Is drawing an electrical schematic in CAD or EPLAN?

Many students who have just studied electrical drawing will be very entangled in one question. Which of the two mainstream graphics software CAD or Eplan is better? Which one is more practical? Which one is better? Which one is better to learn? This article will give you a detailed explanation of the difference between CAD and EPlan.


The normal version of CAD does not have electrical symbols, the electrical version of CAD has electrical symbols, you can select the component model, you can also automatically generate line numbers and reports.




EPlan is a professional drawing electrical drawing software. Getting started is harder than CAD. It is more difficult to master. But EPlan is better than CAD, and the drawings of Eplan can be converted into DWG files, PDF. When facing large project drawings, the overall planning of drawings is superior. Sex comes out.


Due to the long-term accumulation of a large number of CAD modules, the domestic CAD is also very fast in electrical design, but EPlan is a professional electrical design software, and large-scale companies at home and abroad, such as Schneider and Yazaki's drawings are designed by EPlan. At present, most of the domestic CAD is mainly because of the long-term inertia, many middle-aged engineers are not willing to learn new software.
In the basic operations of drawing, such as symbol modification, viewing drawings, format conversion storage, etc., EPLAN has almost all the functions of CAD, and it is more simplified in some functions. Compared with CAD, EPLAN's intelligent features are more prominent, such as automatic numbering, collaborative work, error detection, tracking navigation, etc., which are not possible with traditional CAD software.


Problems in CAD in electrical design
Traditional CAD is mainly developed for the design of mechanical products, so there are some specific problems in the application of electrical design:
1. The schematic diagram of each page in CAD is stored separately in a file, and the schematic diagram of the electrical system generally has more than one hundred sheets, because the space occupied by the second is relatively large, and it is not easy to manage;


2. In the electrical design, the same contactor or relay, its contacts often appear in the schematic of different pages, because the cross-references cannot be generated in CAD, so the omission of coils and contacts is easy to occur on the schematic. The labeling of the contacts may cause errors or duplications, resulting in component selection and design inconsistency;


3. Using CAD, the wiring of all components in the electrical circuit, the text labeling must be done manually;


4. The selection of components, the bill of materials, and the layout of the panel components of the cabinet need to be done manually by means of Excel or traditional CAD, so it is easy to cause component type missing and size errors.


EPLAN features and advantages
1. EPLAN supports different electrical standards such as IEC, JIC, DIN, etc., and has a standard symbol library.


2. Automatic connection between electrical components, automatic numbering of equipment, saving time.


3. EPLAN provides standard templates, and various charts can be automatically generated, such as equipment lists, terminal connection diagrams, etc. The detailed properties of each record can be reflected in the chart. Once you have made changes in the schematic, you only need to refresh the table to update the latest data, without manual modification, to ensure the accuracy of the data.


4. The master device and its scatter components automatically generate cross-references. For example, contactor coils and contacts, which automatically display a contact map below the coil, indicate the location and number of contacts. The repeated use of the same contacts is avoided, and the contactors that are physically present are conveniently selected during component selection to avoid missing contactor contacts.


5. Quick selection function, only need to list the required components in MSEXCEL once, complete the database association, and then select one by one in the schematic diagram, and generate a list through EPLAN's standard template, including various electrical parameters of the device. , size, brand and other information, and can be automatically sorted according to different requirements.


6. After the device selection is completed, the panel layout can be performed. Since the component outline is included in the component list, EPLAN automatically generates a 1:1 component outline drawing according to the selected component, which shortens the layout time of the control panel. .


7. For similar projects, as long as you modify some related project data, such as project name, project number, user name, etc., you can become a new project drawing, which can avoid repeated modification of the project.
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