JPS54112467A - Driver for numerically controlled machine - Google Patents

Driver for numerically controlled machine

Info

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
Application number
JP1842878A
Other languages
Japanese (ja)
Inventor
Sakae Yanagisawa
Masayuki Miyagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP1842878A priority Critical patent/JPS54112467A/en
Publication of JPS54112467A publication Critical patent/JPS54112467A/en
Pending legal-status Critical Current

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
JP1842878A 1978-02-22 1978-02-22 Driver for numerically controlled machine Pending JPS54112467A (en)

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)

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