DANFOSS FC-051P18KT4E20H3BXCXXXSXXX 18.5kW 37A Three Phase 480V VFD H3BX

The DANFOSS FC-051P18KT4E20H3BXCXXX 18.5kW 37A Three Phase 480V VFD (Variable Frequency Drive) is a robust and advanced solution designed to optimize motor control in demanding industrial environments. This VFD, with its 18.5 kW power rating, 37 Amp output current, and 480V three-phase input, offers exceptional performance and reliability. Key advantages include its high efficiency, precise motor speed control, and integrated advanced functionalities for seamless system integration. The H3BX variant specifically denotes enhanced features and performance capabilities crucial for specialized applications.

Product Specifications

| Parameter             | Value                                            |

| :-------------------- | :----------------------------------------------- |

| Model Number          | FC-051P18KT4E20H3BXCXXX                          |

| Power Rating          | 18.5 kW                                          |

| Output Current        | 37 A                                             |

| Input Voltage         | 480V, Three Phase                                |

| Series/Variant        | VLT® HVAC Drive FC 500 Series, H3BX Code         |

| Enclosure Type        | IP21 / NEMA 1 (Standard for H3BX)                |

| Control Method        | V/Hz, Vector Control (with optional encoder)     |

| Braking Option        | Integrated DC bus, optional braking resistor     |

| Communication Options | Advanced options available (e.g., Profibus, FC CAN) |

| Ambient Temperature   | -20°C to +50°C (derating may apply)               |

Core Features & Market Positioning

The DANFOSS FC-051P18KT4E20H3BXCXXX stands out in the industrial automation market due to its advanced control algorithms, robust build quality, and comprehensive feature set tailored for HVAC and general-purpose industrial applications. Its market positioning is defined by its ability to deliver superior energy savings through precise motor speed regulation, significantly reducing operational costs compared to fixed-speed systems. The VLT® HVAC Drive series, to which this model belongs, is recognized for its reliability and ease of use, making it a preferred choice for system integrators and end-users seeking dependable performance. The H3BX designation signifies a higher performance variant, often including enhanced thermal management and expanded I/O capabilities.

Key Application Scenarios

This 18.5kW VFD is ideally suited for a wide array of applications where precise motor control and energy efficiency are paramount. Common scenarios include variable speed pumping systems in water and wastewater treatment plants, fan control in large commercial buildings and industrial ventilation systems, and conveyor belt management in manufacturing and logistics. Its 480V rating and 37A output current make it a perfect fit for medium-sized motors driving chillers, air handling units, and process machinery. The robust design ensures reliable operation even in harsh industrial environments.

Practical System Integration Guidance

Integrating the DANFOSS FC-051P18KT4E20H3BXCXXX into existing systems is streamlined by its user-friendly interface and flexible communication options. Proper wiring is critical, ensuring the correct connection of input power, motor leads, and any external control signals or sensors. The drive supports various motor types, and parameterization should be performed to match the motor's nameplate data and the application's specific requirements, including acceleration/deceleration ramps, minimum/maximum speed limits, and overload protection settings. For advanced control, encoder feedback can be utilized for precise speed and torque regulation.

Operation and Risk Mitigation

Safe operation of the DANFOSS FC-051P18KT4E20H3BXCXXX necessitates adherence to electrical safety standards during installation and maintenance. Always ensure power is disconnected before accessing internal components. Familiarization with the drive's fault codes is essential for efficient troubleshooting. Common issues can arise from incorrect parameter settings, environmental factors like excessive dust or moisture, or motor-related problems. The drive offers built-in protection features, such as overcurrent, overvoltage, and undervoltage protection, to mitigate risks and safeguard connected equipment.

Scalability & Long-Term Value

The DANFOSS FC-051P18KT4E20H3BXCXXX offers significant long-term value through its inherent scalability and compatibility with Danfoss's broader ecosystem of automation solutions. Its modular design and available communication protocols allow for easy integration into supervisory control and data acquisition (SCADA) systems and industrial internet of things (IIoT) platforms. This facilitates remote monitoring, diagnostics, and advanced data analytics, enabling predictive maintenance and further optimization of industrial processes. Upgrade paths to newer technologies or expanded functionalities can be achieved with minimal disruption due to Danfoss's commitment to backward compatibility and standardized interfaces.

Frequently Asked Questions

What is the maximum motor size for the DANFOSS FC-051P18KT4E20H3BXCXXX?

The DANFOSS FC-051P18KT4E20H3BXCXXX is rated for 18.5kW, which typically corresponds to motor sizes up to 25 horsepower.

This rating ensures it can adequately supply the power and current requirements for motors within this specified range.

Always verify the motor's full load current against the VFD's 37A output rating for optimal performance.

How do I set up basic parameters on this VFD?

Begin by ensuring correct input power and motor connections are made.

Access the parameter menu and set motor nameplate data, like voltage, frequency, and rated current.

Configure basic start/stop commands and set desired acceleration/deceleration times for smooth operation.

Can this VFD be used with a standard asynchronous motor?

Yes, the DANFOSS FC-051P18KT4E20H3BXCXXX is designed for use with standard asynchronous (induction) motors.

It supports both V/Hz control and, with optional feedback, advanced vector control for improved performance.

Ensure motor compatibility and proper parameterization for optimal efficiency and motor protection.

What are the typical fault codes for this Danfoss VFD?

Common fault codes may indicate overcurrent, overvoltage, or undervoltage conditions.

Other frequent codes relate to motor thermal overload, external fault inputs, or communication errors.

Consult the product manual for a comprehensive list and specific troubleshooting steps for each code.

Does the H3BX code imply specific communication protocols?

The H3BX code typically indicates a higher-performance variant of the FC 500 series.

While not exclusively defining communication, it often supports advanced fieldbus options.

Check the detailed specifications for your specific FC-051P18KT4E20H3BXCXXX to confirm available communication modules.

What is the enclosure rating of the FC-051P18KT4E20H3BXCXXX H3BX?

The standard enclosure rating for the H3BX variant is IP21, also known as NEMA 1.

This rating provides protection against solid objects larger than 12.5mm and vertically falling water drops.

For more demanding environments, external enclosures or different VFD models might be necessary.

How does this VFD contribute to energy savings?

It achieves energy savings by precisely matching motor speed to the actual load demand.

This variable speed control significantly reduces energy consumption compared to fixed-speed motors.

The high efficiency of the VFD itself also minimizes power loss during operation.

What are the key advantages of using a VLT® HVAC Drive?

VLT® HVAC Drives offer superior reliability, advanced control features, and exceptional energy efficiency.

They are designed for easy integration, commissioning, and user-friendly operation within HVAC systems.

Danfoss's expertise in this sector ensures robust performance and long-term operational savings.

Can this VFD be controlled remotely?

Yes, remote control is achievable through various methods supported by the VFD.

This often involves utilizing its digital or analog inputs for start/stop signals or speed references.

Alternatively, integrating it with a Building Management System (BMS) via communication protocols allows comprehensive remote management.

What is the operational temperature range for this unit?

The DANFOSS FC-051P18KT4E20H3BXCXXX typically operates within an ambient temperature range of -20°C to +50°C.

Note that performance may be derated at the higher end of this temperature range.

Ensure adequate ventilation and consider derating if operating continuously near the maximum temperature.