JPS55156875A - Fault detecting circuit for motor speed controller - Google Patents

Fault detecting circuit for motor speed controller

Info

Publication number
JPS55156875A
JPS55156875A JP6466279A JP6466279A JPS55156875A JP S55156875 A JPS55156875 A JP S55156875A JP 6466279 A JP6466279 A JP 6466279A JP 6466279 A JP6466279 A JP 6466279A JP S55156875 A JPS55156875 A JP S55156875A
Authority
JP
Japan
Prior art keywords
motor
detecting circuit
motor speed
speed controller
fault detecting
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
JP6466279A
Other languages
Japanese (ja)
Other versions
JPS608755B2 (en
Inventor
Hideaki Ishibashi
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP54064662A priority Critical patent/JPS608755B2/en
Publication of JPS55156875A publication Critical patent/JPS55156875A/en
Publication of JPS608755B2 publication Critical patent/JPS608755B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To ensure the assured protection for overspeed by detecting that no turning of the motor continues more than the prescribed time although the current higher than the prescribed level is supplied.
CONSTITUTION: In case no signal is given from speed detecting generator 5 for some reason even after motor 4 started turning with the speed command given and current level comparator 10 operated, speed signal comparator 6 has no operation. And timer 8 carries out counting without being reset. Then relay 9 is driven to deliver the alarm signal. Thus motor 4 is protected against the overspeed.
COPYRIGHT: (C)1980,JPO&Japio
JP54064662A 1979-05-25 1979-05-25 Abnormality detection circuit of motor speed control device Expired JPS608755B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54064662A JPS608755B2 (en) 1979-05-25 1979-05-25 Abnormality detection circuit of motor speed control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54064662A JPS608755B2 (en) 1979-05-25 1979-05-25 Abnormality detection circuit of motor speed control device

Publications (2)

Publication Number Publication Date
JPS55156875A true JPS55156875A (en) 1980-12-06
JPS608755B2 JPS608755B2 (en) 1985-03-05

Family

ID=13264641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54064662A Expired JPS608755B2 (en) 1979-05-25 1979-05-25 Abnormality detection circuit of motor speed control device

Country Status (1)

Country Link
JP (1) JPS608755B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60128080U (en) * 1984-02-06 1985-08-28 株式会社　カクダイ製作所 faucet handle

Also Published As

Publication number Publication date
JPS608755B2 (en) 1985-03-05

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