The ATV630D75N4US is a 75 kW normal duty / 55 kW heavy duty variable speed drive from the Altivar Process ATV600 family, built for pump, fan, and compressor applications in process and utilities. It runs on a 380-480 V supply and delivers 145 A continuous output at 2.5 kHz switching frequency. That 75 hp (100 hp) rating lines up with standard NEMA motor frames; if you're replacing an older drive, check that the motor nameplate amps sit under the heavy-duty continuous current of 106 A.
Safety and communication slot-in
STO (safe torque off) is integrated at SIL 3 — no separate safety relay needed for that function. Slot A takes a plug-in communication module for Profibus DP V1, PROFINET, DeviceNet, Modbus TCP/EtherNet/IP, CANopen (daisy chain RJ45 or SUB-D 9 or screw terminals), EtherNet/IP Modbus TCP MD-Link, BACnet MS/TP, or Ethernet Powerlink. Slot A/B also accepts digital/analog I/O extension or output relay cards. The base Ethernet port speaks Modbus TCP and EtherNet/IP; serial is Modbus RTU on RJ45. Communication decision drives which option card to quote alongside the drive.
What's under the hood for commissioning
Wall-mounted drive with eight discrete inputs (DI7, DI8 pulse up to 30 kHz at 24 V DC), adjustable PID regulator, forced convection cooling at 295 m³/h (77932.2 US gal/hr), noise 62.4 dB, and altitude derating 1% per 100 m above 1000 m.
