The ATV980C31T4X1 is a variable speed drive from the Altivar Process ATV900 family, specifically the ATV980 Regenerative System variant. It's a floor-standing compact unit rated for 355 kW heavy duty / 280 kW normal duty on a 480 V three-phase supply, delivering regenerative braking capability that recovers energy back to the line instead of dumping it across a brake resistor. Total harmonic current distortion (THDI) is held below 5%, which keeps the drive from polluting the plant distribution with harmonics — a real advantage when you're feeding a sensitive bus or trying to avoid oversizing transformers and upstream filtering. The unit ships as a complete package: enclosure (Spacial SF), graphical operating panel mounted in the door, main switch, line choke, dv/dt filter choke, and both main supply and motor terminal blocks are all included. That means less procurement chasing and fewer integration surprises at the panel shop.
The drive carries CE marking and is designed to IEC 61800-2 (adjustable speed drives), IEC 61800-3 (EMC), IEC 61800-5-1 (safety), and IEC 60204-1 (electrical equipment of machines). Pollution degree 2 per IEC 61800-5-1, overvoltage category III — standard for fixed-installation industrial drives.
IP23 protection means it's splash-proof but not hose-down rated — suitable for indoor industrial environments where occasional dripping water or condensation is possible, but not for washdown zones. Forced-convection cooling; keep the ventilation paths clear and respect the 40 °C derating curve above that ambient. Mount vertical ±10°, and keep ambient storage between -25 and 70 °C. Vibration resistance per IEC 60068-2-6 (3M3 class) and shock resistance to 4 gn for 11 ms — tough enough for most industrial floors, including conveyors and crusher feeds.
Communications and integration
Onboard communication includes Modbus serial, EtherNet/IP, and Modbus TCP — covers the common plant-floor protocols without needing an option card for basic networking. The graphical terminal in the door gives local access for commissioning and diagnostics. EMC immunity is tested to level 3 for electrostatic discharge, radiated RF, conducted RF, and surges (1.2/50 µs - 8/20 µs), with fast transient immunity at level 4. That's a solid spec for noisy environments like welding lines or large motor starter panels.