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- Schneider
- ATV340U40N4
- Variable Speed Drive
- France
- 85 x 270 x 232.5 mm
- 2.2 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider ATV340U40N4 Variable Speed Drive is a high-performance AC Variable Frequency Drive (VFD) from the Altivar Machine ATV340 series, engineered to provide exceptional motor control, high dynamic response, and reliable continuous operation for demanding industrial automation applications. Rated for 4.0 kW heavy-duty operation, the drive is designed for OEM machine builders, system integrators, and industrial manufacturers requiring precise speed regulation, stable torque output, and superior machine productivity.
Designed to control both three-phase asynchronous motors and permanent magnet synchronous motors, the ATV340U40N4 incorporates advanced vector control technology that delivers outstanding low-speed performance, rapid acceleration and deceleration, accurate torque regulation, and stable operation under varying load conditions. These capabilities make the drive ideal for precision manufacturing equipment, automated production systems, and high-performance industrial machinery.
The drive integrates seamlessly with PLCs, HMIs, industrial communication networks, motion controllers, and SCADA platforms, allowing centralized parameter management, online diagnostics, predictive maintenance, and simplified commissioning. Built-in protection functions—including overload protection, motor thermal protection, overvoltage protection, undervoltage protection, phase-loss monitoring, overheating protection, and short-circuit protection—help maximize equipment uptime while extending motor service life.
With compact dimensions of 85 × 270 × 232.5 mm and an approximate weight of 2.2 kg, the ATV340U40N4 is easy to install inside industrial control cabinets while maintaining excellent cooling efficiency.
The drive is widely used in packaging machinery, conveyor systems, robotics, CNC machine tools, food and beverage processing, pharmaceutical production, textile equipment, woodworking machinery, plastics processing, automotive manufacturing, printing machinery, and material handling applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATV340U40N4 |
| Product Series | Altivar Machine ATV340 |
| Product Type | Variable Speed Drive |
| Drive Technology | AC Variable Frequency Drive (VFD) |
| Rated Motor Power | 4.0 kW (Heavy Duty) |
| Rated Supply Voltage | 380–480 V AC, Three-Phase |
| Motor Compatibility | Three-Phase Asynchronous Motors and Permanent Magnet Synchronous Motors |
| Control Method | Advanced Vector Control |
| Installation Method | Panel Mounted |
| Cooling Method | Forced Air Cooling |
| Communication | Integrated Modbus Serial |
| Protection Rating | IP20 |
| Dimensions | 85 × 270 × 232.5 mm |
| Weight | 2.2 kg |
Function and Working Principle
The Schneider ATV340U40N4 converts fixed-frequency three-phase AC power into variable-frequency and variable-voltage output using a high-efficiency IGBT inverter, enabling accurate regulation of motor speed and torque.
Typical operating sequence:
Three-Phase AC Power
↓
Rectifier
↓
DC Link
↓
IGBT Inverter
↓
Schneider ATV340U40N4 Variable Speed Drive
↓
Three-Phase AC Motor
↓
Industrial Equipment
During operation, the drive performs several essential functions:
- Converts constant-frequency AC input into adjustable-frequency output
- Regulates motor speed with high precision
- Maintains stable torque during changing load conditions
- Provides smooth acceleration and deceleration
- Continuously monitors drive and motor status
- Optimizes energy consumption
- Protects equipment from abnormal electrical conditions
- Improves overall machine efficiency and productivity
Advanced vector control technology enables rapid dynamic response while minimizing mechanical stress on industrial equipment.
Role in Industrial Control Systems
Within industrial automation systems, the ATV340U40N4 functions as the intelligent motor control interface between automation controllers and industrial motors.
Typical automation architecture:
Industrial Sensors
↓
PLC Controller
↓
Human Machine Interface (HMI)
↓
Schneider ATV340U40N4 Variable Speed Drive
↓
Three-Phase AC Motor
↓
Industrial Machine
The drive continuously executes motor control commands received from the PLC while maintaining stable machine performance under varying operating conditions.
Industrial Applications
Manufacturing Automation
Typical applications include:
- Automated production lines
- Flexible manufacturing systems
- CNC machining centers
- Robotic workstations
- Assembly machinery
Packaging Machinery
Suitable for:
- Filling machines
- Labeling equipment
- Wrapping systems
- Cartoning machinery
- Conveyor lines
Precise motor control improves packaging accuracy and production efficiency.
Material Handling
Common applications include:
- Conveyor systems
- Warehouse automation
- Sorting equipment
- Transfer systems
- Hoisting equipment
Smooth acceleration minimizes mechanical wear while improving equipment reliability.
Food and Beverage Processing
Typical equipment includes:
- Mixing systems
- Bottling lines
- Filling machines
- Packaging equipment
- Conveyor systems
Variable speed operation reduces energy consumption while maintaining stable production.
Textile Industry
Frequently used for:
- Spinning machines
- Weaving equipment
- Dyeing systems
- Winding machinery
- Finishing equipment
Stable motor speed enhances production quality.
Machine Tools
Suitable for:
- Milling machines
- Grinding systems
- Cutting machines
- Drilling equipment
- Precision machining centers
High dynamic performance supports accurate machining operations.
Water and Wastewater Treatment
Applications include:
- Pump control
- Blower systems
- Aeration equipment
- Filtration systems
- Water distribution pumps
Variable speed control significantly improves overall system efficiency.
Installation and System Integration
Before installation, engineers should verify:
- Motor compatibility
- Supply voltage specifications
- Output current requirements
- Cabinet ventilation
- Grounding quality
- Communication configuration
- Ambient operating conditions
- Protection device selection
Recommended Installation Procedure
- Disconnect the incoming power supply.
- Mount the drive securely inside the control cabinet.
- Connect the input power terminals.
- Connect the motor output wiring.
- Install protective grounding.
- Configure communication interfaces.
- Enter motor nameplate parameters.
- Configure acceleration and deceleration profiles.
- Perform motor auto-tuning.
- Verify protection settings.
- Test drive operation.
- Complete system commissioning.
Compatible System Components
| Component | Function |
|---|---|
| Schneider PLC | Machine automation control |
| ATV340U40N4 | Variable speed motor control |
| Human Machine Interface (HMI) | Operator interface |
| Industrial Communication Modules | Network communication |
| Circuit Breakers | Electrical protection |
| Three-Phase AC Motors | Driven equipment |
| Encoder Feedback Devices | Speed feedback |
| Industrial Sensors | Process monitoring |
| Motor Protection Devices | Equipment safety |
| SCADA System | Supervisory monitoring |
Recommended Alternative Models
| Model | Product Type | Recommended Application |
|---|---|---|
| ATV340U30N4 | Variable Speed Drive | Medium-power industrial equipment |
| ATV340U55N4 | Variable Speed Drive | Higher motor power applications |
| ATV340D11N4 | Variable Speed Drive | Heavy-duty automation systems |
| ATV340D15N4 | Variable Speed Drive | Large industrial machinery |
| ATV340U40N4 | Variable Speed Drive | High-performance industrial motion control |
Key Advantages
- Member of the Schneider Altivar Machine ATV340 series
- Rated for 4.0 kW heavy-duty motor applications
- Advanced vector motor control technology
- Excellent speed and torque accuracy
- Supports asynchronous and permanent magnet synchronous motors
- Integrated motor and drive protection
- Compact panel-mounted construction
- High energy efficiency
- Easy integration into industrial automation systems
- Reliable continuous-duty operation
- Dimensions of 85 × 270 × 232.5 mm
- Approximate weight of 2.2 kg
Technical FAQs
What is the Schneider ATV340U40N4?
The Schneider ATV340U40N4 is a Variable Speed Drive (VFD) from the Altivar Machine ATV340 series designed for high-performance industrial motor control.
What is its primary function?
Its primary function is to precisely regulate the speed and torque of AC motors while improving machine efficiency, production quality, and energy savings.
What are the physical dimensions?
The drive measures 85 × 270 × 232.5 mm.
What is the approximate weight?
The drive weighs approximately 2.2 kg.
Which motors are compatible?
The drive supports compatible three-phase asynchronous motors and permanent magnet synchronous motors.
Which industries commonly use this drive?
The drive is widely used in manufacturing, packaging, automotive production, food processing, pharmaceutical manufacturing, textile machinery, CNC machining, logistics, material handling, and water treatment industries.
Does the drive include integrated protection?
Yes. It includes overload, overvoltage, undervoltage, overheating, phase-loss, motor thermal, and short-circuit protection for reliable industrial operation.
Is the drive suitable for continuous-duty operation?
Yes. The ATV340U40N4 is engineered for continuous industrial operation in demanding manufacturing environments.
What should engineers verify before installation?
Engineers should verify motor specifications, input voltage, output current, grounding, ventilation, communication settings, and protective devices.
What should be tested before commissioning?
Before commissioning, engineers should verify wiring integrity, motor rotation direction, parameter configuration, communication functions, protection settings, auto-tuning results, and complete drive performance.
Conclusion
The Schneider ATV340U40N4 Variable Speed Drive is a compact yet powerful member of the Altivar Machine ATV340 family, delivering precise motor control, advanced vector technology, reliable protection, and outstanding dynamic performance for demanding industrial automation applications.
With dimensions of 85 × 270 × 232.5 mm and an approximate weight of 2.2 kg, the drive integrates easily into industrial control cabinets while providing dependable long-term performance. When combined with Schneider PLCs, HMIs, industrial communication systems, compatible AC motors, and SCADA platforms, the ATV340U40N4 provides an efficient, scalable, and reliable motor control solution for modern industrial environments.