Product Overview

The Danfoss FC-051 (VLT® Micro Drive) embodies maximum reliability and efficiency within an ultra-compact hardware footprint. Engineered as a genuine member of the VLT® family, this drive brings high-quality motor control to space-constrained industrial applications without compromising on performance. It excels in governing the speed and torque of AC motors in machinery such as conveyors, packaging units, and commercial pumps. Unlike budget-tier compact drives, the FC-051 features high-quality components and coated circuit boards as standard, ensuring a long service life in demanding factory environments. The drive integrates a comprehensive set of features—including a built-in RFI filter and a smart logic controller—allowing engineers to achieve sophisticated automation outcomes with minimal external hardware. Its intuitive interface and "plug-and-play" capability make it the premier choice for OEMs looking to reduce cabinet size while maintaining world-class motor protection.

Core Technical Advantages

Optimal Space Utilization

The compact book-style design allows for side-by-side mounting without any derating. This hardware architecture maximizes panel density, enabling engineers to fit more drives into a single control cabinet. The smart cooling system directs heat away from the electronics, maintaining high performance even when the drives are tightly packed.

Robust Industrial Hardware

Despite its small size, the FC-051 features high-quality electrolytic capacitors and coated PCBs (Printed Circuit Boards). This protection shields the sensitive internal logic from the corrosive effects of moisture and industrial dust, significantly reducing the risk of premature failure compared to non-coated alternatives.

Integrated Functional Intelligence

The built-in Smart Logic Controller (SLC) enables the drive to execute simple sequences based on digital or analog inputs. By processing these logic steps internally, the FC-051 reduces the need for external PLC logic in basic applications, streamlining the overall control architecture and reducing system latency.

Technical Specifications

Engineering Installation Guide

Electromagnetic Compliance (EMC)

The FC-051 includes a built-in RFI filter that minimizes radio frequency interference. To ensure full compliance with EMC directives, utilize shielded motor cables and ensure the shield makes 360-degree contact with the metal mounting plate using the provided EMC decoupling plate. This prevents electrical noise from disrupting nearby low-voltage sensor signals.

Thermal Management and Airflow

While side-by-side mounting is supported, maintain a vertical clearance of at least 100 mm above and below the drive. This clearance ensures that the natural convection and internal fan can effectively exhaust heat. For installations in small enclosures, ensure the ambient temperature does not exceed 50 °C to avoid thermal derating.

Motor Adaptation (AMA)

To achieve the highest possible torque and efficiency, always perform an Automatic Motor Adaptation (AMA) during commissioning. This process allows the FC-051 to measure the electrical characteristics of the connected motor without rotating it, optimizing the VVC+ control algorithm for that specific motor-cable combination.

Engineering Advantages

The FC-051 excels where cost-efficiency must meet industrial durability. Its high-torque performance at low speeds ensures smooth startups for heavily loaded conveyors, while its "Automatic Energy Optimization" (AEO) reduces power consumption during partial load conditions. The drive's ability to handle up to 50°C ambient temperature without a reduction in performance makes it a reliable workhorse for rooftop fans or hot production floors. Furthermore, the user-friendly LCP (Local Control Panel) supports a "copy-paste" function, allowing maintenance teams to clone parameters across multiple drives in seconds, drastically reducing commissioning time for large-scale deployments.

Delivery & Logistics

Delivery time: 3-5 days when payment finish.

Shipping Carriers: BY DHL/FEDEX/UPS.

Packaging: We utilize anti-static moisture-barrier bags and reinforced impact-resistant boxing. Every FC-051 is shipped in its original factory-sealed packaging to ensure the precision-calibrated electronics remain pristine during global transit.

Technical FAQs

Q1: Does the FC-051 require a separate keypad (LCP)?

A1: The FC-051 is often sold without the LCP (Local Control Panel) to save costs for OEMs. However, a keypad or a remote mounting kit is required for manual parameter adjustment. You can also use the MCT 10 software via a PC interface.

Q2: Can I use this drive for a single-phase input motor?

A2: The FC-051 supports single-phase 200-240V input, but the output is always 3-phase AC. It is designed to run 3-phase motors from a single-phase power source, which is common in small workshops or commercial buildings.

Q3: Is the RS485 port standard on this model?

A3: Yes, the FC-051 comes standard with an RS485 interface supporting the Modbus RTU protocol, allowing for easy integration into building management systems or PLC networks.

Q4: How does the "Brake Chopper" function work in this micro drive?

A4: Most FC-051 models from 1.5 kW and up feature a built-in brake chopper. When connected to an external braking resistor, this allows the drive to dissipate regenerative energy from the motor, enabling fast braking without overvoltage trips.