Danfoss VLT Midi Drive FC 280 4,0 kW 134U2184

Product Overview

The FC-280P4K0T4E20H2BXCXXXSXXXXAX (FC-280P4K0T4E20) is a highly versatile VLT Midi Drive FC 280 designed to bridge the gap between basic micro drives and high-end automation drives. Delivering 4.0 kW (5.5 HP) of precision power, this three-phase frequency converter is engineered for a wide array of mid-range applications including conveyors, mixers, and packaging systems. The FC-280 series is recognized for its compact design and integrated functional safety, significantly reducing the need for external components. With its high-torque performance and built-in harmonics mitigation, it ensures stable motor control and energy efficiency in demanding B2B industrial environments, even where installation space is restricted.

Technical Configuration

This specific FC 280 configuration is optimized for durability and integration within a centralized control cabinet. It features an integrated Brake IGBT, allowing for dynamic braking of high-inertia loads when paired with an external resistor. The internal PCBs are conformal coated to Class 3C3 standards (IEC 721-3-3), providing robust protection against chemical gases and corrosive elements. For communication, it utilizes the integrated Modbus RTU protocol (AX), facilitating seamless data exchange with higher-level PLCs. The H2 RFI filter ensures compliance with Class A2 (C3) electromagnetic standards, suppressing interference in industrial power grids.

Technical Specifications

Technical FAQs

How do I access the parameters since this unit has no LCP installed?

The "X" suffix indicates no Local Control Panel is provided. You can either plug in a removable VLT Control Panel LCP 21 (numerical) or LCP 102 (graphical), or use the MCT 10 Setup Software via the built-in USB port for comprehensive commissioning and backup.

What is the advantage of the 3C3 coated PCB in this model?

The 3C3 coating provides superior protection in harsh industrial climates where high concentrations of corrosive gases (like Hydrogen Sulfide) are present. This prevents circuit corrosion and significantly extends the drive's MTBF (Mean Time Between Failure).

Does this drive support Safe Torque Off (STO)?

Yes, the VLT Midi Drive FC 280 comes standard with a dual-channel Safe Torque Off (STO) function. This allows for a safe stop without the need for external safety contactors, complying with ISO 13849-1 PL d and SIL 2.

Engineering & Installation Guide

Side-by-Side Mounting: The FC 280 is designed for true side-by-side mounting without any derating. This allows for maximum density on the DIN rail or backplate. Ensure that the cooling fans are unobstructed and that the air intake at the bottom and exhaust at the top have at least 100 mm of clearance.

Dynamic Braking: To utilize the integrated Brake IGBT for rapid deceleration, an external brake resistor must be connected to terminals R+ and R-. Ensure the resistor is sized correctly for the application's duty cycle to prevent thermal overload of the braking transistor.

Modbus RTU Grounding: When networking multiple FC 280 drives via Modbus RTU, use a shielded twisted-pair cable. To prevent ground loops and communication errors, only ground the shield at one end (typically the PLC end) or use a decoupling plate to ensure a low-impedance high-frequency path to the chassis.