Danfoss VLT HVAC Basic Drive FC-101P7K5T4E20H4

Product Overview

The 131L9868 (131L9868) is a high-efficiency VLT® HVAC Basic Drive FC-101, specifically engineered by Danfoss to meet the rigorous demands of heating, ventilation, and air conditioning systems. Delivering a robust 7.5 kW (10 HP) of power, this frequency converter is the ideal solution for optimizing fan and pump performance in commercial and industrial building automation. By utilizing advanced variable speed control, the FC-101P7K5T4E20H4 significantly reduces energy consumption and mechanical wear on motor-driven systems. Its compact IP20 enclosure is designed for cabinet mounting, providing a cost-effective, "fit-and-forget" solution that enhances system reliability and reduces the total cost of ownership for HVAC infrastructure.

Technical Configuration

The FC-101 series is built on a streamlined hardware platform that prioritizes ease of installation and high energy efficiency. This unit operates on a three-phase 380 - 480 VAC mains supply and includes a built-in H4 RFI filter (Class A1/C2), ensuring compliance with electromagnetic compatibility standards in most industrial and commercial environments. The drive features an integrated HVAC-specific software suite, including a built-in PID controller for pressure and flow regulation, as well as a specialized "Fire Mode" for safety-critical smoke extraction fans. The 4.9 kg lightweight chassis is optimized for DIN rail or backplate mounting, and its modular design allows for rapid parameter setup using the local control panel or PC-based software.

Technical Specifications

Technical FAQs

Does this drive support communication protocols common in HVAC?

Yes. The FC-101 series comes standard with built-in FC Protocol, Modbus RTU, and BACnet (MS/TP). This allows the 131L9868 to integrate seamlessly into Building Management Systems (BMS) for remote monitoring and centralized control of 7.5 kW motor loads.

What is the benefit of the H4 RFI filter in a commercial building?

The H4 (Class A1/C2) filter minimizes electromagnetic interference generated by the drive. This is critical in commercial settings to prevent the drive from disrupting sensitive electronics, communication lines, or office equipment sharing the same power grid.

Can the 131L9868 be used with permanent magnet (PM) motors?

The VLT® HVAC Basic Drive is primarily optimized for standard induction motors. While it provides excellent control for asynchronous motors, users requiring high-performance PM motor control should verify compatibility with the specific firmware version (SXXX) or consider the FC-102 series for advanced motor motor technology support.

Engineering & Installation Guide

• Airflow Clearance: The FC-101 relies on vertical convection for cooling. Ensure a minimum of 100 mm clearance above and below the drive. Since this model is IP20, it must be installed in a clean, dry cabinet where the ambient temperature does not exceed 40 deg C to maintain the 7.5 kW power rating without derating.

• Fire Mode Implementation: When utilizing the Fire Mode for life-safety applications, ensure the control logic is wired to a dedicated digital input. Note that when Fire Mode is active, the drive will ignore most internal protective trips to keep the fan running as long as possible; therefore, periodic testing of this loop is essential.

• Cable Shielding: To maintain RFI Class A1 compliance, use shielded motor cables. The shield should be terminated with a 360-degree HF clamp at the drive's metal decoupling plate. Avoid "pigtail" grounding of the shield, as this creates high-frequency impedance and reduces the effectiveness of the H4 filter.