Schneider Electric ATV71HU40N4 Altivar 71 4kW variable speed drive for complex and high power machines incorporates ENA (Energy adaptation) system for unbalanced loads, flux vector control (FVC) with sensor (current vector), sensorless flux vector control (SFVC) (voltage or current vector), voltage/frequency ratio (2 or 5 points) asynchronous motor control profile. 100m unshielded and 50m shielded motor cable. CANopen, Modbus communication port protocol.