Description

The ATV71HD75N4Z stands as a heavy-duty frequency inverter within the Schneider Electric Altivar 71 family. This high-performance drive manages asynchronous and synchronous motors in sophisticated industrial environments. It provides exceptional torque control and precision for constant torque applications. The unit operates efficiently on three-phase power systems ranging from 380V to 480V AC. It specifically addresses the needs of high-power machinery requiring high overload capacity and advanced communication capabilities.

Technical Specifications and Performance

• Rated Power Output: 75 kW (100 HP)
• Input Voltage Range: 380 V to 480 V (3-Phase)
• Apparent Power: 109.9 kVA
• Output Frequency Range: 0.1 Hz to 500 Hz
• Transient Overtorque: 220% of nominal motor torque for 2 seconds
• Continuous Overload: 170% of nominal motor torque for 60 seconds
• Integrated Filtering: Built-in EMC filter (Class A)
• Enclosure Rating: IP20 (Supplied without graphic display terminal)
• Weight: 32 kg (Net weight for main power unit)
• Short-circuit Capacity: Supports prospective line Isc up to 22 kA

Core Functions and Industrial Applications

This drive utilizes advanced motor control algorithms to ensure stability across all speed ranges. It excels in applications involving hoisting, material handling, and complex process machinery. The “Z” suffix indicates the unit comes without a graphic terminal, allowing for centralized control through a PLC or remote HMI. Integrated safety features like “Safe Torque Off” (STO) prevent accidental motor restarts. Engineers often deploy this model in textile manufacturing, wood processing, and heavy lifting systems. The robust internal architecture withstands high-heat environments and demanding duty cycles.

Integration and Communication

The ATV71HD75N4Z integrates seamlessly into modern automation architectures via Modbus and CANopen protocols. Users can expand communication options through dedicated plug-in cards for Ethernet/IP, Profibus, or DeviceNet. The drive supports high-speed feedback loops through encoder interface modules. This flexibility allows the drive to function as a core component in complex PLC-managed systems. Its design reduces harmonic distortion, which protects sensitive electronics on the same electrical grid.