Product Description:

The FC-301P1K1T4134L2949 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. Installed between a three-phase supply and an induction motor, it reshapes the line waveform so controllers can vary speed, ramping, and braking electronically. This electronic regulation replaces mechanical throttles and helps pumps, fans, and conveyors operate with lower energy use and reduced mechanical wear.

The inverter is sized for 1.1 kW of continuous shaft power, which is equivalent to 1.5 HP. It connects to a mains supply of 380–480 VAC at a frequency of 50/60 Hz ± 5%, allowing one model to serve different regions. The input requires three-phase power, which balances current draw and minimizes harmonics. Once energized, the unit can deliver an output frequency of 0–590 Hz and an output voltage that tracks 0–100% of the incoming line voltage, supporting both subsynchronous and field-weakening operation. Electrical efficiency is supported by a true displacement power factor of ≥0.9, which reduces reactive current and eases upstream transformer loading.

The control electronics supply a 10 V reference at up to 15 mA, and the voltage remains within 10.5 V ± 0.5 V for stable analog feedback. A separate 24 V rail can source 200 mA, with its output maintained at 24 V (+1/−3 V) for sensors and small actuators. Logic inputs accept 0–24 V signals and tolerate a peak of 28 V DC without damage, providing a margin for voltage drop. For flux-vector and V/Hz modes, the inverter drives carrier pulses at up to 0–110 kHz; higher settings improve torque linearity at the expense of switching loss. Supporting parameters include a control input resistance of 4 kΩ, a flux-mode bandwidth of 0–300 Hz, and a supply tolerance of ±10%, allowing straightforward integration with a range of field devices.