Product Overview

The Schneider ATV32HU40N4 Variable Speed Drive is a compact industrial AC drive from the Schneider Electric Altivar 32 (ATV32) series, designed to deliver high-performance motor speed control for demanding industrial automation applications. Rated for 4 kW, the drive operates on a three-phase 380–500 VAC power supply and supports both asynchronous induction motors and permanent magnet synchronous motors.

Engineered for OEM machinery and industrial manufacturing systems, the ATV32HU40N4 combines advanced sensorless vector control, integrated industrial communication, intelligent diagnostics, and comprehensive motor protection into a compact enclosure. It provides excellent low-speed torque, smooth acceleration and deceleration, and optimized energy efficiency while reducing mechanical stress and extending equipment service life.

With dimensions of 60 × 325 × 245 mm and an approximate weight of 3.0 kg, the drive is ideal for installation inside industrial control cabinets where space-saving design and dependable operation are essential.

Typical applications include packaging equipment, conveyor systems, pumps, compressors, fans, textile machinery, woodworking machines, material handling equipment, food and beverage processing lines, water treatment facilities, and automated production systems.

Technical Specifications

Function and Working Principle

The ATV32HU40N4 converts fixed-frequency AC input power into adjustable voltage and frequency output, enabling accurate motor speed and torque regulation across a wide range of industrial applications.

Operating sequence:

Three-Phase AC Supply → Rectifier → DC Bus → PWM Inverter → AC Motor → Industrial Equipment

The integrated control processor continuously monitors operating conditions and dynamically adjusts output parameters to maximize motor efficiency, ensure stable process performance, and protect connected equipment.

Key functions include:

• Variable motor speed regulation
• Sensorless vector control
• High starting torque
• Soft start and soft stop
• Adjustable acceleration and deceleration
• PID process control
• Energy-saving operation
• Motor overload protection
• Automatic fault diagnostics
• Industrial communication integration

Role in Industrial Automation Systems

The ATV32HU40N4 serves as the intelligent motor control unit within industrial automation systems.

Typical automation architecture:

PLC / Industrial Controller

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ATV32HU40N4 Variable Speed Drive

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Three-Phase AC Motor

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Industrial Equipment

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Production Process

The drive continuously adjusts motor speed according to production requirements, improving process accuracy, reducing energy consumption, and enhancing equipment reliability.

Industrial Applications

Packaging Machinery

Suitable for:

• Filling machines
• Wrapping equipment
• Labeling systems
• Cartoning machines
• Packaging conveyors

Conveyor Systems

Provides smooth acceleration, stable speed regulation, and reduced mechanical wear during continuous operation.

Pumps and Water Treatment

Optimizes pump performance by matching motor speed to system demand while reducing operating costs.

Fans and HVAC Systems

Maintains precise airflow control and improves energy efficiency.

Material Handling Equipment

Supports warehouse automation, pallet conveyors, lifting equipment, transfer systems, and logistics applications.

Textile Machinery

Ideal for spinning, weaving, winding, dyeing, and finishing equipment requiring precise motor control.

Food and Beverage Processing

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

OEM Industrial Machinery

Widely integrated into customized industrial equipment requiring compact dimensions, reliable communication, and precise motor speed regulation.

Installation and Commissioning

Before installation, engineers should verify:

• Input voltage compatibility
• Motor specifications
• Cabinet ventilation
• Protective grounding
• Cable sizing
• Communication configuration
• Protection devices
• Environmental operating conditions

Recommended Installation Procedure

1. Disconnect the electrical power supply.
2. Mount the drive securely inside the control cabinet.
3. Connect the three-phase input power.
4. Connect the motor output terminals.
5. Connect protective earth.
6. Complete the control wiring.
7. Configure communication parameters.
8. Verify all electrical connections.
9. Restore power.
10. Configure motor parameters.
11. Set acceleration and deceleration profiles.
12. Configure protection settings.
13. Test motor operation.
14. Verify communication with the PLC or HMI.
15. Complete system commissioning.

Compatible System Components

Recommended Alternative Models

Key Advantages

• Compact Altivar 32 industrial design
• Rated for 4 kW motor applications
• Three-phase 380–500 VAC operation
• Advanced sensorless vector control
• Excellent low-speed torque performance
• Smooth acceleration and deceleration
• Integrated Modbus and CANopen communication
• High energy efficiency
• Comprehensive motor protection
• Intelligent fault diagnostics
• Easy installation and maintenance
• Designed for continuous industrial operation
• Dimensions 60 × 325 × 245 mm
• Approximate weight 3.0 kg

Technical FAQs

What is the Schneider ATV32HU40N4?

The ATV32HU40N4 is a 4 kW Variable Speed Drive from the Schneider Electric Altivar 32 series for industrial motor control.

What is the primary function of this drive?

It converts fixed-frequency AC power into adjustable voltage and frequency output, enabling precise motor speed and torque control.

What are the physical dimensions?

The drive measures 60 × 325 × 245 mm.

What is the approximate weight?

The drive weighs approximately 3.0 kg.

Which motors are compatible?

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

Where is this drive commonly installed?

The drive is typically installed inside industrial control cabinets for production machinery, conveyors, pumps, compressors, and automated manufacturing equipment.

Which industries commonly use this drive?

Typical industries include packaging, logistics, food and beverage processing, textile manufacturing, HVAC, water treatment, material handling, woodworking, and OEM machine building.

Does the drive improve energy efficiency?

Yes. By matching motor speed to actual load requirements, the drive reduces energy consumption while improving overall production efficiency.

Does the drive include motor protection?

Yes. It incorporates overload protection, thermal protection, overvoltage and undervoltage protection, short-circuit monitoring, and intelligent fault diagnostics.

What should engineers verify before installation?

Engineers should verify motor specifications, input voltage, wiring configuration, cabinet dimensions, grounding, cooling conditions, communication settings, and application compatibility before commissioning.

Conclusion

The Schneider ATV32HU40N4 Variable Speed Drive is a reliable 4 kW industrial AC drive designed for modern automation systems requiring accurate motor control, high operational efficiency, and dependable long-term performance.

With dimensions of 60 × 325 × 245 mm and an approximate weight of 3.0 kg, the drive is well suited for cabinet-mounted industrial installations where compact design and reliable operation are essential.

When integrated with compatible PLCs, HMIs, AC motors, industrial communication networks, sensors, and automation equipment, the ATV32HU40N4 provides precise speed regulation, improved productivity, reduced maintenance requirements, and stable long-term performance across a wide range of industrial applications.