Product Description:

The FC-301P22KT4134L2923 is an AC variable frequency drive designed by Danfoss for the VLT FC 301 Automation Drives series. The unit converts fixed-frequency mains power into a modulated output for automated production lines. This conversion lets machine controllers adjust motor speed, torque, and process throughput according to operating demands.

The inverter can deliver a continuous shaft output of 22 kW, equivalent to 30 HP, when supplied from a network between 380–480 VAC. The drive operates on three-phase power, allowing direct connection to standard plant distribution without phase conversion. A maximum fundamental output of 590 Hz supports high-speed induction or permanent-magnet motors. Carrier switching reaches 32 kHz to minimize audible noise and current ripple. Motor leads may be shielded up to 50 m or unshielded up to 75 m, and the mains side accepts conductors as thick as 35 mm². Only one power-up is permitted per minute to protect the DC-link capacitors. The drive handles flux-vector control up to 300 Hz, helping it maintain torque at elevated frequencies.

The internal bus issues a warning at 810 V DC and triggers an overvoltage alarm at 820 V DC, enabling coordinated braking or line-contactor trips before component limits are exceeded. Control terminals accept logic signals up to 28 V DC, and each digital output can source a maximum of 40 mA. Two pulse outputs are available for tachometer or positioning tasks, with a minimum pulse width of 4.5 ms. Safe torque-off monitoring draws 50 mA RMS at 24 V, which keeps power dissipation low in connected safety relays. These control connections support integration with machine logic, feedback devices, and external safety circuits while keeping signal wiring separate from the primary power conductors.