JPS5634162A - Control system for drum motor - Google Patents
Control system for drum motorInfo
- Publication number
- JPS5634162A JPS5634162A JP10862879A JP10862879A JPS5634162A JP S5634162 A JPS5634162 A JP S5634162A JP 10862879 A JP10862879 A JP 10862879A JP 10862879 A JP10862879 A JP 10862879A JP S5634162 A JPS5634162 A JP S5634162A
- Authority
- JP
- Japan
- Prior art keywords
- error voltage
- revolutions
- motor
- input
- drum motor
- 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 Electric Motors In General (AREA)
- Motor And Converter Starters (AREA)
Abstract
PURPOSE: To decrease the lock-in time up to the phase lock of drum motor at start, by discriminating the number of revolutions of durm with the numbr of revolution discriminator and controlling the drum motor with error voltage after stationary state of number of revolutions.
CONSTITUTION: The system is added with the signal selection switch 18 having the moving contact 18a, fixed contact 18b to which the phase error voltage 4 is input, and fixed contact 18c connected to ground, number of revolution discriminating circuit 20 outputting the output signal 21 with the input of the frequency errie voltage 6, and signal selection switch drive circuit 22. The number of revolution discriminator 20 discriminates whether the number of revolutions of the motor 12 is at stationary state or not, and until the number of revolutions reaches the steady state from start, the input of the phase error voltage 6 to the adder 5 is interrupted, and the motor is controlled only with the frequency error voltage obtained at the frequency discriminator 17, the phase error voltage 6 is input to the adder 5 after the number of revolutions reaches the steady state and the motor 12 is controlled with the error voltage. Thus, the lock-in time of the drum motor can be reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10862879A JPS5634162A (en) | 1979-08-28 | 1979-08-28 | Control system for drum motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10862879A JPS5634162A (en) | 1979-08-28 | 1979-08-28 | Control system for drum motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5634162A true JPS5634162A (en) | 1981-04-06 |
Family
ID=14489607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10862879A Pending JPS5634162A (en) | 1979-08-28 | 1979-08-28 | Control system for drum motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5634162A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60100216A (en) * | 1983-11-04 | 1985-06-04 | Sony Corp | Phase controller |
JPS614479A (en) * | 1984-06-19 | 1986-01-10 | Fuji Xerox Co Ltd | Speed control circuit of motor |
JPS63265578A (en) * | 1987-04-20 | 1988-11-02 | Hitachi Ltd | Speed control system for motor |
JPH0423259A (en) * | 1990-05-18 | 1992-01-27 | Hitachi Ltd | Cylinder revolving speed controller for magnetic recording and reproducing device |
-
1979
- 1979-08-28 JP JP10862879A patent/JPS5634162A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60100216A (en) * | 1983-11-04 | 1985-06-04 | Sony Corp | Phase controller |
JPS614479A (en) * | 1984-06-19 | 1986-01-10 | Fuji Xerox Co Ltd | Speed control circuit of motor |
JPS63265578A (en) * | 1987-04-20 | 1988-11-02 | Hitachi Ltd | Speed control system for motor |
JPH0834702B2 (en) * | 1987-04-20 | 1996-03-29 | 株式会社日立製作所 | Motor speed controller |
JPH0423259A (en) * | 1990-05-18 | 1992-01-27 | Hitachi Ltd | Cylinder revolving speed controller for magnetic recording and reproducing device |
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