JPS5619390A - Dc motor control system - Google Patents

Dc motor control system

Info

Publication number
JPS5619390A
JPS5619390A JP9436179A JP9436179A JPS5619390A JP S5619390 A JPS5619390 A JP S5619390A JP 9436179 A JP9436179 A JP 9436179A JP 9436179 A JP9436179 A JP 9436179A JP S5619390 A JPS5619390 A JP S5619390A
Authority
JP
Japan
Prior art keywords
speed
motor
low
specified
control signal
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
JP9436179A
Other languages
Japanese (ja)
Inventor
Nobuyuki Hayashida
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
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9436179A priority Critical patent/JPS5619390A/en
Publication of JPS5619390A publication Critical patent/JPS5619390A/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
    • H02P23/0077—Characterised by the use of a particular software algorithm

Landscapes

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

Abstract

PURPOSE:To rapidly switch from high to low speed for a DC motor by starting a constant speed control at low speed control at low speed of the motor when the real speed for regenerative braking the motor is lowered than the low speed specified speed in case the motor is switched from high to low speed. CONSTITUTION:When a real speed of a DC motor is faster than a specified speed, a speed control signal VFS becomes a high level, while when the real speed is lower than the specified speed, the speed control signal VFS becomes a low level. A motor control circuit 13 controls the motor 1 in response to the speed control signal VFS. When the motor 1 is switched from high to low speed, the specified speed is altered and a run signal STA is turned off. Thus, the motor 1 is regneratively braked to abruptly decelerate the speed of the motor 1. Thereafter, when the fall of the speed control signal VFS is detected, the run signal STC is turned on to control constant speed of the motor 1.
JP9436179A 1979-07-25 1979-07-25 Dc motor control system Pending JPS5619390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9436179A JPS5619390A (en) 1979-07-25 1979-07-25 Dc motor control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9436179A JPS5619390A (en) 1979-07-25 1979-07-25 Dc motor control system

Publications (1)

Publication Number Publication Date
JPS5619390A true JPS5619390A (en) 1981-02-24

Family

ID=14108154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9436179A Pending JPS5619390A (en) 1979-07-25 1979-07-25 Dc motor control system

Country Status (1)

Country Link
JP (1) JPS5619390A (en)

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