Schneider Electric ATV71HD22N4: Premium Variable Speed Drive for Heavy-Duty Motor Control

Core Technical Specifications & Performance

• Manufacturer: Schneider Electric
• Model: ATV71HD22N4
• Product Type: Variable Speed Drive (VSD)
• Motor Power: 22 kW / 30 HP (3-phase 380...480V)
• Input Voltage: 480V AC, 3-Phase (Range: 323…528 V)
• Nominal Output Current: 40 A @ 460V / 48 A @ 380V
• Output Frequency Range: 0.1 to 599 Hz
• Control Profiles: Sensorless Flux Vector Control (SFVC), Flux Vector Control with sensor, V/F
• Communication Ports: Integrated Modbus (RTU) and CANopen
• Switching Frequency: Adjustable 1 to 16 kHz

Advanced Control & Measurement Accuracy

• The ATV71HD22N4 ensures superior motion control for both asynchronous and synchronous motors.
• It achieves a wide speed range up to 1:1000 in closed-loop mode with encoder feedback.
• Speed accuracy is +/- 0.01% in closed-loop with an encoder.
• Torque accuracy reaches +/- 5% in closed-loop mode for precise load handling.
• The drive provides a transient overtorque capability of 170% for 60 seconds.

Robust Environmental Tolerance & Safety

• Operating Temperature: -10°C to 50°C (14°F to 122°F) without derating.
• Storage Temperature: -25°C to 70°C (-13°F to 158°F).
• Protection Rating: IP20, suitable for controlled industrial environments.
• It features comprehensive protection against overcurrent, overvoltage, phase loss, and motor thermal overload.
• Includes a Safe Torque Off (STO) function via the PWR safety input for personnel safety.
• The drive meets key standards: UL, CSA, CE, and complies with IEC 61800-3 for EMC.

Wiring, Connections & Installation

• Power Terminals: Accept large cables up to 50 mm² (AWG 1/0) with a tightening torque of 12 N.m.
• Control Terminals: For 2.5 mm² (AWG 14) cables, with a torque of 0.6 N.m.
• I/O Configuration: 2 analog inputs, 1 analog output, 7 discrete inputs, and 2 configurable relay outputs.
• Maximum motor cable length: 100m shielded or 200m unshielded for flexible installation.
• Mounting: Designed for vertical installation (+/- 10 degrees) with an integrated heat sink.

Frequently Asked Questions (FAQ)

• What motors work with the Altivar 71 drive? It controls both standard asynchronous and synchronous motors perfectly.
• Does this model include a braking resistor? No, but it supports an external resistor for up to 150% braking torque.
• Can I add communication options? Yes, optional cards for Profibus DP, EtherNet/IP, DeviceNet, and others are available.

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