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JPS54110416A - Failure detector for electric motor controller - Google Patents

Failure detector for electric motor controller

Info

Publication number
JPS54110416A
JPS54110416A JP1651378A JP1651378A JPS54110416A JP S54110416 A JPS54110416 A JP S54110416A JP 1651378 A JP1651378 A JP 1651378A JP 1651378 A JP1651378 A JP 1651378A JP S54110416 A JPS54110416 A JP S54110416A
Authority
JP
Japan
Prior art keywords
motor
armature
armature current
predetermined level
electric motor
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
JP1651378A
Other languages
Japanese (ja)
Inventor
Hiromi Inaba
Kiyoya Shima
Takeyoshi Ando
Toshiaki Kurosawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP1651378A priority Critical patent/JPS54110416A/en
Publication of JPS54110416A publication Critical patent/JPS54110416A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To send out a failure signal when the current level of the armature is lower than predetermined level by negative feed back of the signal in proportion to the rotating speed of the motor to an armature current controller through a blind sector circuit.
CONSTITUTION: A power is supplied to a motor 24 via a thyrister device 25 from a power source and the rotating speed of the motor is negative fed back to an armature current controller 26 via an absolute level bilnd sector circuit 4 from a speed generator 3. A current monitor 5 monitors the armature current to assure it is increased to predetermined level and sends out a failure signal when the armature current is lower than predetermined level for the remedy thereof.
COPYRIGHT: (C)1979,JPO&Japio
JP1651378A 1978-02-17 1978-02-17 Failure detector for electric motor controller Pending JPS54110416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1651378A JPS54110416A (en) 1978-02-17 1978-02-17 Failure detector for electric motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1651378A JPS54110416A (en) 1978-02-17 1978-02-17 Failure detector for electric motor controller

Publications (1)

Publication Number Publication Date
JPS54110416A true JPS54110416A (en) 1979-08-29

Family

ID=11918343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1651378A Pending JPS54110416A (en) 1978-02-17 1978-02-17 Failure detector for electric motor controller

Country Status (1)

Country Link
JP (1) JPS54110416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102445650A (en) * 2011-09-22 2012-05-09 重庆大学 Circuit fault diagnosis method based on blind signal separation algorithm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102445650A (en) * 2011-09-22 2012-05-09 重庆大学 Circuit fault diagnosis method based on blind signal separation algorithm

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