Product Overview
When pumping and ventilation systems require reliable speed control, the Schneider ATV61HC11N4 Variable Speed Drive delivers robust performance. This Altivar 61 drive provides 150 HP (110 kW) at 380-480 V three-phase, featuring a Level 3 EMC filter and heat sink assembly. Designed for both asynchronous and synchronous motors, it offers flux vector control without sensor for precise torque and speed regulation.
Technical Specifications
The Schneider ATV61HC11N4 operates on a 380...480 V supply with a line current of 168 A at 480 V and 202 A at 380 V. Continuous output current reaches 215 A at 2.5 kHz for 380 V and 460 V configurations. Output frequency ranges from 0.1 to 500 Hz, with a nominal switching frequency of 2.5 kHz adjustable up to 8 kHz. The drive includes a 10.5 V DC internal supply for potentiometer and a 24 V DC internal supply for control circuits.
Key protection features include overcurrent, overvoltage, undervoltage, short-circuit, and thermal protection. The drive meets standards such as IEC 60721-3-3 class 3C2, EN 61800-3, and UL Type 1. It operates in ambient temperatures from -10 to 60 °C with derating.
Industry Applications
The ATV61HC11N4 excels in pumping and ventilation applications, offering Quadratic U/f energy-saving control. It also handles conveyors, compressors, and fans. With a transient overtorque of 130% for 60 seconds, it accommodates heavy starting loads. The integrated PI regulator enables precise process control for constant pressure or flow.
Compatibility & Integration
This variable speed drive supports Modbus and CANopen communication with RJ45 connectors and a 2-wire RS 485 interface. It accommodates numerous option cards for APOGEE FLN, BACnet, DeviceNet, EtherNet/IP, Profibus DP, and more. This flexibility allows seamless integration into existing automation networks.
Troubleshooting & Common Issues
The ATV61HC11N4 features comprehensive diagnostics, including a red LED for drive voltage and protection against input phase loss, supply overvoltage/undervoltage, and motor overheating. If braking capacity exceeds limits, the drive automatically adapts ramps or uses an external braking resistor. The Safe Torque Off function ensures fast response within 100 ms.
Maintenance & Reliability
For long-term reliability, operate the drive within specified ambient temperatures (14 to 113 °F without derating) and altitudes (up to 3280 ft). With a pollution degree 3 rating and IP54 protection on lower parts, it withstands harsh industrial environments. Regular inspection of cooling fans and filter ensures sustained performance.