ATE145087T1 - MONITORING CIRCUIT FOR COMPUTER-CONTROLLED SECURITY DEVICES - Google Patents

MONITORING CIRCUIT FOR COMPUTER-CONTROLLED SECURITY DEVICES

Info

Publication number
ATE145087T1
ATE145087T1 AT93104908T AT93104908T ATE145087T1 AT E145087 T1 ATE145087 T1 AT E145087T1 AT 93104908 T AT93104908 T AT 93104908T AT 93104908 T AT93104908 T AT 93104908T AT E145087 T1 ATE145087 T1 AT E145087T1
Authority
AT
Austria
Prior art keywords
safety
relay
monitoring circuit
computer
safety relay
Prior art date
Application number
AT93104908T
Other languages
German (de)
Inventor
Karl Jun Dungs
Rudolf Haug
Alfred Sinner
Original Assignee
Dungs Karl Gmbh & Co
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 Dungs Karl Gmbh & Co filed Critical Dungs Karl Gmbh & Co
Application granted granted Critical
Publication of ATE145087T1 publication Critical patent/ATE145087T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/043—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current making use of an energy accumulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Relay Circuits (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

The invention relates to a monitoring circuit for computer-controlled safety devices. The monitoring circuit described here is an arrangement which initially holds safety-relevant loads switched off by means of a safety relay (K) until a self-test of the controlling computer has been completed within required time conditions. A holding capacitor (C1) is connected in parallel with the drive path of the safety relay (K), which holding capacitor (C1) can be charged via a charging circuit (R1, V1) when the safety relay (K) is in the quiescent position (Nc), and, after charging has been completed, moves the relay into the operating position, subject to simultaneous application of a drive signal from the microprocessor, only when specified connection conditions for the safety-relevant loads are met. A remanence relay can be used as the safety relay (K) for defect locking. The monitoring circuit according to the invention uses the difference between the pull-in voltage and the tripping voltage of the safety relay (K). <IMAGE>
AT93104908T 1992-03-28 1993-03-25 MONITORING CIRCUIT FOR COMPUTER-CONTROLLED SECURITY DEVICES ATE145087T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4210216A DE4210216C3 (en) 1992-03-28 1992-03-28 Monitoring circuit for computer controlled safety devices

Publications (1)

Publication Number Publication Date
ATE145087T1 true ATE145087T1 (en) 1996-11-15

Family

ID=6455308

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93104908T ATE145087T1 (en) 1992-03-28 1993-03-25 MONITORING CIRCUIT FOR COMPUTER-CONTROLLED SECURITY DEVICES

Country Status (3)

Country Link
EP (1) EP0563787B1 (en)
AT (1) ATE145087T1 (en)
DE (1) DE4210216C3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2773259B1 (en) * 1997-12-30 2001-06-08 Abb Control Sa CONTINUOUS CONTACTOR CONTROL CIRCUIT
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
EP2868970B1 (en) 2013-10-29 2020-04-22 Honeywell Technologies Sarl Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
IT201900009879A1 (en) * 2019-06-24 2020-12-24 Tekfer S R L Circuit arrangement of double exchange relays, in particular for railway signaling applications, and procedure for its control
CN114320570B (en) * 2021-12-20 2023-06-16 江苏悦达专用车有限公司 Protection system of washing and sweeping vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653458A5 (en) * 1981-09-25 1985-12-31 Stin Circuit arrangement for failsafe information output from a dual computer system
DE3714630A1 (en) * 1987-05-02 1988-11-17 Hella Kg Hueck & Co DEVICE FOR MONITORING ELECTRONIC DEVICES
GB2207307A (en) * 1987-07-22 1989-01-25 Msa Fail-safe monitoring circuit
DE3836842A1 (en) * 1987-10-27 1989-05-11 Vaillant Joh Gmbh & Co Automatic firing system

Also Published As

Publication number Publication date
DE4210216C2 (en) 1994-08-25
DE4210216C3 (en) 1997-04-03
DE4210216A1 (en) 1993-09-30
EP0563787A1 (en) 1993-10-06
EP0563787B1 (en) 1996-11-06

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