JPS573595A - Digital speed control system - Google Patents

Digital speed control system

Info

Publication number
JPS573595A
JPS573595A JP7720580A JP7720580A JPS573595A JP S573595 A JPS573595 A JP S573595A JP 7720580 A JP7720580 A JP 7720580A JP 7720580 A JP7720580 A JP 7720580A JP S573595 A JPS573595 A JP S573595A
Authority
JP
Japan
Prior art keywords
speed
respective sections
signal
pulse
computer
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
JP7720580A
Other languages
Japanese (ja)
Inventor
Terukichi Hamabuchi
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP7720580A priority Critical patent/JPS573595A/en
Publication of JPS573595A publication Critical patent/JPS573595A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/22—Controlling the speed digitally using a reference oscillator, a speed proportional pulse rate feedback and a digital comparator

Abstract

PURPOSE:To obtain an apparatus which can maintain the speed differences between respective sections with high accuracy and has been improved in the extensibility, wiring quantity and insulation aspect of the system, by a method wherein the digital speed instruction calculating part is handled by the software in a computer system, and the like. CONSTITUTION:In order to drive electric motors 112 or the like in respective sections SEC1-SECn while maintaining given speed differences, digital set values are inputted to a computer 6 from a line speed setting device 4' and a setting device 5 for the speed differences between the respective sections, and a given operation is carried out in the computer 6 to generate pulse trains having frequencies corresponding to the numbers of revolutions of the respective electric motors. Said pulse train is sent out to the speed calculating part of each electric motor as a speed instruction signal, and said signal and the speed feedback signal from a pulse oscillator 113 or the like provided for each electric motor are converted into analog quantities before a speed calculation is performed. Then, to said speed calculation output point 125 or the like, the output of a reversible counter 122 or the like to add the pulse difference between said speed instruction signal and said speed feedback signal is added.
JP7720580A 1980-06-10 1980-06-10 Digital speed control system Pending JPS573595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7720580A JPS573595A (en) 1980-06-10 1980-06-10 Digital speed control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7720580A JPS573595A (en) 1980-06-10 1980-06-10 Digital speed control system

Publications (1)

Publication Number Publication Date
JPS573595A true JPS573595A (en) 1982-01-09

Family

ID=13627318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7720580A Pending JPS573595A (en) 1980-06-10 1980-06-10 Digital speed control system

Country Status (1)

Country Link
JP (1) JPS573595A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559206A (en) * 1978-07-03 1980-01-23 Toshiba Corp Digital speed control unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559206A (en) * 1978-07-03 1980-01-23 Toshiba Corp Digital speed control unit

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