Schneider Altivar 71 ATV71HD22N4 VSD for High-Power Machines

Overview
The ATV71HD22N4 from Schneider is a high-performance variable speed drive designed for controlling complex, high-power machinery. Rated at 22 kW (30 HP) with a 3-phase 380–480 V supply, it provides precise motor control, flexible communication, and integrated safety features. Its robust design, including an integrated EMC filter and heat sink, ensures reliable operation under demanding industrial conditions.

Motor Control

• Control Profiles: Voltage/Frequency (2 or 5 points), Sensorless Flux Vector (SFVC), Flux Vector with sensor (FVC), Energy Adaptation (ENA)

• Speed Range: Asynchronous open loop 1–100, closed loop 1–1000; Synchronous open loop 1–50

• Speed Accuracy: ±0.01 % closed loop, ±10 % open loop

• Torque Accuracy: ±5 % closed loop, ±15 % open loop

• Transient Overtorque: 170 % (60 s) / 220 % (2 s)

• Braking Torque: ≤150 % with resistor, 30 % without

Electrical Specifications

• Supply Voltage: 380–480 V (–15…+10 %)

• Line Current: 50 A @ 380 V, 42 A @ 480 V

• Apparent Power: 32.9 kVA @ 380 V

• Output Current: 48 A @ 380 V, 40 A @ 460 V (4 kHz)

• Output Frequency: 0.1–599 Hz

• Switching Frequency: 1–16 kHz (adjustable)

• Prospective Line Isc: 22 kA

• Motor Cable Length: 100 m shielded / 200 m unshielded

Inputs & Outputs

• Analog Inputs: 2 (AI1 ±10 V, AI2 0–10 V / 0–20 mA)

• Analog Output: 1 (0–10 V / 0–20 mA)

• Discrete Inputs: 7 (LI1–LI6, PWR safety)

• Discrete Outputs: 2 (relays R1, R2, NO/NC)

• Protection: Short-circuit, overcurrent, overvoltage, phase loss, overheat, undervoltage, earth fault, thermal protection

Communication

• Protocols: Modbus, CANopen

• Connectors: 2 × RJ45 (Modbus), 1 × SUB-D 9 (CANopen)

• Baud Rates: 4800–38.4 kbps (Modbus), 20 kbps–1 Mbps (CANopen)

• Mode: Slave

• Optional Cards: CC-Link, DeviceNet, EtherNet/IP, Fipio, Interbus-S, Modbus Plus, Modbus TCP, Profibus DP/DP V1, Uni-Telway

• Extension Cards: I/O expansion, encoder interface, controller card, overhead crane card

Mechanical & Environmental

• Dimensions (H×W×D): 420 × 230 × 236 mm

• Weight: 21 kg

• Mounting: Vertical (±10°) with heat sink cooling

• Protection: IP20

• Operating Temperature: –10 to +50 °C

• Storage Temperature: –25 to +70 °C

• Humidity: 5–95 % non-condensing

• Altitude: ≤1000 m without derating; 1 % current derating per 100 m up to 3000 m

• Vibration: 1 gn (13–200 Hz), 1.5 mm p-p (3–13 Hz)

• Shock: 15 gn (11 ms)

• Noise Level: 59.9 dB (86/188/EEC)

• Pollution Degree: 2 (EN/IEC 61800-5-1) / 3 (UL 840)

Applications

• Variable speed control for pumps, fans, conveyors, and high-power industrial machinery

• Energy-efficient motor management with adaptive torque control

• Integration into Modbus or CANopen automation networks

FAQ

Q1: What is the maximum motor power supported?
A1: The ATV71HD22N4 supports motors up to 22 kW (30 HP).

Q2: Which communication protocols are available?
A2: Modbus and CANopen are supported; optional cards extend compatibility to Profibus, DeviceNet, and more.

Q3: Can the drive operate at high switching frequencies?
A3: Yes, up to 16 kHz, with derating applied above 4 kHz.

Q4: What environmental conditions can it withstand?
A4: –10 to +50 °C operation, IP20 protection, humidity 5–95 % non-condensing, vibration and shock resistant.