Danfoss 136N8924 FC-051P1K5S2E20HXBXCXXXSXXX VLT Micro Drive

Product Overview

The Danfoss 136N8924 (FC-051P1K5S2E20HXBXCXXXSXXX) is a highly compact VLT Micro Drive FC 51 designed for efficient, single-phase motor control. Delivering 1.5 kW (2.0 HP) in a "book-style" form factor, this drive is an excellent choice for space-constrained applications such as small conveyor systems, specialized pumps, and OEM machinery where power density is key. By omitting an integrated RFI filter, this specific configuration provides a cost-effective solution for environments where electromagnetic compatibility standards are managed at the system level or are not a primary constraint.

Technical Configuration

The 136N8924 combines simplified installation with robust performance features suited for demanding industrial environments.

• Hardware Architecture: Designed for single-phase 200 - 240 VAC supply, this model provides high-efficiency power conversion for 1.5 kW motors. Its IP20 chassis is purpose-built for side-by-side mounting, enabling high-density integration into control panels.
• Operational Control: The unit includes an integrated brake chopper (B), allowing for the dissipation of kinetic energy through an external braking resistor—essential for controlling inertia in rapid-stop applications.
• Environmental Protection: Despite its compact nature, the drive features conformal coated PCBs (C). This critical protection shields internal electronics from conductive dust, humidity, and corrosive vapors common in manufacturing plants, ensuring long-term reliability.
• System Flexibility: As an "HX" model (No RFI filter), this drive is tailored for applications where external filtering or specific power-grid conditions make a built-in filter unnecessary.

Technical Specifications

FAQs

Why would I choose a drive "Without RFI Filter" (HX)?

Choosing a model without an integrated RFI filter can be beneficial in applications where electromagnetic noise levels are already handled by other system components, or where the specific power grid configuration makes standard filters incompatible. It provides a more streamlined and cost-effective option for your specific application requirements.

How does the integrated brake chopper benefit my conveyor application?

In conveyor systems, stopping a load can cause back-EMF (regenerative energy) to flow back into the drive. The integrated brake chopper senses this voltage rise and directs the energy to an external resistor, preventing the drive from shutting down on an overvoltage fault and ensuring a controlled stop.

Is this drive suitable for a machine that runs 24/7?

Yes. The FC 51 series is built to last. The effective heatsink design actively draws heat away from the sensitive electronics, and the inclusion of coated PCBs ensures that the internal components remain protected from common industrial environmental hazards during continuous operation.

Engineering Guidelines and Best Practices

• Installation: Maintain a minimum vertical clearance of 100 mm above and below the drive to facilitate proper convective cooling. Always mount the unit vertically to ensure the internal heatsink operates at maximum efficiency.
• EMI Considerations: Since this model lacks an internal RFI filter, you must take extra care to ensure your system design complies with local electromagnetic standards. Use shielded motor cables and ensure the shield is bonded with a 360-degree clamp at both the drive and the motor to mitigate noise emissions.
• Commissioning: Use the VLT Motion Control Tool or the guided programming menu to input your motor’s specific nameplate data. Proper parameterization is the most effective way to ensure the drive achieves its rated efficiency and delivers the expected torque characteristics for your load.