EP1259970A1 - Ensemble de commutation sur, ensemble de commande sur et systeme d'ensembles - Google Patents

Ensemble de commutation sur, ensemble de commande sur et systeme d'ensembles

Info

Publication number
EP1259970A1
EP1259970A1 EP01913648A EP01913648A EP1259970A1 EP 1259970 A1 EP1259970 A1 EP 1259970A1 EP 01913648 A EP01913648 A EP 01913648A EP 01913648 A EP01913648 A EP 01913648A EP 1259970 A1 EP1259970 A1 EP 1259970A1
Authority
EP
European Patent Office
Prior art keywords
connection
unit
switching
module
switch
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
EP01913648A
Other languages
German (de)
English (en)
Other versions
EP1259970B1 (fr
Inventor
Werner Krämer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1259970A1 publication Critical patent/EP1259970A1/fr
Application granted granted Critical
Publication of EP1259970B1 publication Critical patent/EP1259970B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01H47/002—Monitoring or fail-safe circuits
    • H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit

Definitions

  • the present invention relates to a switching module with a basic actuator, an additional actuator and a control unit,
  • At least one input connection can be electrically conductively connected to at least one output connection and the input connection is electrically separated from the output connection as soon as at least one of the actuators is deactivated,
  • Electrical energy supply can be deactivated
  • the switch assembly has a supply and a return line connection for supplying electrical energy to the switch assembly and a supply line electrically connected to the base actuator for supplying electrical energy to the base actuator.
  • It also relates to a safe control module with an evaluation unit and a first shutdown unit, wherein a first shutdown signal can be fed to the evaluation unit via a first input channel,
  • the first shutdown unit can be safely controlled by the evaluation unit
  • a first output connection can be electrically separated from an input connection by means of the first switch-off unit
  • the control module has at least a second output connection.
  • the present invention also relates to a module system with a generic safe control module and at least one generic safe switching assembly, wherein at least one of the output connections of the control assembly is electrically conductively connected to the supply connection of the switch assembly via a connecting line
  • the additional actuator in the switching module is designed as a circuit breaker. It is not activated by the control unit, but triggers automatically in the event of overcurrent and / or overvoltage.
  • the basic actuator is supplied with electrical energy by the control module via the supply line and the return line provided
  • a feed actuator (usually a protection) is connected in series with the basic actuator.
  • the feed actuator is separated from the switch module and is supplied with electrical energy by the control module but a separate supply line and a separate return line
  • the basic actuator and the supply actuator have auxiliary contacts electrical circuit guaranteed
  • the object of the present invention is to further develop the switch assembly, the control assembly and the assembly system in such a way that a flexible, safe shutdown system is created in a simple and inexpensive manner.
  • the present invention is based on the idea that
  • the switch module as a safe switch module so that the wiring that is then no longer required for the safety function can be used to set up several mutually independent energy supply circuits.
  • control unit is designed as a safe control unit to which an actual and a target activation state of the basic actuator are supplied, that the switching module has at least one second supply connection for supplying electrical energy,
  • That the switch assembly has a connecting element, by means of which exactly one of the supply connections can be connected to the supply line in an electrically conductive manner, and
  • control unit deactivates the additional actuator at least when the basic actuator remains activated despite the interrupted energy supply to the basic actuator.
  • the task for the control module is achieved in that the second output connection remains electrically conductively connected to the input connection when the first output connection is separated from the input connection.
  • the connecting element can be designed, for example, as a jumper or as a switch.
  • the additional actuator can be constructed analogously to the basic actuator.
  • the additional actuator maintains its state when electrical energy is not supplied, can be deactivated by supplying electrical energy, and remains activated when the basic actuator is properly deactivated. Because in this case, the circuit breaker, which is present on the switch module anyway, only needs to be slightly modified.
  • Circuit breakers can usually only be activated mechanically. However, this is not a disadvantage.
  • the additional actuator is only deactivated if the basic actuator could not be deactivated. In this case, the basic actuator must be replaced or repaired anyway. The activation of the additional actuator can also take place. Alternatively, it is also possible for the additional actuator to be activated by supplying electrical energy.
  • the switch module has four supply connections for supplying electrical energy to the switch module, it can be used in existing busbar systems. So these can still be used.
  • the connection of the switch assembly is particularly simple.
  • the control unit can be used for operational switching of the basic actuator. If the evaluation unit can be supplied with a second switch-off signal via a second input channel and the control module has a second switch-off unit which can be controlled by the evaluation unit independently of the first switch-off unit and by means of which the second output connection can be electrically isolated from the input connection , two groups of circuits can be safely disconnected separately using the control module.
  • the second output connection is inseparably connected to the input connection.
  • unsafe circuits can be supplied with electrical energy via the control module
  • control module has further output connections and further switch-off units which can be controlled by the evaluation unit independently of one another and independently of the first switch-off unit, and possibly also independently of the second switch-off unit, and by means of which the further output connections are electrically connected individually from the input connection are separable
  • the assembly system is particularly simple.
  • a safe switching module 1 has a basic actuator 2, an additional actuator 3 and a safe control unit 4.
  • safe is to be understood in the sense of fault safety in the sense of EN 954-1, ie meaning at least 2-of-2 redundancy.
  • the basic actuator 2 is designed as an electromagnetic switching device, for. B. as a contactor.
  • the basic actuator 2 can thus be activated when it is functioning properly by supplying electrical energy and can be deactivated by not supplying electrical energy.
  • the additional actuator 3 is designed as a modified circuit breaker. It maintains a state when electrical energy is not supplied. It can be deactivated by supplying electrical energy. The additional actuator 3 can be activated either by supplying electrical energy or by supplying mechanical energy. In any case, the additional actuator 3 remains activated when the basic actuator 2 is deactivated properly.
  • a load 5 can be connected to a three-phase network 6 by means of the actuators 2, 3.
  • the load 5 is connected to output connections 7 of the switching module 1, the three-phase network 6 to input connections 8 of the switching module 1.
  • the actuators 2, 3 are electrically connected in series.
  • the input connections 8 and the output connections 7 are therefore only electrically connected to one another when both actuators 2, 3 are activated. If, on the other hand, one or both actuators 2, 3 is deactivated, the input connections 8 are electrically separated from the output connections 7.
  • the switch assembly 1 is arranged in a housing 9.
  • a multipole connector 10 is arranged on the rear of the housing 9.
  • the connector 10 has four supply connections 11 and a return connection 12. Electrical energy can be supplied to the switching module 1 by means of the supply connections 11 and the return line connection 12.
  • the electrical energy is supplied to the switching module 1 via connecting lines 13, which are designed as a busbar system.
  • the sequence of the individual connecting lines 13 is always shown in FIGS. 1 to 5 the same
  • the switching module 1 also has a supply line 14.
  • the supply line 14 is connected to the basic actuator 2 in an electrically conductive manner and serves to supply electrical energy to the basic actuator 2.
  • the switching module 1 also has a connecting element 15.
  • the connecting element 15 is exactly one of the supply connections 11 , here the uppermost one of the supply connections 11, can be connected in an electrically conductive manner to the supply line 14.
  • the connecting element 15 is designed according to FIG. 1 as a plug-in bridge
  • the switching module 1 has further supply connections 16, by means of which the control unit 4 can be supplied with electrical energy.
  • the further supply connections 16 are connected in an electrically conductive manner to further connection lines 17 not mandatory
  • the switching module 1 also has a signal connection 18.
  • the control unit 4 can be supplied with a desired activation state for the basic actuator 2 via the signal connection 18
  • control unit 4 controls a switching element 19 which is arranged in the supply line 14. speaking] activated or deactivated according to the activation state of the switching element 19.
  • the basic actuator 2 has an auxiliary contact 20.
  • the switching state of the auxiliary contact 20 is detected by the control unit 4 via monitoring lines 21.
  • the control unit 4 is also supplied with the actual activation state of the basic actuator 2.
  • the control unit 4 is supplied with the power supply state of the basic actuator 2 via tap lines 22
  • the additional actuator 3 In normal operation of the switching module 1, only the basic actuator 2 is actuated, ie activated or deactivated.
  • the additional actuator 3 generally remains activated in the rule. However, if the basic actuator 2 remains activated despite the interrupted energy supply to the basic actuator 2, the additional actuator 3 is deactivated by the control unit 4 by supplying electrical energy accordingly.
  • An interrupted energy supply to the basic actuator 2 is evaluated if the switching element 19 interrupts the energy supply to the basic actuator 2 and / or the potential difference between the supply line 14 and the return line connection 12, which is detected via the tap line, is below a predetermined minimum voltage.
  • the potential difference between the supply line 14 and the return line connection 12 could also be tapped behind the switching element 19. In this case, an interruption in the energy supply to the basic actuator 2 can all be derived from the tapped potential difference.
  • the switching assembly 1 'according to FIG. 2 essentially corresponds to that according to FIG. 1.
  • the connecting element 15 according to FIG. 2 is not a plug-in bridge, but a mechanical or electronic switch -
  • the supply line 14 is connected to the second supply connection 11 from above via the connecting element 15.
  • FIG. 3 now shows a further switch assembly 23.
  • the switch assembly 23 according to FIG. 3 - in contrast to the switch assemblies 1, l 1 according to FIGS. 1 and 2 - is not designed as a safe switch assembly.
  • the basic actuator 2 is firmly connected to the third of the supply connections 11 and the return line connection 12.
  • the additional actuator 3 cannot be controlled by the control unit 4 here either.
  • the control unit 4 itself does not have to be designed as a safe control unit in the switching module 23 according to FIG. 3.
  • the basic actuators 2 of the switching modules 1, 1 ', 23 according to FIGS. 1 to 3 are supplied with electrical energy via a safe control module 24.
  • a control module 24 is shown schematically in FIG. 4.
  • the safe control module 24 has an evaluation unit 25 and a first, safe shutdown unit 26.
  • the safe first shutdown unit 26 can be safely controlled by the evaluation unit 25.
  • a first output connection 27 is electrically separated from an input connection 28 by means of the first switch-off unit 26.
  • the first output connection 27 can be disconnected from the input connection 28, for example, when the safe evaluation unit 25 is supplied with an emergency stop signal as a first switch-off signal via a first signal transmitter 29 via a first input channel 30.
  • the control module 24 has a second output connection 31.
  • the second output connection 31 remains electrically conductively connected to the input connection 28.
  • the second output connection 31 is even inseparably connected to the input connection 28.
  • the evaluation unit 25 could use a second input channel 32 from a second signal generator 33 but also em emergency stop signal as a second shutdown signal.
  • the control module 24 had to have a second shutdown unit.
  • the second output connection 31 would then be electrically separable from the input connection 28 by means of the second switch-off unit.
  • the separation of the second output connection 31 from the input connection 28 could then take place independently of the separation of the first output connection 27 from the input connection 28.
  • control module 24 also has further output connections 34.
  • Further safe shutdown units 35 are arranged between the further output connections 34 and the input connection 28.
  • the further shutdown units 35 can be controlled independently of one another by the evaluation unit 25, independently of the first shutdown unit 26 and possibly also independently of the second shutdown unit.
  • the further output connections 34 can therefore be electrically separated individually from the input connection 28 by means of the further switch-off units 35.
  • control module has a further input connection 36, which is connected to a return line connection 37.
  • control module 24 also has two E feed connections 39, by means of which the evaluation unit 25 and the further connecting lines 17 can be supplied with electrical energy.
  • the module system consists of a control module 24 according to FIG. 4, a switch module 1 according to FIG. 1, a switch module 1 'according to FIG. 2 and a switch module 23 according to FIG. 3.
  • the output connections 27, 31 and 34 of the control module 24 and the return line connection 37 the control module 24 are connected in an electrically conductive manner via the connecting lines 13 to the corresponding supply connections 11 and the return line connections 12 of the switching modules 1, 1 ', 23.
  • the connecting lines 13 are, if appropriate together with the further connecting lines 17, designed as a busbar system.
  • Safe switching module 1 can be safely switched off via the first output connection. About the disposed immediately below further output terminal 34, the other secure switch assembly is l 1 safely switched off.
  • the unsafe switching module 23 can be supplied with electrical energy via the second output connection 31.
  • the operational switching signals are supplied to the switching modules 1, 1 ', 23 by a control unit 40 via signal lines 41.
  • the input connections 28, 36 and the feed connections 39 of the control module 24 are supplied with supply voltages 42 via feed lines.

Landscapes

  • Keying Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un ensemble de commutation (1, 1') sûr en soi qui comprend deux actionneurs (2, 3) montés en série et une unité de commande (4). Pour que plusieurs circuits de déclenchement séparés l'un de l'autre soient créés, l'ensemble de commutation (1, 1') comporte une borne de ligne de retour (12) et une ligne d'alimentation (14) reliées à l'actionneur de base (2). La ligne d'alimentation (14) peut être reliée de façon électroconductrice à une borne d'alimentation faisant partie d'une pluralité de bornes d'alimentation (11). Dans l'ensemble de commande (24) deux bornes de sortie (27, 31) peuvent être commandées indépendamment l'une de l'autre.
EP01913648A 2000-02-29 2001-02-15 Ensemble de commutation sur, ensemble de commande sur et systeme d'ensembles Expired - Lifetime EP1259970B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10009498A DE10009498A1 (de) 2000-02-29 2000-02-29 Sichere Schaltbaugruppe, sichere Ansteuerbaugruppe und Baugruppensystem
DE10009498 2000-02-29
PCT/DE2001/000572 WO2001065578A1 (fr) 2000-02-29 2001-02-15 Ensemble de commutation sur, ensemble de commande sur et systeme d'ensembles

Publications (2)

Publication Number Publication Date
EP1259970A1 true EP1259970A1 (fr) 2002-11-27
EP1259970B1 EP1259970B1 (fr) 2004-09-22

Family

ID=7632804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01913648A Expired - Lifetime EP1259970B1 (fr) 2000-02-29 2001-02-15 Ensemble de commutation sur, ensemble de commande sur et systeme d'ensembles

Country Status (3)

Country Link
EP (1) EP1259970B1 (fr)
DE (2) DE10009498A1 (fr)
WO (1) WO2001065578A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428215A1 (de) * 1984-07-31 1986-02-13 Siemens AG, 1000 Berlin und 8000 München Anordnung zum ueberwachen einer speicherprogrammierbaren steuereinrichtung
US5243291A (en) * 1991-10-11 1993-09-07 Shinkoh Electric Co., Ltd. Electromagnetic contactor deposition detecting apparatus which detects load current and switch current
SE515261C2 (sv) * 1995-06-12 2001-07-09 Abb Research Ltd Kontaktorutrustning

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0165578A1 *

Also Published As

Publication number Publication date
WO2001065578A1 (fr) 2001-09-07
EP1259970B1 (fr) 2004-09-22
DE10009498A1 (de) 2001-09-20
DE50103751D1 (de) 2004-10-28

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