JPS57108522A - Digital combustion controlling apparatus - Google Patents

Digital combustion controlling apparatus

Info

Publication number
JPS57108522A
JPS57108522A JP18476780A JP18476780A JPS57108522A JP S57108522 A JPS57108522 A JP S57108522A JP 18476780 A JP18476780 A JP 18476780A JP 18476780 A JP18476780 A JP 18476780A JP S57108522 A JPS57108522 A JP S57108522A
Authority
JP
Japan
Prior art keywords
shift register
matching circuit
prepurging
circuit
fail
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
JP18476780A
Other languages
Japanese (ja)
Other versions
JPS6349136B2 (en
Inventor
Yuji Yamamoto
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.)
Azbil Corp
Original Assignee
Azbil 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 Azbil Corp filed Critical Azbil Corp
Priority to JP18476780A priority Critical patent/JPS57108522A/en
Publication of JPS57108522A publication Critical patent/JPS57108522A/en
Publication of JPS6349136B2 publication Critical patent/JPS6349136B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE: To obtain a fail-safe type digital combustion controlling apparatus for use in a gas burner or the like, by connecting a matching circuit of a memory element to a prepurging shift register, and connecting the matching circuit separately to a trial shift register and an AND-circuit.
CONSTITUTION: When a thermal request signal TH is produced, a safety switch heater SSH and a prepurging shift register PSR are set into operation for carrying out a series of operation according to a predetermined sequence. At the same time, a first and a second valve controlling circuits V1C and V2C are operated successively through operation of a trial clock generating sectin OSC2, so that a gas burner or the like is ignited. Here, if through-pass is caused in the prepurging shift register PSR, a matching circuit MP is kept in its low level, so that rotation of a fan motor is continued maintaining ignition awaiting condition. In this state, an output signal of the matching circuit MP is given to an AND- circuit AN8 for ensuring safe operation and thus operating a fail-safe system.
COPYRIGHT: (C)1982,JPO&Japio
JP18476780A 1980-12-25 1980-12-25 Digital combustion controlling apparatus Granted JPS57108522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18476780A JPS57108522A (en) 1980-12-25 1980-12-25 Digital combustion controlling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18476780A JPS57108522A (en) 1980-12-25 1980-12-25 Digital combustion controlling apparatus

Publications (2)

Publication Number Publication Date
JPS57108522A true JPS57108522A (en) 1982-07-06
JPS6349136B2 JPS6349136B2 (en) 1988-10-03

Family

ID=16158962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18476780A Granted JPS57108522A (en) 1980-12-25 1980-12-25 Digital combustion controlling apparatus

Country Status (1)

Country Link
JP (1) JPS57108522A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03170713A (en) * 1989-11-29 1991-07-24 Dainichi Kogyo Kk Burner

Also Published As

Publication number Publication date
JPS6349136B2 (en) 1988-10-03

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