | 1980-06-26 | 1991-02-12 | Shinko Electric Co Ltd | |
JPS60162491A (en) * | 1984-02-03 | 1985-08-24 | Matsushita Electric Ind Co Ltd | Braking device of motor |
US6741050B2 (en) * | 2001-07-16 | 2004-05-25 | Hilti Aktiengesellschaft | Method of controlling and switching for braking an electronically commutated electrical motor |
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