EP1218908A1 - Aktoreinheit mit einem grundaktor, einem zusatzaktor und einer ansteuereinheit - Google Patents
Aktoreinheit mit einem grundaktor, einem zusatzaktor und einer ansteuereinheitInfo
- Publication number
- EP1218908A1 EP1218908A1 EP00978941A EP00978941A EP1218908A1 EP 1218908 A1 EP1218908 A1 EP 1218908A1 EP 00978941 A EP00978941 A EP 00978941A EP 00978941 A EP00978941 A EP 00978941A EP 1218908 A1 EP1218908 A1 EP 1218908A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- basic
- control unit
- additional
- activation state
- 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
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
- Actuator unit with a basic actuator, an additional actuator and a control unit
- the present invention relates to an actuator unit with a basic actuator, an additional actuator and a control unit,
- a useful circuit can be opened and closed by means of the actuators and the useful circuit is opened as soon as at least one of the actuators is deactivated,
- the basic actuator can be activated by supplying electrical energy and deactivated by not supplying electrical energy if it functions properly,
- the control unit deactivates the additional actuator when the actual activation state of the basic actuator deviates from a target activation state of the basic actuator.
- Such an actuator unit is generally known. It is used in particular as a so-called electrical load feeder.
- the basic actuator and the additional actuator are each designed as contactors. Both contactors therefore consume electricity when activated. The same applies to the design of the actuators as solenoid valves.
- the object of the present invention is to provide an actuator unit which is activated with only one
- the additional actuator can be deactivated by supplying electrical energy and the control unit only deactivates the additional actuator if the actual activation state of the basic actuator deviates from the target activation state of the basic actuator. Because then the additional actuator is only deactivated if the basic actuator is defective.
- the additional actuator can alternatively be activated by manual actuation or by supplying electrical energy.
- An example of an additional actuator that can be deactivated by supplying electrical energy and that can only be reactivated by manual actuation is a circuit breaker.
- the additional actuator can also be reactivated by supplying electrical energy, it is designed as a bistable element, so to speak as a bistable circuit breaker. In this case, it is particularly possible to also use the additional actuator from
- the actuator unit works even more reliably if the control unit is supplied with an actual activation state of the additional actuator.
- the actual activation state of the basic actuator is preferably reported to a unit higher than the control unit.
- the basic actuator can be activated and deactivated via the control unit. Alternatively, direct control of the basic actuator via a higher-level unit is also possible.
- the control unit can be permanently supplied with electrical energy.
- the control unit it is also possible for the control unit to be supplied with electrical energy only if the target activation state of the basic actuator corresponds to an activated basic actuator.
- the control unit when the basic actuator is deactivated, the control unit must be briefly supplied with energy via an energy buffer.
- the energy buffer must of course be designed such that when the basic actuator is deactivated, it is still possible to check the basic actuator for deactivation and, if necessary, to deactivate the additional actuator.
- the actuator unit is particularly compact if the basic actuator, the additional actuator and the control unit are arranged in a common housing.
- 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 external wiring of the actuator unit can be accomplished very quickly.
- the connectors are preferably accessible from outside the housing. If the plug connectors have holding devices for securing mating plug connectors connected to the plug connectors and / or of covers placed on the plug connectors, the actuator unit works particularly reliably.
- an actuator unit has a basic actuator 1, an additional actuator 2 and a fail-safe control unit 3.
- a useful circuit 4 can be opened and closed by means of the actuators 1, 2. The useful circuit 4 is opened as soon as at least one of the actuators 1, 2 is deactivated.
- the basic actuator 1 can be supplied with electrical energy from a fail-safe controller 5 via relays 6 and supply lines 7. If the
- Basic actuator 1 can be activated by supplying electrical energy and deactivated by not supplying electrical energy.
- the basic actuator 1 can e.g. B. be designed as a contactor or relay.
- the additional actuator 2 can be deactivated by supplying electrical energy.
- the additional actuator 2 can be designed as an electrical circuit breaker. In this case, the additional actuator 2 can only be reactivated by manual actuation. Alternatively, it would also be possible to use the
- additional actuator 2 such that it can also be reactivated by supplying electrical energy.
- it would be designed as a bistable element, so to speak as a bistable electrical circuit breaker.
- the useful circuit 4 is an electrical useful circuit.
- the useful circuit 4 could also be a hydraulic one or pneumatic useful circuit.
- the actuators 1, 2 would be designed as hydraulic or pneumatic solenoid valves.
- a supply voltage U present on the supply lines 7 is tapped by the control unit 3.
- the basic actuator 1 is thereby monitored for the supply of electrical energy. If the supply voltage U exceeds a limit voltage, the control unit 3 determines as the target activation state of the basic actuator 1 that it should be activated. Otherwise, the control unit 3 determines a deactivated basic actuator 1 as the target activation state of the basic actuator 1. The control unit 3 thus determines the target activation state of the basic actuator 1 from the supply of electrical energy to the basic actuator 1.
- the control unit 3 is also supplied with an actual activation state of the basic actuator 1. As shown in FIG. 1, this can be done, for example, by assigning the base actuator 1 to a positively driven switch 8, which is switched together with the actuation of the base actuator 1. Alternatively, the switching state of the useful circuit 4 could also be monitored, for example.
- the control unit 3 compares the actual activation state of the basic actuator 1 with the target activation state of the basic actuator 1. If the activation states deviate from one another, the control unit 3 deactivates the additional actuator 2. According to the invention, however, the additional actuator 2 remains activated when the basic actuator 1 is properly deactivated. The additional actuator 2 is therefore only deactivated if the actual activation state of the basic actuator 1 deviates from the target activation state of the basic actuator 1.
- an additional switch 9 is assigned to the additional actuator 2 analogously to the basic actuator 1 and is switched together with the additional actuator 2.
- the switching state of the additional switch 9 and thus the actual activation state of the additional actuator 2 is also supplied to the control unit 3.
- the actual activation states of the basic actuator 1 and the additional actuator 2 can thus, as indicated by dashed lines in FIG. 1, be reported to the fail-safe controller 5 or another higher-level unit 10.
- the basic actuator 1 is activated and deactivated directly from the safe controller 5.
- the basic actuator 1 could also be activated and deactivated via the control unit 3.
- the control unit 3 is only supplied with electrical energy if the target activation state of the basic actuator 1 corresponds to an activated basic actuator 1. Therefore, the control unit 3 is assigned an energy buffer 12, for. B. a storage capacitor 12. By means of the energy buffer 12, when the basic actuator 1 is deactivated, the control unit 3 can continue to be supplied with energy for a short time.
- the energy buffer 12 is dimensioned in such a way that when the basic actuator 1 is deactivated, the control unit 3 can still detect a deviation in the actual activation state of the basic actuator 1 and deactivate the additional actuator 2. Alternatively, it would also be possible to permanently supply the control unit 3 with electrical energy via auxiliary connections.
- the actuators 1, 2 and the control unit 3 are arranged in a common housing 11. As a result, the actuator unit can be assembled and disassembled as a unit.
- FIG. 2 now shows the mechanical-structural design of the actuator unit from FIG. 1.
- the housing 11 is designed as a housing 11 with a high degree of protection, by means of which the basic actuator 1, the additional actuator 2 and the control unit 3 and the switches 8, 9 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 has plug connectors 13 to 15.
- the connectors 13 to 15 are accessible from outside the housing 11.
- the basic actuator 1 and the additional actuator 2 can be connected to the useful circuit 4 by means of the plug connector 13. Electrical energy can be supplied to the basic actuator 1, the additional actuator 2 and the control unit 3 by means of the plug connector 14.
- the control unit 3 further signals, for. B. emergency stop signals, feedable.
- the connectors 13 are assigned locking levers 16. Threaded bores 17 are assigned to connector 14.
- the plug connectors 15 are provided with screw threads 18.
- the locking levers 16, the threaded bores 17 and the screw thread 18 form holding devices 16 to 18. With them, not shown, with the connectors 13 to 15 connected mating connectors and / or not shown, covers placed on the connectors 13 to 15 can be secured against accidental loosening.
- the provision of the housing 11 with the connectors 13 to 15 and also the assignment of the holding devices 16 to 18 to the connectors 13 to 15 is of course possible regardless of the presence and design of the housing 11 as a housing 11 with a high degree of protection.
Landscapes
- Safety Devices In Control Systems (AREA)
- Keying Circuit Devices (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19948632A DE19948632B4 (de) | 1999-10-08 | 1999-10-08 | Aktoreinheit mit einem Grundaktor, einem Zusatzaktor und einer Ansteuereinheit |
DE19948632 | 1999-10-08 | ||
PCT/DE2000/003236 WO2001027955A1 (de) | 1999-10-08 | 2000-09-18 | Aktoreinheit mit einem grundaktor, einem zusatzaktor und einer ansteuereinheit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1218908A1 true EP1218908A1 (de) | 2002-07-03 |
EP1218908B1 EP1218908B1 (de) | 2006-08-02 |
Family
ID=7925023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00978941A Expired - Lifetime EP1218908B1 (de) | 1999-10-08 | 2000-09-18 | Aktoreinheit mit einem grundaktor, einem zusatzaktor und einer ansteuereinheit |
Country Status (5)
Country | Link |
---|---|
US (1) | US7061143B1 (de) |
EP (1) | EP1218908B1 (de) |
CN (1) | CN1214425C (de) |
DE (2) | DE19948632B4 (de) |
WO (1) | WO2001027955A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10006781A1 (de) * | 2000-02-18 | 2002-03-14 | Xcellsis Gmbh | Vorrichtung mit einer Brennstoffzelle für die Erzeugung elektrischer Energie und mit Verteilung der elektrischen Energie an Verbraucher |
DE10331164A1 (de) * | 2003-07-10 | 2005-02-17 | Insta Elektro Gmbh | Aktor |
DE102008018256B4 (de) | 2008-03-31 | 2023-04-27 | Siemens Aktiengesellschaft | Steuermodul mit Anschlusseinrichtungen zum Anschluss an Anschlussklemmen eines Verbraucherabzweiges sowie Verbraucherabzweig |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2920188C2 (de) * | 1979-05-17 | 1986-11-13 | Siemens AG, 1000 Berlin und 8000 München | Überwachungsschaltung |
DE2951118C2 (de) * | 1979-12-19 | 1984-08-23 | Gerstel, Eberhard, 4330 Mülheim | Schaltungsanordnung zur Überwachung von Leistungsschaltern |
DE3428215A1 (de) * | 1984-07-31 | 1986-02-13 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zum ueberwachen einer speicherprogrammierbaren steuereinrichtung |
DE3541338A1 (de) * | 1985-11-22 | 1987-05-27 | Pepperl & Fuchs | Schaltung mit selbstueberwachung |
JP2581598B2 (ja) * | 1989-02-15 | 1997-02-12 | 株式会社日立製作所 | 電気機器保護装置および電気機器制御装置 |
US5280135B1 (en) * | 1991-08-09 | 1998-01-20 | Intermatic Inc | Outdoor electrical outlet cover |
JPH0737308A (ja) * | 1993-07-23 | 1995-02-07 | Sony Corp | カセット・オートチェンジャー |
DE4441171C1 (de) * | 1994-11-18 | 1996-02-08 | Siemens Ag | Schützsicherheitskombination |
SE515261C2 (sv) | 1995-06-12 | 2001-07-09 | Abb Research Ltd | Kontaktorutrustning |
DE19522603A1 (de) * | 1995-06-19 | 1997-01-09 | Siemens Ag | Schutzeinrichtung gegen Überlastung der Schaltkontakte eines Schaltgerätes |
US5751536A (en) * | 1996-02-29 | 1998-05-12 | National Instruments Corporation | Method and apparatus for providing isolation from hazardous voltage levels in a hybrid instrumentation system |
US6047634A (en) * | 1996-09-03 | 2000-04-11 | The Nippon Signal Co., Ltd. | Fail-safe automatic sliding operation control apparatus for press |
DE19742716C5 (de) * | 1997-09-26 | 2005-12-01 | Phoenix Contact Gmbh & Co. Kg | Steuer- und Datenübertragungsanlage und Verfahren zum Übertragen von sicherheitsbezogenen Daten |
FR2770332B1 (fr) * | 1997-10-24 | 1999-12-03 | Schneider Electric Sa | Circuit de commande d'electroaimant |
US6535136B1 (en) * | 1998-02-26 | 2003-03-18 | Best Lock Corporation | Proximity card detection system |
US6262871B1 (en) * | 1998-05-28 | 2001-07-17 | X-L Synergy, Llc | Fail safe fault interrupter |
US6100605A (en) * | 1998-10-27 | 2000-08-08 | Liebert Corporation | Neutral bonding system for uninteruptible power supply |
-
1999
- 1999-10-08 DE DE19948632A patent/DE19948632B4/de not_active Expired - Fee Related
-
2000
- 2000-09-18 WO PCT/DE2000/003236 patent/WO2001027955A1/de active IP Right Grant
- 2000-09-18 DE DE50013272T patent/DE50013272D1/de not_active Expired - Lifetime
- 2000-09-18 CN CNB008138133A patent/CN1214425C/zh not_active Expired - Lifetime
- 2000-09-18 US US10/110,112 patent/US7061143B1/en not_active Expired - Lifetime
- 2000-09-18 EP EP00978941A patent/EP1218908B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0127955A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1218908B1 (de) | 2006-08-02 |
CN1214425C (zh) | 2005-08-10 |
DE19948632A1 (de) | 2001-05-23 |
DE50013272D1 (de) | 2006-09-14 |
DE19948632B4 (de) | 2005-08-11 |
US7061143B1 (en) | 2006-06-13 |
CN1377507A (zh) | 2002-10-30 |
WO2001027955A1 (de) | 2001-04-19 |
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