Product Overview – The Schneider ATV71HU55N4Z Variable Speed Drive
When your production line requires precise motor control and robust performance, the Schneider ATV71HU55N4Z variable speed drive delivers. As part of the Altivar 71 series, this drive handles complex, high-power machines with ease. Designed for 5.5 kW (7.5 HP) motors and a 380 to 480 VAC three-phase supply, the ATV71HU55N4Z integrates seamlessly into existing industrial automation systems. Its built-in CANopen and Modbus interfaces simplify communication, making it a smart choice for upgrades or new installations.
Technical Specifications – Key Parameters of the ATV71HU55N4Z
The Schneider ATV71HU55N4Z offers a comprehensive set of specifications to meet demanding applications:
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Motor Power: 5.5 kW / 7.5 HP
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Input Voltage: 380–480 VAC, 3-phase
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Input Frequency: 50/60 Hz
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Nominal Input Current: 14.3 A
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Nominal Output Current: 11 A (at 4 kHz, 460 V)
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Output Frequency Range: 0.1…599 Hz
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Switching Frequency: 4 kHz nominal, adjustable 1…16 kHz (with derating)
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Enclosure Rating: IP20
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Control Interfaces: Modbus (RJ45) and CANopen (SUB-D 9 via RJ45)
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Operating Temperature: -10 to 50 °C
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Dimensions (H×W×D): 295 × 175 × 187 mm
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Weight: 5.5 kg
Industry Applications – Real-World Use Cases
The ATV71HU55N4Z excels in applications requiring robust variable speed control. In conveyor systems, its sensorless flux vector control ensures smooth acceleration and deceleration, reducing mechanical stress. For pumping and fan applications, the integrated EMC filter and adjustable PI regulator maintain efficient operation under varying loads. In hoisting and crane machinery, the transient overtorque capability (170% for 60 s) provides the extra force needed during start-up.
Compatibility & Integration – Communication and Expansion
The Schneider ATV71HU55N4Z comes standard with Modbus and CANopen ports, enabling direct connection to PLCs and SCADA systems. For extended functionality, optional communication cards (Profibus DP, DeviceNet, EtherNet/IP, Modbus TCP) and I/O extension cards are available. It supports both asynchronous and synchronous motors, with encoder feedback for closed-loop speed control. The drive also accepts a variety of external braking resistors for enhanced stopping torque.
Selection Guide & Purchasing Advice
Before purchasing, verify your motor’s power rating and input voltage match the ATV71HU55N4Z’s 5.5 kW / 380-480 VAC specification. Ensure proper ventilation for the IP20 enclosure. For complex installations, consider adding a remote graphic terminal (sold separately) or a braking resistor for dynamic loads. PLC Source PRO (available at ubest101.myshopify.com) stocks this drive and compatible accessories to support your upgrade projects.