JPS57168311A - Controlling system of reciprocal motion - Google Patents

Controlling system of reciprocal motion

Info

Publication number
JPS57168311A
JPS57168311A JP5280081A JP5280081A JPS57168311A JP S57168311 A JPS57168311 A JP S57168311A JP 5280081 A JP5280081 A JP 5280081A JP 5280081 A JP5280081 A JP 5280081A JP S57168311 A JPS57168311 A JP S57168311A
Authority
JP
Japan
Prior art keywords
mobile part
reciprocal motion
counter
speed
reduced
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
JP5280081A
Other languages
Japanese (ja)
Inventor
Hiroshi Koide
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP5280081A priority Critical patent/JPS57168311A/en
Publication of JPS57168311A publication Critical patent/JPS57168311A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To realize a stable controlling system for reciprocal motion with a low cost, by varying the count number of a variable counter that counts the pulses produced by a reciprocal motion so that the count number corresponds to the mean value of the amplitude of the feedback signal. CONSTITUTION:The output of an FF24 is set at a low level to open a switch SWD at a moment when the mobile part of a reciprocal motion device starts a reciprocal motion. Thus the data of an address counter 17 is increased, and the large output voltage of a D/A converter 26 is supplied to an LPF28. As a result, the mobile part is quickly reset at its initial position via a switch SWB and a motor M. After this, the output of the counter 17 is decoded at 36 to know that the mobile part has entered the speed reducing region and to set the FF24. Then the switch SWD is closed to supply the feedback signal VCY to a subtractor circuit 27. The count value of a variable counter 30 is large at the moment when the speed reduction is started and then reduced as the speed reduces. The mean value of amplitude of the signal VCY is gradually reduced in proportion to the speed of the mobile part to reduce the frequency width of the signal VCY. As a result, the band of the LPF28 can be reduced to increase the stability when the mobile part comes close to the initial position.
JP5280081A 1981-04-08 1981-04-08 Controlling system of reciprocal motion Pending JPS57168311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5280081A JPS57168311A (en) 1981-04-08 1981-04-08 Controlling system of reciprocal motion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5280081A JPS57168311A (en) 1981-04-08 1981-04-08 Controlling system of reciprocal motion

Publications (1)

Publication Number Publication Date
JPS57168311A true JPS57168311A (en) 1982-10-16

Family

ID=12924911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5280081A Pending JPS57168311A (en) 1981-04-08 1981-04-08 Controlling system of reciprocal motion

Country Status (1)

Country Link
JP (1) JPS57168311A (en)

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