Short-circuit and cable break monitoring device for gates

Abstract

Control device (1) for actuating and monitoring the closing and opening process of a gate, comprising a gate control (2), electrical lines (3) that can be laid on a building, electrical lines (5) that can be laid on a movable gate leaf (4) of the gate, and electrical gate safety elements (6) such as switches, light barriers, etc., as well as flexible electrical lines (7) which can be laid between the building and the door leaf (4) and which connect the two first electrical lines (3, 5) to one another, wherein the electrical lines (3, 5, 7) and the electrical door safety elements (6) form an electrical circuit, characterized in that an evaluation module (8) is arranged in the electrical circuit which is designed to check at least one parameter of the electrical circuit of the door and / or a parameter of the electrical lines (7) which can be flexibly laid between the building and the door leaf (4) and which connect the two first electrical lines (3, 5) to one another for a predetermined value.

Description

[0001] The invention relates to a control device for actuating and monitoring the closing and opening process of a gate, an evaluation module, an electrical consumer and / or generator for generating a parameter to be tested, a flexible cable and a gate according to claims 1, 11, 13, 15 and 17. State of the art:

[0002] Gates, especially industrial gates, are typically closed using motorized, movable gate leaves. To ensure safe operation, the closing and opening processes of such gates are monitored by safety devices such as switches. These switches monitor, for example, the cable tension or the slippage of the gate drive.

[0003] The electrical connection between the relevant door control system, which is usually permanently mounted on the building in which the door is located, and the electrical safety devices arranged on / at the door leaf, or their electrical connecting cables, which are also arranged on / at the door leaf, is generally made by means of a flexible, movable connecting cable, for example a spiral cable.

[0004] One problem with flexible electrical cables is that they can become damaged over time, for example, due to a cable break or a short circuit.

[0005] The object of the invention is to provide a possibility by means of which the electrical cables of such a door control system, in particular for older doors, so-called existing doors, can be reliably checked for cable breaks and / or short circuits if they are not already designed for this at the factory.

[0006] This problem is solved based on the preambles of claims 1, 11, 13, 15, and 17 by their characterizing features. Advantageous and expedient developments are specified in the dependent claims.

[0007] Accordingly, according to a first aspect, the invention relates to a control device for actuating and monitoring the closing and opening process of a door, comprising a door control, electrical lines that can be laid on a building, electrical lines that can be laid on a movable door leaf of the door and electrical door safety elements such as switches, light barriers, etc., as well as flexible electrical lines that can be laid between the building and the door leaf and connect the two former electrical lines to one another, wherein the electrical lines and the electrical door safety elements form an electrical circuit.The control device is characterized in that an evaluation module is arranged in the circuit, which is designed to check at least one parameter of the gate's circuit and / or a parameter of the electrical lines that can be flexibly laid between the building and the gate leaf and that connect the two former electrical lines to each other, for a predetermined value.

[0008] If the parameter is recognized as correct, no cable break or short circuit is detected. In this case, the door control unit can continue to receive other signals transmitted from the door leaf to the door control unit and, if requested, control the door drive accordingly.

[0009] However, if an incorrect value is detected for the parameter being checked, the gate drive is prevented from operating. The gate control system detects this and shuts down.

[0010] Alternatively, the evaluation module can also send a signal to the door control to actively cause it to switch off and, if necessary, signal a fault.

[0011] Preferably, an electrical load and / or generator is arranged in the circuit, which forms and / or generates the at least one parameter to be tested. This allows a specific parameter intended for the test purpose to be generated.

[0012] Depending on the type of circuit the door leaf or the door control is equipped with, the consumer and / or generator can be integrated into it in different ways.

[0013] In a so-called “normally closed contact” circuit, the consumer and / or generator can be arranged in a series circuit in the circuit.

[0014] In a “normally open contact” circuit, the consumer and / or generator can be arranged in a parallel circuit in the circuit.

[0015] It is advantageous to vary the resistance value of the consumer if both are required at the same time in order to distinguish between short circuits and cable breaks.

[0016] According to one embodiment, the electrical load and / or generator can be an electrical resistor. This can have an ohmic and / or a capacitive and / or an inductive resistance component. For example, particularly long or spirally wound cables themselves can also represent an inductive component of the impedance. The evaluation module can apply a voltage to the circuit. In one embodiment of the invention, it is also conceivable for the evaluation module to apply an alternating voltage, so that, depending on the frequency, the inductive or capacitive component of the impedance makes a larger contribution to the parameter. The cable itself can then also form part of the impedance or the load.

[0017] According to an alternative embodiment, the electrical load and / or generator can also be an electrical component that causes a voltage swing, in particular a diode. This allows cable problems to be identified particularly clearly.

[0018] However, it is also possible for the electrical load and / or generator to be designed as an electrical signal generator. This could, for example, generate / carry out a periodic interruption of the closed circuit at a specified frequency. This periodic signal is then recognized by the evaluation module as a release signal, instead of the resistance. Any deviation from the signal, e.g., due to a short circuit or cable break, is then detected as an actuation. In another design, the safety signal can also be superimposed. This also enables particularly clear detection of a cable break or similar event.

[0019] In order to be able to reliably monitor the entire length of the flexible, movable cable for short circuits and / or cable breaks, the evaluation module is arranged in the electrical circuit between the electrical cables that can be laid on the building and the flexible electrical cables that can be laid between the building and the door leaf.

[0020] In the same sense, the electrical consumer and / or generator is arranged between the flexible electrical cables and the electrical cables that can be laid on the movable door leaf of the door in the electrical circuit, i.e. at the end of the flexible cables.

[0021] The invention also relates to an evaluation module for installation in or connection to a control device, wherein the control device is designed to actuate and monitor the closing and opening process of a door and comprises a door control, electrical cables that can be laid on a building, electrical cables that can be laid on a movable door leaf of the door and electrical door safety elements such as switches, light barriers, etc., as well as flexible electrical cables that can be laid between the building and the door leaf and connect the two former electrical cables to one another, wherein the electrical cables and the electrical door safety elements form an electrical circuit.The evaluation module is characterized in that it is designed to check at least one parameter of the electrical circuit of the gate and / or a parameter of the electrical lines that can be flexibly laid between the building and the gate leaf and that connect the two former electrical lines to each other for a predetermined value, at least when the gate is at rest.

[0022] This has the particular advantage that the evaluation module can be made available as a retrofit module / integrated into the control system of existing gates already installed in order to ensure short-circuit and / or cable break monitoring for the spiral cable in question if this is not provided by the manufacturer.

[0023] In order to ensure that as few components as possible of the existing gate have to be replaced or modified during retrofitting, the evaluation module is equipped with plug-in connections for connection to the electrical cables permanently installed on the building or the gate control system and / or to the flexible electrical cables that can be installed between the building and the gate leaf.

[0024] Furthermore, the evaluation module is designed in such a way that it can be flexibly adapted to different systems from different manufacturers with regard to cable assignment.

[0025] Furthermore, the invention also relates to an electrical consumer and / or generator for installation in or for connection to a control device, wherein the control device is designed to actuate and monitor the closing and opening process of a door and comprises a door control system, electrical cables that can be laid on a building, electrical cables that can be laid on a movable door leaf of the door and electrical door safety elements such as switches, light barriers, etc., as well as flexible electrical cables that can be laid between the building and the door leaf and connect the two former electrical cables to one another, wherein the electrical cables and the electrical door safety elements form an electrical circuit, wherein the evaluation module is designed to check at least one parameter of the electrical circuit of the door and / or a parameter of the flexible electrical cables that can be laid between the building and the door leaf and connect the two former electrical cables to one another for a predetermined value, at least when the door is at rest. The electrical consumer and / or generator is characterized in that it forms the at least one parameter to be checked by the evaluation module.

[0026] This provides an easy-to-install unit for reliable testing of short-circuit and cable break monitoring.

[0027] Also encompassed by the invention is a flexible electrical cable that can be flexibly laid between a building and the door leaf of a door for installation in or connection to a control device, wherein the control device is designed to actuate and monitor the closing and opening process of a door and comprises: a door control, electrical cables that can be laid on the building, electrical cables that can be laid on a movable door leaf of the door and electrical door safety elements such as switches, light barriers, etc., as well as the flexible electrical cable which can be laid between the building and the door leaf and connects the two former electrical cables to one another, wherein the electrical cables and the electrical door safety elements form an electrical circuit, wherein an evaluation module is arranged in the electrical circuit which is designed to check at least one parameter of the electrical circuit of the door and / or a parameter of the electrical cables which can be flexibly laid between the building and the door leaf and connect the two former electrical cables to one another, for a predetermined value, at least when the door is at rest. This is characterized in that the evaluation module is arranged in or on the flexible electrical cable and / or an electrical consumer and / or generator which forms the at least one parameter to be checked by the evaluation module.

[0028] This provides short-circuit and cable break monitoring, which can be easily replaced. If available, using plug-in connections. Otherwise, using cable clamps, for example.

[0029] Finally, the invention also relates to a gate and a control device for actuating and monitoring the closing and opening process of the gate, comprising a gate control, electrical cables that can be laid on a building, electrical cables that can be laid on a movable gate leaf of the gate and electrical gate safety elements such as switches, light barriers, etc., as well as flexible electrical cables which can be laid between the building and the door leaf and which connect the two former electrical cables to one another, the electrical cables and the electrical door safety elements forming an electrical circuit, the control device being characterized in that an evaluation module is arranged in the electrical circuit which is designed to check at least one parameter of the electrical circuit of the door and / or a parameter of the electrical cables which can be flexibly laid between the building and the door leaf and which connect the two former electrical cables to one another for a predetermined value, at least when the door is at rest.

[0030] In summary, the invention is about monitoring the wiring of safety elements on gates for short circuits and cable breaks. Typically, switches for monitoring cable tension or wicket door control on the moving gate leaf are connected to a spiral cable to the gate control system. These switches are safety elements. For this reason, a gate requires short-circuit and / or cable break monitoring for the lines to these switching elements. Character description:

[0031] The invention is described in more detail below with reference to the attached figure.

[0032] The only Fig. Figure 1 shows a control device 1 for controlling a door equipped with a door leaf 4. The control device 1 comprises a door control 2 and electrical lines 3, 5, and 7, by means of which the electrical components of the control device 1 are connected.

[0033] The lines 3 are arranged on a building surrounding the gate, and the lines 5 are arranged on the gate leaf 4, which moves with the gate. Safety elements for monitoring the safe operation of the gate, e.g., switches for monitoring the cable tension or wicket door, are connected to the lines 5.

[0034] In order to electrically connect these lines 3 and 5, flexible electrical lines are arranged, e.g. in the form of a spiral cable, which moves each time the gate is opened and closed.

[0035] In order to ensure reliable detection of the switching states / signals of the safety components / switches 6 by the gate control 2, it is necessary to check the electrical cables 3, 5, in particular the flexible cable 7, for short circuits or cable breaks.

[0036] For this purpose, an electrical load and / or generator 9 and an evaluation module 8 for generating and monitoring a specific electrical parameter are arranged in the wiring. The distributor 10 generally refers to a branching point in the circuit or another electronic component at which the signals to and from the switches and safety components 6 converge or are distributed. List of reference symbols: 1 control device 2 Gate control 3 electrical cables 4 Door leaf of a gate 5 electrical cables 6 Gate safety element 7 electrical cables 8 Evaluation module 9 electrical consumer and / or generator 10 distributors

Claims

[1] Control device (1) for actuating and monitoring the closing and opening process of a gate, comprising a gate control (2), electrical lines (3) that can be laid on a building, electrical lines (5) that can be laid on a movable gate leaf (4) of the gate and electrical gate safety elements (6) such as switches, light barriers, etc., as well as flexible electrical lines (7) that can be laid between the building and the gate leaf (4) and connect the two former electrical lines (3, 5) to one another, wherein the electrical lines (3, 5, 7) and the electrical gate safety elements (6) form an electrical circuit, characterized bythat an evaluation module (8) is arranged in the circuit, which is designed to check at least one parameter of the gate's circuit and / or a parameter of the electrical lines (7) that can be laid flexibly between the building and the gate leaf (4) and that connect the two former electrical lines (3, 5) to one another for a predetermined value. [2] Control device (1) according to claim 1, characterized by that an electrical consumer and / or generator (9) is arranged in the circuit, which forms and / or generates the at least one parameter to be tested. [3] Control device (1) according to claim 1 or 2, characterized by that the consumer and / or generator (9) is arranged in a series circuit in the circuit. [4] Control device (1) according to claim 1 or 2, characterized by that the consumer and / or generator (9) is arranged in a parallel circuit in the circuit. [5] Control device (1) according to one of the preceding claims, characterized by that the electrical consumer and / or generator (9) is an electrical resistance and / or an impedance. [6] Control device (1) according to one of the preceding claims, characterized by that the electrical resistance and / or the impedance has an ohmic and / or a capacitive and / or an inductive resistance component. [7] Control device (1) according to one of the preceding claims, characterized by that the electrical consumer and / or generator (9) is an electrical component which causes a voltage swing, in particular a diode. [8] Control device (1) according to one of the preceding claims, characterized by that the electrical consumer and / or generator (9) is an electrical signal generator. [9] Control device (1) according to one of the preceding claims, characterized bythat the evaluation module (8) is arranged in the electrical circuit between the electrical cables (3) that can be laid on the building and the flexible electrical cables (7) that can be laid between the building and the door leaf (4). [10] Control device (1) according to one of the preceding claims, characterized by that the electrical consumer and / or generator (9): • is arranged in the electrical circuit between the flexible electrical cables (7) and the electrical cables (5) that can be laid on the movable door leaf (4) of the door and / or • forms part of at least one of the electrical lines (3, 5, 7). [11] Evaluation module (8) for installation in or connection to a control device (1), wherein the control device (1) is designed to actuate and monitor the closing and opening process of a door and comprises a door control (2), electrical lines (3) that can be laid on a building, electrical lines (5) that can be laid on a movable door leaf (4) of the door and electrical door safety elements (6) such as switches, light barriers, etc., as well as flexible electrical lines (7) that can be laid between the building and the door leaf (4) and connect the two former electrical lines (3, 5) to one another, wherein the electrical lines (3, 5, 7) and the electrical door safety elements (6) form an electrical circuit, characterized bythat the evaluation module (8) is designed to check at least one parameter of the electrical circuit of the gate and / or a parameter of the electrical lines (7) which can be laid flexibly between the building and the gate leaf (4) and which connect the two former electrical lines (3, 5) to one another for a predetermined value. [12] Evaluation module (8) according to claim 9, characterized by that the evaluation module (8) is provided with plug connections for connection to the electrical cables (3) that can be permanently laid on the building or the door control (2) and / or to the flexible electrical cables (7) that can be laid between the building and the door leaf (4). [13] Electrical consumer and / or generator (9) for installation in or connection to a control device (1), wherein the control device (1) is designed to actuate and monitor the closing and opening process of a door and comprises a door control (2), electrical cables (3) that can be laid on a building, electrical cables (5) that can be laid on a movable door leaf (4) of the door and electrical door safety elements (6) such as switches, light barriers, etc., and flexible electrical lines (7) which can be laid between the building and the door leaf (4) and which connect the two first electrical lines (3, 5) to one another, wherein the electrical lines (3, 5, 7) and the electrical door safety elements (6) form an electrical circuit, wherein the evaluation module (8) is designed to check at least one parameter of the electrical circuit of the door and / or a parameter of the flexible electrical lines (7) which can be laid between the building and the door leaf (4) and which connect the two first electrical lines (3, 5) to one another for a predetermined value, at least when the door is at rest. characterized by that the electrical consumer and / or generator (9) is designed to have at least one parameter to be checked by the evaluation module (8). [14] Electrical consumer and / or generator (9) according to claim 13, characterized bythat the electrical consumer and / or generator (9) is designed as part of at least one of the electrical lines (3, 5, 7). [15] Flexible electrical cable (7) which can be flexibly laid between a building and the door leaf (4) of a door for installation in or connection to a control device (1), wherein the control device (1) is designed to actuate and monitor the closing and opening process of a door and comprises: a door control (2), electrical cables (3) which can be laid on the building, electrical cables (5) which can be laid on a movable door leaf (4) of the door and electrical door safety elements (6) such as switches, light barriers, etc., as well as the flexible electrical line (7) which can be laid between the building and the door leaf (4) and connects the two first electrical lines (3, 5) to one another, wherein the electrical lines (3, 5, 7) and the electrical door safety elements (6) form an electrical circuit, wherein an evaluation module (8) is arranged in the electrical circuit, which is designed to check at least one parameter of the electrical circuit of the door and / or a parameter of the electrical lines (7) which can be flexibly laid between the building and the door leaf (4) and connect the two first electrical lines (3, 5) to one another for a predetermined value, at least when the door is at rest. characterized by that in or on the flexible electrical cable (7): • the evaluation module (8) is arranged and / or • an electrical consumer and / or generator (9) which forms at least one parameter to be checked by the evaluation module (8). [16] Flexible electrical cable (7) according to claim 15, which can be laid flexibly between a building and the door leaf (4) of a door, characterized by that the evaluation module (8) and / or the electrical consumer and / or generator (9), which forms the at least one parameter to be checked by the evaluation module (8), is / are arranged cast in the flexible electrical line (7). [17] Gate and control device (1) for actuating and monitoring the closing and opening process of the gate, comprising a gate control (2), electrical lines (3) that can be laid on a building, electrical lines (5) that can be laid on a movable gate leaf (4) of the gate and electrical gate safety elements (6) such as switches, light barriers, etc., as well as flexible electrical lines (7) that can be laid between the building and the gate leaf (4) and connect the two former electrical lines (3, 5) to one another, wherein the electrical lines (3, 5, 7) and the electrical gate safety elements (6) form an electrical circuit, characterized bythat an evaluation module (8) is arranged in the circuit, which is designed to check at least one parameter of the gate's circuit and / or a parameter of the electrical lines (7) which can be laid flexibly between the building and the gate leaf (4) and which connect the two former electrical lines (3, 5) to one another, for a predetermined value, at least when the gate is at rest.

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