Design specification and wiring aesthetics analysis of Industrial PLC cabinet

The design of Industrial panel cabinets is a system engineering that integrates process, structure, and practicality. Its core idea is to follow rigorous logical control laws to ensure electrical safety and production process requirements. At the beginning of the design, it is necessary to conduct comprehensive statistics on the required components and materials, prepare a list of purchased finished parts, a list of standard parts, and consumption quotas for main and auxiliary materials, providing data support for procurement material preparation, production management, and cost accounting.

A complete Standard PLC cabinet design scheme not only includes structural design, overall configuration diagram, and general wiring diagram, but also needs to cover detailed electrical assembly diagrams, wiring diagrams, as well as component catalogs, incoming and outgoing line numbers, and technical data lists. Scientific design logic and comprehensive pre preparation are the cornerstone of ensuring the efficiency of control cabinet manufacturing and use.

The core task of the overall configuration design of Industrial PLC cabinet is to scientifically divide the system components based on the working principle and control requirements of the electrical schematic, and further disassemble them into components according to their complexity. Subsequently, based on the wiring relationship, the incoming and outgoing line numbers were sorted out, the connection method was optimized, and presented in the form of a general assembly diagram and a general wiring diagram, clearly reflecting the component position, wiring relationship, routing path, and layout of cable trays, pipelines, etc.

The overall design goal of Application cabinet is to achieve a centralized, compact, and efficient layout of the system, while reasonably isolating or distancing components with high heat generation, noise, and vibration. For multi station large equipment, the convenience of operating in two locations must be considered, and the main power switch and emergency stop switch must be placed in prominent and easy to operate positions. The division of components should follow five principles: classifying and combining functionally similar components; Reduce wiring between components and place closely related control appliances in the same component; Separation of strong and weak electricity to reduce electromagnetic interference; Combination placement of components with similar dimensions and weight, balancing aesthetics and processing; Arrange vulnerable components that require frequent maintenance and adjustment in a centralized manner.

The wiring method between components and boxes of Modular PLC cabinet shall comply with the specifications: the incoming and outgoing lines of switchgear shall use terminal heads or noses; Terminal blocks or industrial connectors are used between cabinets and controlled equipment; Standard connectors are used between weak current components; Components inside the cabinet can be connected using their own terminals, while transition wires can be processed using terminal blocks.

The electrical component layout diagram is a reasonable combination based on the schematic diagram and component division of Automation control cabinet components. When designing, it is necessary to follow the principles of space utilization, safety protection, and operational convenience. In the same component, components with large volume and heavy weight should be installed under the mounting plate, heating elements should be placed at the top or back, and thermal relays should be located at the bottom for easy wiring, connection, and heat dissipation. Strong and weak electricity should be arranged separately and shielded to avoid interference. The position of components that require frequent maintenance should be appropriate, and manually operated switches and monitoring instruments should comply with ergonomics.

The component layout of Electric cabinets PLC panel cabinets should ensure safe clearances, neat symmetry, and similar sized components can be classified and placed. When using trunking wiring, the spacing between components should be increased. When drawing the layout diagram, mark the spacing dimensions based on the component axis, and mark the installation dimensions and tolerances according to the product manual standards.

The electrical component wiring diagram is the key basis for drawing and must strictly follow national standards. The text symbols and wiring numbers of all components and their leads in the Dustproof PLC cabinet must be consistent with the schematic diagram to ensure that the preparation of project codes, terminal numbers, and wire numbers complies with specifications such as GB5094-1985, GB4026-1992, GB4884-1985, etc. Unlike the schematic diagram, the contacts, coils, and other components of the same component in the wiring diagram must be drawn together using thin lines.

The design of Stainless steel PLC cabinets and non-standard components requires comprehensive consideration of operational requirements, internal component dimensions, installation environment, and ease of operation and maintenance.

Firstly, determine the overall size and structural type of the cabinet based on operational requirements and component dimensions. Unless otherwise specified, it should comply with the series standards.

Secondly, install brackets inside the design box, label the installation holes, bolt and grounding bolt dimensions, indicate the processing method, and prioritize the use of specialized profiles for materials. The opening method and type need to be adapted to the installation location and maintenance requirements.

The box should be designed with ventilation holes or ducts, and if necessary, a forced ventilation device should be installed at the top to ensure heat dissipation. For ease of transportation, hooks can be designed or movable wheels can be added at the bottom. The exterior design of the Electrical system cabinet should take into account symmetry, aesthetics, and ease of use. Draw the final assembly drawing and component drawings for doors, panels, baseboards, brackets, etc., indicate processing requirements, and select suitable door locks. For non-standard electrical installation parts, it is necessary to draw part drawings according to mechanical design requirements, indicating tolerances and machining processes.

If you are planning to design a high standard Industrial PLC cabinet or need to optimize the structure and wiring scheme of your existing cabinet, please feel free to communicate with us at any time. We can provide professional design services for the entire process from overall configuration to non-standard customization, helping to create safe, efficient, and aesthetically pleasing electronic control systems.