DANFOSS VLT MICRO DRIVE FC 51 136N8930 3.0 KW INVERTER

Product Overview

The FC-051P3K0T4E20HXBXCXXXSXXX (136N8930) is a compact and robust AC frequency converter from the Danfoss VLT Micro Drive FC 51 series, engineered to deliver 3.0 kW (4.0 HP) of reliable power for 3-phase industrial motor control. This specific variant is optimized for high-density panel installations where a centralized RFI filter is already present, or for environments where an internal filter is not required. The FC-051P3K0T4E20HXBXCXXXSXXX features coated printed circuit boards (PCBs) as standard, ensuring maximum uptime in demanding environments containing conductive dust or moisture. With an integrated brake chopper, this drive is perfectly suited for applications requiring rapid deceleration or high-inertia stops, such as conveyors, packaging machines, and fans in manufacturing or food processing facilities.

Suffix Breakdown

The model code FC-051P3K0T4E20HXBXCXXXSXXX utilizes a precise nomenclature to define its hardware configuration:

• FC-051: Identifies the VLT Micro Drive series, known for high power-to-volume ratio.

• P3K0: Represents the rated output power of 3.0 kW (4.0 HP).

• T4: Designed for 3-phase mains voltage ranging from 380 to 480 VAC.

• E20: Specifies an IP20 enclosure rating, suitable for protected cabinet mounting.

• HX: Indicates the absence of an internal RFI filter, providing a cost-effective solution for systems with external filtering.

• B: Built-in Brake Chopper included, enabling the connection of a braking resistor for dynamic deceleration.

• C: Coated PCBs, providing enhanced protection against environmental contaminants.

• X: Standard options for LCP, mains, and software adaptations.

Technical Specifications

Technical FAQs

Can I run the FC 51 drive without a Local Control Panel (LCP)?

Yes. While the FC-051P3K0T4E20HXBXCXXXSXXX is shipped without an LCP (X), it can be programmed via the VLT Motion Control Tool MCT 10 software. However, for initial commissioning and manual speed adjustment on the factory floor, an external LCP accessory is highly recommended.

Why should I choose the "HX" (No RFI Filter) model?

The "HX" model is often preferred in applications where the drive is part of a larger system that uses a centralized, high-performance RFI filter for the entire control cabinet. This reduces the footprint and cost of the individual drive while allowing the engineer to customize the filtering strategy for the entire site.

Is this drive compatible with high-torque starting loads?

The VLT Micro Drive series is designed to handle 150% torque for up to 60 seconds. For applications like heavily loaded conveyors or mixers, ensure the motor and drive current ratings are properly matched to the breakaway torque requirements of the machinery.

Engineering & Installation Guide

• Dynamic Braking: Since this unit (136N8930) includes a built-in brake chopper, you can connect an external braking resistor to the +BR and -BR terminals. This is essential for applications with high-inertia loads to prevent "Overvoltage" trips during deceleration. Ensure the resistor is mounted where heat can dissipate safely away from the drive.

• Airflow and Mounting: The "book-style" design supports side-by-side mounting. However, to ensure proper cooling, maintain at least 100 mm of free space above and below the unit. Do not install the drive directly above heat-generating components like braking resistors or reactors.

• Shielding and Grounding: Even without an internal RFI filter, motor cables must be shielded to minimize electromagnetic interference. Ground the shield at the drive's metal decoupling plate and the motor frame. For the "HX" model, pay extra attention to cable routing to keep power and control lines separated.