EP1218907A1 - Actuator unit with at least two actuators and a secure control unit - Google Patents

Actuator unit with at least two actuators and a secure control unit

Info

Publication number
EP1218907A1
EP1218907A1 EP00978940A EP00978940A EP1218907A1 EP 1218907 A1 EP1218907 A1 EP 1218907A1 EP 00978940 A EP00978940 A EP 00978940A EP 00978940 A EP00978940 A EP 00978940A EP 1218907 A1 EP1218907 A1 EP 1218907A1
Authority
EP
European Patent Office
Prior art keywords
control unit
contactors
phase circuit
actuator unit
unit
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
EP00978940A
Other languages
German (de)
French (fr)
Other versions
EP1218907B1 (en
Inventor
Werner Krämer
Martin Meinke
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 EP1218907A1 publication Critical patent/EP1218907A1/en
Application granted granted Critical
Publication of EP1218907B1 publication Critical patent/EP1218907B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 an actuator unit with at least two contactors and a safe control unit,
  • a three-phase circuit with a nominal voltage of at least 380 V can be opened and closed by means of the contactors and the three-phase circuit is opened as soon as at least one of the contactors is deactivated,
  • the control unit can be supplied with an emergency shutdown signal for the three-phase circuit via at least one safe shutdown channel, on the basis of which the control unit opens the three-phase circuit by actuating at least one of the contactors.
  • Such an actuator unit is generally known. It is used in safety-related three-phase circuits to ensure that the three-phase circuit is switched off safely
  • control unit is often arranged far from the contactors. This means that a large number of lines must be laid between the contactors and the control unit. In particular, at least two supply lines and at least one feedback line must be laid per contactor.
  • the object of the present invention is a
  • the object is achieved in that the contactors and the control unit are combined to form an assembly module which can be assembled and disassembled as a unit. This is because both the supply lines and the feedback lines can be hard-wired within the actuator unit.
  • the three-phase circuit can also be firmly connected between the contactors in advance.
  • the wiring effort is further reduced if the emergency switch-off signal can be passed on from the control unit to a further actuator unit via a safe output channel.
  • control unit can be supplied with a control signal for the three-phase circuit via an input channel, on the basis of which the control unit opens or closes the three-phase circuit in accordance with the control signal when the emergency shutdown signal is not present, the actuator unit can also be used for the operational opening and closing of the three-phase circuit.
  • Opening the three-phase circuit is particularly safe if the control unit for opening the three-phase circuit always deactivates all contactors.
  • the actuator unit can also be used in an environment containing splash water and dust.
  • “High degree of protection” means protection at least according to IP 54, better according to IP 65, possibly even according to IP 67.
  • the actuator unit has plug connectors for connecting the contactors to the three-phase circuit, the external wiring of the actuator unit can be carried out very quickly.
  • the connectors are preferably accessible from outside the housing.
  • the actuator unit works particularly reliably. Further advantages and details emerge from the following description of an exemplary embodiment.
  • the schematic diagram shows the
  • an actuator unit A has two contactors 1, 2 and a fail-safe control unit 3.
  • a three-phase circuit 4 can be opened and closed by means of the contactors 1, 2.
  • the contactors 1, 2 are designed such that the three-phase circuit 4 can have a nominal voltage U of up to 1 kV. In particular, the nominal voltage can therefore be 380 V and more.
  • the three-phase circuit 4 is opened as soon as at least one of the contactors 1, 2 is deactivated.
  • the actuator unit A has several safe shutdown channels 5.
  • An emergency shutdown signal for the three-phase circuit 4 can be supplied to the control unit 3 via each of the safe shutdown channels 5.
  • the control unit 3 controls both contactors 1, 2 and deactivates them.
  • both contactors 1, 2 open the three-phase circuit 4.
  • the three-phase circuit 4 is reliably opened even if one of the contactors 1, 2 fails.
  • the control unit 3 also has an input channel 6.
  • a control signal for the three-phase circuit 4 can be supplied to the control unit 3 via the input channel 6. If the emergency shutdown signal is not present, the control unit 3 is therefore able to open or close the three-phase circuit 4 in accordance with the control signal.
  • the contactors 1, 2 and the control unit 3 are combined to form an assembly module 7 which can be assembled and disassembled as a unit.
  • an assembly module 7 which can be assembled and disassembled as a unit.
  • a large part of the internal wiring of the installation module 7 can be pre-connected. Both the wiring effort when connecting the installation module 7 and the risk of incorrect wiring is thus significantly reduced.
  • the actuator unit A has a safe output channel 8. Via the output channel 8, the emergency shutdown signal can be passed on from the control unit 3 to a further actuator unit B, which is shown only schematically in FIG.
  • the structure and the mode of operation of the actuator unit B essentially correspond to that of the actuator unit A.
  • the actuator unit B can also be supplied with a control signal for a three-phase circuit 11 via an input channel 10.
  • the three-phase circuit 11 can also have a rated voltage U of up to 1 kV.
  • the nominal voltage of the three-phase circuit can also be 11 380 V and more.
  • the control signal for the three-phase circuit 11 can be different from the control signal for the three-phase circuit 4.
  • the further actuator unit B also has a safe output channel 12. Via the output channel 12, the emergency shutdown signal can be passed on from the further actuator unit B to a further actuator unit, which is no longer shown in FIG.
  • the actuator unit B In contrast to the actuator unit A, the actuator unit B only has a single safe shutdown channel 13. This is also sufficient for actuator unit B, since it does not have to monitor several safe shutdown channels. Actuator unit A performs this task. The actuator unit B only has to be able to react to an emergency shutdown signal transmitted by the actuator unit A.
  • FIG. 2 shows the mechanical-structural design of the actuator unit A from FIG. 1.
  • the contactors 1, 2 and the control unit 3 are arranged in a housing 14.
  • the housing 14 is designed as a housing 14 with a high degree of protection, by means of which the contactors 1, 2 and the control unit 3 are encapsulated from the environment.
  • "High protection class” means protection at least according to protection class IP 54, better according to protection class IP 65, possibly even according to protection class IP 67.
  • the actuator unit A has plug connectors 15 to 17.
  • the connectors 15 to 17 are accessible from outside the housing 14.
  • the contactors 1, 2 can be connected to the three-phase circuit 4 by means of the plug connector 15.
  • Connector 16 the contactors 1, 2 and the control unit 3 can be supplied with electrical energy.
  • the control unit 3 additional signals, for. B. emergency stop signals and normal control signals. Furthermore, signals can be transmitted to the actuator unit B via the plug connector 17.
  • Locking levers 18 are assigned to connectors 15. Threaded bores 19 are assigned to the plug connector 16. The plug connectors 17 are provided with screw threads 20.
  • the locking levers 18, the threaded bores 19 and the screw threads 20 form holding devices 18 to 20. With them, not shown, mating connectors connected to the connectors 15 to 17 and / or not shown, covers placed on the connectors 15 to 17 against accidental loosening securable.
  • the provision of the housing 14 with the connectors 15 to 17 and also the assignment of the holding devices 18 to 20 to the connectors 15 to 17 is of course possible regardless of the presence and design of the housing 14 as a housing 14 with a high degree of protection.

Abstract

The invention relates to an actuator unit (A) which is provided with at least two contactors (1, 2) and a secure control unit (3). A three-phase circuit (4) with a secondary voltage of at least 380 V is opened as soon as at least one of the contactors (1, 2) is deactivated. The control unit (3) opens the three-phase circuit (4) by controlling at least one of the contactors (1, 2) when an emergency stop signal is transmitted to the control unit (3) via a secure disconnecting channel (5). The contactors (1, 2) and the control unit (3) are combined to an installation module (7) which can be mounted and dismounted as a unit.

Description

Beschreibung description
Aktoreinheit mit mindestens zwei Schützen und einer sicheren AnsteuereinheitActuator unit with at least two contactors and a safe control unit
Die vorliegende Erfindung betrifft eine Aktoreinheit mit mindestens zwei Schützen und einer sicheren Ansteuereinheit,The present invention relates to an actuator unit with at least two contactors and a safe control unit,
- wobei mittels der Schütze ein Drehstromkreis mit einer Nennspannung von mindestens 380 V offen- und schließbar ist und der Drehstromkreis geöffnet wird, sobald mindestens eines der Schütze deaktiviert wird,a three-phase circuit with a nominal voltage of at least 380 V can be opened and closed by means of the contactors and the three-phase circuit is opened as soon as at least one of the contactors is deactivated,
- wobei der Ansteuereinheit über mindestens einen sicheren Abschaltkanal ein Notabschaltsignal für den Drehstromkreis zuführbar ist, aufgrund dessen die Ansteuereinheit durch Ansteuerung mindestens eines der Schütze den Drehstromkreis öffnet .- The control unit can be supplied with an emergency shutdown signal for the three-phase circuit via at least one safe shutdown channel, on the basis of which the control unit opens the three-phase circuit by actuating at least one of the contactors.
Eine derartige Aktoreinheit ist allgemein bekannt. Sie wird bei sicherheitsgerichteten Drehstromkreisen eingesetzt, um eine sichere Notabschaltung des Drehstromkreises auch beiSuch an actuator unit is generally known. It is used in safety-related three-phase circuits to ensure that the three-phase circuit is switched off safely
Versagen eines der Schütze zu gewährleisten.To ensure failure of one of the shooters.
Im Stand der Technik ist die Ansteuereinheit oftmals weit von den Schützen entfernt angeordnet. Somit ist eine Vielzahl von Leitungen zwischen den Schützen und der Ansteuereinheit zu verlegen. Insbesondere müssen pro Schütz mindestens zwei Versorgungsleitungen und mindestens eine Rückmeldeleitung verlegt werden.In the prior art, the control unit is often arranged far from the contactors. This means that a large number of lines must be laid between the contactors and the control unit. In particular, at least two supply lines and at least one feedback line must be laid per contactor.
Die Aufgabe der vorliegenden Erfindung besteht darin, eineThe object of the present invention is a
Aktoreinheit zu schaffen, bei der eine sichere Notabschaltung des Drehstromkreises bei möglichst geringem Verdrahtungsaufwand gewährleistet ist.To create an actuator unit in which a safe emergency shutdown of the three-phase circuit is ensured with the least possible wiring effort.
Die Aufgabe wird dadurch gelöst, daß die Schütze und die AnSteuereinheit zu einem als Einheit montier- und demontierbaren Einbaumodul zusammengefaßt sind. Denn dann können sowohl die Versorgungsleitungen als auch die Rückmeldeleitungen innerhalb der Aktoreinheit festverdrahtet vorgegeben sein. Auch der Drehstromkreis kann zwischen den Schützen bereits vorab fest angeschlossen sein.The object is achieved in that the contactors and the control unit are combined to form an assembly module which can be assembled and disassembled as a unit. This is because both the supply lines and the feedback lines can be hard-wired within the actuator unit. The three-phase circuit can also be firmly connected between the contactors in advance.
Bei mehreren notabzuschaltenden Aktoreinheiten verringert sich der Verdrahtungsaufwand noch weiter, wenn das Notabschaltsignal von der Ansteuereinheit über einen sicheren Ausgangskanal an eine weitere Aktoreinheit weitergebbar ist.In the case of several actuator units to be switched off in an emergency, the wiring effort is further reduced if the emergency switch-off signal can be passed on from the control unit to a further actuator unit via a safe output channel.
Wenn der Ansteuereinheit über einen Eingangskanal ein Ansteu- ersignal für den Drehstromkreis zuführbar ist, aufgrund dessen die Ansteuereinheit bei Nichtvorliegen des Notabschaltsignals den Drehstromkreis entsprechend dem Ansteuersignal öffnet bzw. schließt, ist die Aktoreinheit auch zum betriebsmäßigen Öffnen und Schließen des Drehstromkreises einsetzbar.If the control unit can be supplied with a control signal for the three-phase circuit via an input channel, on the basis of which the control unit opens or closes the three-phase circuit in accordance with the control signal when the emergency shutdown signal is not present, the actuator unit can also be used for the operational opening and closing of the three-phase circuit.
Das Öffnen des Drehstromkreises ist besonders sicher, wenn die Ansteuereinheit zum Öffnen des Drehstromkreises stets alle Schütze deaktiviert.Opening the three-phase circuit is particularly safe if the control unit for opening the three-phase circuit always deactivates all contactors.
Wenn die Schütze und die Ansteuereinheit von einem Gehäuse in hoher Schutzart abkapselt sind, ist die Aktoreinheit auch in spritzwasserhaltiger und staubbelasteter Umgebung einsetzbar. „Hohe Schutzart" bedeutet dabei Schutz mindestens nach IP 54, besser nach IP 65, evtl. sogar nach IP 67.If the contactors and the control unit are encapsulated by a housing with a high degree of protection, the actuator unit can also be used in an environment containing splash water and dust. "High degree of protection" means protection at least according to IP 54, better according to IP 65, possibly even according to IP 67.
Wenn die Aktoreinheit Steckverbinder zum Verbinden der Schütze mit dem Drehstromkreis aufweist, ist die externe Ver- drahtung der Aktoreinheit sehr schnell zu bewerkstelligen.If the actuator unit has plug connectors for connecting the contactors to the three-phase circuit, the external wiring of the actuator unit can be carried out very quickly.
Die Steckverbinder sind vorzugsweise von außerhalb des Gehäuses zugänglich.The connectors are preferably accessible from outside the housing.
Wenn die Steckverbinder Haltevorrichtungen zum Sichern von mit den Steckverbindern verbundenen Gegensteckverbindern aufweisen, arbeitet die Aktoreinheit besonders zuverlässig. Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels . Dabei zeigen in Prinzipdarstellung dieIf the connectors have holding devices for securing mating connectors connected to the connectors, the actuator unit works particularly reliably. Further advantages and details emerge from the following description of an exemplary embodiment. The schematic diagram shows the
FIG 1 und 2 je eine Aktoreinheit.1 and 2 each have an actuator unit.
Gemäß FIG 1 weist eine Aktoreinheit A zwei Schütze 1, 2 und eine fehlersichere Ansteuereinheit 3 auf. Mittels der Schütze 1, 2 ist ein Drehstromkreis 4 offen- und schließbar. Die Schütze 1, 2 sind derart ausgelegt, daß der Drehstromkreis 4 eine Nennspannung U von bis zu 1 kV aufweisen kann. Insbesondere kann die Nennspannung also 380 V und mehr betragen. Der Drehstromkreis 4 wird geöffnet, sobald mindestens eines der Schütze 1, 2 deaktiviert wird.According to FIG. 1, an actuator unit A has two contactors 1, 2 and a fail-safe control unit 3. A three-phase circuit 4 can be opened and closed by means of the contactors 1, 2. The contactors 1, 2 are designed such that the three-phase circuit 4 can have a nominal voltage U of up to 1 kV. In particular, the nominal voltage can therefore be 380 V and more. The three-phase circuit 4 is opened as soon as at least one of the contactors 1, 2 is deactivated.
Die Aktoreinheit A weist mehrere sichere Abschaltkanäle 5 auf. Über jeden der sicheren Abschaltkanäle 5 kann der AnSteuereinheit 3 ein Notabschaltsignal für den Drehstromkreis 4 zugeführt werden. Sobald der Ansteuereinheit 3 über einen der sicheren Abschaltkanäle 5 ein Notabschaltsignal zugeführt wird, steuert die Ansteuereinheit 3 beide Schütze 1, 2 an und deaktiviert sie. Dadurch öffnen beide Schütze 1, 2 den Drehstromkreis 4. Somit wird der Drehstromkreis 4 auch bei Versagen eines der Schütze 1, 2 sicher geöffnet.The actuator unit A has several safe shutdown channels 5. An emergency shutdown signal for the three-phase circuit 4 can be supplied to the control unit 3 via each of the safe shutdown channels 5. As soon as an emergency shutdown signal is supplied to the control unit 3 via one of the safe shutdown channels 5, the control unit 3 controls both contactors 1, 2 and deactivates them. As a result, both contactors 1, 2 open the three-phase circuit 4. Thus, the three-phase circuit 4 is reliably opened even if one of the contactors 1, 2 fails.
Der Ansteuereinheit 3 weist ferner einen Eingangskanal 6 auf. Über den Eingangskanal 6 ist der Ansteuereinheit 3 ein An- steuersignal für den Drehstromkreis 4 zuführbar. Bei Nicht- vorliegen des Notabschaltsignals ist die Ansteuereinheit 3 daher in der Lage, den Drehstromkreis 4 entsprechend dem An- steuersignal zu öffnen bzw. zu schließen.The control unit 3 also has an input channel 6. A control signal for the three-phase circuit 4 can be supplied to the control unit 3 via the input channel 6. If the emergency shutdown signal is not present, the control unit 3 is therefore able to open or close the three-phase circuit 4 in accordance with the control signal.
Gemäß FIG 1 sind die Schütze 1, 2 und die Ansteuereinheit 3 zu einem als Einheit montier- und demontierbaren Einbaumodul 7 zusammengefaßt. Dadurch kann ein Großteil der internen Verdrahtung des Einbaumoduls 7 fest vorverbunden sein. Sowohl der Verdrahtungsaufwand beim Anschließen des Einbaumoduls 7 als auch die Gefahr von Fehlverdrahungen ist somit deutlich verringert .According to FIG. 1, the contactors 1, 2 and the control unit 3 are combined to form an assembly module 7 which can be assembled and disassembled as a unit. As a result, a large part of the internal wiring of the installation module 7 can be pre-connected. Both the wiring effort when connecting the installation module 7 and the risk of incorrect wiring is thus significantly reduced.
Die Aktoreinheit A weist einen sicheren Ausgangskanal 8 auf. Über den Ausgangskanal 8 kann das Notabschaltsignal von der Ansteuereinheit 3 an eine weitere, in FIG 1 nur schematisch dargestellte Aktoreinheit B weitergegeben werden.The actuator unit A has a safe output channel 8. Via the output channel 8, the emergency shutdown signal can be passed on from the control unit 3 to a further actuator unit B, which is shown only schematically in FIG.
Der Aufbau und die Funktionsweise der Aktoreinheit B entspre- chen im wesentlichen denen der Aktoreinheit A. Insbesondere ist auch der Aktoreinheit B über einen Eingangskanal 10 ein Ansteuersignal für einen Drehstromkreis 11 zuführbar. Auch der Drehstromkreis 11 kann eine Nennspannung U von bis zu 1 kV aufweisen. Insbesondere kann also auch hier die Nennspan- nung des Drehstromkreises 11 380 V und mehr betragen.The structure and the mode of operation of the actuator unit B essentially correspond to that of the actuator unit A. In particular, the actuator unit B can also be supplied with a control signal for a three-phase circuit 11 via an input channel 10. The three-phase circuit 11 can also have a rated voltage U of up to 1 kV. In particular, the nominal voltage of the three-phase circuit can also be 11 380 V and more.
Das Ansteuersignal für den Drehstromkreis 11 kann vom Ansteuersignal für den Drehstromkreis 4 verschieden sein. Ferner weist auch die weitere Aktoreinheit B einen sicheren Aus- gangskanal 12 auf. Über den Ausgangskanal 12 kann das Notab- schaltsignal von der weiteren Aktoreinheit B an eine weitere, in FIG 1 nicht mehr dargestellte Aktoreinheit weitergegeben werden .The control signal for the three-phase circuit 11 can be different from the control signal for the three-phase circuit 4. Furthermore, the further actuator unit B also has a safe output channel 12. Via the output channel 12, the emergency shutdown signal can be passed on from the further actuator unit B to a further actuator unit, which is no longer shown in FIG.
Im Gegensatz zur Aktoreinheit A weist die Aktoreinheit B aber nur einen einzigen sicheren Abschaltkanal 13 auf. Dies ist bei der Aktoreinheit B auch hinreichend, da diese nicht mehrere sichere Abschaltkanäle überwachen muß. Denn diese Aufgabe wird von der Aktoreinheit A wahrgenommen. Die Aktorein- heit B muß nur auf ein von von der Aktoreinheit A weitergegebenes Notabschaltsignal reagieren können.In contrast to the actuator unit A, the actuator unit B only has a single safe shutdown channel 13. This is also sufficient for actuator unit B, since it does not have to monitor several safe shutdown channels. Actuator unit A performs this task. The actuator unit B only has to be able to react to an emergency shutdown signal transmitted by the actuator unit A.
Das Vorsehen nur eines einzigen sicheren Absehaltkanals 13 für die Aktoreinheit B verringert auch den Verdrahtungsauf- wand. Denn bereits zum Anschließen nur eines Notsignalauslösers 9 an die Aktoreinheit A muß je ein sicherer Abschaltkanal 5 sechs Anschlüsse aufweisen. Zum Weitergeben eines Not- abschaltsignals von der Aktoreinheit A an die Aktoreinheit B müssen der sichere Ausgangskanal 8 der Aktoreinheit A und der sichere Abschaltkanal 13 der Aktoreinheit B aber nur je zwei Anschlüsse aufweisen.The provision of only a single safe retention channel 13 for the actuator unit B also reduces the wiring effort. Because even for connecting only one emergency signal trigger 9 to the actuator unit A, a safe shutdown channel 5 must have six connections. To pass on an emergency Shutdown signal from the actuator unit A to the actuator unit B, however, the safe output channel 8 of the actuator unit A and the safe shutdown channel 13 of the actuator unit B only have two connections each.
FIG 2 zeigt nun die mechanisch-konstruktive Ausgestaltung der Aktoreinheit A von FIG 1.2 shows the mechanical-structural design of the actuator unit A from FIG. 1.
Gemäß FIG 2 ist sind die Schütze 1, 2 und die Ansteuereinheit 3 in einem Gehäuse 14 angeordnet. Das Gehäuse 14 ist als Gehäuse 14 hoher Schutzart ausgebildet, mittels dessen die Schütze 1, 2 und die Ansteuereinheit 3 von der Umgebung abkapselt werden. „Hohe Schutzart" bedeutet dabei Schutz mindestens nach Schutzart IP 54, besser nach Schutzart IP 65, evtl. sogar nach Schutzart IP 67.According to FIG 2, the contactors 1, 2 and the control unit 3 are arranged in a housing 14. The housing 14 is designed as a housing 14 with a high degree of protection, by means of which the contactors 1, 2 and the control unit 3 are encapsulated from the environment. "High protection class" means protection at least according to protection class IP 54, better according to protection class IP 65, possibly even according to protection class IP 67.
Die Aktoreinheit A weist gemäß FIG 3 Steckverbinder 15 bis 17 auf. Die Steckverbinder 15 bis 17 sind von außerhalb des Gehäuses 14 zugänglich. Mittels der Steckverbinder 15 sind die Schütze 1, 2 mit dem Drehstromkreis 4 verbindbar. Mittels desAccording to FIG. 3, the actuator unit A has plug connectors 15 to 17. The connectors 15 to 17 are accessible from outside the housing 14. The contactors 1, 2 can be connected to the three-phase circuit 4 by means of the plug connector 15. By means of the
Steckverbinders 16 ist den Schützen 1, 2 und der Ansteuereinheit 3 elektrische Energie zuführbar. Mittels der Steckverbinder 17 sind der Ansteuereinheit 3 weitere Signale, z. B. Notaussignale und normale Steuersignale, zuführbar. Ferner sind über die Steckverbinder 17 Signale an die Aktoreinheit B übermittelbar .Connector 16, the contactors 1, 2 and the control unit 3 can be supplied with electrical energy. By means of the connector 17, the control unit 3 additional signals, for. B. emergency stop signals and normal control signals. Furthermore, signals can be transmitted to the actuator unit B via the plug connector 17.
Den Steckverbindern 15 sind Verriegelungshebel 18 zugeordnet. Dem Steckverbinder 16 sind Gewindebohrungen 19 zugeordnet. Die Steckverbinder 17 sind mit Schraubgewinden 20 versehen.Locking levers 18 are assigned to connectors 15. Threaded bores 19 are assigned to the plug connector 16. The plug connectors 17 are provided with screw threads 20.
Die Verriegelungshebel 18, die Gewindebohrungen 19 und die Schraubgewinde 20 bilden Haltevorrichtungen 18 bis 20. Mit ihnen sind nicht dargestellte, mit den Steckverbindern 15 bis 17 verbundene Gegensteckverbinder und/oder nicht dargestell- te, auf die Steckverbinder 15 bis 17 aufgesetzte Abdeckungen gegen versehentliches Lösen sicherbar. Das Versehen des Gehäuses 14 mit den Steckverbindern 15 bis 17 und auch das Zuordnen der Haltevorrichtungen 18 bis 20 zu den Steckverbindern 15 bis 17 ist selbstverständlich unabhängig vom Vorhandensein und von der Ausbildung des Gehäuses 14 als Gehäuse 14 hoher Schutzart möglich. The locking levers 18, the threaded bores 19 and the screw threads 20 form holding devices 18 to 20. With them, not shown, mating connectors connected to the connectors 15 to 17 and / or not shown, covers placed on the connectors 15 to 17 against accidental loosening securable. The provision of the housing 14 with the connectors 15 to 17 and also the assignment of the holding devices 18 to 20 to the connectors 15 to 17 is of course possible regardless of the presence and design of the housing 14 as a housing 14 with a high degree of protection.

Claims

Patentansprüche claims
1. Aktoreinheit mit mindestens zwei Schützen (1, 2) und einer sicheren Ansteuereinheit (3), - wobei mittels der Schütze (1, 2) ein Drehstromkreis (4) mit einer Nennspannung von mindestens 380 V offen- und schließbar ist und der Drehstromkreis (4) geöffnet wird, sobald mindestens eines der Schütze (1, 2) deaktiviert wird, - wobei der Ansteuereinheit (3) über mindestens einen siche- ren Abschaltkanal (5) ein Notabschaltsignal für den Drehstromkreis (4) zuführbar ist, aufgrund dessen die Ansteuereinheit (3) durch Ansteuerung mindestens eines der Schütze (1, 2) den Drehstromkreis (4) öffnet, d a d u r c h g e k e n n z e i c h n e t , daß die Schütze (1, 2) und die Ansteuereinheit (3) zu einem als Einheit montier- und demontierbaren Einbaumodul (7) zusammengefaßt sind.1. Actuator unit with at least two contactors (1, 2) and a safe control unit (3), - by means of the contactors (1, 2) a three-phase circuit (4) with a nominal voltage of at least 380 V can be opened and closed and the three-phase circuit (4) is opened as soon as at least one of the contactors (1, 2) is deactivated, - the control unit (3) being able to be supplied with an emergency shutdown signal for the three-phase circuit (4) via at least one safe shutdown channel (5), on the basis of which the Control unit (3) by controlling at least one of the contactors (1, 2) opens the three-phase circuit (4), characterized in that the contactors (1, 2) and the control unit (3) form a built-in and removable unit (7) are summarized.
2. Aktoreinheit nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das Notabschaltsignal von der Ansteuereinheit (3) über einen sicheren Ausgangskanal (8) an eine weitere Aktoreinheit (B) weitergebbar ist.2. Actuator unit according to claim 1, d a d u r c h g e k e n e z e i c h n e t that the emergency shutdown signal from the control unit (3) via a safe output channel (8) can be passed on to another actuator unit (B).
3. Aktoreinheit nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß der Ansteuereinheit (3) über einen Eingangskanal (6) ein Ansteuersignal für den Drehstromkreis (4) zuführbar ist, aufgrund dessen die Ansteuereinheit (3) bei Nichtvorliegen des Notabschaltsignals den Drehstromkreis (4) entsprechend dem Ansteuersignal öffnet bzw. schließt.3. Actuator unit according to claim 1 or 2, characterized in that the control unit (3) via an input channel (6) a control signal for the three-phase circuit (4) can be fed, due to which the control unit (3) in the absence of the emergency shutdown signal, the three-phase circuit (4) opens or closes according to the control signal.
4. Aktoreinheit nach Anspruch 1, 2 oder 3, d a d u r c h g e k e n n z e i c h n e t , daß die Ansteuereinheit (3) zum Öffnen des Drehstromkreises (4) stets alle Schütze (1, 2) deaktiviert. 4. Actuator unit according to claim 1, 2 or 3, characterized in that the control unit (3) for opening the three-phase circuit (4) always deactivates all contactors (1, 2).
5. Aktoreinheit nach einem der obigen Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß die Schütze (1, 2) und die Ansteuereinheit (3) von einem Gehäuse (14) in hoher Schutzart abkapselt sind.5. Actuator unit according to one of the above claims, that the contactors (1, 2) and the control unit (3) are encapsulated by a housing (14) with a high degree of protection.
6. Aktoreinheit nach einem der obigen Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß sie Steckverbinder (15) zum Verbinden der Schütze (1, 2) mit dem Drehstromkreis (4) aufweist.6. Actuator unit according to one of the above claims, d a d u r c h g e k e n n z e i c h n e t that it has connectors (15) for connecting the contactors (1, 2) with the three-phase circuit (4).
7. Aktoreinheit nach Anspruch 5 und 6, d a d u r c h g e k e n n z e i c h n e t , daß die Steckverbinder (15) von außerhalb des Gehäuses (14) zugänglich sind.7. Actuator unit according to claim 5 and 6, so that the connectors (15) are accessible from outside the housing (14).
8. Aktoreinheit nach Anspruch 6 oder 7, d a d u r c h g e k e n n z e i c h n e t , daß die Steckverbinder (15) Haltevorrichtungen (18) zum Sichern von mit den Steckverbindern (15) verbundenen Gegen- Steckverbindern aufweisen. 8. Actuator unit according to claim 6 or 7, so that the connectors (15) have holding devices (18) for securing mating connectors connected to the connectors (15).
EP00978940A 1999-10-08 2000-09-18 Actuator unit with at least two actuators and a secure control unit Expired - Lifetime EP1218907B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19948633 1999-10-08
DE19948633 1999-10-08
PCT/DE2000/003235 WO2001027954A1 (en) 1999-10-08 2000-09-18 Actuator unit with at least two actuators and a secure control unit

Publications (2)

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EP1218907A1 true EP1218907A1 (en) 2002-07-03
EP1218907B1 EP1218907B1 (en) 2006-03-01

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EP00978940A Expired - Lifetime EP1218907B1 (en) 1999-10-08 2000-09-18 Actuator unit with at least two actuators and a secure control unit

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EP (1) EP1218907B1 (en)
JP (1) JP4298199B2 (en)
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WO (1) WO2001027954A1 (en)

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JP2003511841A (en) 2003-03-25
DE50012322D1 (en) 2006-04-27
WO2001027954A1 (en) 2001-04-19
US7262519B1 (en) 2007-08-28
JP4298199B2 (en) 2009-07-15
EP1218907B1 (en) 2006-03-01

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