GB1446474A - Starting and stopping of a motor controlled by electrical pulses - Google Patents

Starting and stopping of a motor controlled by electrical pulses

Info

Publication number
GB1446474A
GB1446474A GB4186273A GB4186273A GB1446474A GB 1446474 A GB1446474 A GB 1446474A GB 4186273 A GB4186273 A GB 4186273A GB 4186273 A GB4186273 A GB 4186273A GB 1446474 A GB1446474 A GB 1446474A
Authority
GB
United Kingdom
Prior art keywords
frequency
pulses
counter
response
count
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.)
Expired
Application number
GB4186273A
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.)
Fujitsu Ltd
Fanuc Corp
Original Assignee
Fujitsu Ltd
Fujitsu Fanuc 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
Priority claimed from JP8883372A external-priority patent/JPS5419563B2/ja
Priority claimed from JP47092539A external-priority patent/JPS5245878B2/ja
Priority claimed from JP10507972A external-priority patent/JPS5419564B2/ja
Priority claimed from JP10507872A external-priority patent/JPS4962912A/ja
Application filed by Fujitsu Ltd, Fujitsu Fanuc Ltd filed Critical Fujitsu Ltd
Publication of GB1446474A publication Critical patent/GB1446474A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/43—Speed, acceleration, deceleration control ADC
    • G05B2219/43006—Acceleration, deceleration control

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

1446474 Automatic frequency control FUJITSU Ltd and FUJITSU FANUC Ltd 5 Sept 1973 [5 Sept 1972 13 Sept 1972 20 Oct 1972 (2)] 41862/73 Heading H3A [Also in Divisions G3 and H2] Apparatus for providing driving pulses PO to a stepping motor is arranged that under equilibrium conditions the frequency of the output pulses PO equals that of input pulses Pi and that the response of the frequency of the output in response to a stepped change in the frequency of pulses Pi may be linear, exponential or both, the response time of the motor being thereby controlled. The embodiment shown comprises a first up/down counter 1, the input pulses Pi being applied to an incrementing input thereof, a comparator 2 for comparing the count at 1 with that at a second up/down counter 3, and "UP" or "DWN" signal being provided depending upon whether the count at 1 is greater than that at 3 or otherwise respectively. The signal from comparator 2 causes pulses from an external source having a frequency F1 to be counted up or down at 3 by enabling one of two AND gates 5, 6. The numerical output from counter 3 is multiplied at 4 by a frequency F2 from a further external source and a frequency PO is provided to the motor and these pulses are also fed back to the decrementing input of counter 1. A full mathematical treatment is given in the Specification and it is shown that the shape of the response curve of the frequency of pulses PO in response to step changes in the train Pi is dependent on the relative values of F1 and the frequency of pulse Pi. The multiplier 4 may be replaced by a D/A converter (7), Fig. 9 (not shown), controlling a voltage controlled oscillator (8), or the counter 3 may be connected to an adder (21), Fig. 10 (not shown), whereby at each pulse in a train of frequency F2 the count at 3is added to that in aregister (22) and overflow pulses are produced by this register. In a modification, Fig. 12 (not shown), the counter 1 is connected to an adder, register arrangement (31), (32) of the type described above to give an output frequency proportional to F1 times the count at 1. This frequency is compared with that of the pulses PO at (35) to provide the "UP" and "DWN" signals to the gates 5, 6 controlling counter 3.
GB4186273A 1972-09-05 1973-09-05 Starting and stopping of a motor controlled by electrical pulses Expired GB1446474A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP8883372A JPS5419563B2 (en) 1972-09-05 1972-09-05
JP47092539A JPS5245878B2 (en) 1972-09-13 1972-09-13
JP10507972A JPS5419564B2 (en) 1972-10-20 1972-10-20
JP10507872A JPS4962912A (en) 1972-10-20 1972-10-20

Publications (1)

Publication Number Publication Date
GB1446474A true GB1446474A (en) 1976-08-18

Family

ID=27467556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4186273A Expired GB1446474A (en) 1972-09-05 1973-09-05 Starting and stopping of a motor controlled by electrical pulses

Country Status (5)

Country Link
CA (1) CA993041A (en)
CH (1) CH595717A5 (en)
DE (1) DE2342224C3 (en)
FR (1) FR2198301B1 (en)
GB (1) GB1446474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120807A1 (en) * 2010-03-31 2011-10-06 Robert Bosch Gmbh Circuit arrangement and method for dividing impulsions in a time interval

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154009A (en) * 1982-03-08 1983-09-13 Fanuc Ltd Acceleration and deceleration controlling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120807A1 (en) * 2010-03-31 2011-10-06 Robert Bosch Gmbh Circuit arrangement and method for dividing impulsions in a time interval
US9000818B2 (en) 2010-03-31 2015-04-07 Robert Bosch Gmbh Circuit configuration and method for distributing pulses within a time interval

Also Published As

Publication number Publication date
DE2342224A1 (en) 1974-03-28
DE2342224C3 (en) 1978-06-15
DE2342224B2 (en) 1977-10-27
CA993041A (en) 1976-07-13
CH595717A5 (en) 1978-02-28
FR2198301B1 (en) 1978-03-10
FR2198301A1 (en) 1974-03-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee