JPS57189586A - Brake unit for motor - Google Patents

Brake unit for motor

Info

Publication number
JPS57189586A
JPS57189586A JP7450581A JP7450581A JPS57189586A JP S57189586 A JPS57189586 A JP S57189586A JP 7450581 A JP7450581 A JP 7450581A JP 7450581 A JP7450581 A JP 7450581A JP S57189586 A JPS57189586 A JP S57189586A
Authority
JP
Japan
Prior art keywords
motor
point
inverter
frequency
switch
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.)
Granted
Application number
JP7450581A
Other languages
Japanese (ja)
Other versions
JPS646636B2 (en
Inventor
Takeshi Tawara
Masayuki Katsuto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7450581A priority Critical patent/JPS57189586A/en
Publication of JPS57189586A publication Critical patent/JPS57189586A/en
Publication of JPS646636B2 publication Critical patent/JPS646636B2/ja
Granted 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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To obtain an inexpensive brake unit with a simple structure by regeneratively braking a motor until the frequency generated by an inverter becomes minimum, operating a switch unit when the frequency becomes lower than the minimum, and releasing the motor from the inverter, thereby dynamically braking the motor. CONSTITUTION:When a start switch 5 is opened to stop a motor 3, the output frequency of an inverter 2 is lowered rapidly to the prescribed frequency, and the motor 3 is decelerated by regenerative braking proportionally to the output frequency of the inverter 2 from a point c to a point d. The output of the inverter 2 becomes minimum frequency at the point d, and becomes zero at the point lower than the point d. At this time, a brake unit 8 actuates to open a switch 9 with a stopping signal generated from the inverter 2, and a switch 10 is closed. Accordingly, the induced power of the motor 3 is consumed in the coil by the generative braking, and the motor 3 is decelerated rapidly from the point d to the point f, and is stopped.
JP7450581A 1981-05-18 1981-05-18 Brake unit for motor Granted JPS57189586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7450581A JPS57189586A (en) 1981-05-18 1981-05-18 Brake unit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7450581A JPS57189586A (en) 1981-05-18 1981-05-18 Brake unit for motor

Publications (2)

Publication Number Publication Date
JPS57189586A true JPS57189586A (en) 1982-11-20
JPS646636B2 JPS646636B2 (en) 1989-02-03

Family

ID=13549238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7450581A Granted JPS57189586A (en) 1981-05-18 1981-05-18 Brake unit for motor

Country Status (1)

Country Link
JP (1) JPS57189586A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989586A (en) * 1982-11-11 1984-05-23 Toray Eng Co Ltd Roller unit
JPS6333394U (en) * 1986-08-13 1988-03-03
JPH0412686A (en) * 1990-04-27 1992-01-17 Juki Corp Ac motor drive circuit
CN103595303A (en) * 2012-08-15 2014-02-19 黑龙江庆东油田节能设备股份有限公司 Automatic converting circuit of intelligent power-saving cabinet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03274892A (en) * 1990-03-23 1991-12-05 Sharp Corp Electroacoustic transducer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989586A (en) * 1982-11-11 1984-05-23 Toray Eng Co Ltd Roller unit
JPS6333394U (en) * 1986-08-13 1988-03-03
JPH0412686A (en) * 1990-04-27 1992-01-17 Juki Corp Ac motor drive circuit
CN103595303A (en) * 2012-08-15 2014-02-19 黑龙江庆东油田节能设备股份有限公司 Automatic converting circuit of intelligent power-saving cabinet

Also Published As

Publication number Publication date
JPS646636B2 (en) 1989-02-03

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