Altivar Machine ATV320U55N4C Variable Speed Drive 5.5kW Compact Type

Product Overview – Schneider Electric Altivar Machine ATV320U55N4C Variable Speed Drive

• Brand: Schneider Electric
• Model: ATV320U55N4C
• Series: Altivar Machine ATV320
• Product Type: Compact Variable Speed Drive (VFD)
• Rated Power: 5.5 kW Heavy Duty
• Voltage Class: 380–500 V AC, 3-Phase
• Designed for complex industrial machines.
• Compact wall-mounted structure saves cabinet space.
• Integrated EMC filter improves system stability.
• Supports flexible industrial communication expansion.
• Provides precise motor control and energy efficiency.

Description

• The ATV320U55N4C drive delivers reliable speed control for demanding automation systems.
• Advanced sensorless vector control ensures smooth torque output.
• Supports asynchronous and synchronous motors.
• Compact housing simplifies installation in limited panels.
• Integrated braking chopper enables fast deceleration.
• Built-in safety functions increase machine protection.
• Optimized for conveyors, packaging, pumps, and material handling.

Configuration Breakdown (Suffix Structure)

• ATV320
  • Altivar Machine drive family
• U55
  • Rated motor power: 5.5 kW
• N4
  • 380–500 V three-phase supply
• C
  • Compact wall-mount format
• Local Distributor Code: 408899800

Technical Specifications

• Brand: Schneider Electric
• Model: ATV320U55N4C
• Rated Output Current: 14.3 A
• Maximum Input Current: 20.7 A
• Output Frequency: 0–599 Hz
• Switching Frequency: 2–16 kHz adjustable
• Nominal Switching: 4 kHz
• Transient Overtorque: 170–200% nominal torque
• Control Modes:
  • Sensorless flux vector control
  • Voltage/frequency multi-point control
  • Energy saving profile
• Speed Accuracy: ±10% nominal slip
• Resolution: 10-bit analog processing
• Analog Inputs: 3 channels (0–10 V, ±10 V, 0/4–20 mA)
• Analog Output: 0–10 V or 0–20 mA configurable
• Digital Inputs: 7 logic inputs including STO
• Relay Outputs: 2 configurable relays
• Protection Class: IP20
• Cooling Air Volume: 60 m³/h

Environmental & Immunity Performance

• Operating Temperature: −10 to 50°C without derating
• Storage Temperature: −25 to 70°C
• Humidity Class: IEC 60721-3 Class 3K5
• Shock Resistance: 150 m/s² at 11 ms
• Vibration Resistance: 10 m/s² (13–200 Hz)
• EMC Immunity:
  • ESD Level 3
  • Burst Level 4
  • Surge Level 3
  • RF immunity Level 3
• Stable operation in industrial electrical noise environments.

Installation Guide

• Install vertically within ±10° orientation.
• Mount on solid wall or cabinet plate.
• Ensure adequate airflow clearance.
• Connect motor grounding before power wiring.
• Use recommended protection devices upstream.

Commissioning & Maintenance Convenience

• Integrated PID simplifies process setup.
• Automatic motor slip compensation reduces tuning time.
• Ramp adaptation prevents mechanical stress.
• DC injection braking enables smooth stop.
• Clear diagnostics help quick troubleshooting.

Compatibility & Communication

• Native Modbus serial and CANopen support.
• Optional communication modules:
  • EtherCAT
  • PROFINET
  • EtherNet/IP
  • Profibus DP V1
  • DeviceNet
  • Ethernet Powerlink
• Easy integration into PLC and SCADA systems.

Safety & Diagnostic Capabilities

• Safe Torque Off (STO) built-in.
• Safe Stop 1 (SS1) supported.
• Safely Limited Speed (SLS) available.
• Monitors overheating, phase loss, and short circuits.
• Real-time fault detection improves uptime.

Certifications & Compliance

• CE, UL, CSA, EAC, ATEX, KC, RCM certified.
• Complies with IEC 61800-5-1 standard.
• Overvoltage Category III.
• Designed for industrial pollution degree 2 environments.

Typical Applications

• Packaging machinery
• Conveyor systems
• Pumps and fans
• Material handling equipment
• Textile and automated production lines

Packing List & Warranty

• 1 × ATV320U55N4C Variable Speed Drive
• Factory standard packaging
• User documentation
• 12-month warranty from shipment date
• Shipping via FedEx, UPS, or DHL.

FAQ – Practical Guidance

• Can this drive control different motor types?
• Yes. It supports asynchronous and synchronous motors without sensors.
• Is additional braking hardware required?
• No. A braking chopper is already integrated.
• What communication protocol should I select?
• Choose based on PLC network. PROFINET and EtherNet/IP are common choices.
• How to improve stability in noisy environments?
• Use shielded cables and proper grounding practices.
• What is a good sizing rule?
• Select a drive with current rating equal or higher than motor full load current.
• Is it suitable for high start torque loads?
• Yes. It provides up to 200% transient torque.

Selection Guidance

• Confirm motor voltage matches 380–500 V class.
• Check required communication protocol early.
• Consider cabinet cooling capacity.
• Verify safety function requirements.
• Choose compact version when panel space is limited.