JP2024032650A - control panel - Google Patents

Abstract

The present invention provides a control panel that can further reduce the installation cost for controlling the operation of each electrical device in coordination with other electrical devices. SOLUTION: A control panel 1 enables interlock control of a plurality of shutter devices 40 in a factory 2, a warehouse 3, etc., for example. In the factory 2, the warehouse 3, etc., the number of actually installed shutter devices 40 and the content of interlock control differ between the factory 2, the warehouse 3, etc. Therefore, the control panel 1 can be set according to the number of shutter devices 40 and the content of interlock control. By enabling such settings, high versatility of the control panel 1 is realized. Therefore, the control panel 1 can be widely applied to factories 2, warehouses 3, etc., and can be widely sold. [Selection diagram] Figure 1

Description

The present invention relates to a control panel.

For example, in a factory, there are cases where it is required to suppress the inflow of outside air into the manufacturing space where products are manufactured. In order to suppress the inflow of outside air, the operation of one shutter device may be controlled depending on the state of the other shutter devices, which are electrical devices installed at each entrance and exit. A typical example of such control is interlock control in which the number of shutter devices that can open the opening/closing body, that is, allow outside air to flow in, is limited to only one shutter device among a plurality of shutter devices. When this interlock control is adopted, the inflow of outside air caused by opening the opening/closing body of the shutter device is suppressed. By suppressing the inflow of outside air, changes in temperature within the manufacturing space and inflow of insects, dust, etc. are also suppressed.

Japanese Patent Application Publication No. 2005-54411

Interlock control for multiple shutter devices can be achieved by equipping the shutter device with a function for that purpose and transmitting and receiving signals between the multiple shutter devices equipped with that function. (For example, see Patent Document 1). However, when using such a shutter device, the more the number of shutter devices to be subjected to interlock control increases, the more complicated the wiring for transmitting and receiving signals between the shutter devices becomes. For this reason, a control panel compatible with interlock control is provided, and the operation of each shutter device is controlled by the control panel. With interlock control using the control panel, all you need to do is send and receive signals between each shutter device and the control panel, so the wiring is simpler than when it is possible to send and receive signals between each shutter device. .

The number of shutter devices subject to interlock control and the content of the control, that is, the specifications of the interlock control, usually differ from factory to factory. Therefore, conventionally, control panels have been individually manufactured and installed according to the interlock control specifications.

However, manufacturing a control panel requires tedious work. The manufactured control panel must be checked to see if it works properly, and if it is confirmed that it does not work properly, the cause must be identified and work must be done to remove the identified cause. It won't happen. For this reason, interlock control using a control panel requires a large burden to manufacture the control panel, which is a factor that increases the cost of introducing interlock control.
Note that this also applies to the case where the operation of each electrical device is controlled in conjunction with other electrical devices, such as a door, window, or gate, other than the shutter device.

An object of the present invention is to provide a control panel that can further reduce the introduction cost for controlling the operation of each electrical device in cooperation with other electrical devices.

A control panel according to an aspect of the present disclosure includes an information input means for inputting state information representing the state of each of a plurality of electrical devices to be controlled, and a setting according to content to be cooperated between the plurality of electrical devices. and a signal generation means for generating a management signal for managing the operation of each electric device according to the setting using the status information inputted for each electric device by the information input means.

According to the present invention, the introduction cost for controlling the operation of each electrical device in cooperation with other electrical devices can be further reduced.

FIG. 3 is a diagram illustrating an application example of the control panel according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a method in which the control panel according to the first embodiment of the present invention controls each shutter device. FIG. 3 is a diagram illustrating an example of the internal arrangement of a control panel according to the first embodiment of the present invention. It is a figure explaining the example of the content of interlock control possible by the control panel concerning the 1st embodiment of the present invention. It is a figure explaining the example of the circuit formed in the control board concerning the 1st embodiment of the present invention. It is a figure explaining the example of the circuit formed in the control board concerning the 2nd embodiment of the present invention. It is a figure explaining the example of a circuit formed in the control board concerning the 2nd embodiment of the present invention (continued). It is a figure explaining the example of the content of interlock control of 2-to-5 and 2-to-5 modification. It is a figure explaining the example of the circuit formed in the control board concerning the 3rd embodiment of the present invention. It is a figure explaining the example of the content of the interlock control further enabled by the control panel based on the 3rd Embodiment of this invention. It is a figure explaining the example of a structure of a relay switch, and the example of the mechanism which short-circuits a relay switch. FIG. 7 is a diagram showing a configuration example of a generation circuit group in a fourth embodiment. It is a figure explaining the example of the back of the door of the control panel concerning the 4th embodiment of the present invention. FIG. 6 is a diagram illustrating an example of the contents of interlock control assumed for five shutter devices. FIG. 7 is a diagram showing an example of the configuration of a generation circuit group in a fifth embodiment. It is a figure explaining the example of the back of the door of the control panel concerning the 5th embodiment of the present invention. FIG. 7 is a diagram illustrating an example of the content of interlock control assumed for nine shutter devices.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Note that the embodiments described below are merely examples, including modifications, and the technical scope of the present invention is not limited thereto. The technical scope of the present invention also includes various modifications.

(First embodiment)
FIG. 1 is a diagram illustrating an application example of a control panel according to a first embodiment of the present invention.
This control panel 1 was produced mainly for the purpose of sale. In FIG. 1, the sales destination is assumed to be a business entity that owns a factory 2, a warehouse 3, etc. The electrical equipment controlled by the control panel 1 is assumed to be a shutter device 40 installed in the factory 2 or the warehouse 3, respectively. For convenience, only the shutter device 40 that is controlled by the control panel 1 is shown. This shutter device 40 is an opening/closing device to be controlled in this embodiment.

In one factory 2, the interior is divided into a loading/unloading space 21 and a manufacturing space 22. One shutter device 40 is arranged between the carry-in/out space 21 and the outside, and three shutter devices are arranged between the carry-in/out space 21 and the manufacturing space 22. The operation of these four shutter devices 40 in total is controlled by the control panel 1.

The loading/unloading space 21 is primarily a space for temporarily storing items to be shipped. The manufacturing space 22 is a space for manufacturing products, and in many cases, a plurality of manufacturing devices are installed.

On the other hand, in one warehouse 3, the interior is divided into a loading/unloading space 31 and a chilled zone space 32. Two shutter devices 40 are installed between the loading/unloading space 31 and the outside, and three shutter devices 40 are installed between the loading/unloading space 31 and the chilled zone space 32. The operation of these five shutter devices 40 in total is controlled by the control panel 1. Note that the chilled zone space 32 is a space provided for cooling brought items (mainly food).

Here, in order to facilitate understanding, the following explanation will be given assuming that the control panel 1 performs typical interlock control. In order to distinguish the shutter devices 40 depending on the installation location such as the factory 2 shown in the plan cross-sectional view, one shutter device 40 installed between the loading/unloading space 21 and the outside may be designated as a "front shutter" as necessary. Also referred to as "device 40". The three shutter devices 40 arranged between the loading/unloading space 21 and the manufacturing space 22 are also referred to as "rear shutter devices 40" if necessary.

As shown in the example in FIG. 1, the internal structures of both the factories 2 and warehouses 3 are different for each factory 2 and each warehouse 3. Depending on the internal structure, not only the installation location and the number of shutter devices installed differ, but also the contents of interlock control, that is, the contents of the cooperative operation between the shutter devices 40. In the factory 2 shown in the plan cross-sectional view, for example, one-to-three interlock control is performed in which none of the three rear shutter devices 40 can be opened unless one front shutter device 40 is closed. be exposed. In the warehouse 3, for example, similarly, 2-to-3 interlock control is performed in which none of the three rear shutter devices 40 can be opened unless both of the two front shutter devices 40 are in the closed state. .

In this way, the specifications required for interlock control usually differ for each factory 2 and each warehouse 3. For this reason, the control panel 1 has a high level of versatility by being compatible with a plurality of interlock control specifications, and can be widely applied to each of the factories 2 and warehouses 3. Thereby, even the manufactured control panel 1 can be widely sold for use in interlock control in factories 2 and warehouses 3 with different specifications required for interlock control.

FIG. 2 is a diagram illustrating an example of how the control panel according to the first embodiment of the invention controls each shutter device.
The shutter device 40 controlled by the control panel 1 is of a type that opens and closes a sheet 401 as an opening/closing body, for example. Although not particularly shown, a shaft for winding up and feeding out the sheet 401, a motor as a power source for rotating the shaft, and the like are housed in the case 402 provided at the top.

In order to properly open and close the seat 401, the shutter device 40 is provided with a pair of rails 403 that guide the seat 401 to be opened and closed. An operation panel 404 is provided on one side of the rail 403 and is capable of instructing opening and closing operations of the seat 401. The case 402 is provided with a sensor 405 that can detect a person, a vehicle, a stationary object, or the like as a detection target. This sensor 405 enables the sheet 401 to be automatically rolled up into an open state upon detection of a detection target.

The controller 400 performs operations on the operation panel 404 and opening/closing operations of the seat 401 according to the detection results of the sensor 405 . In order to open and close the seat 401, the controller 400 controls the drive of a motor inside the case 402.
This controller 400 is compatible with interlock control. For this reason, FIG. 2 shows that the open/close state signal and the interlock signal are transmitted and received between the control panel 1 and the controller 400. In addition, in this embodiment, the opening/closing state signal corresponds to state information, the state signal, and the interlock signal correspond to a management signal, respectively.

The open/close state signal is a signal indicating whether the seat 401 is in the open state or not. The controller 400 activates an open/close state signal, for example, when the open state is even slightly. For this reason, unless otherwise specified, the closed state of the shutter device 40 is used to refer to the state in which the sheet 401 is completely lowered. All other states are expressed as open states. Note that the controller 400 determines the open/closed state of the seat 401 using, for example, a position detection result by a position sensor (for example, a Hall element) for detecting a rotational position provided in the motor. The open/closed state may be determined using another sensor or in combination with another sensor.

Each shutter device 40 subject to interlock control is normally in a closed state. The interlock signal is a signal for interlock control. In interlock control, it is necessary to limit which shutter devices 40 can be operated. For this reason, the interlock signal is, for example, inactive in the shutter device 40 that is enabled, and active in the shutter device 40 that is not enabled. The control panel 1 performs interlock control for a plurality of shutter devices 40 by generating an interlock signal to be sent to each shutter device 40 using open/close state signals sent from each shutter device 40. make it happen.

Note that the configuration of the shutter device 40 is not limited to that shown in FIG. 2. Furthermore, the electrical equipment subject to interlock control is not limited to the shutter device. The electrical equipment may be a door, a window, a gate, or the like, or may be a manufacturing device installed in the factory 2. There may be more than one type of electrical equipment. For example, it may be a combination of multiple shutter devices and manufacturing equipment. As a result, for example, while the manufacturing apparatus is in operation, a plurality of shutter devices may be rendered inoperable, and interlock control may be performed in which no shutter device is allowed to open. For this reason, the type of electrical equipment, the combination of electrical equipment, the content of interlock control, etc. are not particularly limited. Interlock control is not the only type of control that allows one electrical device to cooperate with another electrical device, so it may be a control other than interlock control. Therefore, the cooperative control here refers to control that limits the operation of one electrical device depending on the state of one or more other electrical devices.

FIG. 3 is a diagram illustrating an example of the internal arrangement of the control panel according to the first embodiment of the present invention.
As shown in FIG. 3, inside the casing 11 of the control panel 1, there are a power supply (PS) 12, a relay group 13, a first terminal block group 14, and a second terminal block group 15. It is located.

As will be described in detail later, each relay 131 included in the relay group 13, each terminal block 100 included in the first terminal block group 14, and the second terminal block group 15 is formed on the control panel 1. It is a component of the circuit.
Each relay 131 is, for example, an electromagnetic relay having a relay coil and a plurality of contacts. In both relays 131, contacts are used as switches to turn on/off current. For this reason, from now on, the contact will also be referred to as a switch.

Each terminal block 100 is provided with terminals 101 at both ends, and the two terminals 101 are electrically connected. Each terminal block 100 has a portion that can be used to represent a character string, such as the numerical value shown in each terminal block 100 constituting the second terminal block group 15. The terminal block 100 is used in this embodiment to make it easier for workers to make appropriate connections by utilizing that portion.

In the second terminal block group 15, as shown in FIG. 3, the same numerical value is shown on two terminal blocks 100. This is because two terminal blocks 100 are used to configure one terminal pair T. Details of this terminal pair T will be described later. Also in the first terminal block group 14, most of the terminal blocks 100 are used as a terminal block pair D, which is a combination of two terminal blocks 100.

FIG. 4 is a diagram illustrating an example of the content of interlock control possible by the control panel according to the first embodiment of the present invention. All examples of the content of interlock control shown in FIGS. 4(a) to 4(h) are based on the assumption that the control panel 1 has the layout example shown in FIG. 3. Thereby, the control panel 1 is capable of performing interlock control in a total of eight ways for up to five shutter devices 40.

In FIG. 4, all circled numbers 1 to 5 represent one shutter device 40. The straight lines drawn between the circled numbers 1 to 5 represent the two shutter devices 40 that are linked together. In addition, expressions such as "1 to 2" and "2 to 3" represent the number of front shutter devices 40 and the number of rear shutter devices 40. Therefore, for example, "2 to 3" means that there are two front shutter devices 40 and three rear shutter devices 40. Further, in a situation where any of the front shutter devices 40 is in the open state, all the rear shutter devices 40 are operated from the closed state due to the straight line drawn from each front shutter device 40 to all the rear shutter devices 40. This indicates that the closed state is maintained. It also represents that in a situation where any of the rear shutter devices 40 is in the open state, all the front shutter devices 40 cannot be operated from the closed state. The interlock control that divides the shutter device 40 into either the front shutter device 40 or the rear shutter device 40 will be collectively referred to as "classified interlock control" hereinafter. Classified interlock control is performed in both a factory 2 and a warehouse 3, both of which are shown in a cross-sectional plan view in FIG.

Furthermore, the expressions “3 units,” “4 units,” and “5 units” indicate that interlock control is performed to enable only one of the three to five shutter devices 40 to be in the open state. represents. The straight line drawn between each shutter device 40 represents that the state of one shutter device 40 affects the operation of all other shutter devices 40. Interlock control that treats all shutter devices 40 in the same manner will hereinafter be collectively referred to as "unclassified interlock control."

FIG. 5 is a diagram illustrating an example of a circuit formed in a control panel according to the first embodiment of the present invention. This circuit example also assumes the control panel 1 having the layout example shown in FIG.
The numbers "R1" to "R5" shown in FIG. 5 all represent the correspondence with the shutter device 40 shown by the circled numbers 1 to 5 in FIG. 4. Thereby, for example, "R1" is a relay coil that constitutes the relay 131 associated with the shutter device 40 represented by a circled number 1. In order to clarify this correspondence, "R1c" is added as a symbol. In order to clarify this correspondence, for example, the relay 131 having the relay coil R1c is also written as the relay R1.

An open/close state signal from the shutter device 40, represented by a circled number 1, is supplied to the relay coil R1c via the terminal block 100. Similarly, an open/close state signal from the shutter device 40, represented by a circled number 2, is supplied to the relay coil R2c via the terminal block 100. Since such a correspondence relationship is assumed, in this embodiment, the terminal block 100 is adopted for connecting the signal line to which the open/close state signal is output, and information representing the signal line to be connected is stored in each terminal block 100. It is shown in the figure below. Note that in cases where there is no need to specify the relay coil, "Rc" is used as the code for the relay coil.

As described above, the relay 131 includes, in addition to the relay coil Rc, a relay switch that is turned on or off when a current flows through the relay coil Rc. For the same reason as the relay coil Rc, these switches are given symbols such as "R1s" and "R2s." This makes it clear that the relay switch R1s and the relay coil R1c are components included in the same relay R1. In cases where there is no need to specify the relay switch, "Rs" is used as the code for the relay switch. Note that when the relay switch Rs is on, it means that a current flows through the relay switch Rs. When the relay switch Rs is off, it means that no current flows through the relay switch Rs.

The terminal pair T makes it possible to override the associated relay switch or switches Rs. The symbols "T1", "T2", "T3", etc. in FIG. 5 are symbols representing one specific terminal pair T. As a result, "T" is a symbol that does not represent a specific pair of terminals.
As shown in FIG. 3, the terminal pairs T that constitute the second terminal block group 15, that is, the two terminal blocks 100, have the same numbers. The number following "T" is the same as the number shown on the two terminal blocks 100. This clarifies the correspondence between the symbol and the terminal pair T to which the symbol is attached. Hereinafter, "T" will be used as a generic symbol for a terminal pair or as a symbol for an unspecified terminal pair.

The power supply unit 12 converts AC power into DC power. One terminal block pair D in the first terminal block group 14 is used for inputting AC power. A circuit protector (CP) 18 is arranged between one terminal block pair D and the power supply unit 12. Thereby, the AC power input from one terminal block pair D is supplied to the power supply unit 12 via the circuit protector 18. The circuit protector 18, like the circuit protector 19, is a circuit breaker for overcurrent protection. Note that the two circuit protectors 18 and 19 are omitted in FIG. 3.
The first terminal block group 14 also includes a total of five terminal block pairs D for individually inputting open/close state signals from the shutter device 40, and a terminal block 100 for grounding the power supply section 12. do.

One terminal of the relay coils R1c to R7c and the LED (Light Emitting Diode) 17 is connected to the negative terminal of the power supply section 12, and the positive terminal is connected to each terminal block pair D for inputting the open/close status signal. It is connected to one terminal block 100 via a circuit protector 19. The other terminal block 100 of each terminal block pair D is connected to the other terminal of the relay coils R1c to R7c. Thereby, DC power is supplied to each shutter device 40 from the power supply section 12 of the control panel 1. For this reason, each shutter device 40 (its controller) manages, for example, the conduction of the supplied DC power and switches the open/close state signal between active and inactive. Here, it is assumed that each shutter device 40 activates the open/close state signal and sets the signal level to H (High) when the seat 401 is in the open state. When the seat 401 is in the closed state, the open/closed state signal is inactive, and the signal level is L (Low).

The other terminals of the relay coils R6c, R7c and the LED 17 are connected to the positive terminal of the power supply section 12 via the select switch 16. The select switch 16 disconnects the LED 17 from the positive terminal when the relay coils R6c and R7c are connected to the positive terminal, and conversely disconnects the relay coil R6c and the LED 17 from the positive terminal when the LED 17 is connected to the positive terminal. R7c is disconnected from the positive terminal.

In this way, the first terminal block group 14 is mainly used for inputting open/closed state signals, inputting AC power, and the like. Thereby, the first terminal block group 14 is used to set the position of each shutter device 40 in interlock control. This setting corresponds to a setting in which each shutter device 40 is associated with one of the circled numbers 1 to 5, when the shutter devices 40 are represented by circled numbers 1 to 5, as shown in FIG. Therefore, when performing classification type interlock control, this setting also corresponds to classifying the shutter device 40 into either the front shutter device 40 or the rear shutter device 40. The first terminal block group 14 corresponds to information input means in this embodiment.

The circuit formed by the control panel 1 also includes a generation circuit group 110 for generating interlock signals. This generation circuit group 110 includes generation circuits for the number of shutter devices 40 that enable interlock control. Each of these generation circuits is designated with one of the symbols 111 to 115. Here, symbols are not used unless there is a need to specify them. In other words, the codes 111 to 115 are used only when it is necessary to specify the generating circuit.

The generation circuits 111 to 115 are for generating interlock signals to be transmitted to the shutter device 40, which are indicated by circled numbers 1 to 5 in FIG. In other words, the generation circuit 111 is a shutter device 40 represented by a circle number 1, the generation circuit 112 is a shutter device 40 represented by a circle number 2, and so on.The generation circuits 111 to 115 are shutter devices represented by a circle number 1 to 5. 40. The generation circuits 111 to 115 themselves are connected to different terminal block pairs D of the first terminal block group 14. For this reason, each shutter device 40 needs to be connected to the terminal block pair D to be connected in accordance with the association of the shutter device 40, similarly to the open/close state signal. Thereby, for example, the shutter device 40 represented by a circled number 1 is connected to the terminal block pair D connected to the relay coil R1c for outputting the open/closed state signal, and to the generation circuit 111 for inputting the interlock signal. It is necessary to connect it to two of the terminal block pair D. From this, the first terminal block group 14 is configured to associate each shutter device 40 with any of the circled numbers 1 to 5 when the shutter devices 40 are represented by the circled numbers 1 to 5 shown in FIG. It is used for

In the generation circuit 111, a terminal pair T5 is connected in parallel to the relay switch R2s, a terminal pair T12 is connected in parallel to the relay switch R4s, and a terminal pair T10 is connected in parallel to the relay switch R5s. Further, a relay switch R6s is connected between the terminal block pair D to which the generation circuit 111 is connected.

In the generation circuit 112, a terminal pair T6 is connected in parallel to the relay switch R1s, a terminal pair T1 is connected in parallel to the relay switches R3s to R5s, a terminal pair T13 is connected to the relay switch R4s, and a terminal pair T11 is connected in parallel to the relay switch R5s. . Further, a relay switch R6s is connected between the terminal block pair D to which the generation circuit 112 is connected.

In the generation circuit 113, a terminal pair T2 is connected in parallel to the relay switches R2s, R4s, and R5s, a terminal pair T7 is connected in parallel to the relay switches R4s and R5s, and a terminal pair T14 is connected in parallel to the relay switch R5s. Further, a relay switch R6s is connected between the terminal block pair D to which the generation circuit 113 is connected.

In the generation circuit 114, a terminal pair T3 is connected in parallel to the relay switches R2s, R3s, and R5s, a terminal pair T8 is connected in parallel to the relay switches R3s and R5s, and a terminal pair T15 is connected in parallel to the relay switch R5s. Further, a relay switch R6s is connected between the terminal block pair D to which the generation circuit 114 is connected.

In the generation circuit 115, a terminal pair T4 is connected in parallel to the relay switches R2s to R4s, and a terminal pair T9 is connected in parallel to the relay switches R3s and R4s. Furthermore, a relay switch R7s is connected between the terminal block pair D to which the generation circuit 115 is connected.

The number of terminals connected to relay switch Rs is finite. The reason why the relay switch R7s is connected to the generation circuit 115 is that the terminal connected to the relay switch R6s is insufficient. From this, when a relay R6 having a relay switch R6s with a larger number of terminals is adopted, the relay R7 can be omitted.

All of the generation circuits 111 to 115 activate the interlock signal only when the terminal block pair D to which they are connected is electrically connected. Thereby, each generation circuit 111 to 115 switches the interlock signal between active and inactive by blocking/conducting the signal from the shutter device 40 connected via the terminal block pair D.

For this reason, the generation circuit group 110 corresponds to the signal generation means in this embodiment. In reality, the relay group 13 and the first terminal block group 14 are also required to generate the interlock signal. Therefore, it is possible to interpret that the relay group 13 and the first terminal block group 14 are also included in the signal generation means in this embodiment.

Relay switches R6s and R7s are components of relays R6 and R7, and are of a type that closes and conducts when current flows through relay coils R6c and R7c. The relay coils R6c and R7c can be connected/disconnected to the positive terminal of the power supply section 12 by a select switch 16. When the select switch 16 connects the relay coils R6c and R7c to the positive terminal of the power supply unit 12, current flows through the relay coils R6c and R7c, and the terminal block pairs D of all the generation circuits 111 to 115 are short-circuited. Therefore, all of the generation circuits 111 to 115 activate their interlock signals while current is flowing through relay coils R6c and R7c.

Note that the relay switches other than the relay switches R6s and R7s, that is, the relay switches R1s to R5s, are of a type that closes and becomes conductive when no current flows through the relay coils R1c to R5c. Thereby, the relay switches R1s to R5s cut off electrical connection when the open/close state signal is active. When the shutter device 40 is not connected to the terminal block pair D for the open/close state signal, the closed state is always maintained.

The select switch 16 interrupts the electrical connection between the LED 17 and the positive terminal of the power source 12 when the relay coils R6c and R7c are connected to the positive terminal of the power source 12. Therefore, in that situation, the LED 17 is turned off. On the other hand, when the relay coils R6c and R7c are not connected to the positive terminal of the power supply unit 12, the LED 17 is connected to the positive terminal of the power supply unit 12, and the LED 17 lights up.

For this reason, the LED 17 serves as an indicator light that indicates whether interlock control is enabled or not depending on whether it is lit or not. The select switch 16 is a switch for switching between enabling and disabling interlock control. The LED 17 is provided, for example, on the outer surface of the lid of the housing 11 so that it can be easily confirmed whether or not the interlock control is enabled.

Next, a method for setting the control panel 1 in which a circuit as shown in FIG. 5 is formed will be described in more detail.
As described above, the first terminal block group 14 is for connection with the shutter device 40 that is subject to interlock control. The worker positions each shutter device 40 to be subjected to interlock control in one of the shutter devices 40 indicated by circled numbers 1 to 5 in FIG. 4 so as not to overlap. Depending on the positioning, the terminal block pair D to be connected in the first terminal block group 14 for input/output of the open/close state signal of each shutter device 40 and the interlock signal is determined. Therefore, the operator only has to connect each shutter device 40 to two terminal block pairs D determined by positioning.

The second terminal block group 15 is a target for setting to generate appropriate interlock signals to each shutter device 40. This setting is performed by connecting the terminal pairs T to be connected according to the number of shutter devices 40 to be subjected to interlock control and the specifications of the interlock control.

Specifically, settings for the second terminal block group 15 according to the number of shutter devices 40 subject to interlock control and the specifications of the interlock control may be performed as follows. Here, each case in FIGS. 4(a) to 4(h) will be explained.

In the case shown in FIG. 4A, that is, 1:2 classification type interlock control, settings may be made to connect the terminal pairs T1, T2, T10, and T12.
With this setting, if any of the shutter devices 40 associated with the circled number 1, 2, or 3 is in the open state, the shutter device 40 associated with the circled number 1 will The lock signal becomes active and operation from the closed state is no longer possible. If both of the shutter devices 40 associated with the circled number 2 and the circled number 3 are in the open state, the interlock signal becomes active. , it becomes impossible to operate from the closed state. When the shutter device 40 associated with the circled number 1 is in the closed state, the shutter devices 40 associated with the circled numbers 2 and 3 are closed regardless of the state of the other rear shutter devices 40. It becomes possible to operate the system without any problems. Hereinafter, the shutter device 40 associated with the circled number 1 will be expressed as "No. 1 shutter device 40" or the like. This also applies to the shutter devices 40 associated with any of the circled numbers 2 to 5.

In the case shown in FIG. 4(b), that is, 1:3 classification type interlock control, settings may be made to connect the terminal pairs T1, T2, T3, and T10.
With this setting, the No. 1 shutter device 40 cannot be operated from the closed state if any of the No. 2 to 4 shutter devices 40 is in the open state. If the first shutter device 40 is in the open state, none of the second to fourth shutter devices 40 can be operated from the closed state. When the No. 1 shutter device 40 is in the closed state, the No. 2 to 4 shutter devices 40 can be operated regardless of the states of the other rear shutter devices 40.

In the case shown in FIG. 4C, that is, 1:4 classification type interlock control, settings may be made to connect the terminal pairs T1, T2, T3, and T4.
With this setting, the No. 1 shutter device 40 cannot be operated from the closed state if any of the No. 2 to 5 shutter devices 40 is in the open state. If the first shutter device 40 is in the open state, none of the second to fifth shutter devices 40 can be operated from the closed state. The second to fifth shutter devices 40 can be operated regardless of the states of the other rear shutter devices 40 when the first shutter device 40 is in the closed state.

In the case shown in FIG. 4(d), that is, 2-to-2 classification type interlock control, settings may be made to connect the terminal pairs T5, T6, T7, and T8.
With this setting, both the first and second shutter devices 40 cannot be operated from the closed state if either of the third and fourth shutter devices 40 is in the open state. When the No. 3 and No. 4 shutter devices 40 are all in the closed state, the No. 1 and No. 2 shutter devices 40 can be operated regardless of the state of the other front shutter devices 40. . On the other hand, the third and fourth shutter devices 40 cannot be operated from the closed state if either the first or second shutter device 40 is in the open state. When the first and second shutter devices 40 are both in the closed state, they can be operated regardless of the state of the other rear shutter devices 40.

In the case shown in FIG. 4E, that is, 2-to-3 classification type interlock control, settings may be made to connect the terminal pairs T5, T6, T7, T8, and T9.
With this setting, both the No. 1 and No. 2 shutter devices 40 cannot be operated from the closed state if any of the No. 3 to 5 shutter devices 40 is in the open state. When all of the No. 3 to No. 5 shutter devices 40 are in the closed state, the No. 1 and No. 2 shutter devices 40 can be operated regardless of the states of the other front shutter devices 40. On the other hand, the shutter devices 40 No. 3 to 5 cannot be operated from the closed state if either the shutter devices 40 No. 1 or 2 are in the open state. When the first and second shutter devices 40 are both in the closed state, they can be operated regardless of the state of the other rear shutter devices 40.

In all of the cases shown in FIGS. 4(f) to 4(h), that is, unclassified interlock control for 3 to 5 units, no setting is required to connect the terminal pairs T.
This is because all of the generation circuits 111 to 115 are connected in series with a relay switch Rs that is turned on/off by an open/close state signal from a shutter device 40 other than the assumed shutter device 40. Therefore, in each shutter device 40, when any of the other shutter devices 40 to be linked is in the open state, the interlock signal becomes active in the shutter devices 40 other than the shutter device 40 that is in the open state. It becomes impossible to operate from the closed state.

In this way, the control panel 1 whose circuit example is shown in FIG. 5 is compatible with any of the cases shown in FIGS. 4(a) to 4(h). Because of this high versatility, the control panel 1 can be widely sold for interlock control in factories 2, warehouses 3, etc., as shown in FIG. 1. Since it can be widely sold, mass production is also possible, and manufacturing costs are lower than when manufacturing individually. Further, the control panel 1 can be provided in a timely manner to businesses that need it. Because of these advantages, it can be expected that there will be a high demand for the control panel 1.

In this embodiment, by connecting the pair of terminals T to be connected, settings are made according to the interlock control specifications. When this kind of setting is performed, the setting itself becomes easier than when the setting is performed under software control. This is because there is no need to remember the operations on the control panel 1 necessary for setting. Further, higher reliability can also be achieved. This is because failures due to heat, dust, dirt, etc. are less likely to occur because no electronic components are used. There are such advantages in employing the configurable generation circuits 111 to 115 to generate the interlock signal.

In the present embodiment, both classified interlock control and non-classified interlock control are supported, but it is also possible to support only one of them. That is, the control panel 1 may be prepared separately for classified interlock control and non-classified interlock control. The number of shutter devices 40 that can perform interlock control is five at most, but six or more shutter devices 40 may be supported.

In the above description, it is assumed that each shutter device 40 is arranged at a position indicated by a circled number from 1 to 5, as shown in FIG. However, in interlock control, the arrangement of positions represented by circled numbers 1 to 5 may be changed depending on specifications (control details). By changing the arrangement, cases other than those described above can be accommodated.

For example, in 2-to-1 classified interlock control, the circled numbers 2 and 3 may be used as the front shutter device 40, and the circled number 1 may be used as the rear shutter device 40. When each shutter device 40 is connected to the terminal block pair D in accordance with such an arrangement, settings may be made to connect the terminal pair T5 and T6. As a result, both of the two front shutter devices 40 cannot be operated from the closed state if one of the rear shutter devices 40 is in the open state. Further, the rear shutter device 40 cannot be operated from the closed state unless all of the two front shutter devices 40 are in the closed state.
This is an example other than the case shown in FIG. There are other compatible interlock control specifications.

Further, in this embodiment, it is assumed that interlock control is possible for up to five shutter devices 40, but depending on the number of shutter devices 40 that are subject to interlock control, the control panel 1 may be The configuration may be changed. For example, the number of relays 131 may be increased or decreased depending on the number of shutter devices 40 that are subject to interlock control. For this reason, for example, the relay 131 attached to the control panel 1 may be sold separately, that is, the control panel 1 body and the relay 131 may be sold separately. This means that the signal generating means (generating circuit) provided in the control panel 1 may be incomplete. This also applies to the information input means (corresponding to the first terminal block group 14 here).

If such changes are made as necessary, the manufacturing cost (and selling price) of the control panel 1 will be reduced as the number of shutter devices 40 subject to interlock control decreases. This is especially advantageous for customers. However, settings must be made to connect the terminal pair T according to the relay 131 to be removed. For example, if the number of shutter devices 40 is four, the relay 131 associated with the fifth shutter device 40 is removed, so settings are required to connect the terminal pairs T10, T11, T14, and T15. Become.

(Second embodiment)
FIGS. 6 and 7 are diagrams illustrating an example of a circuit formed in a control panel according to the second embodiment of the present invention. FIG. 7 shows only the generation circuit group 110 and the first terminal block group 14 related to the generation circuit group 110, and FIG. 6 shows the rest. Here, the same or basically the same components as in the first embodiment are given the same reference numerals.

The control panel 1, circuit examples of which are shown in FIGS. 6 and 7, is compatible with six to nine shutter devices 40. More specifically, in the classified interlock control, 1 to 5, 1 to 6, 1 to 7, 1 to 8, 2 to 4, 2 to 5, 2 to 5 modification, 2 to 6, 2 to 7, It corresponds to 3 to 3, 3 to 4, 3 to 5, 3 to 6, etc. Non-classified interlock control supports 2 to 9 units.

In order to accommodate more shutter devices 40, in other words to ensure more terminals, there are two relays 131 to which open/close state signals from each shutter device 40 are supplied. In FIG. 6, for example, the relay coils Rc included in the relay coil R1c connected in parallel to the relay coil R1c are distinguished by different notations such as "R1" and "R1-1." However, since the function and method of use are the same, the reference numeral "R1c" is used for both.

The reason why there are two relays 131 is because one relay 131 cannot secure the terminals necessary for connecting the relay switch Rs. For the same reason, three relays R10 to R12 are provided for short-circuiting the generating circuits 111 to 119 that constitute the generating circuit group 110. Since the relays R1 to R12 are present as the relay 131, the relay coils R1c to R12c are present as the relay coil Rc, and the relay switches R1s to R12s are present as the relay switch Rs.

Similarly to the first embodiment, the generation circuits 111 to 119 include a relay switch Rs that is turned on/off by an open/close state signal from a shutter device 40 that is different from the shutter device 40 that is supposed to output an interlock signal. connected in series. Therefore, in the case of non-classified interlock control, settings for connecting the terminal pairs T present in the second terminal block group 15 are basically unnecessary. In the case of classified Internet control, it is necessary to make settings to connect the terminal pair T to be connected.

As the number of shutter devices 40 that can be supported increases, and as the range of the number of shutter devices 40 increases, the number of terminal pairs T required for setting also increases. In order to accommodate six to nine shutter devices 40, terminal pairs T1 to T47 are prepared as the terminal pairs T.

The larger the number of terminal pairs T, the more complicated the settings become, making it difficult to perform the settings easily. Interlock control for up to five shutter devices 40 is possible in the first embodiment. For this reason, it is useful to prepare the control panel 1 so that the number of corresponding shutter devices 40 does not overlap, in order to make settings easier. The number of required terminal pairs T can be further reduced, and the number of wirings for connecting the terminal pairs T can also be reduced, which is also useful in terms of further reducing manufacturing costs.

FIG. 8 is a diagram illustrating an example of the content of interlock control for 2-to-5 and 2-to-5 modification. FIG. 8(a) shows an example of interlock control in a 2-to-5 modification, and FIG. 8(b) shows an example of interlock control in a 2-to-5 modification.

The 2-to-5 interlock control shown in FIG. 8A assumes a total of seven shutter devices 40, two front shutter devices 40 and five rear shutter devices 40. Both the No. 1 and No. 2 shutter devices 40 cannot be operated from the closed state if any of the No. 3 to 7 shutter devices 40 is in the open state. When all of the shutter devices 40 No. 3 to 7 are in the closed state, the shutter devices 40 No. 1 and 2 can be operated regardless of the states of the other front shutter devices 40. On the other hand, the shutter devices 40 No. 3 to 7 cannot be operated from the closed state if either the shutter devices 40 No. 1 or 2 are in the open state. When the first and second shutter devices 40 are both in the closed state, they can be operated regardless of the state of the other rear shutter devices 40.

In the 2-to-5 modified interlock control shown in FIG. 8(b), the shutter devices 40 are arranged in three locations, and a total of seven shutter devices 40 are controlled. Here, the 3rd and 4th shutter devices 40 are also referred to as the front shutter device 40, the 1st and 2nd shutter devices 40 are also referred to as the middle shutter device 40, and the 5th to 7th shutter devices 40 are also referred to as the rear shutter device 40. do.

In the 2-to-5 variant interlock control, both the No. 3 and No. 4 shutter devices are operated from the closed state when either the No. 1 or No. 2 shutter device 40 is in the open state. I can't. When the first and second shutter devices 40 are all in the closed state, the third and fourth shutter devices 40 can be operated regardless of the state of the other front shutter devices 40. .

Both the No. 1 and No. 2 shutter devices cannot be operated from the closed state if any of the No. 3 to 7 shutter devices 40 is in the open state. When all of the shutter devices 40 No. 3 to 7 are in the closed state, the shutter devices No. 1 and 2 can be operated regardless of the states of the other middle shutter devices 40.

None of the fifth to seventh shutter devices 40 can be operated from the closed state if either the first or second shutter device 40 is in the open state. When the first and second shutter devices 40 are both in the closed state, they can be operated regardless of the state of the other rear shutter devices 40.

When nine relays 131 are installed on the control panel 1, the 2-to-5 modified interlock control shown in FIG. 8(b) is realized by setting the terminal pairs T12 to T18 to be connected. . Here, setting methods for interlock control in other cases will be omitted. Note that, similarly to the first embodiment, only the relays 131 corresponding to the number of shutter devices 40 to be subjected to interlock control may be attached to the control panel 1.

(Third embodiment)
FIG. 9 is a diagram illustrating an example of a circuit formed in a control panel according to a third embodiment of the present invention. Here, as in the second embodiment, the same or basically the same components as in the first embodiment are given the same reference numerals.

This embodiment, like the first embodiment, is capable of interlock control for up to five shutter devices 40.
In the first embodiment described above, by assuming in advance the specifications of the interlock control that can be handled, a plurality of terminal pairs T that can short-circuit two or more relay switches Rs are provided as shown in FIG. There is. Furthermore, among the relay switches Rs, there are some that cannot be short-circuited by the terminal pair T and cannot be disabled.

In contrast, in this embodiment, as shown in FIG. 9, terminal pairs T are individually connected in parallel to all relay switches Rs. Thereby, one relay switch Rs can be short-circuited by one terminal pair T. By employing such a circuit configuration, the present embodiment can accommodate a wider range of interlock control specifications than the first embodiment.

FIG. 10 is a diagram illustrating an example of the content of interlock control that is further enabled by the control panel according to the third embodiment of the present invention. As examples, FIGS. 10A to 10F show 1:3 transformation, 1:4 transformation, 2:2 transformation, 2:3 transformation, 4-unit transformation, and 5-unit transformation, respectively.

These modifications are 1 to 3, 1 to 4, 2 to 2, 2 to 3, 4 units, and This is an example of a modification based on 5 units. The base has one more line or one less line connecting the two shutter devices 40. Each base can add two or more wires or omit two or more wires. This means that for any modification, one or more other modifications are possible. Therefore, FIG. 10 shows an excerpt of an example of the content of interlock control that cannot be handled in the first embodiment.

In this embodiment, for example, the one-to-three interlock control shown in FIG. 4(b) can be realized by setting the terminal pairs T7 to T9 and T12 to T14 to be connected. Here, it is assumed that all relays 131 are attached.
10(a) can be realized by disconnecting the terminal pair T13 and T14 from the setting. Due to the release of these connections, the No. 3 shutter device 40 cannot be operated from the closed state even if not only the No. 1 shutter device 40 but also the No. 4 shutter device 40 are in the open state. Similarly, the No. 4 shutter device 40 cannot be operated from the closed state even if the No. 3 shutter device 40 is in the open state.

In addition to the one shown in FIG. 10(a), at least three other modifications are possible for the 1:3 transformation. This embodiment can accommodate any modification. Although a detailed explanation will be omitted, this also applies to each modification shown in FIGS. 10(b) to 10(f), other modifications among these modifications, and interlock control of specifications other than these. For this reason, this embodiment has higher versatility than the first embodiment, which is compatible with the same five shutter devices 40.

In the first to third embodiments, the relay switch Rs of the relay 131 is used in the generation circuit, but a switch other than the relay switch Rs may be used. Since the relay 131 is a contact relay, a non-contact relay, that is, a solid state relay, or a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) relay may be adopted as the relay 131. Accordingly, the switch may be included in a non-contact relay. In this case, the switch may be a switching element such as a transistor, for example. Thereby, the switch may be turned on/off directly by the open/close state signal output from each shutter device 40. For this reason, the configuration of the circuit formed in the control panel 1 including the generation circuit is not particularly limited, and various modifications are possible.

Such a switch may be used instead of the terminal pair T. The type of terminal block 100 that constitutes the terminal pair T is also not particularly limited. As the terminal block 100, for example, a push-in terminal block may be adopted. When a push-in terminal block is employed, not only connection can be made more easily, but also the area occupied by the first terminal block group 14 and the second terminal block group 15 can be made smaller.

Each shutter device 40 is directly connected to transmit and receive open/close state signals and interlock signals, but the open/close state signals and interlock signals are transmitted and received through another device. Also good. Thereby, each shutter device 40 does not need to be directly connected to the control panel 1. The method of generating the open/close state signal and the interlock signal, the method of handling the signal level, etc. are not particularly limited either. At least one of the active/inactive treatment and the signal level assumption may be reversed.

(Fourth embodiment)
The relay switch Rs of the relay 131 usually has a plurality of contacts as a switch. The multiple contacts include, for example, an A contact (make contact) that is open when no current flows through the relay coil Rc, a B contact (break contact) that is closed when no current flows through the relay coil Rc, and an A contact. It is a c-contact (transfer contact) that includes both a b-contact and a c-contact. The a contact and the b contact are contacts that open and close in opposite phases. The C contact is a contact that operates to connect with the B contact when no current is flowing through the relay coil Rc, and to connect with the A contact when current is flowing through the relay coil Rc.

In the first to third embodiments described above, the a contact or the b contact of each relay 131 is used as the relay switch Rs. In each relay 131 for generating an interlock signal, a b contact is used as a relay switch Rs.
The open/close state signal output by each shutter device 40 is active, that is, the signal level is H when the seat 401 is in the open state. When the signal level of the open/close state signal becomes H, a current flows. Therefore, in the first to third embodiments, a b contact is used as the relay switch Rs for generating the interlock signal. The reason why each shutter device 40 adopts a specification in which a b contact is used is because the period in which the shutter is in the closed state normally occupies a higher proportion of the total period. This specification (hereinafter referred to as "normal specification") can further reduce power consumption when compared to a specification (hereinafter referred to as "non-normal specification") in which the open/close state signal is active in the closed state.

However, the shutter device 40 may also have an unusual specification. As a result, in the entire shutter device 40, all the shutter devices 40 are divided into a case where only the normal specification is adopted (first case), a case where only the non-normal specification is adopted (second case), and a case where the normal specification is adopted. Three cases are possible: a case where non-normal specifications are mixed (third case). In the fourth embodiment, it is possible to deal with any of the three cases.

FIG. 11 is a diagram illustrating a configuration example of a relay switch and an example of a mechanism for short-circuiting the relay switch.
In FIG. 11, only the a contact Rsa and the b contact Rsb are shown as the relay switch Rs. This is because the relay switch Rs used to generate the interlock signal uses only one of the a contact Rsa and the b contact Rsb. In the normal specification shutter device 40, as shown in FIG. 11(a), a b contact Rsb is used. In the non-normal specification shutter device 40, as shown in FIG. 11(b), an a contact Rsa is used. Rsg in FIG. 11 is a relay switch group that is a plurality of relay switches Rs including an a contact Rsa and a b contact Rsb.

In this embodiment, the changeover switch KS is used to select which of the a contact Rsa and the b contact Rsb is to be enabled. This changeover switch KS makes it possible to appropriately generate an interlock signal regardless of the type of specifications of the associated shutter device 40. In FIGS. 11A and 11B, the changeover switch KS is shown to be provided before and after the relay switch group Rsg, but in reality, only one changeover switch KS may be provided.

TS is a setting switch provided for shorting the relay switch group Rsg. In this embodiment, a setting switch TS is provided in place of the terminal pair T, which is the two terminal blocks 100. This setting switch TS is provided for each relay switch group Rsg, similarly to the third embodiment. Since the changeover switch KS is connected to the relay switch group Rsg, the setting switch TS is provided to be able to short-circuit the relay switch group Rsg and the changeover switch KS. Although the types of the setting switch TS and the changeover switch KS are not limited, they are both, for example, toggle switches. Both the terminal pair T and the setting switch TS correspond to connection short circuit means in this embodiment. Further, the changeover switch KS corresponds to selection means in this embodiment.

With such a setting switch TS and a changeover switch KS, the effort of connecting the terminal blocks 100 with a signal line can be saved. For example, with a toggle switch, all you have to do is operate the toggle. This makes it easier and faster to set up each generation circuit that makes up the generation circuit group 110.

FIG. 12 is a diagram illustrating a configuration example of a generation circuit group in the fourth embodiment.
In FIG. 12, similarly to other embodiments, numbers are added to "TS" for the setting switches TS, so that the setting switches TS can be individually identified. Similarly to the other embodiments, in the relay switch group Rsg, a number is inserted after "R" to clarify the relationship between the relay 131 and the relay coil Rc. In the changeover switch KS, the two-digit number following "KS" indicates the difference in the corresponding relay 131 and the generation circuit provided. The tens digit indicates the corresponding relay 131, and the ones digit indicates the difference in the generation circuit.
The parts other than the generation circuit group 110 are the same as in the first embodiment. Therefore, in FIG. 12, only the portions of the generation circuit group 110 and the first terminal block group 14 that are related to the generation circuit group 110 are shown.

The contact selected by the changeover switch KS associated with the same relay 131 may be the same in all generation circuits. This is the same even when the shutter device 40 to be handled by the generation circuit has both normal specifications and non-normal specifications. However, it is necessary to consider the specifications adopted by the associated shutter device 40 and determine the contact point to be selected by each changeover switch KS.

FIG. 13 is a diagram illustrating an example of the back of a door of a control panel according to the fourth embodiment of the present invention.
Inside the control panel 1, as described above, the power supply section 12, the relay group 13, the first terminal block group 14, etc. are arranged. Its interior is covered by a door. FIG. 13 shows an example of a device placed behind the door, that is, a back side that cannot be seen from the outside when the door is closed, and an example of its arrangement.

On the back of the door, as shown in FIG. 13, an LED 17, a changeover switch group KSG, and a setting switch group TSG are arranged. In both the changeover switch group KSG and the setting switch group TSG, all the changeover switches KS and all the setting switches TS present in the generation circuit group 110 are arranged in a matrix. As described above, the LED 17 is an indicator light that indicates whether interlock control is enabled or not depending on whether it is lit or not. Note that the LED 17 shown in FIG. 13 is a part to which wiring is connected, and a lighting part (not shown) is visible from the front side of the door, for example, through a hole provided in the door.

The relay switch group Rsg of the same relay 131 is used in four of the five generation circuits. Therefore, the changeover switch group KSG has changeover switches KS arranged in a matrix of five vertically and four horizontally. One setting switch group TSG has five setting switches TS arranged both vertically and horizontally, that is, in a 5×5 matrix.

In the changeover switch group KSG, all symbols that connect two numbers with a hyphen, such as "1-1" and "1-2", represent one changeover switch KS. Similarly, in the setting switch group TSG, each number from "1" to "20" represents one setting switch TS.

Specifically, in the changeover switch group KSG, the first number represents the corresponding relay 131, and the numbers that follow via a hyphen represent the corresponding generation circuit. Therefore, for example, "1-1" represents the changeover switch KS11 provided for switching the contacts of the relay switch group R1sg included in the relay R1, which constitutes the generation circuit 112. “1-2” represents a changeover switch KS12 provided for switching the contacts of the relay switch group R1sg constituting the generation circuit 113. In FIG. 13, the first number, that is, the number representing relay 131, is written as an input number.

In FIG. 13, the term "lower limit position signal" is written as a term meaning an open/close state signal when the seat 401 is in the closed state, that is, when the seat 401 is at the lower limit position. "Input changeover switch" is written as a name for changeover switch KS. The interlock setting switch is referred to as a setting switch TS.

When the control panel 1 is installed, all the changeover switches KS are in a state where, for example, the b contact Rsb is selected. Thereby, the worker basically only has to operate the toggle of the changeover switch KS that should select the a contact point Rsa. To avoid confusion, operations on each changeover switch KS are expressed assuming the state at the time of installation (hereinafter referred to as "initial state"). That is, it is assumed that the operation for each changeover switch KS is only switching from the b contact Rsb to the a contact Rsa.

In the setting switch group TSG, each number from "1" to "20" matches each number following "TS", such as "1" for setting switch TS1, "2" for setting switch TS2, and so on. Thereby, each number from "1" to "20" represents a corresponding setting switch TS.

In the setting switch group TSG, the input number is shown on the vertical axis, and the partner number is shown on the horizontal axis. This input number and the other party's number are switches that set cooperation relationships for interlock control using numbers, on the premise that numbers 1 to 5 are assigned to each of up to five shutter devices 40 so that they do not overlap. This is assumed to be set by operating the TS. In this assumption, the input number is the number assigned to the shutter device 40 of interest among each shutter device 40, and the partner number is the number assigned to the shutter device 40 that sets the cooperative relationship with the shutter device 40 of interest. Equivalent to. Regarding the cooperative relationship, attention is focused only between the two shutter devices 40. For this reason, the setting switch group TSG has setting switches TS arranged in a matrix, and there are no numbers, that is, no setting switches TS, where the input number and the partner number match. Therefore, even if the setting switches TS are arranged in a 5×5 matrix, the actual number of setting switches TS is 4 both vertically and horizontally.

The number here represents the relay 131 to which the shutter device 40 should be associated. Therefore, in the shutter device 40 assigned the number 1, it is necessary to supply the open/close state signal to the relay coil R1c of the relay R1. Similarly, in the shutter device 40 assigned the number 2, it is necessary to supply the open/close state signal to the relay coil R2c of the relay R2.

It is assumed that the setting switches TS constituting the setting switch group TSG are all in the closed state as an initial state, similarly to the changeover switch group KSG. As a result, it is assumed that each setting switch TS is operated only if it is necessary to change it from the closed state to the open state. The closed state of the setting switch TS is a state in which the cooperative relationship is disabled for interlock control, and the open state is a state in which the cooperative relationship is enabled.
Note that the initial states of both the changeover switch KS and the setting switch TS are not particularly limited.

FIG. 14 is a diagram illustrating an example of the contents of interlock control assumed for five shutter devices. Here, assuming a case where interlock control as shown in FIG. 14 is performed, operations to be performed on the setting switch group TSG will be specifically explained. It is assumed that there is no need to operate each changeover switch KS, that is, the b contact Rsb is selected in each relay switch group Rsg.

In the example shown in FIG. 14, the shutter devices 40 numbered 1 and 2 only need to be linked with the shutter device 40 numbered 3. The shutter device 40 numbered 3 needs to be linked with the shutter devices 40 numbered 4 and 5 in addition to the shutter devices 40 numbered 1 and 2. The shutter device 40 numbered 4 may be linked with the shutter device 40 numbered 5 in addition to the shutter device 40 numbered 3. The shutter device 40 numbered 5 may be linked with the shutter devices 40 numbered 3 and 4.

As a result, it is sufficient to operate a total of 10 setting switches TS, including setting switches TS2, TS6, TS9 to TS12, TS15, TS16, TS19, and TS20, to switch them to the open state. Through such an operation, interlock control as shown in FIG. 14 can be performed using the five shutter devices 40.
Even for other types of interlock control, if the number of shutter devices 40 is up to five, the setting switch TS that needs to be operated may be identified and operated in the same manner.

In this manner, in this embodiment, the setting switches TS are arranged in a matrix with the setting switch group TSG, and the setting switches TS can be operated with focus on the space between the two shutter devices 40. Therefore, the worker can easily visually identify the setting switch TS to be operated. The need to understand the relay switch group Rsg associated with each setting switch TS, the configuration of the generation circuit, etc. is avoided. Therefore, even a worker without special skills can quickly and reliably operate the setting switch TS that should be operated among the setting switches TS.

In this embodiment, the second terminal block group 15 is omitted. However, it is difficult to arrange the changeover switch group KSG and the setting switch group TSG in the location where the second terminal block group 15 was placed. For this reason, in this embodiment, the changeover switch group KSG and the setting switch group TSG are arranged using the back of the door. By using the back of the door, both the changeover switch group KSG and the setting switch group TSG can be easily arranged in a matrix.

(Fifth embodiment)
The fourth embodiment described above enables interlock control of up to five shutter devices 40. The fifth embodiment, like the second embodiment, enables interlock control of up to nine shutter devices 40. A major difference from the second embodiment is that the fifth embodiment also employs a changeover switch KS and a setting switch TS.

FIG. 15 is a diagram illustrating a configuration example of a generation circuit group in the fifth embodiment.
This generation circuit group 110 includes nine generation circuits so that up to nine shutter devices 40 can be provided. Therefore, there are eight changeover switches KS associated with each shutter device 40 (relay 131). Further, as setting switches TS, there are a total of 72 setting switches TS1 to TS72. Each setting switch TS is connected in parallel to one relay switch group Rsg, similarly to the fourth embodiment.

FIG. 16 is a diagram illustrating an example of the back of the door of the control panel according to the fifth embodiment of the present invention.
On the back side of the door of the control panel 1, an LED 17, a changeover switch group KSG, and a setting switch group TSG are arranged, similar to the fourth embodiment. In the changeover switch group KSG, changeover switches KS are arranged in a matrix of nine vertically and eight horizontally. In the setting switch group TSG, there is no setting switch TS at a location where the input number and the partner number match. For this reason, eight setting switches TS are arranged both vertically and horizontally in a 9×9 matrix.
Similar to the fourth embodiment, symbols such as "1-1" and "1-2" shown in the changeover switch group KSG represent one changeover switch KS. The numbers “1” to “72” shown in the setting switch group TSG also represent one setting switch TS.

FIG. 17 is a diagram illustrating an example of the content of interlock control assumed for nine shutter devices. Here, as in the fourth embodiment, operations to be performed on the setting switch group TSG will be specifically explained assuming a case where interlock control as shown in FIG. 17 is performed. It is assumed that there is no need to operate each changeover switch KS, that is, the b contact Rsb is selected in each relay switch group Rsg.

In the example shown in FIG. 17, the shutter devices 40 numbered 1 and 2 only need to be linked with the shutter device 40 numbered 3. The shutter device 40 numbered 3 may be linked with the shutter device 40 numbered 4 in addition to the shutter devices 40 numbered 1 and 2. The shutter device 40 numbered 4 needs to be linked with the shutter device 40 numbered 5 and 8 in addition to the shutter device 40 numbered 3. The shutter device 40 numbered 5 needs to be linked with the shutter device 40 numbered 6 in addition to the shutter device 40 numbered 4. The shutter device 40 numbered 6 needs to be linked with the shutter device 40 numbered 7 in addition to the shutter device 40 numbered 5. The shutter device 40 numbered 7 only needs to be linked with the shutter device 40 numbered 6. The shutter device 40 numbered 8 may be linked with the shutter device 40 numbered 9 in addition to the shutter device 40 numbered 4. The shutter device 40 numbered 9 only needs to be linked with the shutter device 40 numbered 8.

As a result, a total of 16 setting switches TS, including setting switches TS2, TS10, TS17 to TS19, TS27, TS28, TS31, TS36, TS37, TS45, TS46, TS54, TS60, TS64, and TS72, are installed. Just operate it and switch it to the open state. By such an operation, interlock control as shown in FIG. 17 can be performed with nine shutter devices 40.
Even for other types of interlock control, if the number of shutter devices 40 is up to nine, the setting switch TS that needs to be operated may be identified and operated in the same manner.

In this way, even if the number of shutter devices 40 subject to interlock control increases from five to nine, the worker can easily visually identify and operate the setting switch TS to be operated. Therefore, even if there are six or more shutter devices 40, a worker without special skills can quickly and reliably operate the setting switch TS that should be operated among the setting switches TS. Can be done.

Note that even in the fourth and fifth embodiments, only the relays 131 corresponding to the actual number of shutter devices 40 to be subjected to interlock control may be attached to the control panel 1. By closing the setting switch TS associated with the relay 131 that is not attached, the influence of not attaching the relay 131 can be avoided.

Both the changeover switch group KSG and the setting switch group TSG are arranged behind the door, but they may be arranged inside the control panel 1, that is, in a place covered by the door. Further, although all the switches in the changeover switch group KSG and the setting switch group TSG are arranged in a matrix, they may be divided into a plurality of switches and each switch group may be arranged in a matrix. Various modifications described above are also applicable to the first to third embodiments.

1 Control panel, 2 Factory, 3 Warehouse, 12 Power supply section, 13 Relay group, 14 First terminal block group, 15 Second terminal block group, 16 Select switch, 40 Shutter device (electrical equipment) 100 Terminal block, 101 Terminal, D Terminal block pair, KS, KS11~88 Changeover switch, KSG Changeover switch group, R1c~R12c Relay coil, R1s~R12s Relay switch, Rsg, R1sg~R9sg Relay switch group, T, T1~T47 Terminal pair, TS , TS1 to 72 setting switches, TSG setting switch group.

Claims (6)

information input means for inputting status information representing the status of each of the plurality of electrical devices to be controlled;
Settings can be made according to the content of coordination between the plurality of electrical devices, and the operation of each electrical device is managed using the status information inputted for each electrical device by the information input means. signal generation means for generating a signal according to the settings;
Control panel with. The signal generation means includes a plurality of switches that are opened and closed according to the contents of the plurality of state information inputted for each of the electrical devices, and a plurality of connection short-circuit means each capable of short-circuiting one or more switches. By providing a plurality of circuits, the management signal of each electrical device is generated by the associated generation circuit,
The setting for the signal generation means includes, for each generation circuit, short-circuiting a switch to be shorted among the switches included in the generation circuit by the connection shorting means corresponding to the switch to be shorted. carried out by
The control panel according to claim 1. The signal generating means includes a plurality of switch groups each including at least two switches that are opened and closed according to the contents of the plurality of state information inputted for each of the electrical devices, and whose opening and closing are in opposite phases. By providing a plurality of generation circuits including a plurality of connection short-circuit means capable of short-circuiting the switch group and a plurality of selection means capable of selecting a switch to be enabled from the switch group, the control of each electrical device is performed. causing the associated generation circuit to generate a signal,
The setting for the signal generation means is performed by causing the plurality of selection means to select the switch to be enabled for each group of switches included in the generation circuit for each generation circuit; This is performed by short-circuiting a group of switches to be short-circuited among the switch groups by the connection short-circuit means corresponding to the group of switches to be short-circuited.
The control panel according to claim 1. Each of the plurality of selection means provided for each of the generation circuits is a changeover switch that individually enables switching of a switch to be enabled among the corresponding switch group,
The changeover switches are grouped into corresponding switch groups and arranged in a matrix.
The control panel according to claim 3. Each of the plurality of connection short-circuiting means provided for each of the generation circuits is a setting switch that is provided for each corresponding switch group and enables short-circuiting of the switch group;
The setting switches are arranged in a matrix assuming a cooperative relationship between the two electrical devices.
The control panel according to claim 3. When the electrical equipment is a switchgear that operates a switchgear, the status information is a status signal indicating whether or not the switchgear is in a closed state;
The plurality of generation circuits included in the signal generation means are configured to perform interlock control for restricting the switching device that enables the opening and closing body to be in the open state, depending on each state of the plurality of switching devices. It is possible to set
The control panel according to any one of claims 1 to 5.

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