JPS61116094A - Detecting device for abnormality in rotating speed of fan - Google Patents

Detecting device for abnormality in rotating speed of fan

Info

Publication number
JPS61116094A
JPS61116094A JP23676484A JP23676484A JPS61116094A JP S61116094 A JPS61116094 A JP S61116094A JP 23676484 A JP23676484 A JP 23676484A JP 23676484 A JP23676484 A JP 23676484A JP S61116094 A JPS61116094 A JP S61116094A
Authority
JP
Japan
Prior art keywords
fan
identification code
abnormality
rotating speed
sensor
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
JP23676484A
Other languages
Japanese (ja)
Inventor
Ikuo Kimura
Takeshi Yoshioka
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 JP23676484A priority Critical patent/JPS61116094A/en
Publication of JPS61116094A publication Critical patent/JPS61116094A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To identify abnormality in rotary motion of each of fans individually, by generating an abnormality detecting signal on the occasion of abnormality, that is, when the rotating speed of the fan becomes lower than the preset value, and sending out an identification code different for each fan.
CONSTITUTION: Each fan is equipped with a diode 13 for preventing reverse-flow of identification code signal current, identification code switches 14 for generating an identification code different for each fan, identification code terminals 15, an interlock switch 16 which operates when the rotating speed of this fan becomes lower, and a fan sensor 8'. In this system, the fan on which the fan sensor acts, can be identified through signal wires which are less in number than those used in other system in which signal wires are individually set from a fan sensor to an abnormality detecting unit.
COPYRIGHT: (C)1986,JPO&Japio
JP23676484A 1984-11-12 1984-11-12 Detecting device for abnormality in rotating speed of fan Pending JPS61116094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23676484A JPS61116094A (en) 1984-11-12 1984-11-12 Detecting device for abnormality in rotating speed of fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23676484A JPS61116094A (en) 1984-11-12 1984-11-12 Detecting device for abnormality in rotating speed of fan

Publications (1)

Publication Number Publication Date
JPS61116094A true JPS61116094A (en) 1986-06-03

Family

ID=17005443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23676484A Pending JPS61116094A (en) 1984-11-12 1984-11-12 Detecting device for abnormality in rotating speed of fan

Country Status (1)

Country Link
JP (1) JPS61116094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001227493A (en) * 2000-02-17 2001-08-24 Hitachi Kokusai Electric Inc Fan control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001227493A (en) * 2000-02-17 2001-08-24 Hitachi Kokusai Electric Inc Fan control circuit

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