Variable speed drive, ATV950, 18,5kW, 400/480V- with braking unit, IP55. range of product: Altivar Process ATV900 – product or component type: variable speed drive – device application: industrial application – device short name: ATV950 – variant: standard version, with braking chopper – product destination: asynchronous motors, synchronous motors – mounting mode: wall mount – EMC filter: integrated conforming to EN/IEC 61800-3 category C2 with <= 50 m motor cable maxi, integrated conforming to EN/IEC 61800-3 category C3 with <= 150 m motor cable maxi – IP degree of protection: IP55 conforming to IEC 60529, IP55 conforming to IEC 61800-5-1 – type of cooling: forced convection – motor power kW: 15 kW (heavy duty), 18.5 kW (normal duty) – motor power hp: 20 hp (heavy duty), 25 hp (normal duty) – line current: 24.4 A at 480 V (heavy duty), 27.7 A at 380 V (heavy duty), 28.9 A at 480 V (normal duty), 33.4 A at 380 V (normal duty) – prospective line Isc: 50 kA – apparent power: 20.3 kVA at 480 V (heavy duty), 24 kVA at 480 V (normal duty) – continuous output current: 31.7 A at 4 kHz (heavy duty), 39.2 A at 4 kHz (normal duty) – maximum transient current: 47 A during 60 s (normal duty), 47.6 A during 60 s (heavy duty) – asynchronous motor control profile: constant torque standard, optimized torque mode, variable torque standard – synchronous motor control profile: permanent magnet motor, synchronous reluctance motor – speed drive output frequency: 0.1…599 Hz – nominal switching frequency: 4 kHz – switching frequency: 2…16 kHz adjustable, 4…16 kHz with derating factor – discrete input logic: 16 preset speeds – communication port protocol: Ethernet/IP, Modbus serial, Modbus TCP – option card: communication module for Ethernet Powerlink, slot A : communication module for CANopen daisy chain RJ45, slot A : communication module for CANopen screw terminals, slot A : communication module for CANopen SUB-D 9, slot A : communication module for DeviceNet, slot A : communication module for EtherCAT, slot A : communication module for Profibus DP V1, slot A : communication module for Profinet, slot A/slot B/slot C : digital and analog I/O extension module, slot A/slot B/slot C : output relay extension module, slot B : 5/12 V digital encoder interface module, slot B : analog encoder interface module, slot B : resolver encoder interface module.