Product Description:

The 131B1002 variable frequency drive is produced by Danfoss for the VLT FC 301 Automation Drives series. As a member of the VLT AutomationDrive FC product group, the unit converts fixed-frequency mains power into a controlled output for regulating the speed of three-phase induction motors. This capability allows plant controllers to manage conveyors, pumps, blowers, and similar loads according to changing process demands while avoiding mechanical throttling. Installed inside a control cabinet, the drive forms the connection between PLC logic and the motor, supporting automated speed adjustments and energy-efficient operation. Its mechanical layout is suitable for the A, B, and C cabinet mounting frames used with this product range.

This model accepts a mains supply ranging from 380 to 480 VAC through three-phase power lines. The broad input range supports connection to common industrial electrical systems without requiring a separate voltage conversion stage. Conducted electrical emissions are limited by the integral RFI Class A1/B filter, which helps reduce radio-frequency interference transmitted through the supply wiring. The IP20 chassis enclosure protects against accidental contact with hazardous internal parts when the drive is properly installed behind a control panel door. A built-in brake chopper manages regenerated energy during rapid motor deceleration, helping prevent excessive voltage from accumulating on the DC link. This braking function is useful for applications with frequent stops, reversing movements, or loads that continue driving the motor as they slow down.

Operating and diagnostic functions are accessed from the front fascia through a graphical local control panel with multilevel menus and real-time status readouts. The panel provides direct access to operating values and configurable parameters, allowing drive behavior to be reviewed from the cabinet without a separate display device. Power and control conductors pass through standard cable entries that align with typical gland plates and support orderly routing inside the enclosure. The drive uses coated printed circuit boards to improve resistance to humidity and airborne contaminants commonly present in production areas. This coating helps protect sensitive electronic components when the surrounding cabinet air contains dust or moisture. The internal series identifier is 301, which corresponds to the FC 301 platform and its associated parameter structure.