Product Description:

Danfoss manufactures the VLT FC 302 Automation Drives series. The drive identified as FC-302N355T5135U3837H2BGXXXXSXXXXAXBXCXXXXDX is a field-mounted variable frequency converter used in industrial automation to regulate motor speed and torque. It supports energy-efficient control of conveyors, pumps, fans, and process machinery.

The unit connects to plant mains at 380–500 VAC on a three-phase power line that may deviate by up to 3% from nominal and still operate correctly. It accepts 50/60 Hz ±5 % supply frequency and produces an output frequency that can be adjusted continuously between 0–590 Hz; when flux-mode regulation is selected, the band is limited to 0–300 Hz for high torque accuracy. Output voltage can follow 0–100% of the incoming level. A starting torque of 160 % for 60 s assists in breaking static friction, while an overload of 110% for 0.5 s helps prevent nuisance trips during momentary surges. Regenerative energy is dissipated through the built-in brake chopper once the DC bus reaches 810 V DC, and an overvoltage alarm circuit is provided. Electromagnetic compatibility complies with EN/IEC 61800-3 Category 3, and emissions meet EN 55011 Class A2. The printed circuit board has a conformal coating that helps protect it from moisture and dust.

Operation is handled through the Graphical LCP 102 keypad, which is supplied with the Standard language pack for multilingual menus. Because no C1 option is fitted, the drive is intended for fixed installations inside industrial zones that already include upstream filtering. Overvoltage protection trips at 855 V DC, notifying control systems before semiconductor limits are exceeded. Input displacement is maintained at ≥0.9 true power factor, helping reduce excessive reactive draw. The inverter integrates its brake chopper and EMC features into a single enclosure.