JPH10254934A - Device and method for preparing electric component layout on control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for supporting the design and preparation of electric circuit on a control panel. SOLUTION: For each electric component to be used for the control panel, a component data library 20 having information such as its dimension, surrounding empty space dimension, component heat resistance and noise resistance is prepared. On the other hand, concerning the control panel, a limit condition data library 22 is prepared while having information such as areas separated corresponding to the heat resistance and noise resistance of components, conditions concerning the position or direction in which the specified component is arranged and limit conditions concerning any layout among the condition names of arrangement for the same type of components. Based on these limit conditions and the data of electric components to be used, a layout processing part 32 executes layout work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for determining an arrangement position of an electric component used for a control panel for controlling electric equipment based on predetermined conditions.

[0002]

2. Description of the Related Art In general industrial equipment, its operation is controlled by a control panel in which control switches are arranged in consideration of operability of an operator. The control panel is provided with electric components such as the control switch. The inside of the control panel has a severe use environment for electric components arranged therein due to heat generated from the components and high-frequency noise generated from a thyristor incorporated in the components. The layout (layout) of these electric components has been determined by the designer based on the dimensions of the electric components based on the electric circuit diagram. At this time, the designer has determined the layout each time in consideration of the heat resistance, noise resistance, maintenance space, and the like of each component based on experience.

[0003]

However, as described above, the layout of electrical components on the control panel largely depends on the experience of each designer, and the layout work requires a great deal of time without experience. There was a problem of cost. In addition, there is a problem that a layout error is likely to occur, and it is found that interference between components and the control panel occurs only at the time of actual mounting work of electric components. Further, the heat resistance and the noise resistance of each electric component are not sufficiently considered unless experience is accumulated, and there is a problem that a failure is not recognized until the equipment is actually operated.

Furthermore, in the actual work of manufacturing a control panel, there is a problem that if there is not sufficient knowledge when wiring between the electric components, the connection terminals and the like cannot be understood, and the number of workers is limited. Also, when creating a procedure manual so that even those who do not have sufficient knowledge can work, it takes a lot of man-hours to create the procedure manual, and omissions and errors in the description and work of the procedure manual etc. There was a case that occurred.

The present invention has been made to solve the above-mentioned problems, and provides an apparatus and a method for reducing the burden of laying out electric components on a control panel and further manufacturing the control panel. The purpose is to:

[0006]

In order to achieve the above-mentioned object, an electric component layout creating apparatus on a control panel according to the present invention is provided for each type of electric component at least in the dimensions of the component and at the periphery of the component. A first memory storing data relating to a margin dimension which is a dimension of an empty space to be provided, a wiring dimension for arranging an electric wire around the part, a thermal resistance of the part and a noise resistance of the part, and at least on a control panel, The type and type of the electric component to be used based on the second memory for storing the arrangement position of the designated area determined corresponding to the heat resistance and noise resistance of the electric component, and the electric circuit diagram of the device to be controlled A used component extracting unit for calculating the number of each used component, and data relating to the used electrical component are read from the first memory, and the data and the stored data are stored in the second memory. And allocation unit which performs the allocation of the electrical components on the control panel based on the specified area, and has a.

According to this configuration, in addition to the dimensions of the parts,
Since a database describing the mounting dimensions, the wiring dimensions, the heat resistance and the noise resistance has been created, a layout suitable for the characteristics of the component can be performed.
Furthermore, since the specified area is defined on the control panel corresponding to the heat resistance and the noise resistance, when arranging the parts, it is possible to select a position suitable for the heat resistance and the noise resistance of the parts. it can. Further, the size of the empty space to be provided around the component stored in the first memory is determined based on the space required for the work of mounting the component and the arrangement space of the electric wires connected to the component. can do. According to this, it is possible to secure a space in which a hand or a tool of an operator can enter during the mounting operation, and also to secure a space for arranging the electric wires.

[0008] Further, the electric circuit diagram of the device to be controlled contains information on the load current of each electric wire, and the electric circuit diagram includes an electric wire size calculating unit for calculating an appropriate electric wire size according to the load current. can do. According to this, it is possible to easily select the wire size.

Further, the apparatus may include wiring guidance means for instructing connection according to an electric circuit diagram of a device to be controlled. By working according to this guidance, erroneous wiring can be prevented.

According to another aspect of the present invention, there is provided a layout creation method for an electrical component of a control panel, wherein at least the size of the component and the size of an empty space to be provided around the component are provided for each type of electrical component. Create data on dimensions, heat resistance of components and noise immunity of components, and create data on the control panel, at least, data on the arrangement position of a specified area defined in accordance with the heat immunity and noise immunity of the electric component. The specified area in which the component is to be placed is determined based on the heat resistance and the noise resistance, and the placement position is determined based on the component size and the margin in the component data.

[0011]

Embodiments of the present invention (hereinafter, referred to as embodiments) will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a control panel manufacturing support system according to the present embodiment. The designer first designs an electric circuit for the control panel using the electric circuit diagram designing unit 10.
The electric circuit diagram is displayed on a CRT (cathode ray tube) 12 or the like, for example, as shown in FIG. 2, and the designer performs the design sequentially while checking this display. In the design of the electric circuit diagram, used electric components, for example, circuit breakers (CB) are written in the used parts table 14 sequentially along with their types, types, rated currents / voltages, and the like. In addition, the wiring information, such as the size, color, and type of wires used for wiring, is also listed in the wiring information table 1
6 is written. FIG.
An example of the wiring information table 16 is shown. As in this example, the used parts table 14 and the wiring information table 16 may be created as the same table, or may be created separately and independently. Further, as for the items in the used parts table 14, at least one capable of specifying the part is required, and in the case of the table of FIG. 3, the item of "model" is required. Other items can be determined as appropriate.

When the circuit design is completed, the used parts table 14 and the wiring information table 16 are completed. Then, the component information analysis unit 18 reads the data related to the components described in the used component table 14 from the component data library 20 and reads the constraint conditions related to the layout of the components from the constraint library 22.

In the component data library 20, dimensions, characteristics, and the like are written in advance for each component model. In the component data library 20 of the present embodiment, the items described in FIGS. 4 and 5 are described.
In other words, the external dimensions of the component itself, the mounting method of the component, the mounting dimensions required for mounting the screw position and screw diameter, the dimensions of the wiring terminal, the wiring dimensions provided for arranging wires around the component, and maintenance work Dimensions such as required maintenance dimensions, heat radiation dimensions required for heat radiation, arc dimensions to prevent arcing with the control board substrate, and noise dimensions to prevent the effects of high frequency noise. In addition, data on heat resistance indicating the degree of heat resistance of the component and noise resistance indicating the influence of high frequency noise are described. In the present embodiment, the heat resistance and the noise resistance are described in three levels of strong, medium and weak, but the rank of each resistance can be determined as appropriate. In addition, the above-mentioned items of each dimension and each withstand amount may be described as needed, and not all of them need be described. Thus, in the present embodiment, the component data library 20 functions as a first memory that stores data for each electrical component.

The constraint condition library 22 describes conditions for imposing constraints when arranging each electric component on the control panel. In the case of this embodiment, a layout condition map, a primary circuit breaker (CB) arrangement condition, a terminal block arrangement condition, a component arrangement condition, a door panel non-mountable component condition, and a door / box mounting component condition. The layout condition map is, for example, as shown in FIG.
FIG. 6 shows an example of a control panel having left and right doors. The electrical components include the control panel body 24, the left door 26, the right door 28
It is also arranged inside. The layout condition map is obtained by dividing the conditions of the arrangement position into designated areas determined from the heat resistance and noise resistance of the components to be arranged. As shown in FIG. 7, the characteristics of each electric component are classified based on the heat resistance and the noise resistance. That is, a component having both a high heat resistance and a high noise resistance is classified as Category I, and a component having both low heat resistance and noise resistance is classified as IX. This division is defined on the control panel as shown in FIG.
It is limited to those having a heat resistance and a noise resistance higher than those described in the sections of this map. For example, the main body 24
The components arranged in the area indicated by the upper right section IV are limited to those having a medium or high heat resistance and a high noise resistance. As described above, in the present embodiment, the constraint condition library 22 functions as a second memory that stores the arrangement position of the designated area (section) defined on the control panel corresponding to the heat resistance and the noise resistance.

The primary circuit breaker arrangement condition determines the primary circuit breaker arrangement position determined for each type of control panel. The terminal block arrangement condition is a condition for determining the arrangement position and the direction of the terminal block. In the present embodiment, the position is limited to both side surfaces or the lowermost portion of the main body 24. In addition, when arranged vertically, the terminal with the lower number is set to the top, and when arranged horizontally, the terminal with the lower number is set to the left. The ground terminal is set at the last end. The component arrangement conditions are such that the same components are arranged in a lump in the order of the heat resistance / noise withstandability, and the components are arranged from left to right in ascending numerical order for each component.

Further, a door panel non-mountable part condition indicating a part which cannot be mounted on the door, and a door / box mounting part indicating a part which is determined to be mounted on the surface of the door, the upper surface of the box and the side surface of the box. The condition is included in the constraint. In the present embodiment, the parts that cannot be attached to the door panel have a wiring thickness of 2.0 sq.
The above components and components have a height of 200 mm or more. In the present embodiment, the parts to be attached to the door or the box are a handle, a meter, a cooler, a heat exchanger, and the like.

The above-described creation of the component data library 20 and the constraint condition library 22 is input in advance while checking on the CRT 30, and data of the new component is input each time a new component is used.

The component information analysis unit 18 reads data on the used components from the component data library 20 based on the used component table 14 created based on the electric circuit diagram, and further reads the constraints of the model of the control panel to be used. These data are transferred to the layout processing unit 32. The layout processing unit 32 determines the layout of each component so as to conform to the constraint conditions, and stores the determined layout in the memory 34. Therefore, in the present embodiment, the component information analysis unit 18 functions as a used component extraction unit, and the layout processing unit 32 functions as an allocation unit that allocates electrical components.

FIGS. 8, 9 and 10 show flowcharts relating to the layout processing of electric components. Created by the electric circuit diagram design unit 10 (S100)
A used parts list is created based on the electric circuit diagram (S10).
2). Based on the used parts table, information on the used parts is read from the parts data library, and an electric circuit diagram parts table is created (S104). If the control electric circuit is designed to be divided into a plurality of control panels, parts to be used are divided for each control panel (S106). Hereinafter, the layout is advanced for each control panel. Further, the used components are divided for each component type (S108), and the used number A is calculated for each component type (S110). Further, a spare number B at a predetermined ratio with respect to the used number A is calculated (S112). In the present embodiment, the spare number B is the smallest number that is 5% or more of the used number A. And
The total required number C (= A + B) for each component type is calculated (S114).

Next, the area required for arranging the component is calculated for each component type (S116). this is,
Data on the dimensions of the part from the part data library,
That is, the dimensions of the component and the size of the extra space around the component.
The dimensions of the extra space around the parts are
It is defined by all of the wiring space, maintenance space and arc space, or some combination of these. Then, for each section (see FIG. 7) determined by the heat resistance and the noise resistance of the component data library, the necessary area of the components is totaled, and the total required area D of the components arranged in the section is calculated (S118). ).
The area D for each section is summed (= F) by one control panel (S120). On the other hand, the maximum area E in which components can be mounted is calculated from the model of the control panel and the provisional outer dimensions (S122). In this embodiment, twice the product of the vertical and horizontal dimensions of the outer dimensions of the control panel box is divided by 0.7.

Then, a comparison is made between the total component mounting area F and the maximum component mounting area E (S124).
If F / E is not less than 0.8, the model and external dimensions of the box are changed again to calculate the maximum component mounting area E. F /
If E is 0.8 or less, the process proceeds to the next step. Next, the above-described constraint condition is read from the constraint condition library, and a plane is allocated to the component (S126).

In the plane layout, first, the primary circuit breaker is arranged at the position of the condition described in the constraint condition library (S128). The handle of the breaker is arranged on the door corresponding to the position of the primary circuit breaker (S130). Further, components to be attached to the surface of the door and the side and top surfaces of the box are arranged based on the condition of the components to be attached to the door / box (S132).

Next, the components inside the control panel other than the primary circuit breaker are laid out (S134). This is performed based on the above-described layout condition map, terminal block arrangement condition, component arrangement condition, and door panel non-attachable component condition. The layout is advanced for each layout condition map, that is, for each section of the heat resistance and the noise resistance. In one category, large parts, power supply parts, power circuit parts,
Programmable logic controller (PLC),
The control circuit components are arranged in the order of the wiring ducts (component arrangement conditions). Large components include an amplifier, an inverter, a controller, and the like. Power supply components include motor breakers, transformers, stabilized power supplies and fuses. Power circuit components include electromagnetic switches, electromagnetic contactors,
Includes overload relays, overcurrent relays, and the like. The control circuit components include auxiliary relays, miniature relays, power relays, timers, latch relays, and the like. For the wiring duct, the sum of the electric wire cross-sectional areas is calculated based on the wiring information obtained from the electric circuit diagram, and a duct having an appropriate diameter is selected. Parts of the same type are arranged from left to right in ascending numerical order (part arrangement condition).

When the layout is completed, side views of the door panel and the main body panel are created (S136), and it is confirmed whether or not there is interference between components (S138). When interference occurs, the operator is warned, and the operator replaces the position of the interference part,
It is changed (S140). If there is no or no interference of the parts, the depth of the box of the control panel is determined (S14).
2) The layout of the electrical components is completed.

FIG. 11 shows another embodiment according to the present invention. In the present embodiment, a wiring guidance unit 36 for assisting a wiring operation at the time of manufacturing a control panel according to the completed layout is added to the apparatus for calculating the layout of the electric components in the control panel shown in FIG. Therefore, the same components as those shown in FIG. 1 are denoted by the reference numerals, and description thereof is omitted.

The guidance processing section 38 reads out the created layout of the control panel electric components from the memory 34 via the layout processing section 32 and stores it in the memory 40.
Further, information on the used components and the wires of the wiring based on the designed electric circuit diagram is read from the component data library and stored in the memory 40. Further, the operator adds an attribute relating to the connection terminal arrangement of each electric component to each electric component in the memory 40 while checking the information on the CRT 42 from the guidance processing unit 38. The above is the preparation stage.

The work guidance in the actual wiring work is performed as follows. First, the operator inputs the drawing number of the control panel on which the work is performed from the keyboard attached to the guidance processing unit 38, reads out the drawing, and displays the drawing on the CRT 42. This display example is shown in FIG. When one block 44 of the wiring of the displayed electric circuit diagram is designated, the corresponding portion is cut out as shown in FIG. 12B, and the wiring end layout of the corresponding electric component is displayed. Then, FIG. As shown in the figure, the connection route 46 between the corresponding wiring connection terminals is displayed, and the color, model, and size of the electric wire are also displayed. When the connection of this part is completed, an instruction to display the next item is given to the guidance processing unit 38, and the next work location is displayed in the same manner. In this way, work guidance is sequentially performed, and the worker performs wiring work with reference to this display.

In the present embodiment, since the work guidance is provided based on the electric circuit diagram itself without the intervention of a person such as preparing a procedure manual, it is possible to eliminate errors in preparing the procedure manual. In addition, even if they are not skilled, by performing the work in order according to the work guidance, it is possible to perform the wiring work according to the electric circuit diagram.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a control panel manufacturing support system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of an electric circuit diagram.

FIG. 3 is a diagram illustrating an example of a used parts table and a wiring information table.

FIG. 4 is a diagram showing an example of a component data library together with FIG. 5;

FIG. 5 is a diagram showing an example of a component data library together with FIG. 4;

FIG. 6 is a diagram illustrating an example of a layout condition map.

FIG. 7 is a diagram illustrating a classification example of heat resistance and noise resistance.

FIG. 8 is a part of a flowchart of the operation of the system of the present embodiment.

FIG. 9 is a part of a flowchart of the operation of the system of the present embodiment.

FIG. 10 is a part of a flowchart of the operation of the system of the present embodiment.

FIG. 11 is a schematic configuration diagram of another control panel manufacturing support system according to the embodiment of the present invention.

FIG. 12 is a diagram showing a display example according to the work guidance of the embodiment shown in FIG. 11;

[Explanation of symbols]

10 electrical circuit diagram design department, 14 parts list used, 16 wiring information table, 18 parts information analysis part (used part extraction part),
20 component data library (first memory), 22 constraint condition library (second memory), 32 layout processing unit (allocation unit).

Claims (5)

[Claims] 1. An apparatus for creating a layout of an electric component of a control panel on which an electric component for controlling the operation of a facility is arranged, wherein at least a dimension of the component,
Extra dimensions, which are the dimensions of the free space provided around the parts,
A first memory for storing data relating to wiring dimensions for arranging electric wires around the component, heat resistance of the component and noise immunity of the component; and, on the control panel, at least heat immunity and noise immunity of the electric component. A second memory for storing an arrangement position of a designated area determined correspondingly, and a used component extracting unit for calculating the type of the used electric component and the number of each type based on the electric circuit diagram of the device to be controlled And an allocating unit that reads data related to the used electrical component from the first memory, and allocates the electrical component on the control panel based on the data and the designated area stored in the second memory. An electrical component layout creation device on a control panel. 2. The electric component layout creating apparatus on a control panel according to claim 1, wherein said margin dimension is at least a space necessary for arranging electric wires connected to said component and a space for mounting said component. An electrical component layout creation device on a control panel that is determined based on the surrounding space required for 3. An electric component layout creating apparatus on a control panel according to claim 1 or 2, wherein the information is based on information on a load current of each electric wire described in an electric circuit diagram of a device to be controlled. An electric component layout creation device on a control panel having an electric wire size calculation unit for calculating an appropriate electric wire size according to a load current. 4. The electrical component layout creating apparatus on a control panel according to claim 3, wherein the control panel has wiring guidance means for instructing connection according to an electrical circuit diagram of a device to be controlled. Electric component layout creation device. 5. The layout of the electrical components of a control panel on which electrical components for controlling the operation of the equipment are arranged is defined.
It is a method of creating using the electrical component layout creation device described, for each type of the electrical component, at least the dimensions of the component,
A margin dimension, which is a dimension of an empty space to be provided around the component, creates data on the heat resistance of the component and the noise resistance of the component, and on the control panel, at least corresponds to the heat resistance and the noise resistance of the electric component. Creating data on the placement position of the designated area determined in accordance with the above, determining the designated area where the component is to be placed based on the heat resistance and noise resistance, and the placement position based on the component size and the margin size of the component data. Determine the layout of the electrical components on the control panel.