KR100872866B1 - Dimmer system with self diagnosis - Google Patents

Abstract

A dimmer system for performing self-diagnosis is provided to block the power supply to a dimmer with trouble and prevent circuit damage due to an overload. A dimmer(10) includes an overload preventing unit(12), an input value check unit(14), a solid state relay(16), an output check value unit(18), a controller(20), and a memory(22) for performing the self diagnosis. A dimmer controls brightness of at least one luminous body connected to oneself, determines the generation of the trouble by checking a voltage value and current values of the input power and the output power, and blocks a neutral line and a conductive line when the trouble occurs and transmits the signal to inform the trouble to the outside. A dimmer system for performing the self-diagnosis is connected to at least one dimmer. A dimmer control device blocks corresponding dimmer according to the control setting value when the signal to inform the trouble of the dimmer is inputted.

Description

Dimmer system that performs self-diagnosis {DIMMER SYSTEM WITH SELF DIAGNOSIS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimmer system for performing self-diagnosis. In particular, a dimmer system that checks for an abnormal occurrence such as leakage or short circuit of current and stably cuts leakage current in case of leakage and short circuit of current, protects its circuit It is about.

Dimmer means an electric machine that adjusts or changes the illuminance of illumination light. Dimmers have been generally used in theaters, television studios, and various exhibitions, but home dimmers are currently being used. Types of dimmers include a resistor type for inserting a metal resistor into an electric circuit, a transformer type for changing a voltage with a transformer, and a semiconductor type using a semiconductor. In the past, a resistor or a transformer was used a lot, but nowadays, with the development of semiconductors, semiconductor dimming methods are widely adopted. The reason for this is that in the case of resistor type and transformer type, the control of the dimmer is mechanically complicated, and the configuration of the control device is complicated and the size of the control device is limited, but in the case of the semiconductor type, the weak charge operation is possible, thus simplifying the configuration. This can be achieved by miniaturization, remote control or automatic control of the dimmer. Rectifiers using semiconductor dimming are also known as solid state relay (SSR) dimmers. A dimmer using a solid state relay (SSR) can control a large power supply by using a solid state relay (SSR) as a switching element and applying a weak signal voltage to the gate of the solid state relay (SSR). Can be controlled. In addition, in the case of a dimmer using a solid-state relay (SSR), it is possible to remotely control a large-capacity dimmer. A communication protocol called DMX512 was enacted as a standard protocol for remote control of the dimmer.

On the other hand, the dimmer is connected to the dimmer control device and can be controlled by the dimmer control device. The dimmer control device may control the plurality of dimmers. Such dimmer control devices are generally manufactured in the form of a console.

In general, a plurality of dimmers are connected to the dimmer control device. In other words, if a leakage or short circuit of current occurs in a dimmer system including a dimmer and a dimmer control device, the leakage or short circuit of this current does not occur in all of the dimmers connected to the dimmer control device, but rather a dimmer connected to the dimmer control device. It is common for some of these to occur. However, at present, it is not possible to identify a dimmer in which current leakage or a short circuit has occurred and a dimmer in normal operation without such an abnormality. The inability to distinguish between a dimmer or a normally operating dimmer means that the entire dimmer system is unusable due to leakage of current or short circuit in some dimmers. It means you can't cope with it efficiently.

In addition, in the case of a dimmer system including a plurality of dimmers, the system is supplied with a large amount of current to operate the plurality of dimmers. Such a large amount of current may adversely affect other dimmers when an abnormality occurs in some dimmers and may cause an abnormality even in the normally operating dimmers.

That is, for efficient management of the dimmer system, a dimmer system having a self-diagnosis function for identifying a dimmer in which leakage or short circuit of current occurs and protecting its circuit from the leakage or short circuit of current is required.

Accordingly, an object of the present invention is to provide a dimmer system for performing self-diagnosis capable of checking for an abnormality such as leakage or short circuit of current.

Another object of the present invention is to provide a dimmer system for identifying a dimmer in which an abnormality such as leakage of current or a short circuit occurs and performing self-diagnosis to stably cut off power supply to the dimmer in which the abnormality occurs.

In one aspect of the present invention for achieving the above object, the dimmer system for performing a self-diagnosis, at least one light emitter whose brightness is adjusted by an input control signal, and adjusts the brightness of the light emitter, It may include a dimmer for judging whether an abnormality has occurred by checking the voltage value and current value of the input power and the voltage value and current value of the output power, and blocking phase and neutral wires connected to the self when an abnormality occurs. have.

The dimmer is an input value check unit for measuring the voltage value and current value of the power input to the self, and adjusts the amount of the input power to output to the light emitting body, and when the abnormality occurs to cut off the phase conductor and the neutral wire A contactless relay, an output value checker for measuring a voltage value and a current value of a power source output from the contactless relay, a voltage value and a current value of a power source input from each of the input value checker and an output value checker, And a controller configured to receive a voltage value and a current value of a voltage, determine whether a dimmer is abnormal by using the voltage value and the current value of the voltage and the current value of the input power and control the contactless relay. can do.

The dimmer may further include an overload prevention part that cuts off the phase conductive wire and the neutral wire in front of the input value check part when an overload of the power input to the dimmer occurs.

The dimmer may further include a memory for storing information required for the determination of the abnormality and the control of the contactless relay.

The controller may accumulate and integrate the use voltage and the use time of the dimmer, adjust the use time according to the integration result, and store the accumulated integration result in the memory.

The memory stores program data required for controlling the dimmer, and the controller may adjust the brightness of the light emitter using the program data stored in the memory.

The dimmer may further include a display unit which outputs whether an abnormality thereof occurs.

In another aspect of the present invention for achieving the above object, the dimmer system for performing a self-diagnosis, and adjusts the brightness of at least one light emitter connected to it, the voltage value and current value of the power input to it is output, At least one dimmer for determining whether an abnormality is generated by checking a voltage value and a current value of a power supply, and blocking phase conducting wires and neutral wires connected to the abnormality, and transmitting a signal informing the occurrence of the abnormality to the outside; The controller may include a dimmer control device connected to the at least one dimmer and blocking the dimmer when a signal indicating an abnormal occurrence of the dimmer is input from any dimmer connected thereto.

The dimmer control device may store a control setting value for the dimmer in advance and control the dimmer according to the stored setting value.

The control setting value for the dimmer may include at least one of control setting for one dimmer, group setting or cue setting for serial control of a plurality of dimmers, and effect setting in combination with group setting or cue setting. have.

The dimmer and the dimmer control device may be connected by the DMX512 communication protocol.

The dimmer and the dimmer control device may each include a display unit which outputs its own operating state or whether an abnormality has occurred.

The dimmer accumulates its own use voltage and use time and outputs it to the dimmer control device, and the dimmer control device can control the dimmer using the cumulative integration value of the use voltage and the use time received from the dimmer. have.

As described above, the dimmer system according to the present invention checks whether or not an abnormality such as leakage of current or short circuit occurs for each of the plurality of dimmer stores included in the system, blocks the dimmer in which the abnormality occurs, and generates an abnormality. Keep dimmers running. In addition, the present invention in the blocking of the dimmer in which the abnormality occurs, it is possible to reliably block the circuit due to the overload by blocking both lines of the neutral wire and the phase conductor, and to prevent damage to the circuit due to the overload. This enables efficient and stable use of the dimmer.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of an embodiment of a dimmer system for performing self-diagnosis according to the present invention.

As shown in FIG. 1, the dimmer system according to the present invention may be configured to include a dimmer represented by a luminaire and a dimmer 10 for adjusting the brightness of the dimmer. The number of light emitters that may be connected to one dimmer 10 may be determined according to the total capacity of the light emitters connected to the dimmer 10 and the capacity of the dimmer 10. The total capacity of the light emitters connected to one dimmer 10 should not exceed the capacity of the dimmer 10. The brightness of the light emitter is controlled by the dimmer 10.

The dimmer 10 is a self-diagnosis function that can determine whether an abnormality is generated and cut off the power input to itself when an overload occurs, in order to prevent damage to the circuit due to an overload when an abnormality occurs due to leakage or short circuit of current. Do this. Whether an abnormality occurs in an arbitrary dimmer 10 may be determined by checking a voltage value and a current value of the dimmer. Therefore, the dimmer 10 according to the present invention, the overload protection unit 12, the input value check unit 14, a solid state relay (SSR) 16, the output value check unit 18 for performing the self-diagnostic function , The controller 20 and the memory 22 may be configured.

The overload prevention unit 12 cuts off the power source input to the dimmer when an overload occurs, thereby preventing the circuit of the dimmer from being damaged due to the overload. The overload prevention unit 12 may stably cut off the power supply by blocking both the phase conductive wire and the neutral wire when an overload occurs. The blocking of the power using the overload protection unit 12 will be described later in detail with reference to specific embodiments.

The input value checker 14 checks the operation state of the overload protector 12 by measuring a current value and a power value of the power inputted through the overload protector 12 and measures the amount of power input to the dimmer. . The result of the operation state check of the overload protection unit 12 and the measured value of the input power amount may be output to the controller 20 and used to check the state of the dimmer.

The solid state relay (SSR) 16 operates according to a control signal input from the control unit 20. The power input to the dimmer is output to the light emitter through the contactless relay 16, and the contactless relay 16 adjusts the amount of power output to the light emitter under the control of the controller 20. On the other hand, when an abnormality occurs in the dimmer, the contactless relay 16 may cut off the power supplied to the dimmer. In the contactless relay 16 according to the present invention, when the power supply is cut off due to an abnormal occurrence, by blocking both the phase conductive wire and the neutral wire, the leakage of the current does not occur, and performs a stable power interruption. The abnormality in the dimmer or whether the power is cut off may be determined by the controller 20.

The output value check unit 18 is adjusted by the contactless relay 16 to measure the current value and the voltage value of the power output to the light emitter. The value measured by the output value check unit 18 is output to the control unit 20 to use the state check of the dimmer.

The controller 20 may determine whether an abnormality occurs in the dimmer using the measured values received from the input value checker 14 and the output value checker 18. For example, if the amount of power input to the dimmer is not the same as the amount of power output from the dimmer, the controller 20 may determine that an abnormality such as leakage of current or short circuit occurs in the dimmer. When it is determined that an abnormality has occurred in the dimmer, the controller 20 may generate a control signal instructing to cut off the power of the dimmer and output it to the contactless relay 16. In addition, the controller 18 may adjust brightness of at least one light emitter connected to the dimmer. The controller 18 generates and outputs a control signal for adjusting the brightness of the light emitter, and the control signal output by the controller 18 may adjust the brightness of the light emitter through the contactless relay 16.

The control unit 18 monitors the operation state of the dimmer 10 by checking the voltage value and the current value passing through the contactless relay (SSR) 16 through the output value check unit 18, and applying the dimmer 10. Keep checking the voltage capacity and the current voltage. The controller 18 monitors whether the total used voltage capacity of the light emitter connected to the dimmer 10 exceeds the applied voltage capacity of the dimmer 10 and checks for leakage of current or occurrence of disconnection. The total used voltage capacity of the light emitter may be obtained by measuring the amount of power output to the light emitter, and the applied voltage capacity of the dimmer may be obtained from product information on the dimmer. Information required for the implementation of the present invention, such as the applied voltage capacity of each dimmer, is preferably stored in the dimmer, which can be stored in the memory 22 of the dimmer.

On the other hand, the controller 18 accumulatively accumulates the use voltage and the use time of the dimmer 10 and adjusts the use time of the dimmer 10 according to the result of the control of the dimmer 10 due to the excessive use of the dimmer 10. To prevent wear and to check the service time of the dimmer 10. The inspection unit of the use time of the dimmer 10 may be set in units such as days, months, and years. Data such as the use voltage of the dimmer 10 and the accumulated time of the dimmer 10 may be stored in the memory 22 of each dimmer 10.

The controller 18 may include a program for controlling the dimmer 10 and the light emitter connected to the dimmer 10, and the embedded program may be changed by an external operation. The program for controlling the light emitter may be stored in the memory 22 of each dimmer 10.

On the other hand, the dimmer system according to the present invention may be configured such that the dimmer is remotely controlled by the dimmer control device connected via the communication line. Hereinafter, a dimmer system capable of remote control by the dimmer control device will be described.

2 is a configuration diagram according to another embodiment of the dimmer system for performing self-diagnosis according to the present invention.

FIG. 2 shows a dimmer system for performing control of the dimmer 10 shown in FIG. 1 using the dimmer control device 30 connected to the outside of the dimmer. At least one dimmer 10 may be connected to one dimmer control device 30. Each dimmer 10 and the dimmer control device 30 are connected by a communication line such as RS-485 and a DMX512 communication protocol. Remote control between the dimmer 10 and the dimmer control device 30 may be performed through transmission and reception of signals by the DMX512 communication protocol. That is, the dimmer 10 and the dimmer control device 30 may be installed at a remote location.

By being connected to the dimmer 10 and the dimmer control device 30 by a communication line, it becomes possible to remotely control the dimmer 10 using the dimmer control device 30. The operator of the dimmer system shown in FIG. 2 can control all the dimmers 10 connected to the dimmer control device 30 using the dimmer control device 30 without having to directly control each dimmer 10. It becomes possible.

The dimmer 10 illustrated in FIG. 2 may have the same structure as the dimmer 10 illustrated in FIG. 1. However, since the control of the dimmer 10 is performed by the dimmer control device 30 connected to the outside, a program for controlling the dimmer 10 does not need to be built in the dimmer 10. The dimmer control device 30 may control the dimmer 10 according to an input from an operator or control the dimmer 10 according to a preset program.

In the dimmer system including the plurality of dimmers 10, the dimmer control device 30 checks the dimmer 10 in which leakage or short-circuit of the current has occurred, and the remaining dimmer 10, that is, the dimmer in which the current has not leaked. Allow (10) to continue to be used. As described above, the present invention can improve the efficiency of the dimmer by allowing the dimmer to which no current is leaked.

The dimmer control device 30 continuously checks the applied voltage capacity of each dimmer 10 and the current use voltage. As a result, for the dimmer whose current use voltage exceeds the applied voltage capacity, the dimmer control device 30 cuts off the power supplied to the dimmer 10. Shutdown of power can be achieved through a solid-state relay.

Meanwhile, the dimmer control device 30 receives data obtained by accumulating and accumulating the use voltage and the use time of the corresponding dimmer 10 from each dimmer 10 and adjusts the use time of the dimmer 10 according to the result. Prevent the wear of the dimmer 10 due to excessive use of (10) and check the service time of the dimmer.

Of course, the dimmer control device 30 has a basic function of controlling the lighting by controlling the dimmer 10 connected thereto. Control of the lighting by the dimmer control device 30 may be performed for all operations of the lighting, such as turning on and off each lighting, adjusting the brightness of each lighting, adjusting the color of each lighting, and the like.

The adjustment of the illumination by the dimmer control device 30 is performed by a direct control input from the user through the dimmer control device 30 or by a control setting value for the dimmer which is stored in the dimmer control device 30 in advance. It can be made by. The control setting value for the dimmer may include a setting for controlling one dimmer or a setting for serial control of the plurality of dimmers. Serial control of the plurality of dimmers may be achieved by group setting, queue setting, and the like. Each group setting or cue setting may include a value for selecting a plurality of dimmers or lights to be controlled, brightness values of respective lights, color values of respective lights, and the like. In addition, an effect setting combining a group setting or a cue setting may be used. Effect settings enable various effects of lighting.

The dimmer control device 30 is generally configured to include at least buttons, faders, etc., for selecting and controlling each dimmer 10 connected thereto. In addition, the dimmer control device 30 may include a keypad for directly inputting a numerical value, or may include display means for confirming a control result.

Hereinafter, an example of the overload preventing unit 12 which cuts off both the phase conductive wire and the neutral wire to cut off the supply of power to the dimmer will be described with reference to the drawings.

3 is a diagram illustrating an embodiment of a circuit of a dimmer using a circuit breaker caused by an overload according to the present invention.

As shown in FIG. 3, the blocking circuit of the dimmer using the circuit breaker caused by overload according to the present invention connects the source 100 and the load 110, the source 100 and the load 110 of the dimmer. It may be configured to include an overload detection unit 120 coupled to the phase wire and neutral wire, the phase wire and the circuit breaker 200 coupled to both the phase wire and the neutral wire.

The overload detection unit 130 determines whether an overload occurs on the phase conducting wire, and if it is determined that an overload has occurred, the overload detection unit 130 outputs an overload instruction signal indicating this to the circuit breaker 130. When the circuit breaker 130 receives the overload instruction signal from the overload detector 130, the circuit breaker 130 blocks the current flowing on the phase conducting wire and the current flowing on the neutral wire correspondingly.

Determination of whether or not an overload occurs can be made through a variety of methods, for example, the method using a coil and the method using a bimetal.

Let's first explain how to use bimetals.

Bimetal is a rolling method of attaching two kinds of metal plates having different thermal expansion coefficients. Bimetal bends according to the change in temperature because the degree of expansion of the two metal plates is different according to the change in temperature. When such a bimetal is used in the overload detector, the bimetal can operate as a kind of switching means corresponding to the overcurrent. The reason is that when the overcurrent flows, heat is generated due to the overcurrent, and the heat generated causes the temperature of the bimetal to rise, which causes the bimetal to bend toward the low-expansion metal.

Next, let's explain how to use a coil.

One way to use a coil is to use the electromotive force generated by the current applied to the coil. As the current applied to the coil increases, the electromotive force generated by the coil also increases in proportion to it. Therefore, the overload can be detected by combining the coil and the switching means capable of operating with an electromotive force of a predetermined size or more. The reason is that when an overcurrent occurs, a large amount of current is applied to the coil, and this current generates an electromotive force large enough to operate the switching means, and the electromotive force enables the switching means to operate. to be.

As described above, the bimetal and the coil may operate as switching means that operate in response to the amount of current flowing on the circuit, and may notify the circuit breaker 200 of the overload through the switching operation. .

On the other hand, it is also possible to determine whether the overload occurs by measuring the amount of current directly. In this case, the overload detection unit 120 measures the amount of current flowing on the circuit, compares the measured current amount with a predetermined reference value, and if the measured current amount exceeds the reference value, the overload The command signal is generated and output to the circuit breaker 130.

As described above, the occurrence of overload may be determined by the amount of current flowing in the circuit, and may be determined by various methods such as a method of using bimetal, a method of using a coil, and a means of measuring the amount of current. have.

When the circuit breaker 130 is notified that the overload has occurred from the overload detection unit 120, the circuit breaker 130 cuts off the current flowing on the phase conducting wire and the current flowing on the neutral wire correspondingly. As the blocking means, a switching means is generally used.

As described above, the present invention connects the circuit breaker to both the phase conductor and the neutral wire connecting the source and the load of the dimmer, thereby blocking both the current flowing on the phase conductor and the neutral wire in the event of an overload on the circuit of the dimmer. To be able.

However, the current of the dimmer circuit does not flow as much as an overload, but an amount of current may flow that is not normal and may damage the circuit. In such a case, in the present invention, damage to the circuit can be prevented by using a method other than the interruption of the circuit.

Hereinafter, a state in which a current other than the steady state flows as described above will be referred to as a "semi-overload" state. That is, it may be determined that the semi-overload has occurred when the amount of current flowing on the circuit exceeds the first reference value and is less than the second reference value. Here, it is preferable that the highest current value that can be regarded as a steady state is set as the first reference value, and the lowest current value causing the overload is set as the second reference value. Of course, if desired, each of the first reference value and the second reference value may be any value within a range above the highest current value that can be considered as a steady state and below a lowest current value that may cause an overload. However, the second reference value should be higher than the first reference value.

The present invention can use the following two methods to prevent circuit damage under semi-overload conditions.

First, the first method will be described with reference to FIG. 4.

4 is a diagram according to another embodiment of the present invention, which illustrates a circuit of a dimmer using a circuit breaker due to an overload in which a differential circuit is blocked according to the amount of current flowing in the dimmer.

The first method is to feed back some of the current flowing on the circuit through the bypass path. The feedback of the current can be repeated until the amount of current flowing on the circuit is the amount of steady state current. The damage of the circuit can be prevented through the distribution of the current by this feedback. For such feedback, the circuit breaker 200 may further include a circuit for passing a current up to a predetermined reference amount and feeding the rest of the current back, and the circuit may be set to be activated only when a semi-overload occurs. Can be. The occurrence of the semi-overload may also be determined by the overload detection unit 120. When a signal indicating that the sub-overload has occurred is input to the circuit breaker 130, the feedback circuit may be activated.

The second method is to cut off only the current flowing through the top wire in the state of semi-overload, and cut off both the current flowing through the phase wire and the current flowing through the neutral wire in the state of overload. Since more current flows among the phase wires and the neutral wires, the phase wires are the phase wires, and therefore, the neutral wire may not flow to the neutral level in a semi-loaded state.

On the other hand, in order to shut off such a differential circuit, the overload detection unit 120 should be able to determine whether or not the quasi-load occurs. The overload detection unit 120 using the bimetal switch can distinguish the normal state, the semi-overload state, and the overload state according to the degree of curvature of the bimetal, and the overload detection unit 120 using the coil switch can be classified according to the amount of operation of the coil switch. The state may be distinguished, and the overload detection unit 120 using the current amount measuring means may distinguish each state by comparing the measured current amount with the first reference value and the second reference value.

That is, the present invention can perform the blocking of the circuit differentially according to the amount of current flowing on the circuit of the dimmer. This isolation of the circuit allows the dimmer to operate more efficiently.

On the other hand, the present invention can be applied even when a plurality of loads, that is, a plurality of lights are configured to be connected to one dimmer.

FIG. 5 is a diagram illustrating a circuit of a dimmer having a structure in which a plurality of loads are connected to one source according to another embodiment of the present invention. The blocking circuit illustrated in FIG. 5 includes a source 100, a plurality of loads 110 connected to the source 100, and circuit breakers 400 corresponding to each load 110. The loads 110 are connected in parallel to the source 100 through a phase wire and a neutral wire. Source 100 supplies current to loads 110. The circuit breaker 400 is connected to the front end of each load 110, and determines whether an overload occurs on the phase conductor or neutral wire connected to the load corresponding to it, and if it is determined that the overload has occurred, Shut off currents flowing on wires and neutrals. The circuit breaker 400 may be configured to include an overload detector for detecting whether an overload has occurred and a circuit breaker for blocking a current flowing in a circuit when an overload occurs. The overload detector checks the amount of current flowing on the phase conducting wire or the neutral wire, and determines that an overload has occurred when the amount of current exceeds a predetermined reference value.

FIG. 6 is a diagram according to another embodiment of the present invention, in which an overload is detected in one of a plurality of loads connected to a source, the current flowing through the phase wire connected to all the loads connected to the source; It is a figure which shows the interruption circuit of a dimmer.

The blocking circuit according to the embodiment shown in FIG. 6 can be effectively used especially when the operating conditions of the respective loads 110 are similar. For example, it is assumed that a plurality of loads 110 having the same resistance value and allowable current value are connected to the source 100. Under this assumption, the same amount of current flows through each of the loads 110. In this case, if an overload occurs in one load 110, the overload occurs in other loads 110 as well. In addition, when the current flowing in one load 110 is cut off, the amount of current flowing in the remaining loads 110 increases, thereby increasing the probability that an overload occurs in the remaining loads 110, and the remaining loads ( 110) may be damaged. In the present embodiment, when a plurality of loads 110 are connected to the source 100, the current flowing through all the loads 110 connected to the source 100 even when a load occurs only in some of the loads 110. Block it. This ensures efficient handling of overloads and prevents damage to the circuit. In this embodiment, even when an overload occurs in only one load 110 of the loads 110 connected to the source 100, the current flowing to all the loads 110 connected to the source 100 is blocked.

FIG. 7 is a block diagram illustrating an internal structure of the circuit breaker illustrated in FIG. 6.

The circuit breaker 400 may be configured such that the circuit breaker 400 includes an overload detector 120 that detects whether an overload occurs and a circuit breaker 130 that blocks a current flowing in a circuit when an overload occurs. . 6 and 7 illustrate an embodiment in which a circuit breaker 400 including an overload detector 120 and a circuit breaker 130 is connected only to a phase conducting wire. That is, in the embodiment shown in Figs. 6 and 7, the detection of overload and the interruption of current at the time of overload are performed only for the phase conducting wire.

FIG. 8 is a diagram according to another embodiment of the present invention. When overload is detected in one of a plurality of loads connected to a source, FIG. The figure shows the blocking circuit of the dimmer to cut off.

The circuit breaker 400 shown in FIG. 8 is coupled to all phase wires and neutral wires connected to the respective loads 110, and detects whether or not overload occurs for both phase wires and the neutral wires. Shut off the current flowing through both neutrals. The circuit breaker 400 shown in FIG. 8 also applies to the phase conductors and the neutral wires of all the loads 110 connected to the source 100 even when an overload occurs in only one load 110 connected to the source 100. Shut off the flowing current.

1 is a block diagram of an embodiment of a dimmer system for performing self-diagnosis according to the present invention.

2 is a configuration diagram according to another embodiment of the dimmer system for performing self-diagnosis according to the present invention.

3 is a diagram illustrating a circuit of a dimmer using a circuit breaker due to an overload according to an embodiment of the present invention.

4 is a diagram according to another embodiment of the present invention, illustrating a circuit of a dimmer using a circuit breaker due to an overload in which a differential circuit is blocked according to the amount of current flowing in the dimmer.

FIG. 5 is a diagram illustrating a circuit of a dimmer having a structure in which a plurality of loads are connected to one source according to another embodiment of the present invention.

FIG. 6 is a diagram according to another embodiment of the present invention, in which an overload is detected in one of a plurality of loads connected to a source, the current flowing through the phase wire connected to all the loads connected to the source; It is a figure which shows the interruption circuit of a dimmer.

FIG. 7 is a block diagram illustrating an internal structure of the circuit breaker illustrated in FIG. 6.

FIG. 8 is a diagram according to another embodiment of the present invention. When overload is detected in one of a plurality of loads connected to a source, FIG. The figure shows the blocking circuit of the dimmer to cut off.

Claims (13)

delete delete delete delete delete delete delete In a dimmer system that performs self diagnostics, Adjusts the brightness of at least one light emitter connected to the self, and checks the voltage value and the current value of the power input to the self, and checks the voltage value and the current value of the output power to determine whether the abnormality occurs. At least one dimmer for blocking the phase wires and the neutral wire connected to the at least one dimmer and transmitting a signal informing of the occurrence of an abnormality to the outside; Wow And a dimmer control device connected to the at least one dimmer and blocking a dimmer when a signal indicating an abnormal occurrence of the dimmer is input from any dimmer connected to the dimmer. The method of claim 8, The dimmer control device pre-stores a control setting value for the dimmer and controls the dimmer according to the stored setting value. The method of claim 9, The control setting value for the dimmer includes at least one of a control setting for one dimmer, a group setting or a cue setting for serial control of a plurality of dimmers, an effect setting in combination with a group setting or a cue setting. A dimmer system for performing self-diagnosis. The method of claim 8, Dimmer system for performing self-diagnosis, characterized in that the connection of the dimmer and the dimmer control device is made by the DMX512 communication protocol. The method of claim 8, The dimmer and the dimmer control device, each of the dimmer system for performing a self-diagnosis, characterized in that it comprises a display unit for outputting its operating state or abnormality. The method of claim 8, The dimmer accumulates its own use voltage and use time and outputs it to the dimmer control device. The dimmer control device performs a self-diagnosis, characterized in that for controlling the dimmer using the cumulative integration value of the use voltage and the use time received from the dimmer.

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