Description

Brief Product Description

The Schneider Electric ATV71HD55N4 is a 55 kW (75 hp) high-performance variable speed drive engineered for complex, high-torque industrial machinery. This Altivar 71 series unit provides superior motor regulation for both asynchronous and synchronous systems, ensuring maximum reliability in heavy-duty applications.

Heavy-Duty Motor Regulation and Torque Performance

The Schneider Electric ATV71HD55N4 serves as a premier solution for industrial environments that demand constant torque and precise motor control. Operating at a nominal power of 55 kW (75 hp) with a 480V supply, this drive specializes in managing 3-phase motors under strenuous conditions. Engineers frequently deploy the ATV71HD55N4 for applications requiring high starting torque, such as hoists, mixers, and heavy conveyors. By utilizing advanced vector control technology, the drive maintains exceptional speed accuracy and provides 150% overload capacity for up to 60 seconds, which allows the system to handle sudden mechanical load spikes without tripping.

Electromagnetic Compatibility and System Protection

To ensure stable operation in sensitive electrical environments, Schneider Electric integrates a high-quality EMC filter into the ATV71HD55N4 as a standard feature. This internal filtration minimizes radio-frequency interference and ensures compliance with strict industrial electromagnetic standards. Furthermore, the drive incorporates a comprehensive suite of protective diagnostics. These safeguards actively monitor for phase loss, thermal overloads, and DC bus overvoltage, thereby preventing damage to both the inverter and the connected motor. This proactive approach to equipment health significantly extends the service life of the entire drivetrain and reduces unplanned maintenance costs.

Seamless Automation Integration and Scalability

The architecture of the Altivar 71 ATV71HD55N4 prioritizes flexibility within modern automation networks. It supports multiple communication protocols, allowing for effortless synchronization with PLC systems and SCADA software. Users can further enhance functionality by adding optional graphic display terminals for localized troubleshooting or I/O expansion modules for customized control logic. The unit’s mechanical design supports vertical mounting with a ±10° tolerance, which facilitates efficient heat dissipation and saves critical space inside electrical enclosures. Consequently, this drive represents a versatile asset for facility managers aiming to improve process uptime and energy efficiency across complex industrial infrastructures.

Key Technical Characteristics

• High Torque Capability: Engineered specifically for constant torque applications and heavy-duty industrial loads.
• Advanced Connectivity: Fully compatible with Modbus and CANopen protocols, with additional fieldbus options available.
• Integrated EMC Filter: Reduces electromagnetic noise and simplifies installation in noise-sensitive zones.
• Robust Overload Protection: Manages up to 150% of rated current to support high-inertia starts and heavy lifting.
• Thermal Efficiency: Optimized cooling fan system ensures reliable operation even in high-density panel configurations.
• Precision Control: Supports open-loop and closed-loop motor control for both synchronous and asynchronous motors.

Technical Specifications