Product Description:

The FC-301P22KT2134L2975 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. Within an automation cell, the unit converts fixed-frequency mains power into a variable-frequency output for controlling an induction motor. This conversion lets a connected controller regulate motor speed and torque according to changing process demands. The adjustable output can reduce unnecessary energy use in conveyors, pumps, fans, and other machinery that does not need to operate continuously at full speed.

The inverter is rated for a continuous motor output of 22 kW, which corresponds to 30 HP. It accepts a supply of 200–240 VAC through three conductors because it is designed for three-phase power. Internal power factor correction keeps the displacement factor above 0.98 and the true power factor at or above 0.9, limiting the reactive load placed on the feeder. When operated in vector control, the drive can reach a maximum output frequency of 590 Hz. Only one power-up per minute is permitted to control surge current and reduce electrical stress. The DC-link brake clamps the bus at 390 V DC to dissipate regenerative energy returned by the motor during deceleration.

The control section provides two programmable digital or pulse outputs for status signaling or encoder emulation. Carrier switching can reach 32 kHz for quieter motor operation, although operating conditions may affect the available switching rate. A bus voltage warning occurs at 405 V DC, and an overvoltage trip occurs at 410 V DC to protect the power semiconductors. In flux mode, the stator frequency is limited to 300 Hz to maintain stable motor magnetization at high speed. Supply phase imbalance must remain below 3.0% to limit DC-link ripple and uneven loading. The maximum shielded motor cable length is 50 m, while an unshielded motor cable can extend to 75 m. These cable limits help keep voltage rise and reflected-wave effects within suitable levels for standard motor insulation.