EP1477739A3 - Process to command a safety relay in an automatic burner - Google Patents

Process to command a safety relay in an automatic burner Download PDF

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Publication number
EP1477739A3
EP1477739A3 EP04010634A EP04010634A EP1477739A3 EP 1477739 A3 EP1477739 A3 EP 1477739A3 EP 04010634 A EP04010634 A EP 04010634A EP 04010634 A EP04010634 A EP 04010634A EP 1477739 A3 EP1477739 A3 EP 1477739A3
Authority
EP
European Patent Office
Prior art keywords
safety relay
burner
command
automatic burner
automatic
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.)
Withdrawn
Application number
EP04010634A
Other languages
German (de)
French (fr)
Other versions
EP1477739A2 (en
Inventor
Thorsten Cramer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1477739A2 publication Critical patent/EP1477739A2/en
Publication of EP1477739A3 publication Critical patent/EP1477739A3/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/20—Opto-coupler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/30—Switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Ansteuerung eines Sicherheitsrelais (S) in einem Feuerungsautomaten, insbesondere zum Einsatz bei einem Brenner an einem Heizgerät, wobei mit dem Sicherheitsrelais (S) die Spannungsversorgung für die nachgeschalteten Ausgänge der Brennerkomponenten frei gegeben wird. Dabei soll eine Inbetriebnahme von Brennerkomponenten bei vorliegenden Fehlern am Sicherheitsrelais durch dessen Überwachung verhindert werden.The invention relates to a method for controlling a safety relay (S) in an automatic burner control, in particular for use in a burner on a heater, with the safety relay (S), the voltage supply for the downstream outputs of the burner components is released. In this case, a commissioning of burner components is to be prevented in the presence of errors on the safety relay by monitoring.

Erfindungsgemäß sind deshalb zwei Mikroprozessoren (M1, M2) miteinander verknüpft, welche jeweils ein dynamisches Signal einer Ansteuerschaltung (A1, A2) mit zwei parallelen Zweigen zuführen. Jeder Zweig wird einzeln auf Funktionalität geprüft und eine Rückmeldung zum Schaltzustand des Sicherheitsrelais (S) erfolgt über eine Optokopplerschaltung (O). Bei einem Fehler in einem Zweig liegt eine Störung vor und der Feuerungsautomat verriegelt.

Figure imgaf001
According to the invention, therefore, two microprocessors (M1, M2) are linked to each other, which each supply a dynamic signal to a drive circuit (A1, A2) with two parallel branches. Each branch is individually tested for functionality and feedback on the switching state of the safety relay (S) via an optocoupler circuit (O). If there is a fault in a branch there is a fault and the automatic burner control unit is locked.
Figure imgaf001
EP04010634A 2003-05-15 2004-05-05 Process to command a safety relay in an automatic burner Withdrawn EP1477739A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10321764A DE10321764B4 (en) 2003-05-15 2003-05-15 Method for controlling a safety relay in an automatic burner control
DE10321764 2003-05-15

Publications (2)

Publication Number Publication Date
EP1477739A2 EP1477739A2 (en) 2004-11-17
EP1477739A3 true EP1477739A3 (en) 2007-11-21

Family

ID=33016396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04010634A Withdrawn EP1477739A3 (en) 2003-05-15 2004-05-05 Process to command a safety relay in an automatic burner

Country Status (2)

Country Link
EP (1) EP1477739A3 (en)
DE (1) DE10321764B4 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008475A1 (en) * 2006-02-23 2007-08-30 Siemens Building Technologies Hvac Products Gmbh Method for the safety-related control of an actuator
DE102009036423C5 (en) 2009-08-06 2023-03-02 Robert Bosch Gmbh Method and device for interrupting a fuel supply and use thereof
DE102021126553A1 (en) 2021-10-13 2023-04-13 Ebm-Papst Landshut Gmbh Process for safety-related control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669656A5 (en) * 1985-03-15 1989-03-31 Vaillant Gmbh Ignition system for burner of boiler
DE3923773A1 (en) * 1988-07-20 1990-03-01 Vaillant Joh Gmbh & Co Microcomputer control for gas-fired central heating boiler
DE9310449U1 (en) * 1993-03-05 1994-07-14 Landis & Gyr Business Support Ag, Zug Power supply for a particularly redundant computer system of a control device
DE4342903A1 (en) * 1993-12-16 1995-06-22 Bosch Gmbh Robert Device for monitoring at least one safety-relevant function of a device
DE4337661A1 (en) * 1993-11-04 1995-07-06 Buderus Heiztechnik Gmbh Heating appliance function monitoring or usage metering circuit
DE19856954C1 (en) * 1998-12-10 2000-05-11 Bosch Gmbh Robert Control device for burner, has two control units which drive respective switches of two valves

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2247918C3 (en) * 1972-09-29 1979-03-22 Otto Dold, Temperaturmess- Und Regelgeraete, 7012 Schmiden Safety circuit for automatic firing systems in gas and oil firing systems
DE29513994U1 (en) * 1995-08-24 1997-01-02 Max Weishaupt GmbH, 88477 Schwendi Fan oil or gas burner for a heating system with an electrical control device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669656A5 (en) * 1985-03-15 1989-03-31 Vaillant Gmbh Ignition system for burner of boiler
DE3923773A1 (en) * 1988-07-20 1990-03-01 Vaillant Joh Gmbh & Co Microcomputer control for gas-fired central heating boiler
DE9310449U1 (en) * 1993-03-05 1994-07-14 Landis & Gyr Business Support Ag, Zug Power supply for a particularly redundant computer system of a control device
DE4337661A1 (en) * 1993-11-04 1995-07-06 Buderus Heiztechnik Gmbh Heating appliance function monitoring or usage metering circuit
DE4342903A1 (en) * 1993-12-16 1995-06-22 Bosch Gmbh Robert Device for monitoring at least one safety-relevant function of a device
DE19856954C1 (en) * 1998-12-10 2000-05-11 Bosch Gmbh Robert Control device for burner, has two control units which drive respective switches of two valves

Also Published As

Publication number Publication date
EP1477739A2 (en) 2004-11-17
DE10321764B4 (en) 2005-04-28
DE10321764A1 (en) 2004-12-09

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