Product Overview

The Schneider ATV340D37N4E Variable Speed Drive is a high-capacity industrial AC drive from the Schneider Electric Altivar Machine ATV340 series, engineered for advanced machine automation, precision motor control, and demanding industrial applications. Rated at 37 kW (Heavy Duty), the drive operates on a three-phase 380–480 VAC power supply and features an integrated Ethernet communication interface, enabling seamless connectivity with modern Industrial Ethernet networks and smart manufacturing systems.

Designed for high-performance OEM machinery and continuous industrial processes, the ATV340D37N4E supports both three-phase asynchronous induction motors and permanent magnet synchronous motors. It combines advanced sensorless vector control, high overload capability, integrated Safe Torque Off (STO), intelligent diagnostics, and high-speed Ethernet communication to deliver exceptional speed accuracy, rapid torque response, and reliable long-term operation.

With dimensions of 213 × 660 × 262 mm and an approximate weight of 28.4 kg, the drive is designed for cabinet-mounted installations where high power density, efficient cooling, and dependable performance are essential.

Typical applications include CNC machining centers, robotic production lines, packaging machinery, conveyor systems, material handling equipment, printing presses, textile machinery, food and beverage processing, compressors, pumps, and large-scale automated manufacturing systems.

Technical Specifications

Function and Working Principle

The ATV340D37N4E converts fixed-frequency AC power into variable voltage and frequency output, enabling precise regulation of motor speed, torque, and acceleration for demanding industrial applications.

Operating sequence:

Three-Phase AC Input → Rectifier → DC Link → PWM Inverter → AC Motor → Industrial Equipment

The drive continuously monitors motor load, operating conditions, and process requirements while automatically adjusting output parameters to maximize efficiency, improve productivity, and protect connected equipment.

Primary functions include:

• Precision variable speed control
• Advanced sensorless vector control
• High starting torque
• Excellent low-speed stability
• Adjustable acceleration and deceleration
• PID process control
• Dynamic braking support
• Automatic energy optimization
• Integrated Ethernet networking
• Intelligent fault diagnostics
• Safe Torque Off (STO)
• Comprehensive motor protection

Role in Industrial Automation Systems

The ATV340D37N4E serves as the intelligent motor control platform within modern industrial automation systems.

Typical automation architecture:

PLC / Motion Controller

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Industrial Ethernet Network

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ATV340D37N4E Variable Speed Drive

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Three-Phase AC Motor

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Industrial Equipment

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Production Process

Its integrated Ethernet interface enables reliable communication with PLCs, HMIs, SCADA systems, and distributed control systems while maintaining highly accurate motor performance.

Industrial Applications

CNC Machine Tools

Suitable for:

• Machining centers
• Heavy-duty milling machines
• Precision cutting equipment
• Automated machining cells
• Flexible manufacturing systems

Packaging Machinery

Ideal for:

• High-speed filling machines
• Wrapping equipment
• Cartoning systems
• Palletizing machines
• Packaging production lines

Material Handling Systems

Supports:

• Conveyor systems
• Warehouse automation
• Hoisting equipment
• Transfer systems
• Logistics automation

Pumps and Compressors

Optimizes motor performance while reducing operating costs and improving energy efficiency.

Textile Machinery

Provides precise speed regulation for spinning, weaving, winding, dyeing, and finishing processes.

Food and Beverage Processing

Suitable for mixers, bottling systems, conveyors, packaging equipment, and automated processing lines.

Robotics and Smart Manufacturing

Designed for robotic workstations, synchronized machinery, automated assembly lines, and intelligent production systems.

Installation and Commissioning

Before installation, engineers should verify:

• Input voltage compatibility
• Motor specifications
• Cabinet ventilation and cooling capacity
• Protective grounding
• Cable sizing
• Ethernet network configuration
• Protection devices
• Environmental operating conditions

Recommended Installation Procedure

1. Disconnect the incoming power supply.
2. Securely mount the drive inside the electrical cabinet.
3. Connect the three-phase power input.
4. Connect motor output terminals.
5. Connect the protective earth conductor.
6. Complete all control wiring.
7. Connect the Ethernet communication cable.
8. Configure network parameters.
9. Verify all electrical connections.
10. Restore power.
11. Enter motor nameplate information.
12. Configure drive parameters.
13. Set acceleration, deceleration, and protection functions.
14. Test motor operation.
15. Verify communication with PLC, HMI, and Ethernet devices before commissioning.

Compatible System Components

Recommended Alternative Models

Key Advantages

• Altivar Machine ATV340 high-performance platform
• 37 kW heavy-duty motor control
• Three-phase 380–480 VAC operation
• Integrated Ethernet communication
• Native Modbus TCP and EtherNet/IP support
• Advanced sensorless vector control
• Excellent dynamic response and torque performance
• Integrated Safe Torque Off (STO)
• High overload capability
• Intelligent diagnostics and predictive maintenance support
• Comprehensive motor protection
• Designed for continuous industrial operation
• Dimensions 213 × 660 × 262 mm
• Approximate weight 28.4 kg

Technical FAQs

What is the Schneider ATV340D37N4E?

The ATV340D37N4E is a 37 kW Variable Speed Drive from the Schneider Electric Altivar Machine ATV340 series with integrated Ethernet communication for advanced industrial automation.

What is the primary function of this drive?

It controls motor speed, torque, and acceleration by converting fixed-frequency AC input into variable voltage and frequency output while providing Industrial Ethernet connectivity.

What are the physical dimensions?

The drive measures 213 × 660 × 262 mm.

What is the approximate weight?

The drive weighs approximately 28.4 kg.

Which motors are compatible?

It supports compatible three-phase AC induction motors and permanent magnet synchronous motors.

Which communication protocols are supported?

The integrated communication interface supports EtherNet/IP, Modbus TCP, Modbus Serial, and Ethernet-based industrial networking for seamless integration with automation systems.

Which industries commonly use this drive?

It is widely used in CNC machining, robotics, packaging, logistics automation, textile manufacturing, food processing, printing, water treatment, material handling, and OEM machine building.

Does the drive improve energy efficiency?

Yes. Intelligent vector control continuously adjusts motor output according to process demand, reducing energy consumption while maintaining high production efficiency.

Which protection features are included?

The drive includes overload protection, thermal protection, overvoltage and undervoltage protection, phase-loss detection, short-circuit protection, Safe Torque Off (STO), and advanced fault diagnostics.

What should engineers verify before installation?

Engineers should verify the power supply, motor specifications, Ethernet network configuration, grounding, cabinet ventilation, cooling capacity, wiring integrity, and operating environment before commissioning.

Conclusion

The Schneider ATV340D37N4E Variable Speed Drive is a high-performance 37 kW industrial AC drive developed for demanding machine automation and precision motor control. Its integrated Ethernet connectivity, advanced vector control technology, high overload capability, and comprehensive protection features make it an excellent solution for modern industrial manufacturing.

With dimensions of 213 × 660 × 262 mm and an approximate weight of 28.4 kg, the drive is ideally suited for cabinet-mounted installations requiring reliable communication, accurate motor regulation, and long-term operational stability.

When integrated with compatible PLCs, HMIs, Industrial Ethernet networks, AC motors, sensors, and automation equipment, the ATV340D37N4E delivers exceptional speed accuracy, increased productivity, reduced maintenance costs, and dependable performance across a broad range of industrial automation applications.