Product Overview

The Schneider ATV32HU55N4 Variable Speed Drive is a high-performance AC drive from the Schneider Electric Altivar 32 (ATV32) series, engineered for demanding industrial automation applications that require precise motor speed control, reliable torque output, and high energy efficiency. Rated for 5.5 kW, the drive operates on a three-phase 380–500 VAC power supply and is designed to control both asynchronous induction motors and permanent magnet synchronous motors.

The ATV32HU55N4 integrates advanced sensorless vector control technology, intelligent motor management, built-in industrial communication interfaces, and comprehensive protection functions into a compact industrial drive. It delivers excellent low-speed performance, smooth acceleration and deceleration, stable operation under varying loads, and reduced mechanical wear, helping improve productivity while lowering operating costs.

With dimensions of 150 × 308 × 232 mm and an approximate weight of 7.5 kg, the drive is designed for cabinet-mounted installation in industrial environments where reliability, efficient cooling, and long service life are essential.

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

Technical Specifications

Function and Working Principle

The ATV32HU55N4 converts fixed-frequency AC input power into variable voltage and frequency output, allowing accurate control of motor speed and torque for a wide range of industrial applications.

Operating sequence:

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

Its intelligent control processor continuously monitors operating parameters and automatically adjusts output voltage and frequency to maximize motor efficiency, maintain process stability, 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
• Automatic energy optimization
• Motor overload protection
• Intelligent fault diagnostics
• Industrial communication integration

Role in Industrial Automation Systems

The ATV32HU55N4 functions as the intelligent motor control center in industrial automation systems.

Typical automation architecture:

PLC / Industrial Controller

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ATV32HU55N4 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 receives operating commands from the control system and continuously regulates motor speed to improve production accuracy, reduce energy consumption, and increase equipment reliability.

Industrial Applications

Packaging Machinery

Suitable for:

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

Conveyor Systems

Provides stable speed regulation while minimizing mechanical shock during startup and stopping.

Pumps and Water Treatment

Optimizes pump performance by adjusting motor speed according to process demand, improving energy efficiency.

Fans and HVAC Systems

Maintains precise airflow while reducing power consumption and operating costs.

Material Handling Equipment

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

Textile Machinery

Supports spinning, weaving, winding, dyeing, and finishing equipment requiring precise speed regulation.

Food and Beverage Processing

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

OEM Industrial Machinery

Frequently integrated into customized industrial equipment requiring reliable communication, compact installation, and accurate motor control.

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 PLC and HMI communication.
15. Complete system commissioning.

Compatible System Components

Recommended Alternative Models

Key Advantages

• Compact Altivar 32 industrial platform
• Rated for 5.5 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
• Suitable for continuous industrial operation
• Dimensions 150 × 308 × 232 mm
• Approximate weight 7.5 kg

Technical FAQs

What is the Schneider ATV32HU55N4?

The ATV32HU55N4 is a 5.5 kW Variable Speed Drive from the Schneider Electric Altivar 32 series designed for industrial motor speed and torque control.

What is the primary function of this drive?

It converts fixed-frequency AC power into adjustable voltage and frequency output, providing accurate motor speed regulation and optimized process control.

What are the physical dimensions?

The drive measures 150 × 308 × 232 mm.

What is the approximate weight?

The drive weighs approximately 7.5 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 installed inside industrial control cabinets for production machinery, conveyors, pumps, compressors, and automated manufacturing systems.

Which industries commonly use this drive?

It is widely used in packaging, logistics, food processing, textile manufacturing, HVAC, water treatment, material handling, woodworking, and OEM machinery.

Does the drive improve energy efficiency?

Yes. By automatically adjusting motor speed to match process demand, the drive helps reduce energy consumption while improving production efficiency.

Does the drive include motor protection?

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

What should engineers verify before installation?

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

Conclusion

The Schneider ATV32HU55N4 Variable Speed Drive is a reliable and energy-efficient 5.5 kW industrial AC drive designed for demanding automation applications. Its advanced vector control technology, integrated industrial communication, intelligent protection features, and robust construction make it an excellent solution for modern industrial machinery.

With dimensions of 150 × 308 × 232 mm and an approximate weight of 7.5 kg, the drive is well suited for cabinet-mounted installations where dependable performance and long-term reliability are essential.

When integrated with compatible PLCs, HMIs, AC motors, industrial communication networks, sensors, and automation equipment, the ATV32HU55N4 delivers precise speed regulation, improved productivity, reduced maintenance requirements, and stable long-term performance across a wide range of industrial automation applications.