Schneider Electric Altivar ATV71HD11N4 110kW Variable Speed Drive

Functional Overview

The Schneider Electric ATV71HD11N4 is a high-performance variable speed drive within the Altivar 71 family, specifically engineered for constant torque applications and heavy-duty industrial machinery. This drive actively manages complex motor requirements by providing exceptional torque control and high precision at very low speeds. By utilizing advanced vector control technology, the unit ensures maximum motor performance for both asynchronous and synchronous systems in demanding operational environments.

Power Ratings and Robust Performance

Designed for heavy-load cycles, this drive operates on a three-phase supply voltage of 380V to 480V and delivers a rated power of 110 kW (150 hp). It maintains superior reliability through its significant overload capabilities:

• Heavy Duty Performance: Delivers a continuous output current of 215A at 380V.
• Overload Capacity: Provides up to 150% of rated motor torque for 60 seconds and 165% for 2 seconds.
• Braking Torque: Supports high-inertia loads with effective braking control, essential for hoisting and material handling.
• Integrated Protection: Features built-in Class A EMC filters to minimize high-frequency interference and protect surrounding electronic equipment.

Control Intelligence and System Networking

The ATV71HD11N4 functions as a smart controller that integrates seamlessly into sophisticated automation layers. It simplifies process management by offering:

• Embedded Protocols: Includes Modbus and CANopen as standard interfaces for immediate PLC integration.
• Advanced Logic: Features a programmable “Controller Inside” card option to manage local logic without an external PLC.
• Flexible I/O: Provides multiple configurable analog and digital inputs/outputs, plus dedicated slots for encoder feedback cards.
• Safety Integration: Incorporates the “Safe Torque Off” (STO) function to prevent unintended motor starts, meeting international safety standards (SIL2/PL d).

Application and Industry Suitability

Because the Altivar 71 series focuses on high-torque performance and precision, it is the ideal solution for “hard-to-start” applications. It excels in the following sectors:

• Hoisting and Cranes: Provides precise movement and load control for vertical lifting.
• Material Handling: Manages high-inertia conveyors and sorting systems efficiently.
• Mining and Minerals: Powers heavy-duty crushers, grinders, and mixers.
• Oil and Gas: Operates high-pressure pumps and drilling equipment under variable loads.

Technical Specifications

• Rated Power: 110 kW / 150 hp
• Input Voltage: 380…480 V AC (3-phase)
• Output Frequency: 0.1 to 500 Hz
• Enclosure Rating: IP20 / UL Type 1
• Net Weight: 80 kg
• Dimensions: 320 mm (W) x 920 mm (H) x 377 mm (D)
• Operating Temp: -10 °C to 50 °C