JPS55155586A - Motor control for driving machine - Google Patents

Motor control for driving machine

Info

Publication number
JPS55155586A
JPS55155586A JP6237879A JP6237879A JPS55155586A JP S55155586 A JPS55155586 A JP S55155586A JP 6237879 A JP6237879 A JP 6237879A JP 6237879 A JP6237879 A JP 6237879A JP S55155586 A JPS55155586 A JP S55155586A
Authority
JP
Japan
Prior art keywords
transistor
signal
motor
load
collector
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
JP6237879A
Other languages
Japanese (ja)
Inventor
Takao Kunitomo
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP6237879A priority Critical patent/JPS55155586A/en
Publication of JPS55155586A publication Critical patent/JPS55155586A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To avoid an idling rotation by a method wherein a load variation signal of a motor is applied on a base of a transistor, and a collector thereof is connected with a signal output circuit and a signal is generated when a load of the motor is lessened. CONSTITUTION:A voltage difference is applied between a collector and an emitter of a transistor 1 respectively through resistors r1, r2 with a regulated voltage supply 2. A load variation signal generated through a combined method A, etc. which consists of a current transformer and a converter is applied on a variable resistor 3 by means of varying voltage. By connecting an output terminal with a base terminal of the transistor 1 through a rsistor r3, the transistor 1 is rendered nonconductive when the motor is put into a idling status, and reaches a condition wherein its current is lower than a no load status. When the transistor becomes nonconductive, an output signal circuit B generates a signal to stop the motor.
JP6237879A 1979-05-21 1979-05-21 Motor control for driving machine Pending JPS55155586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6237879A JPS55155586A (en) 1979-05-21 1979-05-21 Motor control for driving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6237879A JPS55155586A (en) 1979-05-21 1979-05-21 Motor control for driving machine

Publications (1)

Publication Number Publication Date
JPS55155586A true JPS55155586A (en) 1980-12-03

Family

ID=13198384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6237879A Pending JPS55155586A (en) 1979-05-21 1979-05-21 Motor control for driving machine

Country Status (1)

Country Link
JP (1) JPS55155586A (en)

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