Schneider ATV320U04N4B Variable Speed Drive

Overview

The Schneider Electric ATV320U04N4B is a compact variable speed drive from the Altivar Machine ATV320 series. It supports asynchronous and synchronous motors up to 0.37 kW. The drive operates with 380–500 V three-phase input and fits demanding industrial machine applications. Its book-style form factor saves space in control cabinets. The drive offers advanced motor control and integrated safety functions for optimized performance. It suits OEM machines in packaging, material handling, textiles, and mechanical actuators.

Technical Specifications

Electrical Ratings

• Motor Power: 0.37 kW (0.5 hp)

• Input Voltage: 380–500 V AC, 3-phase

• Output Current: 1.5 A (heavy duty)

• Line Frequency: 50/60 Hz ±5%

• Maximum Output Frequency: 599 Hz

• Apparent Power: 1.4 kVA at 500 V

I/O and Communication

• Digital Inputs: 7 (including 1 pulse input up to 30 kHz)

• Analog Inputs: 3 (0–10 V, ±10 V, 0–20 mA configurable)

• Analog Output: 1 (0–10 V or 0–20 mA configurable)

• Relay Outputs: 2 configurable relays, up to 5 A at 250 V AC

• Communication Protocols: Modbus RTU, CANopen

• Optional Modules: Ethernet/IP, Profinet, EtherCAT, Profibus DP, DeviceNet

Control Features

• Motor Control Modes: V/f ratio, sensorless flux vector, energy-saving V/f, synchronous vector control

• Safety Functions: Safe Torque Off (STO), Safe Stop 1 (SS1), Safely Limited Speed (SLS)

Mechanical and Environmental

• Operating Temperature: –10°C to +60°C without derating

• Protection Rating: IP20

• Dimensions: Height 325 mm, Width 45 mm, Depth 245 mm

• Weight: 2.5 kg

• Mounting: Vertical ±10°

Performance and Reliability

• Switching Frequency: 2–16 kHz adjustable

• Braking: DC injection with integrated brake chopper

• Transient Overtorque: 170–200% of nominal torque

• Motor Slip Compensation: Automatic up to 300%

• Environmental Class: 3C3, 3S2 according to IEC 60721-3-3

Certifications and Standards

• IEC 61800-5-1 compliant

• EMC: C2 filter, immunity and radiated emission tested

Sustainability

• Carbon Footprint: 863 kg CO₂ equivalent lifecycle

• Packaging: Minimum 70% recycled cardboard