SE441224B - SIGNAL TECHNICAL CIRCUIT SECURES RELAY CONTROL - Google Patents

SIGNAL TECHNICAL CIRCUIT SECURES RELAY CONTROL

Info

Publication number
SE441224B
SE441224B SE8005459A SE8005459A SE441224B SE 441224 B SE441224 B SE 441224B SE 8005459 A SE8005459 A SE 8005459A SE 8005459 A SE8005459 A SE 8005459A SE 441224 B SE441224 B SE 441224B
Authority
SE
Sweden
Prior art keywords
control
semiconductor switch
relay
circuit
switches
Prior art date
Application number
SE8005459A
Other languages
Swedish (sv)
Other versions
SE8005459L (en
Inventor
H J Knapp
Original Assignee
Int Standard 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of SE8005459L publication Critical patent/SE8005459L/en
Publication of SE441224B publication Critical patent/SE441224B/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1633—Error detection by comparing the output of redundant processing systems using mutual exchange of the output between the redundant processing components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)
  • Relay Circuits (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Description

80054-59-6 2 Ytterligare en utföringsform av strömkretsen enligt upp- finningen är angiven i kravet 4 och möjliggör pulsstyrning av reläet. Om styrenheten skulle bli felaktig -om de samverkande halvledarna skulle drivas med en konstant ström skulle ett sådant fel medföra att omkopplaren skulle leda ström kontinuerligt- fràn- slås halvledaromkopplaren i denna utföringsform automatiskt efter en bestämd tid. 80054-59-6 2 Another embodiment of the circuit according to the finding is stated in claim 4 and enables pulse control of relay. If the control unit were to go wrong - about the collaborators the semiconductors would be operated with a constant current would such error would cause the switch to conduct current continuously- from the semiconductor switch in this embodiment is automatically switched off a fixed time.

En utföringsform av den i kravet 5 definierade typen medför en inbesparing av komponenter då det gäller att avskilja mikro- datorerna (Ä, 5) från halvledaromkopplarna (2, 5) som skall styras.An embodiment of the type defined in claim 5 entails a saving of components when it comes to separating micro- the computers (Ä, 5) from the semiconductor switches (2, 5) to controlled.

En utföríngsform av strömkretsen enligt uppfinningen kommer nu att beskrivas i detalj under hänvisning till bifogade ritning, som visar ett relä A, vars lindning är inkopplad i serie med två halvledaromkopplare 2, 3, vilka i detta fall utgörs av två tran- sistorer. Transistorernas basuttag är anslutna till två styren- heter 4, 5 och är anordnade att påverkas av dessa. Via kontroll- ledningar 6 och 7 kan styrenheterna 4 och 5 övervaka tillslag- ningen av halvledaromkopplaren 3 vid dennas kollektoruttag 9 resp. tillslagning av halvledaromkopplaren 2 vid dennas kollektoruttag 8. Om styrenneterna är datorer kan denna övervakning integreras i programmet som skall verkställas. Om styrenheterna inte är programmerbara måste en särskild övervakningskrets finnas.An embodiment of the circuit according to the invention will come now to be described in detail with reference to the accompanying drawing, showing a relay A, the winding of which is connected in series with two semiconductor switches 2, 3, which in this case consist of two transducers sistorer. The base terminals of the transistors are connected to two 4, 5 and are arranged to be affected by these. Via control lines 6 and 7, the control units 4 and 5 can monitor the the semiconductor switch 3 at its collector socket 9 resp. switching on the semiconductor switch 2 at its collector socket 8. If the control networks are computers, this monitoring can be integrated into the program to be implemented. If the controllers are not programmable, there must be a special monitoring circuit.

Figuren visar också övervakningskontakter al och a2 som tillhör reläet A, Dessa kontakters tillstånd känns av medelst styrenheterna via ingångar lO resp. ll. Ytterligare kontakter (inte visade) hos reläet kan anslutas till en godtjoklig krets som, eftersom den är elektriskt isolerad eller avskild från styr- kretsarna, kan utformas för betydligt högre matningsspänningar eller andra typer av ström.The figure also shows monitoring contacts a1 and a2 as belongs to relay A, The condition of these contacts is sensed by means of the control units via inputs 10 resp. ll. Additional contacts (not shown) of the relay can be connected to an arbitrary circuit which, since it is electrically isolated or separated from the circuits, can be designed for significantly higher supply voltages or other types of power.

Den enligt uppfinningen angivna strömkretsen är signaltek- niskt säker, dvs. ett fel hos en komponent förblir inte oobserve- rat och leder inte till att reläet påverkas på.ett icke önsk- värt sätt. Om den ena styrenheten faller bort såsom följd av en felaktig komponent kommer den tillhörande halvledaromkopplaren antingen att inte pâverkas alls eller att påverkas kontinuerligt.The circuit specified according to the invention is signal technically safe, ie. a component fault does not remain unobserved and does not cause the relay to be affected by an undesirable worthwhile. If one control unit falls off as a result of one faulty component comes the associated semiconductor switch either not to be affected at all or to be affected continuously.

Båda dessa fall kommer att upptäckas av den andra styrenheten,Both of these cases will be detected by the other control unit,

Claims (1)

8005459-6 3 vilken övervakar halvledaromkopplaren som tillhör den felaktiga styrenheten. I så fall kan reläets strömmatning frånslås via om- kopplingsorgan, som inte är visade. Om en halvledaromkopplare blir felaktig händer samma sak som om en styrenhet blir felaktig. Om en monostabil multivibrator med en förutbestämd fördröj- ningstid är inkopplad mellan de enskilda styrenheterna och styr- ingången hos den motsvarande halvledaromkopplaren och styrenheten avger en serie korta pulser såsom styrsignal erhåller man ännu en möjlighet att kontrollera att styrenheterna arbetar på korrekt sätt. Om nämnda pulsserie inte förekommer medför detta att den monostabila multivibratorn frånslår halvledaromkopplaren, oberoen- de av vilken spänning som uppträder vid styrennetens utgång. I detta fall kan också en kontroll med avseende pà de monostabila multivibratorernas drift utföras via kontrolledningarna 6, 7. Patentkrav l. Strömkrets för signaltekniskt säker styrning av ett relä medelst två av varandra oberoende styrenheter, k ä n n e t e c k - n a d därav, att reläets lindning är inkopplad mellan och i serie med omkopplingsbanorna hos två halvledaromkopplare (2, 3), att vardera halvledaromkwpplaren är styrd av en av styrenheterna (4, 5) och att vardera styrenneten inkluderar övervakningsorgan som via en kontrallaaniïrv; i 7) är inkoppiaae till utgången (9, 8) nos halvledaromkopplaren (3, 2) som är styrd av den respektive andra styrenheten och därvid övervakar halvledaromkopplarens drift.8005459-6 3 which monitors the semiconductor switch belonging to the faulty control unit. In this case, the current supply of the relay can be switched off via switching means, which are not shown. If a semiconductor switch goes wrong, the same thing happens as if a controller goes wrong. If a monostable multivibrator with a predetermined delay time is connected between the individual control units and the control input of the corresponding semiconductor switch and the control unit emits a series of short pulses as a control signal, another possibility is obtained to check that the control units work correctly. If the said pulse series does not occur, this means that the monostable multivibrator switches off the semiconductor switch, regardless of the voltage that occurs at the output of the control network. In this case, a check regarding the operation of the monostable multivibrators can also be performed via the control lines 6, 7. Claim 1. Circuit for signal-technically safe control of a relay by means of two independent control units, characterized in that the winding of the relay is connected between and in series with the switching paths of two semiconductor switches (2, 3), each semiconductor switch being controlled by one of the control units (4, 5) and each control network including monitoring means as via a control circuit; i 7) is the input to the output (9, 8) of the semiconductor switch (3, 2) which is controlled by the respective second control unit and thereby monitors the operation of the semiconductor switch. 2. Strömkrets enligt krav l, k ä n n e t e c k n a d därav, att styrenheterna väsentligen innehåller mikrodatorer.2. A circuit according to claim 1, characterized in that the control units substantially contain microcomputers. 5. Strömkrets enligt krav l eller 2, k ä n n e t e c k n a d därav, att den innefattar ytterligare övervakningsorgan, vilka kontrollerar läget hos reläet och för detta ändamål är anslutna till var sin kontakt (al, a2) hos reläet via en kontrolledning (10, ll). Ä. Strömkrets enligt något av kraven l - 5, k ä n n e t e c k - n a d därav, att före styringångarna hos halvledaromkopplarna (2, 5) är monostabila multivibratorer inkopplade, vilka vid mot~ - PG CTJÄLITE ø~ 8005459-6 Uf tagning av en styrpuls från styrenheten tillslår den respektive korresponderande halvledaromkopplaren under en förutbestämd tids- period.5. A circuit as claimed in Claim 1 or 2, characterized in that it comprises further monitoring means which control the position of the relay and for this purpose are connected to respective contacts (a1, a2) of the relay via a control line (10, 11). . Circuit according to one of Claims 1 to 5, characterized in that monostable multivibrators are connected in front of the control inputs of the semiconductor switches (2, 5), which are connected to a control pulse when receiving a control pulse. from the control unit, the respective corresponding semiconductor switch switches on for a predetermined period of time. 5. Strömkrets enligt något av kraven 2 - 4, k ä n n e t e c k - n a d därav, att vardera mikrodatorn (4, 5) har det ena uttaget hos sin matningskälla ansluten till potentialen (+UV, -UT) hos katoden hos den halvledaromkopplare (2, 3) som skall styras.Circuit according to one of Claims 2 to 4, characterized in that each microcomputer (4, 5) has one socket of its supply source connected to the potential (+ UV, -UT) of the cathode of the semiconductor switch (2). , 3) to be controlled.
SE8005459A 1979-08-09 1980-07-30 SIGNAL TECHNICAL CIRCUIT SECURES RELAY CONTROL SE441224B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2932270A DE2932270C2 (en) 1979-08-09 1979-08-09 Circuit arrangement for the safe control of a relay in terms of signal technology

Publications (2)

Publication Number Publication Date
SE8005459L SE8005459L (en) 1981-02-10
SE441224B true SE441224B (en) 1985-09-16

Family

ID=6078008

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8005459A SE441224B (en) 1979-08-09 1980-07-30 SIGNAL TECHNICAL CIRCUIT SECURES RELAY CONTROL

Country Status (7)

Country Link
AT (1) AT381412B (en)
CH (1) CH646535A5 (en)
DE (1) DE2932270C2 (en)
ES (1) ES8105495A1 (en)
IL (1) IL60735A (en)
SE (1) SE441224B (en)
YU (1) YU42528B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137450C2 (en) * 1981-09-21 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Safety output circuit for a data processing system
FR2539887B1 (en) * 1983-01-20 1985-07-26 Tech Europ Commutation PROCESS FOR ENSURING THE SECURITY OF THE OPERATION OF A PROGRAMMABLE AUTOMATON AND AUTOMATON FOR THE IMPLEMENTATION OF THE PROCESS
FR2540685A1 (en) * 1983-02-03 1984-08-10 Jeumont Schneider INTERFACE FOR CONNECTING A COMPUTER SYSTEM TO AN ACTUATOR DEVICE
EP0222047B2 (en) * 1985-11-13 1994-09-14 Nec Home Electronics Ltd. Fail-safe control circuit
EP1811347A1 (en) * 2006-01-13 2007-07-25 Siemens Aktiengesellschaft Switch device control using a retriggerable monoflop
KR102342841B1 (en) * 2018-11-20 2021-12-22 주식회사 엘지에너지솔루션 Battery management apparatus, and battery pack and power system including the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647367C3 (en) * 1976-10-20 1982-12-09 Siemens AG, 1000 Berlin und 8000 München Redundant process control arrangement

Also Published As

Publication number Publication date
AT381412B (en) 1986-10-10
DE2932270C2 (en) 1986-06-19
DE2932270B1 (en) 1980-12-04
SE8005459L (en) 1981-02-10
ES494110A0 (en) 1981-06-01
ATA386380A (en) 1986-02-15
IL60735A0 (en) 1980-10-26
YU200580A (en) 1983-10-31
CH646535A5 (en) 1984-11-30
ES8105495A1 (en) 1981-06-01
YU42528B (en) 1988-10-31
IL60735A (en) 1983-11-30

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