Product Description:

Danfoss supplies the 131X6839 as part of its VLT FC 302 Automation Drives series. The unit is a variable-frequency drive built for cabinet installation where it governs induction or permanent-magnet motors to match speed with real-time load demands in automated machinery, conveyors, and process equipment. It regulates motor speed and torque by adjusting output frequency and voltage during operation, which helps support stable process control across changing load conditions.

The drive delivers a continuous output of 15 kW, giving a clear indication of the thermal and electrical load the cabinet must handle. This rating corresponds to a mechanical output of 20 HP, allowing a direct comparison with legacy motor nameplate data. An input supply of three-phase power supports balanced line currents and reduced harmonic stress on the mains. Its enclosure has an IP20 / chassis classification, so it requires placement inside a protective panel while still permitting convenient access for wiring. The mechanical layout uses normal cabinet mount A, B, and C frames, meaning the heatsink aligns with standard frame cutouts for efficient airflow in multiline installations. Dynamic braking energy is handled internally by a brake chopper, which dissipates regenerated power during rapid deceleration and helps prevent DC-bus overvoltage faults.

System integration can be expanded with the MCB-103 resolver option, which enables resolver feedback where shaft position information is needed for low-speed control or torque-rich startup. The power boards are coated, improving resistance to dust and moisture that are common in fan-cooled cabinets or humid production areas. Operators interact through a graphical local control panel that displays parameters, trends, and alarms without external tools. Standard cable entries, the included firmware set, and default language packs round out the configuration so the drive can be matched to fieldbus, I/O, or safety expansions when required.