EP2826052B1 - Circuit à relais de sécurité - Google Patents

Circuit à relais de sécurité Download PDF

Info

Publication number
EP2826052B1
EP2826052B1 EP13709093.2A EP13709093A EP2826052B1 EP 2826052 B1 EP2826052 B1 EP 2826052B1 EP 13709093 A EP13709093 A EP 13709093A EP 2826052 B1 EP2826052 B1 EP 2826052B1
Authority
EP
European Patent Office
Prior art keywords
circuit
relay
state
switch
detection means
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.)
Active
Application number
EP13709093.2A
Other languages
German (de)
English (en)
Other versions
EP2826052A1 (fr
Inventor
Fabian Zink
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2826052A1 publication Critical patent/EP2826052A1/fr
Application granted granted Critical
Publication of EP2826052B1 publication Critical patent/EP2826052B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
    • 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

Definitions

  • the invention relates to a circuit arrangement for switching a load circuit in safety technology, with error states of the relay to be detected.
  • the currentless circuit of the load circuit (switch-off safety relay circuit) or the switching on (“switch-on safety relay circuit") of the load circuit should be ensured.
  • electromagnetic relays are preferably used.
  • the switching position of mechanical switching contacts is checked, whereby it is known (EP 1 202 313 A1 ), apply a high-frequency signal to the control circuit with the switch to be tested and determine the switch position with a high-frequency detector.
  • EP 1 202 313 A1 it is also known to arrange two relay switches in a row in the load circuit.
  • the check of the switch position by means of a high-frequency control circuit is complex and does not detect certain error conditions.
  • the relay switch can assume its open position, which can be determined, but if it comes through a foreign body or by metal break a bridge between the normally open contact and the normally closed relay switch, this fault condition can not be determined with the known device.
  • Such a circuit arrangement is also from the document EP 2 256 777 A2 known.
  • the invention has for its object to offer a safety relay circuit, can be reliably detected in the fault conditions at the relay switch.
  • the currentless circuit of a load circuit, or the switching of the load circuit can be safely brought about.
  • a monitoring circuit which logically links the command input to an electromechanical relay with a circuit indicating the relay switch position or the relay switch state and obtains an error error signal therefrom.
  • the relay switch of two relays are connected in series in the load circuit in the invention. Thus, if one of the switches does not reach its open state, then the other relay switch causes the current path to be de-energized to the load.
  • the relay switch of two relays in the load circuit are connected in parallel with each other in the invention. Thus, if one of the switches does not reach its closed state, then the other relay switch causes the current path to close to the load.
  • each relay switch In terms of safety technology, it must be required that faults are detected, even if they do not immediately lead to a faulty circuit, because the fault in one of the relay switches is cured by the correct operation of the other relay switch.
  • a display circuit In each relay switch, a display circuit is provided, however, is able to detect disturbances due to erroneous bridging at the respective relay switch by current detection means.
  • each display circuit has a light emitting diode driven by an associated auxiliary voltage source.
  • an appropriate relay switch When an appropriate relay switch is opened, the associated LED illuminates fully, signaling the correct state of the switch in the quiescent state of the circuit. In contrast, if the load circuit is active and there is no fault in the relay switches, then the LEDs are switched dark.
  • the turn-off safety relay circuit when the load circuit is activated, a fault occurs in one of the relays such that all three terminal contact points of the failed relay switch are electrically connected, then the associated LED lights up due to operation Auxiliary voltage source and it is possible to turn off the load circuit by switching the non-faulted relay. This can be done within a safety period.
  • a fault in the switch-off safety relay circuit can occur even when the load circuit is de-energized, namely that in one of the display circuits, the current flow of the auxiliary voltage source is disturbed and the LED does not light properly. As a result, it can be recognized that the relevant relay is no longer safe. The switching on of the load circuit can be prevented.
  • the switch-on safety relay circuit If in the switch-on safety relay circuit one of the relay switches is welded to the contact point of the monitoring circuit ("hanging contacts") or if a "three-point contact override" occurs in one of the relay switches, then this is detected when the display circuit is interrogated due to the LED lighting up , The safe switch-on state of the load circuit is maintained via the undisturbed, parallel-connected relay.
  • the safety circuit comprises a load circuit LN between the terminals L and N, which can be turned on and off by a relay K1, a display circuit A1 indicating the switch position of the relay, and an evaluation circuit indicating the display state of the display circuit A1 with the command input the relay K1 logically linked and from the overall condition of the circuit as "error-free" or evaluated as "faulty".
  • a load circuit LN between the terminals L and N, which can be turned on and off by a relay K1, a display circuit A1 indicating the switch position of the relay, and an evaluation circuit indicating the display state of the display circuit A1 with the command input the relay K1 logically linked and from the overall condition of the circuit as "error-free" or evaluated as "faulty".
  • the relay K1 has as an electromechanical relay on a switch tongue k1, which switches between a closing point S1 and an opening point ⁇ 1 and is connected to a common point G1.
  • the display circuit A1 comprises an auxiliary power source H1 and current detection means in the form of a light emitting diode LED1 and is connected to the switching points G1 and ⁇ 1.
  • the light-emitting diode LED1 is in operation or out of operation.
  • the switched-on state of the light-emitting diode is indicated by arrows, while in the switched-off state the arrows are omitted.
  • the evaluation circuit comprises an integrated circuit IC1, which can make logic operations in such a way that two similar input signals give an output signal "error-free", which is represented here by a "0", and two dissimilar input signals leads to the output of an error signal, which symbolized here by a "1".
  • an input signal to the integrated circuit IC1 on the one hand the command input to the relay K1 and on the other hand the signal of an opto-coupler is used, which converts the signal of the LED LED1 into a corresponding input signal to the integrated circuit IC1.
  • the optocoupler consists of a circuit with switching transistor Q1, which is turned on by the light of LED1 and otherwise switched off. In the circuit of the optocoupler is a resistor in series with the transistor Q1 and a tap leads the signal of the optocoupler to the integrated circuit IC1 of the evaluation circuit.
  • Fig. 1 shows the error-free state of the safety relay circuit in the idle state.
  • the relay K1 has turned off the load circuit LN and turned on the display circuit A1.
  • the LED LED1 lights up and turns on the transistor Q1, so that the optocoupler outputs the signal "0". This agrees with the command signal "0" to the relay K1.
  • the integrated circuit IC1 then outputs the error-free signal "0".
  • Fig. 2 shows the active state of the safety relay circuit.
  • a switch-on command to the relay K1 is given, which turns on the load circuit LN and turns off the display circuit A1.
  • the optocoupler no longer receives a flashing signal and transmits the signal "1" to the integrated circuit IC1. Since both inputs of the integrated circuit IC1 are equivalent to the evaluation circuit, the signal "error-free", symbolized by "0", is output.
  • Fig. 3 shows a fault condition I, which can be characterized by suspended or welded contacts.
  • This fault state I occurs when switching off the relay K1 and means that the relay is no longer safe. Because of the faulty position of the switching tab k1, the diode LED1 in the indicator circuit A1 does not light, so that the optocoupler outputs the signal "1" to the integrated circuit IC1, which detects the inconsistency between the command input to the relay K1 and the reaction of the indicator circuit A1 and as error signal "1" outputs.
  • Fig. 4 shows an error state II, which can be referred to as "three-point contact override", because the switching points S1, G1 and ⁇ 1 have contact with each other.
  • error state II the diode LED lights up.
  • the relay K1 is switched on with the command signal "1"
  • should open the display circuit A1 which does not happen because of the three-point contact bridging. This leads to a mismatch between the input signals of the integrated circuit IC1 and thus to a delivery of an error signal "1".
  • Fig. 5 is a fault state III outlined, which consists in a kind of two-point contact bridging.
  • the LED receives an overcurrent LED1, which is mitigated by a (not shown) protective resistor.
  • the thereby emitting light makes the optocoupler give the signal "0", which is detected by the integrated circuit IC1.
  • the input signal "1" to the relay K1 and the signal "0" of the display circuit A1 can be evaluated for error message.
  • the change between short-time lighting of the LED and the extinction of the LED in the evaluation circuit can be exploited, as would occur in the destruction of the LED.
  • circuitry can be referred to as a safety relay with optical diagnosis.
  • the circuit includes two electromagnetic relays K1 and K2 of a simpler, conventional design, which are connected in parallel to each other to a control source, not shown, so that the relay coils are energized or not energized. It is also possible to control the relays K1 and K2 by separate control circuits.
  • the relays K1 and K2 each have associated switches k1 and k2 which are at rest, as in FIG Fig. 7 represented, and one Working position ( Fig. 8 ) depending on the excitation state of the relay coils. In their working position, the relay switches k1 and k2 close a load circuit extending between the terminals L and N.
  • Each relay switch k1, k2 is associated with a display circuit A1 or A2, which indicate the position of the switch k1 or k2 and each contain a light emitting diode LED1 or LED2 as current detection means and each an auxiliary voltage source H1, H2 for operating the respective associated light emitting diode.
  • the relay switch k1 in the illustrated rest position ( Fig. 7 ) bridges the otherwise open display circuit A1 to two (G1, ⁇ 1) of the three terminal contact points (S1, G1, ⁇ 1) of the relay K1 and in the same way connects the switch k2 the corresponding terminal contact points (S2, G2, ⁇ 2) of the Relay K2 to close the second display circuit Ü2. If the relay switches k1 and k2 from their illustrated rest position ( Fig. 7 ) into the working position ( Fig. 8 ), the display circuits A1 and A2 are opened and the load circuit LN is closed.
  • auxiliary voltage source H1, H2 can be used any type of power source, with the current detection means and especially light emitting diodes can be operated.
  • a transformer having a primary winding and two secondary windings is used as auxiliary voltage sources H1, H2.
  • the transformer forms a first transformer T1 as a first auxiliary voltage source H1 and a second transformer T2 as a second auxiliary voltage source H2.
  • the primary winding is supplied with voltage pulses to the respective auxiliary voltage sources H1, H2 cyclically to be effective and thereby query the respective state of the display circuits A1, A2.
  • Fig. 7 shows a schematic diagram of the shutdown safety relay circuit in the idle state.
  • the auxiliary voltage sources H1, H2 are shown in simplified form as DC voltage sources.
  • the connection contact points are indicated by S1, G1 and ⁇ 1 or S2, G2 and ⁇ 2.
  • the first relay switch k1 closes the first display circuit A1 between the contact points G1 and ⁇ 1 and the second relay switch S2 closes the second display circuit A2 between the contact points G2 and ⁇ 2.
  • Arrows at the LEDs LED1 and LED2 indicate the lighting status of these diodes. If both diodes are fully lit, there is no fault condition in the current circuit of the load circuit, as with Fig. 1 has been explained.
  • Fig. 8 shows the turn-off safety relay circuit in its active state, in which the load circuit LN is turned on.
  • the switch k1 connects the contact points S1 with G1 and the switch k2 connects the contact points S2 with G2.
  • the display circuits A1 and A2 are open and the LEDs LED1 and LED2 are not lit. As with Fig. 2 explained, is thus the error-free active state.
  • Fig. 9 an error state I ("hanging contacts") is explained at the switch k1. While the switch k2 has gone to sleep when the load circuit is switched off, the switch k1 has become stuck at the contact point S1 (eg because of welded contacts). Accordingly, the first display circuit A1 is left open and the LED LED1 does not light up.
  • This error state I can be detected, as with Fig. 3 explained in detail.
  • the discrepancy between the lighting states of LED1 and LED2 can be detected as an error. The renewed restart of the load circuit can be prevented.
  • Fig. 10 outlines another fault state II ("three-point contact override") that can come to light when the load circuit LN is switched on.
  • the fault occurs due to a short circuit between the contact points S1, G1 and ⁇ 1, such as when a spring in the relay is broken.
  • Fig. 4 explains how this error condition II can be detected.
  • the light-emitting diode LED1 of the indicator circuit A1 lights up in the event of this fault, while the light-emitting diode LED2 of the indicator circuit A2 goes out.
  • the load circuit should be de-energized immediately. Immediate switch-off is possible via the relay K2.
  • Fig. 11 shows a fault state III ("two-point contact override"), in which break contact of a metal part, the points S1 and ⁇ 1 with each other. This can be detected before switching on the load circuit, because in the idle state of the circuit ( Fig. 7 ) both LEDs LED1 and LED2 should be lit, but in fault condition III LED1 goes out. Then the load circuit should not be turned on. If the fault condition III occurs during operation, this error will be detected according to the procedure Fig. 5 detected.
  • the described circuit arrangement thus comprises a monitoring circuit, which display circuits A1, A2 and evaluation circuits according to the Fig. 1 to 5 having.
  • the evaluation circuits A1, A2 associated with integrated circuits may be combined with each other and additionally contain a further integrated logic circuit to record the positions of the relay switch k1, k2 and the response states of the LEDs LED1, LED2 and evaluate by logical link and optionally perform safety switching measures.
  • Fig. 6 modified such that the switches k1, k2 are parallel to each other in the load circuit LN, as is also the case of the FIGS. 12 and 13 evident.
  • the other switch can ensure that the load circuit is safely turned on or stays on.
  • Fig. 12 shows the idle state of the switch-on safety relay circuit and Fig. 13 their active state. At rest, both LEDs light up LED1 and LED 2 of the two display circuits A1 and A2, and in the active state of the switch-on safety relay circuit, the LEDs LED1 and LED2 are dark.
  • the error state I at the relay K1 is in the catching of the switch k1 at a contact point (here ⁇ 1). This can be determined according to the monitoring procedure, as in Fig. 3 described.
  • the error state I ("hanging contact") when querying the display circuits A1 and A2 can be determined by the fact that the light states of the LEDs LED1 and LED2 do not match. In this case, the on state of the load circuit LN is ensured by the switch S2.
  • fault condition II "three-point contact override" all three terminal contact points S1, G1, ⁇ 1 of the relay K1 have electrical contact with each other. This can, as with Fig. 4 be described.
  • the fault state II can be detected when tightening the relay K1, because the light states of the LEDs LED1 and LED2 differ.
  • the two described methods of fault detection are suitably combined with each other in the monitoring circuit, wherein the control positions of the relay switches k1 and k2 and the response states of the diodes LED1 and LED2 are logically linked together to detect the error conditions at the respective relay switches k1, k2.
  • the monitoring circuit used for this purpose may include the two display circuits A1, A2 and associated evaluation circuits and additional logic circuits to perform the described logical operations.
  • the evaluation circuits and the additional logic circuits are combined in a common integrated circuit.

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Relay Circuits (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Claims (11)

  1. Circuit destiné à commuter un circuit de courant de charge en technique de sécurité, comprenant :
    - au moins un relais électromagnétique (K1) comportant un commutateur (k1) commandé, qui, dans l'état actif du relais, occupe sa position de travail fermée et se situe dans ce cas dans le circuit de courant de charge (LN), tandis que dans l'état de repos du relais, le commutateur (k1) occupe, en ce qui concerne le circuit de courant de charge (LN), une position de repos ouverte,
    - au moins un circuit de surveillance, lequel comprend :
    - un circuit afficheur de position de commutateur (A1), qui contient une source de tension auxiliaire (H1) et des moyens de détection de courant et qui, dans l'état de repos du relais (K1), peut déclencher les moyens de détection de courant,
    - un circuit d'évaluation, lequel compare le déclenchement des moyens de détection à l'entrée de commande « marche » ou « arrêt » vers le relais (K1) et déduit de la comparaison l'état du circuit « sans défaillance » ou « défaillant »,
    - dans lequel, dans l'état de repos sans défaillance, le relais (K1) met le circuit de courant de charge (LN) hors tension et met le circuit d'affichage (A1) sous tension,
    - dans lequel, dans l'état actif sans défaillance, le relais (K1) met le circuit de courant de charge (LN) sous tension et le circuit afficheur (A1) hors tension,
    - dans lequel un état de défaillance « contacts suspendus » lors de la mise à l'arrêt du circuit de courant de charge (LN) peut être détecté par une divergence entre l'entrée de commande vers le relais et l'état de déclenchement des moyens de détection de courant,
    - dans lequel un état d'erreur « pontage des contacts trois points » apparait lors de la mise en service du circuit de courant de charge (LN) en raison d'une divergence entre l'entrée de commande vers le relais et l'état de déclenchement se maintenant partiellement des moyens de détection de courant, et
    - dans lequel un état d'erreur « pontage des contacts deux points » pendant le fonctionnement peut être détecté par une divergence entre l'entrée de commande vers le relais et un état de déclenchement erroné des moyens de détection de courant.
  2. Circuit selon la revendication 1,
    dans lequel un signal de commande logique « 1 », dans le cas d'une commande de mise sous tension du relais, et un signal de commande logique « 0 », dans le cas d'une commande de mise hors tension, sont délivrés au circuit d'évaluation,
    dans lequel un signal d'état logique « 0 », dans le cas d'un état de déclenchement positif des moyens de détection de courant, et un signal d'état « 1 », dans le cas d'un état de déclenchement négatif, sont produits, et
    dans lequel le circuit d'évaluation affiche une absence de défaillance lorsque le signal d'état concorde avec le signal d'instruction et affiche une défaillance en cas de divergence.
  3. Circuit selon la revendication 1 ou 2,
    dans lequel la commutation hors circuit du circuit de courant de charge (LN) doit être garantie, comprenant :
    - un premier relais électromagnétique (K1) comprenant un premier commutateur (k1),
    - un deuxième relais électromagnétique (K2) comprenant un deuxième commutateur (k2),
    - un premier circuit afficheur de position de commutateur (A1),
    - un deuxième circuit afficheur de position de commutateur (A2), et
    - un circuit d'évaluation, lequel compare les entrées de commande vers le relais (K1, K2) aux états de courant des circuits afficheurs (A1, A2) et en déduit l'état du circuit comme étant « sans défaillance » ou « défaillant ».
  4. Circuit selon la revendication 3,
    dans lequel le circuit de surveillance contient des circuits intégrés, lesquels sont associés aux circuits d'évaluation (A1, A2) respectifs, et contient en plus d'autres circuits logiques, afin d'évaluer la concordance des positions des commutateurs de relais (k1, k2) les uns parmi les autres,
    - dans lequel, dans l'état actif non défaillant, le premier et le deuxième commutateur (k1, k2) ferment le circuit de courant de charge (LN) et ouvrent le circuit afficheur (A1, A2) respectivement associé, ce qui se traduit par une absence de déclenchement des moyens de détection de courant,
    - dans lequel un état « contacts suspendus » sur un des relais peut maintenir le circuit afficheur (A1, A2) associé dans son état précédant la commutation hors courant du circuit de courant de charge (LN), ce qui peut être évalué comme un état de défaillance du relais en question,
    - dans lequel un état de défaillance « pontage des contacts trois points » peut apparaître à la suite d'un déclenchement partiel des moyens de détection de courant du relais défaillant, lorsque le circuit de courant de charge (LN) est mis en service, et
    - dans lequel un état de défaillance « pontage des contacts deux points », pour un des relais, ne peut entraîner le déclenchement des moyens de détection de courant du circuit afficheur associé, ou ne le peut que faiblement, lorsque les relais sont mis en service.
  5. Circuit selon la revendication 1 ou 2, dans lequel la mise sous tension du circuit de courant de charge doit être garantie, comprenant :
    - un premier relais électromagnétique (K1) comprenant un premier commutateur (k1),
    - un deuxième relais électromagnétique (K2) comprenant un deuxième commutateur (k2),
    - un premier circuit afficheur (A1),
    - un deuxième circuit afficheur (A2), et
    - un circuit d'évaluation, lequel compare les entrées de commande vers le relais (K1, K2) aux états de courant des circuits afficheurs (A1, A2) et en déduit l'état du circuit comme étant « sans défaillance » ou « défaillant ».
  6. Circuit selon la revendication 5,
    - dans lequel le circuit de surveillance contient des circuits intégrés, lesquels sont associés aux circuits d'évaluation (A1, A2) respectifs, et contient en outre d'autres circuits logiques, afin d'évaluer la concordance des positions des commutateurs de relais (k1, k2) les uns parmi les autres,
    - dans lequel, dans l'état actif non défaillant, le premier et le deuxième commutateur (k1, k2) ferment le circuit de courant de charge (LN) et ouvrent le circuit afficheur (A1, A2) respectif associé, ce qui se traduit par une absence de réponse des moyens de détection de courant,
    - dans lequel un état « contacts suspendus » sur un des relais peut maintenir le circuit afficheur associé dans son état précédant la commutation du circuit de courant de charge (LN), ce qui peut être évalué comme un état de défaillance du relais en question,
    - dans lequel un état de défaillance « pontage des contacts trois points » peut apparaître à la suite d'une réponse partielle des moyens de détection de courant du relais défaillant, lorsque le circuit de courant de charge (LN) est mis sous tension, et
    - dans lequel un état de défaillance « pontage des contacts deux points », pour un des relais, peut déclencher fortement les moyens de détection de courant du circuit afficheur associé, lorsque l'autre relais est commuté dans l'état de repos.
  7. Circuit selon l'une quelconque des revendications 1 à 6, dans lequel les moyens de détection de courant sont réalisés sous la forme de diodes électroluminescentes (LED1, LED2), qui se situent en série avec une source de tension auxiliaire (H1, H2) respective et avec deux (G1, Ô1 ; G2, Ö2) des trois points de contact (S1, G1, Ö1 ; S2, G2, Ö2) d'un relais (K1, K2) respectif.
  8. Circuit selon l'une quelconque des revendications 3 à 7,
    dans lequel une première source de tension auxiliaire (H1) du premier circuit afficheur (A1) contient un premier transmetteur (T1), qui peut être sollicité en cadence par une impulsion de tension de courant, et
    dans lequel une deuxième source de tension auxiliaire (H2) du deuxième circuit afficheur (A2) contient un deuxième transmetteur (T2), qui peut être sollicité en cadence par une impulsion de tension de courant.
  9. Circuit selon la revendication 8,
    dans lequel le premier et le deuxième transmetteur (T1, T2) sont réunis structurellement et forment un transformateur comprenant un enroulement primaire commun et deux enroulements secondaires.
  10. Circuit selon l'une quelconque des revendications 3 à 9,
    dans lequel le premier et le deuxième relais électromécaniques (K1, K2) sont raccordés à un circuit de commande.
  11. Circuit selon l'une quelconque des revendications 1 à 10,
    dans lequel un circuit d'optocoupleur relie le circuit afficheur (A1) respectif et le circuit d'évaluation respectif.
EP13709093.2A 2012-03-13 2013-03-12 Circuit à relais de sécurité Active EP2826052B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012004843A DE102012004843A1 (de) 2012-03-13 2012-03-13 Sicherheitsrelaisschaltung
PCT/EP2013/055029 WO2013135719A1 (fr) 2012-03-13 2013-03-12 Circuit à relais de sécurité

Publications (2)

Publication Number Publication Date
EP2826052A1 EP2826052A1 (fr) 2015-01-21
EP2826052B1 true EP2826052B1 (fr) 2017-01-04

Family

ID=47878030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709093.2A Active EP2826052B1 (fr) 2012-03-13 2013-03-12 Circuit à relais de sécurité

Country Status (4)

Country Link
US (1) US20150016007A1 (fr)
EP (1) EP2826052B1 (fr)
DE (1) DE102012004843A1 (fr)
WO (1) WO2013135719A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106291203B (zh) * 2016-09-26 2023-05-02 深圳供电局有限公司 一种10kV永磁机构模拟断路器
FR3063189B1 (fr) * 2017-02-17 2019-06-07 Schneider Electric Industries Sas Procede de controle d'un inverseur de sources et inverseur de sources mettant en oeuvre un tel procede
CN107559229B (zh) * 2017-09-04 2023-10-31 山西潞安环保能源开发股份有限公司王庄煤矿 掘进工作面局扇风机远距离集中监控装置
DE102018217135A1 (de) * 2018-10-08 2019-10-17 Heidelberger Druckmaschinen Ag Potentialfreie Kontaktüberwachungsvorrichtung zur Erfassung des Öffnungszustands eines Schalters
DE102018129899A1 (de) * 2018-11-27 2020-05-28 Pilz Gmbh & Co. Kg Schaltgerät zum gezielten Einschalten und/oder Ausschalten eines elektrischen Verbrauchers, insbesondere zum fehlersicheren Abschalten einer gefährlichen Maschinenanlage
EP3835799B1 (fr) * 2019-12-10 2023-07-26 Schneider Electric Industries SAS Agencement de circuit pour applications de sécurité
JP7095016B2 (ja) * 2020-04-17 2022-07-04 富士電機株式会社 電力変換装置
CN114844491A (zh) * 2021-02-01 2022-08-02 漳州立达信光电子科技有限公司 一种单火线智能开关及单火线多控开关

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010027352A1 (en) * 2000-04-03 2001-10-04 Kunitoshi Morita Control apparatus for robot
EP2256777A2 (fr) * 2009-05-28 2010-12-01 Yamatake Corporation Dispositif de détection de la défaillance d'un contact mobile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9107193U1 (de) * 1991-06-11 1991-08-14 Bosch-Siemens Hausgeräte GmbH, 8000 München Schaltungsanordnung zur Erkennung von Schaltzuständen
US6507283B1 (en) * 1998-05-20 2003-01-14 The Foxboro Company Self-validating output module
EP1202313A1 (fr) 2000-10-23 2002-05-02 Safecom Ag Dispositif de sécurité pour surveiller la position des pièces de contact mécanique
EP2290776A1 (fr) * 2009-03-23 2011-03-02 Abb Ag Relais de surcharge thermique avec fonctions de protection basées sur la tension
US8624601B2 (en) * 2010-10-04 2014-01-07 Enerdel, Inc. System and method for determining physical status of switch elements
TWI422136B (zh) * 2010-10-08 2014-01-01 Ind Tech Res Inst 應用於太陽光電交流模組直流轉交流換器之電路模組

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010027352A1 (en) * 2000-04-03 2001-10-04 Kunitoshi Morita Control apparatus for robot
EP2256777A2 (fr) * 2009-05-28 2010-12-01 Yamatake Corporation Dispositif de détection de la défaillance d'un contact mobile

Also Published As

Publication number Publication date
US20150016007A1 (en) 2015-01-15
DE102012004843A1 (de) 2013-09-19
WO2013135719A1 (fr) 2013-09-19
EP2826052A1 (fr) 2015-01-21

Similar Documents

Publication Publication Date Title
EP2826052B1 (fr) Circuit à relais de sécurité
DE102005055325B3 (de) Sicherheitsschaltvorrichtung zum fehlersicheren Abschalten eines elektrischen Verbrauchers
DE3044047C2 (fr)
DE102013101050B4 (de) Sicherheitsschaltvorrichtung mit sicherem Netzteil
DE102012103015B4 (de) Sicherheitsschaltvorrichtung mit Schaltelement im Hilfskontaktstrompfad
US7623326B2 (en) Method and device for switching off an inductive load in a failsafe manner
WO2006099935A1 (fr) Dispositif de coupure de securite servant a deconnecter un recepteur electrique de maniere sure
WO2016038078A1 (fr) Interrupteur d'arrêt d'urgence adaptable contrôlé
DE69326904T2 (de) Steuerschaltung für induktive Last
DE102015200057A1 (de) Vorrichtung und Verfahren zur Funktionsüberwachung eines Sicherheitsschaltmittels
EP2633738B2 (fr) Ensemble composé d'un appareil de commande de réseau électrique de bord et d'au moins un variateur d'éclairage d'un véhicule automobile
EP2638438B1 (fr) Circuiterie équipée d'un interrupteur d'arrêt d'urgence d'un engin de levage
EP0031471B1 (fr) Dispositif pour contrôler l'état de fonctionnement d'un appareil consommateur électrique
DE3737791C2 (fr)
EP2461341A1 (fr) Module de commutation protégé contre les erreurs et procédé de fonctionnement
EP1308803B1 (fr) Système de diagnostic d'alimentation
EP2876509B1 (fr) Commande de sécurité
EP0500201B1 (fr) Circuit pour la surveillance de lampes de signalisation alimentés en courant alternatif
EP0432623B1 (fr) Circuit de surveillance du fonctionnement de lampes à double filament dans des installations de signalisation lumineuse
DE3744873C2 (en) Fail-safe error-protected load circuit
DE2055070C3 (de) Schaltungsanordnung zum überwachen des ordmingsgerechten Betriebszustandes von Wechselstromkreisen durch Uberwachungsrelais
DE3434474C2 (de) Schaltungsanordnung zur Geschwindigkeitsüberwachung für zumindest einen Motor
DE102011013886A1 (de) Vorrichtung zum automatisierten Steuern einer technischen Anlage
DE9012641U1 (de) Schaltung zur Funktionsüberwachung von Doppelfadenlampen in Lichtsignalen
DE1605428C (de) Schaltungsanordnung zum Prüfen von relaisüberwachten Signalstromkreisen, insbesondere Lichtsignalstromkreisen im Eisenbahnsicherungswesen, auf Fremdspannungseinfall

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141010

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20151022

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160721

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 859976

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013005971

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: MP

Effective date: 20170104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170504

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170404

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170504

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170404

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013005971

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

26N No opposition filed

Effective date: 20171005

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170404

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170312

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170404

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170312

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 859976

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180312

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170104

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230424

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240529

Year of fee payment: 12