DANFOSS FC-051PK25T2E20H3XXCXXXSXXX 0.25kW 1.5A Three Phase 240V VFD H3XX

The DANFOSS FC-051PK25T2E20H3XXCXXXSXXX 0.25kW 1.5A Three Phase 240V VFD H3XX is a compact and robust Variable Frequency Drive (VFD) engineered for precise motor control in demanding industrial environments. Its key advantages lie in its energy efficiency, advanced control algorithms, and straightforward integration capabilities. This VFD boasts a power rating of 0.25 kW, a maximum output current of 1.5A, and operates on a 240V three-phase power supply, making it ideal for a wide range of applications requiring reliable speed and torque management. The H3XX series designation indicates specific advanced features and enhanced performance characteristics tailored for challenging operational demands.

Product Specifications

| Parameter             | Value                                       |

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

| Model Number          | FC-051PK25T2E20H3XXCXXXSXXX                  |

| Power Rating          | 0.25 kW                                     |

| Output Current        | 1.5 A                                       |

| Input Voltage         | 240V Three Phase                            |

| Series                | FC-051                                      |

| Enclosure Type        | IP20 (standard for this model family)       |

| Control Type          | V/f, Sensorless Vector Control              |

| Braking               | Integrated DC brake chopper (for external resistor) |

| Communication Options | Slot for optional communication modules     |

| Ambient Temperature   | -10°C to +40°C (derating may apply)          |

Core Features & Market Positioning

The DANFOSS FC-051PK25T2E20H3XXCXXXSXXX VFD distinguishes itself through its robust construction and advanced control capabilities, positioning it as a reliable solution for applications where uptime and performance are paramount. It incorporates Danfoss's renowned sensorless vector control, enabling precise speed and torque regulation even without motor feedback, a significant advantage over simpler V/f control methods. The integrated DC brake chopper facilitates quick and effective motor deceleration, crucial for safety and process control. Furthermore, its compact design and modular expansion options with communication cards allow for seamless integration into various automation architectures, including SCADA and PLC systems, enhancing its versatility and long-term value.

Key Application Scenarios

This 0.25kW VFD finds extensive use in various industrial sectors requiring precise motor speed control and energy savings. Common applications include pump and fan control for HVAC systems, where variable speed operation significantly reduces energy consumption. It is also well-suited for conveyor systems in material handling, small machine tools, and general-purpose machinery where smooth acceleration and deceleration are beneficial. The 240V three-phase input makes it compatible with a wide range of standard industrial power supplies, while its 1.5A current rating is optimal for motors in the 0.25kW to 0.37kW range, ensuring efficient operation without oversizing.

Practical System Integration Guidance

Integrating the DANFOSS FC-051PK25T2E20H3XXCXXXSXXX VFD into an existing system is facilitated by its user-friendly interface and clear terminal layout. For power wiring, ensure the three-phase 240V input is connected to L1, L2, and L3 terminals, and the motor is connected to T1, T2, and T3. The grounding terminal must be securely connected to the motor and drive chassis for safety. For braking applications, connect an external braking resistor to the B1 and B2 terminals, ensuring the resistor's power and resistance values are within the drive's specifications. Basic parameter setup involves configuring motor data (pole count, rated power, rated current) and desired operational modes via the control keypad or software.

Operation and Risk Mitigation

Safe operation of the DANFOSS FC-051PK25T2E20H3XXCXXXSXXX VFD mandates adherence to electrical safety standards. Always ensure power is disconnected before making any wiring changes. Proper ventilation is critical to prevent overheating; maintain adequate clearance around the drive as specified in the manual. Common troubleshooting involves checking for fault codes displayed on the drive. For instance, a "1" fault typically indicates an overcurrent condition, which could stem from motor overload or incorrect parameter settings. "2" indicates overvoltage, often related to input power issues or regeneration. Referencing the drive's fault code list is essential for accurate diagnosis and resolution.

Scalability & Long-Term Value

The DANFOSS FC-051PK25T2E20H3XXCXXXSXXX VFD is designed for scalability and long-term value within industrial automation systems. Its modular design allows for the addition of optional communication interface cards, such as Profibus, DeviceNet, or EtherNet/IP, enabling seamless integration into distributed control systems and facilitating advanced diagnostics and remote monitoring. This compatibility with various fieldbus networks ensures the drive can adapt to evolving automation strategies and support IIoT initiatives. The inherent energy savings from variable speed operation, combined with Danfoss's reputation for product longevity and support, provides a robust return on investment over the drive's operational lifespan.

Frequently Asked Questions

What is the maximum motor size for the DANFOSS FC-051PK25T2E20H3XXCXXXSXXX?

This VFD is rated at 0.25kW and 1.5A, typically suitable for motors up to 0.25kW.

Always refer to the motor's nameplate current and power rating against the VFD's continuous output current and power specifications to ensure compatibility. For applications near the VFD's limit, consider derating or a slightly larger VFD for longevity.

How do I connect a braking resistor to the DANFOSS FC-051PK25T2E20H3XXCXXXSXXX?

Connect the external braking resistor to terminals B1 and B2 on the drive.

Ensure the resistor's ohmic value and power rating are appropriate for the drive's braking capacity and the application's braking duty cycle. Incorrect resistor selection can lead to drive faults or damage.

What are the typical fault codes for this Danfoss VFD?

Common fault codes include '1' for overcurrent and '2' for overvoltage.

These codes indicate specific operational issues that require immediate attention to prevent damage. Consult the drive's manual for a comprehensive list and detailed troubleshooting steps for each code.