JPH01273917A - Safety device for control device - Google Patents

Safety device for control device

Info

Publication number
JPH01273917A
JPH01273917A JP63101579A JP10157988A JPH01273917A JP H01273917 A JPH01273917 A JP H01273917A JP 63101579 A JP63101579 A JP 63101579A JP 10157988 A JP10157988 A JP 10157988A JP H01273917 A JPH01273917 A JP H01273917A
Authority
JP
Japan
Prior art keywords
circuit
flame
control
safety
abnormality
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
JP63101579A
Other languages
Japanese (ja)
Other versions
JPH079601B2 (en
Inventor
Shigeo Naruse
Original Assignee
Rinnai 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 Rinnai Corp filed Critical Rinnai Corp
Priority to JP63101579A priority Critical patent/JPH079601B2/en
Publication of JPH01273917A publication Critical patent/JPH01273917A/en
Publication of JPH079601B2 publication Critical patent/JPH079601B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices or methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/24Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/24Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00Signal processing; Details thereof
    • F23N2223/08Microprocessor; Microcomputer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00Fail safe
    • F23N2231/10Fail safe for component failures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/02Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements

Abstract

PURPOSE:To stop abnormal operation of a device, by a method wherein when abnormality of a device is detected by an abnormality detecting means, the feed of a power to a control means is stopped. CONSTITUTION:A device is formed with a burner, a fuel pipe, a water pipe, and a control device 40. The control device 40 comprises a microcomputer 42, a safety circuit 43 to ensure safety, a solenoid valve energizing circuit 44, and a power source part 45 to feed a power to all of them. A flame detecting circuit 58 is a circuit adapted to provide a flame detecting signal through detection of flame by means of a flame rod 15 serving as an abnormality detecting means, and a flame detecting signal of an H-level is respectively outputted to the microcomputer 42 and the safety circuit 43. When abnormality on a flame detecting signal from the flame detecting circuit 58 is detected, the safety circuit 43 stops the feed of a power to the microcomputer 42 and the solenoid valve energizing relay circuit 44.
JP63101579A 1988-04-25 1988-04-25 Control device safety device Expired - Fee Related JPH079601B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63101579A JPH079601B2 (en) 1988-04-25 1988-04-25 Control device safety device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63101579A JPH079601B2 (en) 1988-04-25 1988-04-25 Control device safety device
KR1019890003898A KR930004531B1 (en) 1988-04-25 1989-03-28 Safety device for controller

Publications (2)

Publication Number Publication Date
JPH01273917A true JPH01273917A (en) 1989-11-01
JPH079601B2 JPH079601B2 (en) 1995-02-01

Family

ID=14304303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63101579A Expired - Fee Related JPH079601B2 (en) 1988-04-25 1988-04-25 Control device safety device

Country Status (2)

Country Link
JP (1) JPH079601B2 (en)
KR (1) KR930004531B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04103912A (en) * 1990-08-23 1992-04-06 Rinnai Corp Combustion controller
JP2005003755A (en) * 2003-06-10 2005-01-06 Fuji Photo Film Co Ltd Cassette for detecting image information

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099930A (en) * 1983-11-07 1985-06-03 Matsushita Electric Ind Co Ltd Combustion control device
JPS61201342A (en) * 1985-03-04 1986-09-06 Japanese National Railways<Jnr> Abnormality detector for microcomputer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099930A (en) * 1983-11-07 1985-06-03 Matsushita Electric Ind Co Ltd Combustion control device
JPS61201342A (en) * 1985-03-04 1986-09-06 Japanese National Railways<Jnr> Abnormality detector for microcomputer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04103912A (en) * 1990-08-23 1992-04-06 Rinnai Corp Combustion controller
JP2005003755A (en) * 2003-06-10 2005-01-06 Fuji Photo Film Co Ltd Cassette for detecting image information

Also Published As

Publication number Publication date
JPH079601B2 (en) 1995-02-01
KR930004531B1 (en) 1993-05-27
KR890016344A (en) 1989-11-28

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees