JPS54112467A - Driver for numerically controlled machine - Google Patents
Driver for numerically controlled machineInfo
- Publication number
- JPS54112467A JPS54112467A JP1842878A JP1842878A JPS54112467A JP S54112467 A JPS54112467 A JP S54112467A JP 1842878 A JP1842878 A JP 1842878A JP 1842878 A JP1842878 A JP 1842878A JP S54112467 A JPS54112467 A JP S54112467A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- signal
- speed
- current
- comparator circuit
- 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 Position Or Direction (AREA)
- Control Of Multiple Motors (AREA)
Abstract
PURPOSE: To protect a driving motor from abnormal heating, by providing a current limiter circuit which limits the current of the motor at the time of its slow run when the instantaneous value of the current is high.
CONSTITUTION: A servoamplifier circuit 11', which is connected to the controlled member driving motor 4 of a driver of a numerically controlled machine, is so formed to control the motor 4 to eliminate the deviation signal δ1 between the output signal 10 from a motor position detector 9 and a position command signal. A speed generator 17 is connected to the motor 4. The output signal from the generator is collated with the deviation signal δ1 to effect feedback control. For this feedback control, a speed comparator circuit 18 is provided. At the final stage of positioning or at the very low feed, the signal from the speed generator 17 is applied as one input to the comparator circuit 18 and the signal from a speed setting unit 19 is applied as another input to the comparator circuit 18 to limit the armature current of the motor if the real speed is lower than a set level.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1842878A JPS54112467A (en) | 1978-02-22 | 1978-02-22 | Driver for numerically controlled machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1842878A JPS54112467A (en) | 1978-02-22 | 1978-02-22 | Driver for numerically controlled machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54112467A true JPS54112467A (en) | 1979-09-03 |
Family
ID=11971366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1842878A Pending JPS54112467A (en) | 1978-02-22 | 1978-02-22 | Driver for numerically controlled machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54112467A (en) |
-
1978
- 1978-02-22 JP JP1842878A patent/JPS54112467A/en active Pending
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