Schneider ATV71HU55N4 Altivar 71 Variable Speed Drive 5.5 kW

Technical Specifications Breakdown

Key parameters for the ATV71HU55N4 are listed below for quick reference:

Application Versatility for Complex Machines

The ATV71HU55N4 is designed for complex, high-power machines. With a power rating of 5.5 kW and support for sensorless vector or flux vector control, it handles demanding loads such as conveyors, pumps, and fans. The drive's ability to manage both asynchronous and synchronous motors reduces inventory complexity for maintenance teams.

Compared to simpler VFDs, this Altivar 71 model offers superior torque accuracy (±15% in open-loop, ±5% in closed-loop) and a wide speed range (1:100 for asynchronous motors in open-loop). This makes it suitable for applications requiring precise speed regulation, such as material handling or mixing processes.

Installation and Setup Guidance

Mount the drive vertically (±10 degrees) to ensure proper cooling. Use shielded cable up to 50 m or unshielded up to 100 m for motor connections. The IP20 enclosure is suitable for indoor installation in clean environments. Ensure the supply voltage is within 323...528 V (limits) and the ambient temperature stays between -10°C and 50°C without derating. For altitudes above 1000 m, apply a current derating of 1% per 100 m.

Maintenance and Reliability

Periodically inspect the drive for dust accumulation on the heat sink and ensure airflow is unobstructed. The unit includes integrated EMC filtering and protection against overvoltage, undervoltage, overcurrent, and thermal overload. Operating in environments with 5-95% relative humidity (non-condensing) is acceptable. For long-term reliability, verify the tightening torque of power terminals (26.6 lbf.in) and control terminals (5.3 lbf.in) during installation.

Optimized Motor Control with the Altivar 71 Drive

Industrial operations demand precise and reliable motor control to maintain productivity and reduce energy costs. The Schneider ATV71HU55N4 variable speed drive from the Altivar 71 series delivers advanced performance for complex machinery. This drive supports both asynchronous and synchronous motors, making it a versatile choice for a wide range of applications.

Compatibility and Integration

The ATV71HU55N4 supports Modbus and CANopen communication protocols via RJ45 and SUB-D 9 connectors. This enables seamless integration into existing automation networks. Optional communication cards (e.g., EtherNet/IP, Profibus DP) expand connectivity for enterprise-level monitoring. The drive also includes 7 discrete inputs, 2 analog inputs, 1 analog output, and 2 relay outputs for flexible I/O configuration.

Selection Guide and Purchasing Advice

When selecting a variable speed drive, confirm that the power rating (5.5 kW) and voltage (380-480V three-phase) match your motor and supply. The ATV71HU55N4 is available at AutoDCSTech, a trusted supplier of industrial automation parts. Please verify current lifecycle status and availability with AutoDCSTech before ordering.