Product Description:

The FC-301P15KT2131L0688 is a variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. In an automation cell, the unit converts fixed three-phase line power into a controlled, pulse-width-modulated output for regulating an induction motor. This adjustable output allows the connected controller to match motor speed to process demand, reducing energy use and mechanical stress in conveyors, blowers, mixers, and similar equipment.

The drive has a rated electrical output of 15 kW, which corresponds to 20 HP. It accepts a three-phase line supply of 200–240 VAC, eliminating the need for an external transformer on compatible low-voltage installations. Internal insulated-gate bipolar transistors synthesize an output frequency of 0–590 Hz. The output amplitude can be adjusted within 0–100% of the supply voltage, supporting controlled motor operation across a broad speed range. The power section can be re-energized once per minute under the maximum power-up limit. Six digital input terminals register pulses from 0 to 110 kHz within a 0–24 V operating range, while an absolute input ceiling of 28 V protects the control circuit. Flux mode maintains constant magnetic flux from 0 to 300 Hz for applications requiring high torque at reduced speed.

Protective thresholds within the inverter continuously monitor the DC link during acceleration, steady operation, and regenerative deceleration. The brake chopper activates at 390 V DC, allowing excess regenerative energy to be dissipated during rapid motor deceleration. A high-voltage warning appears at 405 V DC, providing notice before the shutdown threshold is reached. The overvoltage trip occurs at 410 V DC, causing an automatic shutdown before excessive voltage can stress internal components. The control circuitry accepts an incoming line frequency of 50/60 Hz ±5%, allowing operation on common industrial power systems without auxiliary frequency conditioning.