Product Overview

The Schneider Electric ATV320U55N4B is a high-performance 5.5 kW (7.5 hp) frequency inverter belonging to the Altivar Machine 320 "Book" series. Specifically engineered for Original Equipment Manufacturers (OEMs), this drive delivers advanced motor control for both synchronous and asynchronous motors. Its slim, book-style form factor is designed to maximize cabinet space efficiency, allowing for dense side-by-side mounting. By integrating robust safety features and high-torque capabilities, the ATV320U55N4B ensures maximum machine availability and operational safety in complex automation environments.

Technical Configuration and Hardware Architecture

The Altivar 320 "Book" series is built to operate in harsh industrial conditions, featuring enhanced electrical protection and specialized coating for longevity.

• Power Rating: 5.5 kW / 7.5 hp

• Voltage Supply: 380V to 500V AC (Three-Phase)

• Form Factor: Book style (Slim profile for lateral mounting)

• Motor Control Algorithms: Sensorless flux vector control, V/f ratio (2 or 5 points), and PM motor control

• Safety Integration: Integrated Safe Torque Off (STO) and 4 additional safety functions (SS1, SLS, SMS, GDL)

• Communication Ports: Native Modbus and CANopen (Expandable via Ethernet/IP, Profinet, EtherCAT)

• Environmental Resilience: Coated printed circuit boards (3C3 class) for chemical resistance

• Thermal Performance: Operational up to 50°C without derating (up to 60°C with derating)

• Chassis Dimensions: 23.1 x 23 x 45 cm

• Unit Net Weight: 4.06 kg

• EMC Performance: Integrated Class C2 EMC filter

Machine-Level Implementations and Performance Scenarios

This variable speed drive is optimized for machines requiring high dynamic response and robust safety certifications across various sectors:

• Material Handling and Logistics: Perfect for belt conveyors, cross-belt sorters, and high-frequency palletizers where precise torque control at low speeds is essential.

• Packaging Solutions: Provides the accuracy needed for vertical form-fill-seal (VFFS) machines, labeling equipment, and automated capping systems.

• Textile Manufacturing: Regulating tension and speed in spinning, weaving, and knitting machines where consistent motor performance is vital.

• Metal and Woodworking: Driving high-torque saws, grinders, and specialized cutting tools that require rapid acceleration and deceleration.

• Hoisting and Lifting: Managing small industrial hoists and gantry movements with integrated safety functions to protect operators and cargo.