JPS6295984A - Speed controller for motor - Google Patents

Speed controller for motor

Info

Publication number
JPS6295984A
JPS6295984A JP60234498A JP23449885A JPS6295984A JP S6295984 A JPS6295984 A JP S6295984A JP 60234498 A JP60234498 A JP 60234498A JP 23449885 A JP23449885 A JP 23449885A JP S6295984 A JPS6295984 A JP S6295984A
Authority
JP
Japan
Prior art keywords
speed
signal
period
detecting means
inverse
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
JP60234498A
Other languages
Japanese (ja)
Inventor
Shinji Seki
Shunsuke Matsubara
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
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 Fanuc Corp filed Critical Fanuc Corp
Priority to JP60234498A priority Critical patent/JPS6295984A/en
Publication of JPS6295984A publication Critical patent/JPS6295984A/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
    • H02P23/16—Controlling the angular speed of one shaft

Abstract

PURPOSE:To improve speed-control characteristics at low speed by using the inverse number of a pulse period detected by a rotational-speed detecting means as a speed signal. CONSTITUTION:A pulse encoder 2 generates pulses in number proportional to the angular velocity of rotation. A period detecting means 5 counts the number of clock pulses CL generated at one pulse interval of the pulse encoder 2, and D/A converts the number of CL and generates a voltage signal E representing the inverse number (a period) of the rotational speed of the pulse encoder 2. A period inverse detecting means 6 changes a period detected by the period detecting means 5 into an inverse number, and outputs it as a speed signal B. A speed control circuit 4 amplifies a deviation signal C between a speed command signal A and the speed signal B, and outputs a motor control signal D.
JP60234498A 1985-10-22 1985-10-22 Speed controller for motor Pending JPS6295984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60234498A JPS6295984A (en) 1985-10-22 1985-10-22 Speed controller for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60234498A JPS6295984A (en) 1985-10-22 1985-10-22 Speed controller for motor

Publications (1)

Publication Number Publication Date
JPS6295984A true JPS6295984A (en) 1987-05-02

Family

ID=16971967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60234498A Pending JPS6295984A (en) 1985-10-22 1985-10-22 Speed controller for motor

Country Status (1)

Country Link
JP (1) JPS6295984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002243A (en) * 2001-06-20 2003-01-08 Yanmar Agricult Equip Co Ltd Farm working machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035976A (en) * 1983-08-04 1985-02-23 Hitachi Ltd Speed detecting method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035976A (en) * 1983-08-04 1985-02-23 Hitachi Ltd Speed detecting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002243A (en) * 2001-06-20 2003-01-08 Yanmar Agricult Equip Co Ltd Farm working machine

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