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WO2025104142A1 - Dispositif de sécurité électrique et procédé pour faire fonctionner un dispositif de sécurité électrique - Google Patents

Dispositif de sécurité électrique et procédé pour faire fonctionner un dispositif de sécurité électrique Download PDF

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Publication number
WO2025104142A1
WO2025104142A1 PCT/EP2024/082289 EP2024082289W WO2025104142A1 WO 2025104142 A1 WO2025104142 A1 WO 2025104142A1 EP 2024082289 W EP2024082289 W EP 2024082289W WO 2025104142 A1 WO2025104142 A1 WO 2025104142A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
safety device
electrical
communication
reset
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.)
Pending
Application number
PCT/EP2024/082289
Other languages
German (de)
English (en)
Inventor
Andreas Schacht
Zafer CANKURTARAN
Michael Flesch
Aurel BUDA
Friedrich Becker
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.)
Turck Holding GmbH
Original Assignee
Turck Holding GmbH
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 Turck Holding GmbH filed Critical Turck Holding GmbH
Publication of WO2025104142A1 publication Critical patent/WO2025104142A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • H02H3/063—Details concerning the co-operation of many similar arrangements, e.g. in a network

Definitions

  • the invention relates to an electrical safety device having a power input, at least one power output and a monitoring circuit for monitoring an electrical parameter of the power output and a method for operating such an electrical safety device.
  • the invention relates to the field of power electronics, such as a device with electronic fuse for distributing electrical power in the field, i.e. in particular for field devices in the context of machines and systems, for example between automation components.
  • electrical safety devices are typically used. These monitor the current and disconnect the devices from the power supply if a threshold is exceeded. Short-circuit detection can also be achieved.
  • the electronic fuse is intended for decentralized use, particularly in the field. If the fuse trips, the fuse must be replaced to continue operation of the connected devices. acknowledged and thus reset to release the power again.
  • the fuse can be connected to an IO-Link master, for example, to perform the acknowledgement remotely.
  • the fuse can also be configured to acknowledge again after a certain cooling time. Furthermore, the fuse can be disconnected from the power supply by switching off the upstream energy source.
  • Safety devices are known that can be controlled via a data connection.
  • a reset signal can be transmitted to a safety device via this communication connection, which then automatically resets it.
  • this integration of the safety device into a network is not possible in all applications.
  • EP 1 950 784 B1 describes a reset device for an electrical safety device. It is provided that a reset movement is transmitted to the safety device by means of an actuator in order to reset it. An electromagnet is used for this purpose.
  • DE 10 2019 213 604 A1 discloses a protective switching device for a low-voltage circuit.
  • WO 2012/113 445 A2 describes a device for switching a power supply.
  • WO 2018/185 051 A1 proposes an electrical switching device.
  • Ethernet interfaces to control the reset, so that the security device must be integrated as a device into a communication network.
  • the electrical safety device comprises a power input, at least one power output, and a monitoring circuit for monitoring an electrical parameter of the power output.
  • the monitoring circuit is configured to activate a triggered state of the safety device depending on the electrical parameter, in particular when the electrical parameter exceeds a threshold value, in which the power output is electrically isolated from the power input.
  • a communication interface with at least one communication pin and a control unit are also provided.
  • the control unit is configured to reset the electrical safety device in the triggered state of the safety device depending on an electrical reset parameter on the communication pin of the communication interface, in particular depending on a voltage on the communication pin.
  • the power input is designed for connection to a higher-level electrical power supply.
  • the at least one power output is configured for connecting an electrical device, for example, a field device.
  • Field devices are, for example, actuators and sensors in automation technology.
  • Other components can also be referred to as field devices, for example, measuring transducers, communication devices, control units, regulators, or measuring devices.
  • a further device can also be connected to a power output, with which electrical power can be provided for additional devices; for example, an electrical distributor or another electrical safety device.
  • the electrical safety device has a plurality of power outputs.
  • the electrical safety device can be designed as a distribution device for electrical power.
  • the electrical parameter of the power output monitored by the monitoring circuit may in particular be a current intensity.
  • the triggered state of the safety device can be activated, for example, by means of the control unit.
  • At least one power output is electrically isolated from the power input, and accordingly, devices connected to this power output are no longer supplied with electrical power via the power output.
  • those power outputs for which the monitored electrical parameter exceeds the threshold value can be electrically isolated, whereby the threshold values can be individually specified for the individual power outputs.
  • all power outputs of the electrical safety device can be electrically isolated from the power input.
  • the invention allows, for example, the use of a digital input/output, in particular a standard input/output mode (SIO mode), of the communication interface.
  • a digital input/output in particular a standard input/output mode (SIO mode)
  • the fuse Via the communication pin (e.g., "pin 4" in the standard pin assignment) in SIO mode, the fuse can be acknowledged by switching an externally or internally provided voltage signal, for example, 24 V. No external A power supply is necessary, although it can be optionally provided in certain embodiments. In another embodiment, acknowledgement can be achieved by switching an entire power train off and on again.
  • a so-called “smart power supply unit” (PSU) is used, which is integrated into a data network and can be controlled via such a network.
  • PSU smart power supply unit
  • the electrical safety device is designed according to the standard DIN EN 81346 (version 2019).
  • the electrical safety device is configured such that the communication pin, in the reset state of the electrical safety device or in a standard input/output mode (SIO mode), is used as a switching and communication line, in particular as an SIO input or as a communication pin (C/Q) for an IO-Link connection.
  • SIO mode standard input/output mode
  • C/Q communication pin
  • a "pin 4" can be used both for communication and as an input in SIO mode.
  • control unit is configured to reset the electrical safety device when a specific voltage of, for example, 24 V or when a voltage within a predetermined range is applied to the communication pin, for example a voltage in a range between 18 V and 30 V, preferably in a range of 20 V to 28 V, particularly preferably a voltage of 24 V.
  • control unit can be configured to reset the electrical fuse when a voltage in a specific other range is applied to the communication pin, for example in a range from 1 V to 10 V, preferably in a range from 5 V to 10 V.
  • the electrical reset parameter in this case is a voltage and the reset occurs depending on the level of the voltage.
  • a threshold value can be specified for the electrical reset parameter, and if the threshold value is exceeded or undershot, the safety device is reset.
  • a specific value of the reset parameter can be specified, with the safety device being reset when the specific value is reached, in particular within a specified tolerance of, for example, 10% deviation.
  • the reset parameter can be temporally variable.
  • the control unit can be configured to reset the security device when a specific signal is present for a specific time, i.e., when a temporal threshold for a specific signal is exceeded.
  • the reset parameter can comprise a signal pattern, such as a defined sequence of signals that are, in particular, temporally variable.
  • the communication interface is configured such that the electrical reset parameter is obtained at the communication pin by means of an external device, in particular by applying a specific external voltage of, for example, 24 V or a voltage in a predetermined range, for example in a range between 18 V and 30 V, preferably in a range of 20 V to 28 V, particularly preferably a voltage of 24 V.
  • a specific external voltage of, for example, 24 V or a voltage in a predetermined range for example in a range between 18 V and 30 V, preferably in a range of 20 V to 28 V, particularly preferably a voltage of 24 V.
  • control unit can be configured, for example for applications in the automotive sector and/or mobile equipment, to reset the electrical fuse when a voltage in a certain other range is applied to the communication pin, for example in a range from 1 V to 10 V, preferably in a range from 5 V to 10 V.
  • An external device could be, for example, an external power supply. This can be manually connected by a user to reset the security device.
  • the reset parameter is not only a fixed value of a voltage, but includes other aspects, in particular a time-varying voltage value, then this reset parameter can also be provided by an external device.
  • control unit is further configured to When the electrical safety device is triggered, a signaling contact pin of the communication interface is applied with a defined voltage.
  • a signaling contact pin of the communication interface is applied with a defined voltage.
  • a bridge is connected from the power input to the signal contact pin.
  • the signal contact pin of the communication interface can be designed as “Pin 2” of a connection assignment for an IO-Link device according to the standard DIN EN 60947-5-2 (version 2021).
  • one of the pins of the communication interface is used as a signaling contact.
  • Another pin which otherwise fulfills a role for implementing data transmission, is used to detect the bridging between the pins, and this event defines the condition for resetting the safety device.
  • the signaling contact pin can be connected to the communication pin of the communication interface - particularly in the triggered state of the electrical safety device - by plugging a plug with a bridge circuit into the communication interface and/or a user actuating a switch with a bridge circuit and/or switching a bridge circuit using a reset signal.
  • the invention can also be easily adapted and integrated into existing safety devices.
  • An external voltage source can be used to reset the safety device which applies a specific voltage, such as 24 V, to the communication pin.
  • the communication pin can be the pin of the communication interface, designated "Pin 4" according to the standard.
  • the fuse can then be reset.
  • One method for resetting the fuse device is, for example, for pin 4 to function as an input in SIO mode, and for the fuse to acknowledge when a voltage of 24 V is applied.
  • a circuit can be activated so that a specific voltage, such as 24 V, is switched from the internal power line to a signaling contact pin, for example, the pin of the communication interface, which is standardly designated as "Pin 2.” This voltage can then be applied via a bridge to the communication pin, such as "Pin 4,” to acknowledge the safety device.
  • a specific voltage such as 24 V
  • the safety device can be operated, for example, as an IO-Link device.
  • This device is an IOL device.
  • the safety device can also be reset by switching it off and on again.
  • One method for resetting the safety device involves the PSU receiving a control signal and switching it off and on again based on the control signal. The safety device can thus be acknowledged remotely.
  • the reset parameter is a voltage applied to the communication pin.
  • Figure 2 is a schematic representation of an embodiment of the electrical safety device
  • Figures 3A to 3C are schematic views of the terminals and pin assignment of the embodiment of the safety device.
  • Figure 4 is a schematic representation of an embodiment of the method.
  • a main line 10 provides electrical power with an alternating voltage of 400 V.
  • a higher-level electrical power supply unit (PSU) 12 is connected to the main line 10 and then provides power with a direct voltage of 24 V via a line 14.
  • PSU electrical power supply unit
  • a line in Figure 1 indicates the distinction between an alternating current range (AC range) and a direct current range (DC range).
  • a first safety device 30 is connected to the line 14.
  • the electrical power is further distributed via a further line 15 from the first safety device 30 to a second safety device 31.
  • the safety devices 30, 31 are essentially constructed the same in the embodiment.
  • Devices 22 are connected to the safety devices 30, 31 and are supplied with electrical power via lines 16, 18.
  • the devices 22 may in particular be field devices 22, for example actuators and sensors; however, other devices may also be connected, in particular other electrical safety devices and electrical distribution devices.
  • the exemplary embodiment shows a line 20 from the second safety device 31 to one of the devices 22, wherein an IO-Link connection can be established via this line 20.
  • the device 22 can function as an IO-Link master, and the electrical safety device 31 can be operated as an IO-Link device.
  • the electrical safety device 30 has a power input 41.
  • a monitoring circuit 45 is provided, which is arranged and designed such that an electrical parameter, in this case a current intensity, is monitored for the power outputs 42, 43, 44.
  • the monitoring circuit 45 is configured to activate a triggered state of the safety device 30 when the detected current exceeds a threshold value.
  • the power outputs 42, 43, 44 are electrically disconnected from the power input 41.
  • the current of each of the power outputs 42, 43, and 44 is limited to 4 A. If this current threshold is exceeded, the power outputs 42, 43, and 44 are deactivated.
  • the electrical safety device also has a control unit 47.
  • the control unit monitors a communication pin of the communication interface 46 and checks whether an electrical reset parameter is present there.
  • such a reset parameter is present when the communication pin is supplied with a voltage of 24 V.
  • the electrical safety device 30 is reset.
  • the communication interface 46 has a pin assignment for an IO-Link device according to the DIN EN 60947-5-2 standard (version 2021), as shown below in Figures 3A to 3C.
  • the communication pin is configured as "Pin 4," specifically for a switching and communication line, C/Q.
  • control unit 47 applies a defined voltage to a signaling contact pin of the communication interface 46 upon activation of the triggered state. This is achieved by a bridge circuit that connects the signaling contact pin to the power input 41 such that 24 V is applied.
  • "Pin 2" is used as the signaling contact pin of the communication interface 46, as provided for in the standards DIN EN 60947-5-2 (version 2021) and DIN EN 81346 (version 2019).
  • Figure 3B shows an assignment of the IO-Link port of the exemplary embodiment of the security device 30.
  • Figure 4 shows a schematic representation of an exemplary embodiment of the method, wherein the device explained above is assumed.
  • Pins 1 and 3 of the communication interface 32 are used for an external power supply. Communication takes place via pin 4 in the reset state, while in the triggered state, an acknowledgement can be performed by applying a voltage of 24 V to pin 4.
  • a first step S1 it is determined that the IO-Link port 32 is not supplied with external voltage. If necessary, it is also determined that the IO-Link port 32 is not being used by a connected device. In a step S2, when the

Landscapes

  • Safety Devices In Control Systems (AREA)

Abstract

L'invention concerne un dispositif de sécurité (30) électrique comprenant une entrée de puissance (41), au moins une sortie de puissance (42, 43, 44) ainsi qu'un circuit de surveillance (45) pour surveiller un paramètre électrique de la sortie de puissance (42, 43, 44) ; le circuit de surveillance (45) étant conçu pour activer, en fonction du paramètre électrique, en particulier lorsque le paramètre électrique passe au-dessus d'une valeur seuil, un état déclenché du dispositif de sécurité (30), dans lequel la sortie de puissance (42, 43, 44) est séparée électriquement de l'entrée de puissance (41) ; le circuit de surveillance (45) étant conçu pour activer, en fonction du paramètre électrique, en particulier lorsque le paramètre électrique dépasse une valeur de seuil, un état déclenché du dispositif de sécurité (30), dans lequel la sortie de puissance (42, 43, 44) est séparée électriquement de l'entrée de puissance (41) ; une interface de communication (46) comportant au moins une broche de communication (broche 4) étant en outre prévue ; ainsi qu'une unité de commande (47) qui est conçue pour réinitialiser le dispositif de sécurité électrique (30) dans l'état déclenché du dispositif de sécurité (30) en fonction d'un paramètre de réinitialisation électrique sur la broche de communication de l'interface de communication (46), en particulier en fonction d'une tension sur la broche de communication. Cette invention concerne en outre un procédé pour faire fonctionner un dispositif de sécurité électrique (30).
PCT/EP2024/082289 2023-11-17 2024-11-14 Dispositif de sécurité électrique et procédé pour faire fonctionner un dispositif de sécurité électrique Pending WO2025104142A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023132145.5A DE102023132145A1 (de) 2023-11-17 2023-11-17 Elektrische Sicherungsvorrichtung und Verfahren zum Betrieb einer elektrischen Sicherungsvorrichtung
DE102023132145.5 2023-11-17

Publications (1)

Publication Number Publication Date
WO2025104142A1 true WO2025104142A1 (fr) 2025-05-22

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PCT/EP2024/082289 Pending WO2025104142A1 (fr) 2023-11-17 2024-11-14 Dispositif de sécurité électrique et procédé pour faire fonctionner un dispositif de sécurité électrique

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DE (1) DE102023132145A1 (fr)
WO (1) WO2025104142A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113445A2 (fr) 2011-02-22 2012-08-30 Siemens Aktiengesellschaft Dispositif et procédé de commutation d'une alimentation en courant et réseau électrique
EP1950784B1 (fr) 2007-01-24 2014-01-01 Bticino S.p.A. Dispositif de réarmement pour un dispositif électrique de sécurité à temps de restauration réduite
DE102014100830A1 (de) * 2014-01-24 2015-07-30 Murrelektronik Gmbh Elektrische Sicherung, dezentrale Sicherungseinheit sowie System
WO2018185051A1 (fr) 2017-04-06 2018-10-11 Siemens Ag Österreich Dispositif de commutation électrique
US10868416B2 (en) * 2018-03-02 2020-12-15 Sierra Wireless, Inc. Protection circuit involving positive temperature coefficient device
DE102019213604A1 (de) 2019-09-06 2021-03-11 Siemens Aktiengesellschaft Schutzschaltgerät, Schutzschaltsystem und Verfahren
DE102022125988A1 (de) * 2021-10-27 2023-04-27 Elmos Semiconductor Se Elektronische Sicherung mit Temperaturüberwachung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1950784B1 (fr) 2007-01-24 2014-01-01 Bticino S.p.A. Dispositif de réarmement pour un dispositif électrique de sécurité à temps de restauration réduite
WO2012113445A2 (fr) 2011-02-22 2012-08-30 Siemens Aktiengesellschaft Dispositif et procédé de commutation d'une alimentation en courant et réseau électrique
DE102014100830A1 (de) * 2014-01-24 2015-07-30 Murrelektronik Gmbh Elektrische Sicherung, dezentrale Sicherungseinheit sowie System
WO2018185051A1 (fr) 2017-04-06 2018-10-11 Siemens Ag Österreich Dispositif de commutation électrique
US10868416B2 (en) * 2018-03-02 2020-12-15 Sierra Wireless, Inc. Protection circuit involving positive temperature coefficient device
DE102019213604A1 (de) 2019-09-06 2021-03-11 Siemens Aktiengesellschaft Schutzschaltgerät, Schutzschaltsystem und Verfahren
DE102022125988A1 (de) * 2021-10-27 2023-04-27 Elmos Semiconductor Se Elektronische Sicherung mit Temperaturüberwachung

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