Product Description:

The FC-301P15KT2131H4886 variable frequency drive is manufactured by Danfoss as part of the VLT FC 301 Automation Drives series. It is intended to regulate the speed and torque of standard induction motors in production lines, HVAC skids, and material-handling cells. By modulating output frequency and voltage, the drive lets controllers match motor speed to process demand, improve energy use, and minimize mechanical wear. This regulation also supports controlled acceleration and deceleration when machinery must operate at varying production rates.

The inverter delivers a continuous electrical output of 15 kW, equivalent to a mechanical shaft output of 20 HP. It accepts a 200 – 240 VAC supply and is wired for three-phase power, allowing direct connection to low-voltage industrial feeders. The power devices provide an efficiency of 0.96, so only four percent of the input energy is lost as heat. The control stage can synthesize carrier frequencies up to 590 Hz. One start per minute is permitted to protect the DC link from excessive electrical and thermal stress. The two digital outputs are rated at 40 mA, while the paired digital inputs tolerate 28 V DC without level shifting.

For finer process control, the encoder section produces frequency-modulated pulses with a maximum switching rate of 32 kHz. The flux-vector algorithm preserves motor excitation up to 300 Hz, allowing rated torque to be maintained during oversynchronous operation. One 12-bit analog output, linear within 0.5 percent of its span, provides a scalable speed or torque reference to supervisory controllers. When step-direction signaling is required, the terminal block can emit pulse trains up to 110 kHz. Combined with a 12-bit frequency-output resolution, this capability permits fine incremental adjustments without generating carrier ripple. The available analog, digital, and pulse interfaces allow the drive to exchange commands and operating data with external automation controls.