
PLC + VFD Integrated Control Panels
for Industrial Automation — Weimiao
Why Choose PLC + VFD Control Panels?
Suitable for Pump Stations, Water Treatment, HVAC, and Manufacturing Lines
Weimiao’s PLC + VFD integrated control panels are designed for a wide range of industrial applications, including pump stations, water treatment facilities, HVAC systems, and automated manufacturing lines. Our turnkey solutions integrate complex process requirements, ensuring operational reliability while meeting the highest standards of safety and efficiency.
Integrated PLC Control with Multi-Channel VFD Drives
Our control panels seamlessly combine PLC master control with multiple VFD drives, enabling precise management of multiple motors. Whether it’s pump sequencing in water treatment plants or load regulation in HVAC systems, Weimiao’s integrated panels provide stable operation and minimize downtime risk.
Enhanced Efficiency, Energy Saving, and Equipment Protection
By integrating PLC and VFD systems, Weimiao control panels optimize load management and energy consumption, significantly improving system efficiency. Features like soft start, constant pressure control, and overload protection enhance equipment safety, extending the lifespan of motors and the entire system while reducing maintenance costs.
Weimiao’s Expertise
Turnkey Control Panel Design and Manufacturing

Weimiao offers a complete design and manufacturing process for control panels, from initial concept and component selection to assembly and final inspection. Every PLC + VFD panel is customized to meet specific process requirements, ensuring optimal performance on site.
FAT Testing and Factory Quality Assurance
Before delivery, each control panel undergoes rigorous Factory Acceptance Testing (FAT), including PLC logic validation, VFD drive tests, communication protocol verification, and safety inspections. Weimiao ensures every panel meets strict operational standards before reaching the client.
IEC / ISO9001 Standard Compliance
Weimiao’s PLC + VFD control panels are designed and manufactured in accordance with IEC standards and ISO9001 quality management systems. Whether for domestic or international projects, we maintain consistent high-quality standards to deliver reliable turnkey solutions.
International Project Experience and Global Delivery
With extensive experience in international projects, Weimiao has successfully delivered PLC + VFD control panels to industrial clients worldwide. From shipping and customs clearance to installation guidance, we provide comprehensive support to ensure smooth implementation of projects across the globe.
Key Features and Technical Highlights
Multi-Channel VFD Integration and Motor Control


Weimiao control panels support multiple VFD channels, enabling simultaneous control of several motors to meet complex automation requirements. The system can be configured for various motor types, power ratings, and start modes, adaptable to diverse industrial scenarios.
PLC Logic and Communication Protocol Support
Every PLC + VFD control panel can be customized with control logic and communication protocols such as Modbus, Profibus, and Ethernet. Weimiao provides full programming, testing, and support to ensure seamless integration with existing systems.
Thermal Management and EMC Design
To guarantee long-term reliable operation, Weimiao designs each control panel with optimal thermal management and electromagnetic compatibility (EMC). Efficient airflow, heat sinks, and shielding measures reduce interference risk and improve system stability.
Organized Wiring, Clear Labeling, and Easy Maintenance

Weimiao meticulously manages wiring for every control panel. All cables, terminals, and connection points are clearly labeled for easy installation, commissioning, and maintenance. Neat internal layouts also enhance space utilization and overall aesthetics.
Customizable Process Workflows and Applications
Weimiao’s PLC + VFD panels can be tailored to specific customer process requirements, including multi-pump control in pump stations, water treatment process automation, and energy-saving HVAC operations. Our flexible solutions help clients achieve high-efficiency and reliable automation systems.
Featured Project References
Multi-Drive PLC + VFD Control Panel for Sewage Treatment Pump Station

Weimiao delivered a custom-built PLC + VFD integrated control panel for a municipal sewage treatment pump station.
The system was designed to manage multiple pump motors via independent VFD channels, enabling precise speed control, optimized pump sequencing, and significant energy savings.
The PLC logic coordinates automatic and manual operation modes, alarm handling, and interlocks to ensure stable and reliable operation under varying load conditions.
Technical Highlights:
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Multi-channel VFD integration for pump motor control
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PLC-based pump sequencing and process automation
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Designed for continuous-duty wastewater treatment operation
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Factory Acceptance Test (FAT) completed before shipment
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IEC-compliant electrical design and wiring standards
GGD PLC Control Panel with Siemens & Schneider Integration

In this project, Weimiao engineered and manufactured a GGD-type PLC control cabinet integrating Siemens PLC systems with Schneider electrical components.
The panel demonstrates Weimiao’s capability in multi-brand integration and complex control architecture for industrial automation projects.
The cabinet supports stable communication between control devices and VFD drives, with a clear and well-organized internal layout that simplifies commissioning and long-term maintenance.
Technical Summary:
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Siemens PLC combined with Schneider protection and control devices
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Multi-brand system integration within a single GGD cabinet
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Support for industrial communication protocols (e.g. Modbus)
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Structured wiring layout with clear terminal and cable labeling
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FAT-tested to verify functionality and signal integrity
Industrial Control Cabinet for Water Treatment Plant Machine Room

Weimiao supplied an industrial PLC control cabinet for a water treatment plant machine room, designed to manage pumps, valves, and auxiliary equipment through integrated PLC control and VFD drives.
The cabinet focuses on process automation reliability, ease of operation, and maintenance efficiency, making it suitable for long-term operation in demanding water treatment environments.
Technical Description:
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PLC-controlled motor and process automation
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VFD-based speed control for pumps and rotating equipment
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Clear internal wiring, labeling, and component layout
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Designed in accordance with IEC standards
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Manufactured under ISO 9001 quality management system
Industry Applications
Municipal Sewage Treatment
Weimiao PLC + VFD panels provide precise control over pumps and motors in municipal wastewater facilities, improving operational efficiency and energy management while ensuring reliable process control.
Water Treatment and HVAC Systems
Our panels optimize water treatment operations and HVAC systems by integrating PLC logic with VFD motor drives for efficient load management, soft start, and energy-saving operation.
Industrial Manufacturing and Automation Lines
Weimiao PLC + VFD control panels are ideal for manufacturing automation lines, offering multi-motor coordination, process logic integration, and flexible customization for industrial processes.
Pump Stations, Conveyors, and Fan Systems
From pump stations to conveyor systems and industrial fans, Weimiao panels provide reliable VFD control and PLC automation, improving performance, reducing downtime, and enabling precise process control.
Why Choose Weimiao
Custom Engineering and Rapid Delivery
Weimiao specializes in tailor-made PLC + VFD control panels, designed to meet your unique industrial requirements. Our efficient manufacturing process ensures fast lead times without compromising quality.
Clear Engineering Drawings and DWG Upload Support
Clients can upload DWG files or technical drawings for precise quotations. Weimiao provides detailed engineering drawings, ensuring each control panel matches project specifications accurately.
Trusted by Global Engineering Companies
Weimiao has extensive experience delivering PLC + VFD panels for industrial projects worldwide. Our clients include EPCs, system integrators, and industrial manufacturers who rely on our professional solutions.
Technical Support and After-Sales Service
Weimiao provides continuous technical support, installation guidance, and after-sales service. Our goal is to ensure every project operates smoothly from commissioning to long-term operation.
Upload Your DWG for a Quick PLC + VFD integrated control panel Quote
Send us your DWG or technical drawings, and our engineers at Weimiao will review them to provide an accurate quotation within 24–48 hours.
Contact Weimiao to request a detailed quote for your PLC + VFD integrated control panel. Our engineers will review your requirements and provide a solution tailored to your project.
All files are treated with strict confidentiality — an NDA can be provided upon request.
Accepted formats: DWG, PDF, XLS, DOC
Response time: 24–48 hours

