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- Schneider
- ATV320U55M3C
- Variable Speed Drive
- France
- 150 x 232 x 178 mm
- 3.5 kg
- Xiamen, China
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Product Overview
The Schneider ATV320U55M3C Variable Speed Drive is a high-performance AC drive from the Altivar Machine ATV320 series, designed to deliver precise motor speed control, stable torque performance, and energy-efficient operation for industrial automation systems. Rated for 5.5 kW motor applications, the drive is engineered to control compatible three-phase AC induction and synchronous motors used in a wide range of industrial machinery.
Designed for OEM equipment manufacturers and industrial production facilities, the ATV320U55M3C combines compact construction with advanced motor control technology, integrated communication functions, and comprehensive protection features. It enables accurate speed regulation, reduces mechanical stress during startup and stopping, and improves overall production efficiency while lowering energy consumption.
With dimensions of 150 × 232 × 178 mm and an approximate weight of 3.5 kg, the drive is suitable for installation inside industrial control cabinets where reliable performance and efficient use of space are essential.
Typical applications include packaging machinery, conveyor systems, pumps, fans, compressors, textile equipment, woodworking machinery, food and beverage processing, material handling systems, water treatment facilities, and automated production lines.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Product Series | Altivar Machine ATV320 |
| Model | ATV320U55M3C |
| Product Type | Variable Speed Drive |
| Rated Motor Power | 5.5 kW |
| Input Supply | Three-Phase AC |
| Compatible Motors | Three-phase AC Induction and Synchronous Motors |
| Control Method | Variable Frequency Drive (VFD) |
| Mounting Method | Cabinet / Panel Mount |
| Protection Rating | IP20 |
| Cooling Method | Forced Air Cooling |
| Communication | Industrial Communication Support |
| Dimensions | 150 × 232 × 178 mm |
| Weight | 3.5 kg |
| Typical Application | Industrial Motor Speed Control |
Function and Working Principle
The ATV320U55M3C converts fixed-frequency AC input into variable voltage and frequency output, allowing the connected motor to operate at the speed required by the production process.
A simplified operating sequence is:
AC Power Supply → Rectifier → DC Bus → Inverter → AC Motor → Industrial Equipment
Key functions include:
- Variable motor speed control
- Precise torque regulation
- Soft start and soft stop
- Energy-saving operation
- Adjustable acceleration and deceleration
- Motor overload protection
- Fault diagnostics
- PID process control
- Stable continuous-duty operation
- Industrial automation integration
Role in Industrial Automation Systems
The ATV320U55M3C serves as the motor control unit within industrial automation systems.
Typical system architecture:
PLC / Industrial Controller
↓
ATV320U55M3C Variable Speed Drive
↓
Three-Phase AC Motor
↓
Industrial Equipment
↓
Production Process
The drive continuously regulates motor speed and torque according to control commands, improving productivity and process consistency.
Industrial Applications
Packaging Machinery
Ideal for filling machines, labeling equipment, wrapping systems, cartoning machines, and packaging conveyors.
Conveyor Systems
Provides smooth speed control, minimizes mechanical shock, and improves conveying efficiency.
Pumping Systems
Optimizes pump operation by matching motor speed to process demand, reducing energy consumption.
Fans and Ventilation
Improves airflow regulation while lowering operating costs through variable-speed control.
Material Handling
Suitable for warehouse automation, lifting systems, transfer conveyors, and logistics equipment.
Textile Machinery
Supports spinning, weaving, winding, and finishing equipment requiring accurate speed control.
Food and Beverage Processing
Used in mixers, conveyors, bottling lines, packaging equipment, and processing machinery.
OEM Machine Building
An excellent solution for customized industrial equipment requiring reliable motor control and compact cabinet installation.
Installation and Commissioning
Before installation, engineers should verify:
- Power supply compatibility
- Motor ratings
- Cabinet ventilation
- Grounding
- Cable sizing
- Protective devices
- Control wiring
- Environmental conditions
Recommended Installation Procedure
- Disconnect electrical power.
- Mount the drive vertically inside the control cabinet.
- Connect the input power supply.
- Connect the motor output terminals.
- Connect protective grounding.
- Wire the control circuits.
- Configure communication interfaces if required.
- Verify all electrical connections.
- Restore power.
- Configure motor parameters.
- Set acceleration and deceleration times.
- Configure protection settings.
- Test motor rotation.
- Verify system operation.
- Complete commissioning.
Compatible System Components
| Component | Function |
|---|---|
| Schneider PLC | Machine control |
| ATV320U55M3C | Variable Speed Drive |
| Three-Phase AC Motor | Mechanical drive |
| HMI Panel | Operator interface |
| Circuit Breaker | Electrical protection |
| Contactor | Motor isolation |
| EMC Filter | Electromagnetic compatibility |
| Braking Resistor | Dynamic braking |
| Encoder | Speed feedback |
| Industrial Sensors | Process monitoring |
| Power Supply | Control power |
| Industrial Communication Network | System integration |
Recommended Alternative Models
| Model | Product Type | Rated Power | Typical Application |
|---|---|---|---|
| ATV320U40M3C | Variable Speed Drive | 4 kW | Medium-duty machinery |
| ATV320U55M3C | Variable Speed Drive | 5.5 kW | General industrial automation |
| ATV320U75M3C | Variable Speed Drive | 7.5 kW | Higher-power equipment |
| ATV320U40S6C | Variable Speed Drive | 4 kW | High-voltage systems |
| ATV320D11M3C | Variable Speed Drive | Heavy-duty applications | Industrial production |
Key Advantages
- Compact Altivar Machine ATV320 design
- Rated for 5.5 kW motor applications
- Accurate variable-frequency motor control
- Smooth acceleration and deceleration
- Stable torque output
- Energy-efficient operation
- Advanced protection functions
- Industrial communication capability
- Reliable continuous-duty performance
- Easy commissioning and maintenance
- Suitable for OEM and factory automation
- Dimensions 150 × 232 × 178 mm
- Approximate weight 3.5 kg
Technical FAQs
What is the Schneider ATV320U55M3C?
It is a 5.5 kW Variable Speed Drive from the Schneider Electric Altivar Machine ATV320 series for industrial motor control.
What is the primary function of this drive?
It controls motor speed and torque by converting fixed-frequency AC power into adjustable voltage and frequency output.
What are the dimensions?
The drive measures 150 × 232 × 178 mm.
What is the approximate weight?
The unit weighs approximately 3.5 kg.
Which motors are compatible?
It is designed for compatible three-phase AC induction motors and synchronous motors used in industrial automation systems.
Where is this drive typically installed?
It is installed inside industrial control cabinets as part of machine automation and motor control systems.
Which industries commonly use this drive?
It is widely used in packaging, material handling, pumping systems, food processing, textile manufacturing, HVAC, woodworking, logistics, and OEM industrial machinery.
Does the drive improve energy efficiency?
Yes. By adjusting motor speed to actual load requirements, it helps reduce electrical energy consumption and improve overall system efficiency.
Does it include motor protection?
Yes. The drive incorporates comprehensive protection features including overload protection, fault diagnostics, and operating condition monitoring.
What should be verified before replacing the drive?
Engineers should verify motor power, input voltage, wiring configuration, cabinet space, communication requirements, cooling conditions, and application compatibility before installation.
Conclusion
The Schneider ATV320U55M3C Variable Speed Drive is a compact and reliable 5.5 kW AC drive designed for demanding industrial automation applications. Its advanced motor control capabilities, energy-efficient operation, and integrated protection features provide dependable performance across a wide range of production environments.
With dimensions of 150 × 232 × 178 mm and an approximate weight of 3.5 kg, the drive is well suited for cabinet-mounted installations where space efficiency and long-term reliability are important.
When integrated with compatible PLCs, HMIs, AC motors, sensors, and industrial communication networks, the ATV320U55M3C delivers stable motor control, improved production efficiency, reduced maintenance requirements, and reliable long-term operation for modern industrial automation systems.