EP3023376A1 - Textile machine with circuit cards and circuit card - Google Patents
Textile machine with circuit cards and circuit card Download PDFInfo
- Publication number
- EP3023376A1 EP3023376A1 EP15002695.3A EP15002695A EP3023376A1 EP 3023376 A1 EP3023376 A1 EP 3023376A1 EP 15002695 A EP15002695 A EP 15002695A EP 3023376 A1 EP3023376 A1 EP 3023376A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- overcurrent protection
- protection device
- printed circuit
- textile machine
- interface
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2551/00—Means for control to be used by operator; User interfaces
- B65H2551/10—Command input means
- B65H2551/15—Push buttons; Keyboards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2551/00—Means for control to be used by operator; User interfaces
- B65H2551/20—Display means; Information output means
- B65H2551/21—Monitors; Displays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/10—Means for control not provided for in groups B65H2551/00 - B65H2555/00 for signal transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/60—Details of processes or procedures
- B65H2557/65—Details of processes or procedures for diagnosing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/0411—Miniature fuses
- H01H2085/0412—Miniature fuses specially adapted for being mounted on a printed circuit board
Definitions
- the invention relates to a textile machine with a plurality of jobs, wherein the textile machine has a plurality of printed circuit boards and the printed circuit boards each having an electronic circuit and at least one interface for the exchange of signals.
- the invention also relates to a printed circuit board.
- the large number of printed circuit boards is already due to the large number of similar jobs.
- the printed circuit boards can serve to control actuators or drives or to collect data and evaluate sensor signals.
- the printed circuit boards have interfaces, that is to say inputs and outputs, to which the actuators or the sensors are connected.
- the installation locations of the printed circuit boards often result from the arrangement of the sensors and actuators. For these reasons, the accessibility of the circuit boards for the purpose of verification or replacement is often not sufficiently given.
- the EP 2 562 114 A2 discloses a textile machine with printed circuit boards.
- the printed circuit board has a detection device which detects and stores temporal profiles of load values during operation.
- load values can be values of the temperature, the supply voltage, the current consumption or the vibration load of the printed circuit board.
- the stored load values are intended to facilitate the determination of the cause of failure in the event of failure.
- the system is relatively expensive. Since the textile machines usually have a large number of printed circuit boards, a large amount of data has to be stored and above all managed. The evaluation of the courses requires a high level of expertise.
- overcurrent protection device for protecting the interface assigned to the overcurrent protection device is assigned a monitoring device that monitors the triggering of the overcurrent protection device, and there is a display device that communicates with the monitoring device and the Tripping the overcurrent protection device displays.
- the overcurrent protection triggers in the event of a fault, in particular a short circuit, of the sensor or actuator connected to the interface. This avoids further damage to the sensor or actuator as well as damage to the printed circuit board. Since the triggering of the overcurrent protection device is displayed, a manual remeasurement is unnecessary by the operator, or by the repairer performing the technician. This is particularly advantageous for poor accessibility of the printed circuit board.
- the tripping of the overcurrent protection device also causes a fault in the sensor or actuator connected to the interface. If the overcurrent protection device does not trigger the interface, it can be concluded that the PCB is defective in the event of a PCB failure.
- the printed circuit boards have several interfaces.
- the plurality of interfaces of the circuit board, the overcurrent protection device can be assigned together.
- the evaluation effort can be kept low, and it is possible to distinguish whether the fault is to be found on the printed circuit board or in one of the sensors or actuators connected to the interfaces.
- the display device may include displays at the workplaces.
- the errors that occur can be easily assigned to a job, which are then easily findable for the operator.
- the display device may also include an indicator at a central location of the textile machine. This may be, for example, the display of the central control of the textile machine, which also indicates the triggering of an overcurrent protection device in addition to its other functions.
- the display device is designed so that the triggering overcurrent protection device can be detected by the operator. That is, the display device provides information about the job, the printed circuit board and / or the interface whose overcurrent protection device has triggered available.
- the job can be identified by an advertisement at the job, as described above.
- the overcurrent protection device is designed as a fuse. Fuses for printed circuit boards are simple and inexpensive. Nevertheless, they offer reliable protection against short circuits.
- the overcurrent protection device is designed as a PTC resistor.
- PTC resistors also called PTC resistors, are electrically conductive materials that conduct electricity better at low temperatures than at high temperatures. So PTC resistors have a positive temperature coefficient. Compared to metals, which are in principle also PTC thermistors, the temperature coefficient of PTC resistors is significantly larger. Since the PTC resistor is heated by an overcurrent and thus becomes high-impedance, it is also suitable as an overcurrent protection device. In addition to reliable short-circuit current protection, a PTC resistor also provides reliable overload protection. A key advantage of the PTC resistor, however, is that it represents a self-resetting fuse.
- the monitoring device may comprise means for determining a variable indicative of the resistance of the overcurrent protection device.
- the overcurrent protection device In normal error-free operation, the overcurrent protection device is low-resistance. In the event of a fault, when the overcurrent protection device triggers, it becomes high-impedance. In principle, the resistance itself can be determined, for example by means of a resistance measuring bridge. However, it is much easier if the monitoring device has means for detecting the voltage drop across the overcurrent protection device. If the overcurrent protection device is low-resistance, almost no voltage drops across the overcurrent protection device. If the overcurrent protection device has a high resistance, the full voltage, which otherwise drops across the sensor or actuator connected to the interface, was measured. The voltage indicates the resistance of the overcurrent protection device.
- the invention also relates to a printed circuit board having at least one interface for the exchange of signals.
- the interface is associated with an overcurrent protection device for protecting the interface, there is a monitoring device which monitors the triggering of the overcurrent protection device, and the monitoring device has a further interface, which is designed to transmit a signal indicating the triggering of the overcurrent protection device ,
- Such a printed circuit board is used in a textile machine according to the invention.
- the further interface can then be connected to a display device of the textile machine.
- the Fig. 1 shows a textile machine according to the invention (1) with a plurality of jobs 2.
- it is a winder.
- textile machines such as a rotor spinning machine or a ring spinning machine.
- spinning cops 9 are rewound to large-volume cheeses 11.
- the workstations 2 are located between the end racks 55 and 56.
- the textile machine 1 further comprises a service unit 57 movable along the textile machine 1 for operating the workstations 2.
- the control system of the textile machine 1 has centralized and decentralized control elements. In the area of the end rack 56, a central control unit 50 is arranged.
- the operator can enter parameters for the operation of the textile machine 1 and query states.
- the central control unit 50 has a display 51 and a keyboard 52.
- a bus system 60 is present.
- the bus system 60 in particular connects the control device 58 of the service unit 57 and the workstation controls 40 to the central control unit 50.
- the workstation control 40 enables the individual control and monitoring of the workstations 2.
- the workstations also have a simple display 41 for displaying operating states.
- Actuators are, for example, drives of the winding drum or the traversing device. Thread monitor or yarn tension sensor are typical sensors of a winder. 1
- the sensors often have their own control devices in the form of printed circuit boards with electronic circuits. Circuit boards are also referred to as printed circuit boards or boards.
- Fig. 2 is an example of a printed circuit board 12 represents.
- the printed circuit board 12 is connected to the workstation controller 40 via a communication line 17.
- the communication line 17 may also be part of a workstation's own bus system, the control cards of a workplace control technology with the Workplace control 40 connects.
- the printed circuit board 12 in turn has the interfaces 4A and 4B.
- Interfaces can be inputs or outputs via which the sensors or actuators are connected to the printed circuit boards.
- the printed circuit boards are preferably positioned in the vicinity of the sensors or actuators. In addition, the space at the workplaces is limited. This results in poor accessibility of the printed circuit boards.
- FIGS. 3 to 5 show various embodiments of the printed circuit boards.
- the Fig. 3 shows the printed circuit board 12A, to which a consumer 31 is connected.
- the consumer 31 can be designed as a sensor or actuator.
- the consumer 31 is connected to the interface 4 of the printed circuit board 21A.
- the reference terminal 30 serves as the second terminal for the load 31.
- the interface 4 is preceded by an overcurrent protection device 3A.
- Overcurrent protection devices are also referred to as electrical fuses.
- Such overcurrent protection devices for printed circuit boards can be designed, for example, as a fuse. Depending on the duration and the size of the current flowing through the fuse, the fuse becomes high-impedance. This process is irreversible. This means that after triggering the fuse, the fuse must be replaced.
- the fuse can be arranged on a corresponding socket on the printed circuit board. This makes it possible in principle to replace the fuse when troubleshooting on site. It is also possible to solder the fuse directly to the PCB. Then, in the event of a fault, the entire printed circuit board is first replaced and the fuse is only replaced by the manufacturer as part of a repair. However, the replacement of the printed circuit board or the fuse often turns out to be difficult because of the poor accessibility of the printed circuit board. Therefore, it is particularly advantageous if the overcurrent protection device is designed as a PTC resistor.
- a PTC resistor Like a fuse, a PTC resistor becomes high-ohmic depending on the duration and magnitude of an overcurrent.
- a PTC resistor thus has the advantage that after triggering the PTC resistor, it does not have to be replaced.
- the Fig. 3 also shows a monitoring device 15A which monitors the voltage drop across the overcurrent protection device 3A.
- the monitoring device 15A can be designed, for example, as an operational amplifier. In normal error-free operation, the overcurrent protection device 3A is low-resistance. There is no voltage across the overcurrent protection device 3A. The monitoring device 15A does not generate a signal. After the tripping of the overcurrent protection device 3A, the overcurrent protection device 3A becomes high-impedance. The monitoring device 15A generates a signal. The signal can be tapped at the interface 16A.
- the Fig. 4 shows a printed circuit board 12B, in which a plurality of interfaces 14A, 14B, 14C, an overcurrent protection device 3B is assigned.
- the overcurrent protection device 3B is in a common path of the interfaces 14A, 14B, 14C.
- the blocks 18, 19, 20 indicate the further connection of the interfaces 14A, 14B, 14C.
- the voltage across the overcurrent protection device 3B is monitored by the monitoring device 15B.
- the monitoring device 15B has an interface 16B.
- the interface 16B generates a signal indicating whether the overcurrent protection device is high or low impedance.
- the Fig. 5 shows another example of a printed circuit board 12C.
- each of the interfaces 24A, 24B, 24C is assigned its own overcurrent protection device 13A, 13B, 13C.
- the overcurrent protection devices 13A, 13B, 13C are each assigned a monitoring device, not shown here, analogous to the monitoring devices 15A and 15B.
- the signal from the monitors 15A, 15B becomes, as in Fig. 2 indicated, transmitted via the communication line 17 to the workstation controller 40. Then it is possible to display the state of the respective overcurrent protection devices.
- the display can be made on the display 41 of the workstation 2 or on the display 51 of the central control unit 50. In the latter case, the detected state of the workstation control 40 via the textile machine-own bus system 60 to the central Control unit 50 transmitted.
- the state can also be displayed on both displays 41 and 51.
- the information can also be split up wisely. It is displayed at which workstation and on which printed circuit board an overcurrent protection device has tripped and, if applicable, which overcurrent protection device has triggered the printed circuit board.
- a meaningful division would be, for example, the display of the affected job on the display 51 on the end frame 56, and a breakdown of the concrete overcurrent protection device can be done at the workplace. As a result, an optimal guidance of the operator to the defective sensor or actuator is achieved. The operator can then examine or replace the respective sensor or actuator in a targeted manner. Further troubleshooting on the PCB is unnecessary. If a PTC resistor is used as the overcurrent protection device, replacement of the fuse or printed circuit board is also unnecessary.
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Emergency Protection Circuit Devices (AREA)
- Looms (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
Abstract
Die Erfindung betrifft eine Textilmaschine (1) mit einer Vielzahl von Arbeitsstellen (2), wobei die Textilmaschine (1) eine Vielzahl von Leiterkarten (12, 12A, 12B, 12C) aufweist und die Leiterkarten (12, 12A, 12B, 12C) mindestens eine Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) zum Austausch von Signalen aufweisen. Erfindungsgemäß ist der Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) eine auf der jeweiligen Leiterkarte (12, 12A, 12B, 12C) angeordnete Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) zum Schutz der Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) zugeordnet, der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) ist eine Überwachungseinrichtung (15A, 15B) zugeordnet, die das Auslösen der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) überwacht, und es ist eine Anzeigevorrichtung (41, 51) vorhanden, die mit der Überwachungseinrichtung (15A, 15B) in Verbindung steht und das Auslösen der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) anzeigt. Die Erfindung betrifft weiterhin eine entsprechende Leiterkarte (12, 12A, 12B, 12C). The invention relates to a textile machine (1) having a plurality of work stations (2), wherein the textile machine (1) has a plurality of printed circuit boards (12, 12A, 12B, 12C) and the printed circuit boards (12, 12A, 12B, 12C) at least an interface (4, 14A, 14B, 14C, 24A, 24B, 24C) for exchanging signals. According to the invention, the interface (4, 14A, 14B, 14C, 24A, 24B, 24C) has an overcurrent protection device (3A, 3B, 13A, 13B, 13C) arranged on the respective printed circuit board (12, 12A, 12B, 12C) for protecting the interface (4, 14A, 14B, 14C, 24A, 24B, 24C), the overcurrent protection device (3A, 3B, 13A, 13B, 13C) is associated with a monitoring device (15A, 15B) which controls the tripping of the overcurrent protection device (3A, 3B, 13A, 13B, 13C), and a display device (41, 51) is provided which communicates with the monitoring means (15A, 15B) and indicates the tripping of the overcurrent protection means (3A, 3B, 13A, 13B, 13C). The invention further relates to a corresponding printed circuit board (12, 12A, 12B, 12C).
Description
Die Erfindung betrifft eine Textilmaschine mit einer Vielzahl von Arbeitsstellen, wobei die Textilmaschine eine Vielzahl von Leiterkarten aufweist und die Leiterkarten jeweils eine elektronische Schaltung und mindestens eine Schnittstelle zum Austausch von Signalen aufweisen. Die Erfindung betrifft außerdem eine Leiterkarte.The invention relates to a textile machine with a plurality of jobs, wherein the textile machine has a plurality of printed circuit boards and the printed circuit boards each having an electronic circuit and at least one interface for the exchange of signals. The invention also relates to a printed circuit board.
Textilmaschinen heutiger Bauart weisen eine Vielzahl von Leiterkarten auf. Die Vielzahl von Leiterkarten ist dabei schon durch die Vielzahl gleichartiger Arbeitsstellen bedingt. Auch an den Arbeitsstellen gibt es häufig mehrere Leiterkarten mit verschiedenen Aufgaben. Die Leiterkarten können dabei der Ansteuerung von Aktoren oder Antrieben oder der Datenerfassung und der Auswertung von Sensorsignalen dienen. Dazu weisen die Leiterkarten Schnittstellen, das heißt Ein- und Ausgänge auf, an die die Aktoren oder die Sensoren angeschlossen werden. Die Platzverhältnisse an den Arbeitsstellen der Textilmaschine sind begrenzt. Außerdem ergeben sich die Einbauorte der Leiterkarten häufig aus der Anordnung der Sensoren und Aktoren. Aus diesen Gründen ist die Zugänglichkeit der Leiterkarten zum Zwecke der Überprüfung oder zum Austausch häufig nicht in ausreichendem Maße gegeben.Today's textile machines have a multiplicity of printed circuit boards. The large number of printed circuit boards is already due to the large number of similar jobs. Also at the workplaces there are often several printed circuit boards with different tasks. The printed circuit boards can serve to control actuators or drives or to collect data and evaluate sensor signals. For this purpose, the printed circuit boards have interfaces, that is to say inputs and outputs, to which the actuators or the sensors are connected. The space available at the workstations of the textile machine are limited. In addition, the installation locations of the printed circuit boards often result from the arrangement of the sensors and actuators. For these reasons, the accessibility of the circuit boards for the purpose of verification or replacement is often not sufficiently given.
Die
Es ist daher die Aufgabe der vorliegenden Erfindung, eine schnelle und sichere Behebung von Fehlern bei Ausfällen von Leiterkarten von Textilmaschinen zu ermöglichen und gleichzeitig mögliche Folgefehler zu vermeiden.It is therefore the object of the present invention to enable a fast and reliable repair of errors in failure of printed circuit boards of textile machines and at the same time to avoid possible consequential errors.
Zur Lösung der Aufgabe ist der Schnittstelle eine auf der jeweiligen Leiterkarte angeordnete Überstromschutzeinrichtung zum Schutz der Schnittstelle zugeordnet, der Überstromschutzeinrichtung ist eine Überwachungseinrichtung zugeordnet, die das Auslösen der Überstromschutzeinrichtung überwacht, und es ist eine Anzeigevorrichtung vorhanden, die mit der Überwachungseinrichtung in Verbindung steht und das Auslösen der Überstromschutzeinrichtung anzeigt.To overcome the problem of the interface is arranged on the respective circuit board overcurrent protection device for protecting the interface assigned to the overcurrent protection device is assigned a monitoring device that monitors the triggering of the overcurrent protection device, and there is a display device that communicates with the monitoring device and the Tripping the overcurrent protection device displays.
Die Überstromschutzeinrichtung löst bei einem Fehler, insbesondere einem Kurzschluss, des an die Schnittstelle angeschlossenen Sensors oder Aktors aus. Damit wird sowohl eine weitere Schädigung des Sensors oder Aktors als auch eine Schädigung der Leiterkarte vermieden. Da das Auslösen der Überstromschutzeinrichtung angezeigt wird, erübrigt sich ein manuelles Nachmessen durch den Bediener, beziehungsweise durch den die Reparatur durchführenden Techniker. Das ist insbesondere bei einer schlechten Zugänglichkeit der Leiterkarte von Vorteil. Das Auslösen der Überstromschutzeinrichtung lässt außerdem auf einen Fehler des an die Schnittstelle angeschlossenen Sensors oder Aktors schließen. Wenn die Überstromschutzeinrichtung der Schnittstelle nicht auslöst, kann bei einem Ausfall der Leiterkarte auf einen Fehler der Leiterkarte geschlossen werden.The overcurrent protection triggers in the event of a fault, in particular a short circuit, of the sensor or actuator connected to the interface. This avoids further damage to the sensor or actuator as well as damage to the printed circuit board. Since the triggering of the overcurrent protection device is displayed, a manual remeasurement is unnecessary by the operator, or by the repairer performing the technician. This is particularly advantageous for poor accessibility of the printed circuit board. The tripping of the overcurrent protection device also causes a fault in the sensor or actuator connected to the interface. If the overcurrent protection device does not trigger the interface, it can be concluded that the PCB is defective in the event of a PCB failure.
Häufig weisen die Leiterkarten mehrere Schnittstellen auf. In diesem Fall kann den mehreren Schnittstellen der Leiterkarte die Überstromschutzeinrichtung gemeinsam zugeordnet sein. Dadurch kann der Auswerteaufwand gering gehalten werden, und es ist eine Unterscheidung möglich, ob der Fehler auf der Leiterkarte oder bei einem der an die Schnittstellen angeschlossenen Sensoren oder Aktoren zu suchen ist.Frequently the printed circuit boards have several interfaces. In this case, the plurality of interfaces of the circuit board, the overcurrent protection device can be assigned together. As a result, the evaluation effort can be kept low, and it is possible to distinguish whether the fault is to be found on the printed circuit board or in one of the sensors or actuators connected to the interfaces.
Es ist auch möglich, mehreren Schnittstellen der Leiterkarte jeweils eine eigene Überstromschutzeinrichtung zuzuordnen, denen jeweils eine eigene Überwachungseinrichtung, die das Auslösen der Überstromschutzeinrichtung überwacht, zugeordnet ist. Bei einer solchen Anordnung ist es möglich, über die auslösende Überstromschutzeinrichtung der jeweiligen Schnittstelle, denjenigen Sensor oder Aktor zu identifizieren, der den Fehler aufweist.It is also possible to assign a number of interfaces of the circuit board each have their own overcurrent protection device, each of which is assigned its own monitoring device that monitors the triggering of the overcurrent protection device. In such an arrangement, it is possible to identify the initiating overcurrent protection device of the respective interface, that sensor or actuator having the error.
Die Anzeigevorrichtung kann Anzeigen an den Arbeitsstellen umfassen. Damit können die auftretenden Fehler auf einfache Weise einer Arbeitsstelle zugeordnet werden, die für den Bediener dann auch leicht auffindbar sind.The display device may include displays at the workplaces. Thus, the errors that occur can be easily assigned to a job, which are then easily findable for the operator.
Die Anzeigevorrichtung kann auch eine Anzeige an einer zentralen Stelle der Textilmaschine umfassen. Dabei kann es sich zum Beispiel um die Anzeige der zentralen Steuerung der Textilmaschine handeln, die zusätzlich zu ihren sonstigen Funktionen auch das Auslösen einer Überstromschutzeinrichtung anzeigt.The display device may also include an indicator at a central location of the textile machine. This may be, for example, the display of the central control of the textile machine, which also indicates the triggering of an overcurrent protection device in addition to its other functions.
Vorteilhafterweise ist die Anzeigevorrichtung so ausgebildet, dass für den Bediener die auslösende Überstromschutzeinrichtung erkennbar ist. Das heißt, die Anzeigeeinrichtung stellt Angaben über die Arbeitsstelle, die Leiterkarte und/ oder die Schnittstelle, deren Überstromschutzeinrichtung ausgelöst hat, zur Verfügung. Die Arbeitsstelle kann, wie oben beschrieben, durch eine Anzeige an der Arbeitsstelle identifiziert werden. Darüber hinaus ist es möglich, Codes oder Texte für die Zuordnung des Fehlers zu einer Arbeitsstelle, Leiterkarte oder Schnittstelle zu generieren.Advantageously, the display device is designed so that the triggering overcurrent protection device can be detected by the operator. That is, the display device provides information about the job, the printed circuit board and / or the interface whose overcurrent protection device has triggered available. The job can be identified by an advertisement at the job, as described above. In addition, it is possible to generate codes or texts for the assignment of the error to a workstation, printed circuit board or interface.
Gemäß einer möglichen Ausführungsform ist die Überstromschutzeinrichtung als Schmelzsicherung ausgebildet. Schmelzsicherungen für Leiterkarten sind einfach und preiswert. Sie bieten aber trotzdem einen zuverlässigen Schutz bei Kurzschlüssen.According to a possible embodiment, the overcurrent protection device is designed as a fuse. Fuses for printed circuit boards are simple and inexpensive. Nevertheless, they offer reliable protection against short circuits.
Gemäß einer alternativen und besonders vorteilhaften Ausführungsform ist die Überstromschutzeinrichtung als PTC-Widerstand ausgebildet. PTC-Widerstände, auch Kaltleiter genannt, sind stromleitende Materialien, die bei tiefen Temperaturen den Strom besser leiten als bei hohen. PTC-Widerstände haben also einen positiven Temperaturkoeffizienten. Im Vergleich zu Metallen, die im Prinzip auch Kaltleiter sind, ist der Temperaturkoeffizient von PTC-Widerständen deutlich größer. Da der PTC-Widerstand durch einen Überstrom erwärmt und damit hochohmig wird, ist er auch als Überstromschutzeinrichtung geeignet. Neben einem zuverlässigen Kurzschlussstromschutz bietet ein PTC-Widerstand auch einen zuverlässigen Überlastschutz. Ein entscheidender Vorteil des PTC-Widerstandes ist es jedoch, dass er eine selbstrückstellende Sicherung darstellt. Das heißt, bei einem Fehler des an die jeweilige Schnittstelle angeschlossenen Aktors oder Sensor löst der PTC-Widerstand aus, indem er hochohmig wird. Sobald der Fehler an dem Aktor oder Sensor behoben ist, wird der PTC-Widerstand wieder niederohmig. Ein Austausch der Leiterkarte oder des PTC-Widerstandes ist, anders als bei einer Schmelzsicherung, nicht erforderlich. Das stellt insbesondere im Hinblick auf die häufig schlechte Zugänglichkeit der Leiterkarten einen deutlichen Vorteil dar.According to an alternative and particularly advantageous embodiment, the overcurrent protection device is designed as a PTC resistor. PTC resistors, also called PTC resistors, are electrically conductive materials that conduct electricity better at low temperatures than at high temperatures. So PTC resistors have a positive temperature coefficient. Compared to metals, which are in principle also PTC thermistors, the temperature coefficient of PTC resistors is significantly larger. Since the PTC resistor is heated by an overcurrent and thus becomes high-impedance, it is also suitable as an overcurrent protection device. In addition to reliable short-circuit current protection, a PTC resistor also provides reliable overload protection. A key advantage of the PTC resistor, however, is that it represents a self-resetting fuse. This means that in the event of a fault in the actuator or sensor connected to the respective interface, the PTC resistor triggers by becoming high-impedance. As soon as the error on the actuator or sensor has been rectified, the PTC resistor becomes low again. Replacing the printed circuit board or the PTC resistor is not required, unlike a fuse. This represents a clear advantage, especially with regard to the often poor accessibility of the printed circuit boards.
Um das Auslösen der Überstromschutzeinrichtung zu überwachen, kann die Überwachungseinrichtung Mittel zur Bestimmung einer den Widerstand der Überstromschutzeinrichtung anzeigenden Größe aufweisen. Im normalen fehlerfreien Betrieb ist die Überstromschutzeinrichtung niederohmig. Im Fehlerfall, wenn die Überstromschutzeinrichtung auslöst, wird sie hochohmig. Im Prinzip kann der Widerstand selbst, zum Beispiel mittels einer Widerstandmessbrücke, ermittelt werden. Es ist jedoch viel einfacher, wenn die Überwachungseinrichtung Mittel zur Erfassung des Spannungsabfalls über der Überstromschutzeinrichtung aufweist. Wenn die Überstromschutzeinrichtung niederohmig ist, fällt nahezu keine Spannung über der Überstromschutzeinrichtung ab. Ist die Überstromschutzeinrichtung hochohmig, kam man die volle Spannung, die sonst über dem an die Schnittstelle angeschlossenen Sensor oder Aktor abfällt, messen. Die Spannung zeigt also den Widerstand der Überstromschutzeinrichtung an.In order to monitor the tripping of the overcurrent protection device, the monitoring device may comprise means for determining a variable indicative of the resistance of the overcurrent protection device. In normal error-free operation, the overcurrent protection device is low-resistance. In the event of a fault, when the overcurrent protection device triggers, it becomes high-impedance. In principle, the resistance itself can be determined, for example by means of a resistance measuring bridge. However, it is much easier if the monitoring device has means for detecting the voltage drop across the overcurrent protection device. If the overcurrent protection device is low-resistance, almost no voltage drops across the overcurrent protection device. If the overcurrent protection device has a high resistance, the full voltage, which otherwise drops across the sensor or actuator connected to the interface, was measured. The voltage indicates the resistance of the overcurrent protection device.
Die Erfindung betrifft außerdem eine Leiterkarte mit mindestens einer Schnittstelle zum Austausch von Signalen. Erfindungsgemäß ist der Schnittstelle eine Überstromschutzeinrichtung zum Schutz der Schnittstelle zugeordnet, es ist eine Überwachungseinrichtung vorhanden, die das Auslösen der Überstromschutzeinrichtung überwacht, und die Überwachungseinrichtung weist eine weitere Schnittstelle auf, die dazu ausgebildet ist, ein Signal zu übertragen, das das Auslösen der Überstromschutzeinrichtung anzeigt. Eine solche Leiterkarte findet Verwendung in einer erfindungsgemäßen Textilmaschine. Die weitere Schnittstelle kann dann mit einer Anzeigevorrichtung der Textilmaschine verbunden werden.The invention also relates to a printed circuit board having at least one interface for the exchange of signals. According to the invention, the interface is associated with an overcurrent protection device for protecting the interface, there is a monitoring device which monitors the triggering of the overcurrent protection device, and the monitoring device has a further interface, which is designed to transmit a signal indicating the triggering of the overcurrent protection device , Such a printed circuit board is used in a textile machine according to the invention. The further interface can then be connected to a display device of the textile machine.
Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawings.
Es zeigen:
- Fig. 1
- eine erfindungsgemäße Textilmaschine mit einer Vielzahl von Arbeitsstellen;
- Fig. 2
- eine schematische Darstellung zur Veranschaulichung der Anzeigevorrichtung der erfindungsgemäßen Textilmaschine;
- Fig. 3
- eine erste Ausführungsform einer erfindungsgemäßen Leiterkarte;
- Fig. 4
- eine zweite Ausführungsform einer erfindungsgemäßen Leiterkarte;
- Fig. 5
- eine dritte Ausführungsform einer erfindungsgemäßen Leiterkarte.
- Fig. 1
- a textile machine according to the invention with a plurality of jobs;
- Fig. 2
- a schematic representation for illustrating the display device of the textile machine according to the invention;
- Fig. 3
- a first embodiment of a printed circuit board according to the invention;
- Fig. 4
- a second embodiment of a printed circuit board according to the invention;
- Fig. 5
- A third embodiment of a printed circuit board according to the invention.
Die
Zur Kommunikation zwischen den verschiedenen Steuerebenen der Textilmaschine ist eine Bussystem 60 vorhanden. Das Bussystem 60 verbindet insbesondere die Steuereinrichtung 58 des Serviceaggregates 57 und die Arbeitsstellensteuerungen 40 mit der zentralen Steuereinheit 50. Die Arbeitsstellensteuerung 40 ermöglicht die individuelle Steuerung und Überwachung der Arbeitsstellen 2. Die Arbeitsstellen weisen außerdem ein einfaches Display 41 zur Anzeige von Betriebszuständen auf.The
For communication between the various control levels of the textile machine, a
An den Arbeitsstellen sind eine Reihe von Sensoren und Aktoren vorhanden. Aktoren sind zum Beispiel Antriebe der Spultrommel oder der Changiereinrichtung. Fadenwächter oder Fadenzugkraftsensor sind typische Sensoren einer Spulmaschine 1.
Die Sensoren weisen häufig eigene Steuereinrichtungen in Form von Leiterkarten mit elektronischen Schaltungen auf. Leiterkarten werden dabei auch als Leiterplatten oder Platinen bezeichnet. In
The sensors often have their own control devices in the form of printed circuit boards with electronic circuits. Circuit boards are also referred to as printed circuit boards or boards. In
Die
Ein PTC-Widerstand wird genau wie eine Schmelzsicherung in Abhängigkeit von der Dauer und der Größe eines Überstroms hochohmig. Der entscheidende Unterschied ist jedoch, dass es sich bei einem PTC-Widerstand um eine selbstrückstellende Sicherung handelt. Das heißt, nach der Behebung des Fehlers, der zum Auslösen des PTC-Widerstandes geführt hat, wird der PTC-Widerstand selbsttätig niederohmig.Like a fuse, a PTC resistor becomes high-ohmic depending on the duration and magnitude of an overcurrent. The key difference, however, is that a PTC resistor is a self-resetting fuse. That is, after correcting the error that caused the PTC resistor to trip, the PTC resistor will automatically become low impedance.
Ein PTC-Widerstand hat also den Vorteil, dass nach einem Auslösen des PTC-Widerstandes dieser nicht ausgetauscht werden muss.A PTC resistor thus has the advantage that after triggering the PTC resistor, it does not have to be replaced.
Die
Die
Die
Das Signal der Überwachungseinrichtungen 15A, 15B wird, wie in
Claims (11)
dadurch gekennzeichnet,
dass der Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) eine auf der jeweiligen Leiterkarte (12, 12A, 12B, 12C) angeordnete Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) zum Schutz der Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) zugeordnet ist,
dass der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) eine Überwachungseinrichtung (15A, 15B) zugeordnet ist, die das Auslösen der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) überwacht, und
dass eine Anzeigevorrichtung (41, 51) vorhanden ist, die mit der Überwachungseinrichtung (15A, 15B) in Verbindung steht und das Auslösen der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) anzeigt.A textile machine (1) having a plurality of work stations (2), wherein the textile machine (1) comprises a plurality of circuit boards (12, 12A, 12B, 12C) and the circuit boards (12, 12A, 12B, 12C) each comprise an electronic circuit and have at least one interface (4, 14A, 14B, 14C, 24A, 24B, 24C) for exchanging signals,
characterized,
in that the interface (4, 14A, 14B, 14C, 24A, 24B, 24C) has an overcurrent protection device (3A, 3B, 13A, 13B, 13C) arranged on the respective printed circuit board (12, 12A, 12B, 12C) for protecting the interface ( 4, 14A, 14B, 14C, 24A, 24B, 24C),
that the overcurrent protection device (3A, 3B, 13A, 13B, 13C) is associated with a monitoring device (15A, 15B) which monitors the tripping of the overcurrent protection device (3A, 3B, 13A, 13B, 13C), and
in that a display device (41, 51) is present, which is in communication with the monitoring device (15A, 15B) and indicates the triggering of the overcurrent protection device (3A, 3B, 13A, 13B, 13C).
dass der Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) eine Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) zum Schutz der Schnittstelle (4, 14A, 14B, 14C, 24A, 24B, 24C) zugeordnet ist,
dass eine Überwachungseinrichtung (15A, 15B) vorhanden ist, die das Auslösen der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) überwacht, und
dass die Überwachungseinrichtung (15A, 15B) eine weitere Schnittstelle (16A, 16B) aufweist, die dazu ausgebildet ist, ein Signal zu übertragen, das das Auslösen der Überstromschutzeinrichtung (3A, 3B, 13A, 13B, 13C) anzeigt.Printed circuit board (12, 12A, 12B, 12C) for a textile machine having at least one interface (4, 14A, 14B, 14C, 24A, 24B, 24C) for exchanging signals, characterized
in that the interface (4, 14A, 14B, 14C, 24A, 24B, 24C) has an overcurrent protective device (3A, 3B, 13A, 13B, 13C) for protecting the interface (4, 14A, 14B, 14C, 24A, 24B, 24C) assigned,
that a monitoring device (15A, 15B) is provided, which monitors the triggering of the overcurrent protection means (3A, 3B, 13A, 13B, 13C), and
in that the monitoring device (15A, 15B) has a further interface (16A, 16B) which is designed to transmit a signal which indicates the triggering of the overcurrent protection device (3A, 3B, 13A, 13B, 13C).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014015382.7A DE102014015382A1 (en) | 2014-10-17 | 2014-10-17 | Textile machine with printed circuit boards and printed circuit board |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102014015382 Previously-Filed-Application | 2014-10-17 |
Publications (1)
Publication Number | Publication Date |
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EP3023376A1 true EP3023376A1 (en) | 2016-05-25 |
Family
ID=54185814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15002695.3A Withdrawn EP3023376A1 (en) | 2014-10-17 | 2015-09-17 | Textile machine with circuit cards and circuit card |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3023376A1 (en) |
JP (1) | JP2016079039A (en) |
CN (1) | CN105523440A (en) |
DE (1) | DE102014015382A1 (en) |
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2014
- 2014-10-17 DE DE102014015382.7A patent/DE102014015382A1/en not_active Withdrawn
-
2015
- 2015-09-17 EP EP15002695.3A patent/EP3023376A1/en not_active Withdrawn
- 2015-10-13 CN CN201510756399.0A patent/CN105523440A/en active Pending
- 2015-10-16 JP JP2015204212A patent/JP2016079039A/en active Pending
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JP2001029553A (en) * | 1999-07-16 | 2001-02-06 | Heiwa Corp | Power device for pachinko machine |
US20050130491A1 (en) * | 2003-12-12 | 2005-06-16 | Chirkes Norberto J. | Automobile compact fuse holder |
US20080231410A1 (en) * | 2004-04-20 | 2008-09-25 | Frank Anthony Doljack | RFID Open Fuse Indicator, System, and Method |
US20070257807A1 (en) * | 2004-09-10 | 2007-11-08 | Darr Matthew R | Circuit protector monitoring assembly |
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DE202009002852U1 (en) * | 2009-02-27 | 2009-06-18 | Leoni Bordnetz-Systeme Gmbh | fuse assembly |
EP2562114A2 (en) | 2011-08-24 | 2013-02-27 | Murata Machinery, Ltd. | Textile machine and information transmission system for textile machine |
CN202978151U (en) * | 2012-10-31 | 2013-06-05 | 深圳市圳华伟业科技发展有限公司 | Attached-type cable insurance branching box |
Also Published As
Publication number | Publication date |
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CN105523440A (en) | 2016-04-27 |
JP2016079039A (en) | 2016-05-16 |
DE102014015382A1 (en) | 2016-04-21 |
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