Product Description:

The FC-301PK37T4134L2712 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. As part of the VLT AutomationDrive FC product group, this compact controller regulates the speed of three-phase induction motors in conveyors, pumps, and general process equipment. By modulating the motor supply waveform, it allows users to match torque and flow to current demand, reducing energy use and mechanical stress. In material-handling cells or HVAC skids, the drive interfaces directly with PLC networks through its native I/O and fieldbus options.

The power stage accepts a three-phase mains input of 380–480 VAC at 50/60 Hz ±5% and delivers up to 0.37 kW, or 0.50 HP, of mechanical output. The inverter synthesizes motor frequencies from 0–590 Hz, while the output voltage is adjustable from 0% to 100% of the incoming line voltage. Line symmetry must remain within a 3.0% phase imbalance, and only two power-ups per minute are permitted to protect the inrush circuitry. Efficient operation is supported by a displacement power factor greater than 0.98 and a true power factor of at least 0.9 at rated load. During flux-mode operation, the controller tracks magnetizing current across the 0–300 Hz range while using three-phase power without external conversion.

The control section provides an analog output channel rated at 0/4–20 mA with 12-bit resolution. A digital pulse input spanning 0–110 kHz supports encoderless speed commands. Parameter tables carry the series identifier 301 so service tools can recognize this model automatically. Motor leads may extend to 50 m when shielded or 75 m when unshielded, maintaining electromagnetic compatibility for remote installations. These communication and cabling capabilities allow the drive to exchange real-time data with supervisory controllers while preserving signal integrity across typical plant wiring distances.