DANFOSS FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX 90kW 177A VLT AQUA Drive 3AC 480V High Power

The Danfoss VLT AQUA Drive FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX is a robust 90kW, 177A, 3-phase, 480V variable frequency drive engineered for demanding water and wastewater applications. This high-power unit excels in delivering precise motor control and significant energy savings, crucial for optimizing pumping operations. Its advanced design ensures exceptional reliability and performance in harsh industrial environments.

Product Specifications

| Parameter               | Value                                          |

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

| Model Number            | FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX        |

| Power Rating            | 90 kW                                          |

| Rated Current           | 177 A                                          |

| Input Voltage           | 3-phase, 480V                                  |

| Drive Type              | VLT AQUA Drive                                 |

| Protection Class        | IP20 (with extended options)                   |

| Enclosure               | Standard (customizable options available)      |

| Filter Options          | Integrated harmonic filter (RFI/EMC Class A)   |

| Braking Options         | Dynamic braking (external resistor required)   |

| Communication Options   | Various fieldbus options (e.g., Profibus, Modbus) |

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

| Altitude                | Up to 1000m (derating may apply)               |

Core Features & Market Positioning

The DANFOSS FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX stands out in the market due to its specialized design for water and wastewater sectors. Its integrated harmonic filter significantly reduces electromagnetic interference, crucial for compliance and system stability. The drive's advanced control algorithms, including a dedicated pump and fan controller, enable highly efficient operation and precise flow management. Danfoss's reputation for reliability and robust construction positions this VLT AQUA Drive as a premium solution for critical infrastructure, offering long-term operational value and reduced total cost of ownership.

Key Application Scenarios

This 90kW VLT AQUA Drive is exceptionally well-suited for large-scale water and wastewater treatment plants. Common applications include main pump control for raw water intake, treated water distribution, and effluent management. It is also ideal for building services, such as HVAC circulation pumps and booster pump systems, where consistent pressure and energy efficiency are paramount. The drive's ability to handle varying loads and provide precise flow control makes it a vital component in applications requiring sophisticated process automation.

Practical System Integration Guidance

Integrating the FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX requires adherence to specific wiring and installation guidelines to ensure optimal performance and safety. Input power connections should be made to terminals L1, L2, and L3, ensuring proper grounding. Motor connections are to T1, T2, and T3. For applications requiring dynamic braking, an external braking resistor must be connected to the designated terminals, ensuring the resistor's wattage and resistance match the drive's specifications. Commissioning involves configuring motor parameters, setting speed references (e.g., via analog input or fieldbus), and optimizing PID control loops for specific applications.

Operation and Risk Mitigation

Safe operation of the DANFOSS FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX necessitates careful attention to environmental conditions and maintenance. Ensure the drive is installed in a clean, dry location with adequate ventilation to prevent overheating, as derating may be required above 50°C. Regularly inspect power and motor cables for signs of wear or damage. Common fault codes, such as those indicating overcurrent (e.g., F001) or overvoltage (e.g., F002), often require checking motor load, supply voltage, and braking resistor integrity. Always follow lockout/tagout procedures before performing any maintenance.

Scalability & Long-Term Value

The VLT AQUA Drive platform offers significant scalability and long-term value. Its modular design allows for the integration of various option modules, including advanced fieldbus communication cards for seamless integration into SCADA and IIoT systems. This enables enhanced monitoring, remote diagnostics, and predictive maintenance capabilities. Compatibility with existing Danfoss control systems and a wide range of motor types ensures flexibility for upgrades and expansions. The drive's inherent energy efficiency contributes to substantial operational cost savings over its extended lifespan, representing a sound investment for industrial facilities.

Frequently Asked Questions

What is the maximum ambient temperature for the Danfoss FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX?

The standard operating temperature range is from -20°C to +50°C. Exceeding this temperature may necessitate derating.

Proper ventilation is crucial to maintain optimal operating temperatures and ensure drive longevity in demanding environments.

Consult the product manual for specific derating curves and guidelines when operating in elevated ambient conditions.

How do I connect a braking resistor to the FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX?

Connect the external braking resistor to the designated DC bus terminals, typically marked DC+ and DC-. Ensure proper torque is applied to terminal connections.

Select a braking resistor with the correct wattage and resistance values to match the drive's braking capabilities and the application's duty cycle.

Verify the resistor's physical condition and wiring integrity before commissioning to prevent damage to the drive or incorrect braking performance.

What are common fault codes for this VLT AQUA Drive model?

Overcurrent faults (e.g., F001) typically indicate a motor issue, excessive load, or short circuit.

Overvoltage or undervoltage faults (e.g., F002, F003) suggest problems with the AC supply or braking resistor circuit.

Other common faults relate to motor thermal overload or communication errors, requiring specific diagnostic steps.

Can the Danfoss FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX integrate with building management systems?

Yes, various fieldbus communication modules are available for seamless integration. These include options for Profibus, Modbus TCP/IP, and BACnet.

This integration allows for centralized control, monitoring, and data logging, enhancing operational efficiency and diagnostics.

The drive's advanced control features can be leveraged by BMS for sophisticated process optimization, such as maintaining constant pressure or flow.

What is the IP rating of the Danfoss FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX?

The base model typically comes with an IP20 enclosure, offering protection against solid objects larger than 12.5mm.

For applications requiring higher ingress protection against dust and water, optional IP54 or IP66 enclosures are available.

Always ensure the chosen enclosure rating is appropriate for the environmental conditions of the installation site.

How can I optimize energy efficiency with this drive?

Utilize the drive's built-in energy-saving features, such as the automatic energy optimization function. This function adapts the motor voltage to the load.

Implement precise speed control via PID loops to match pump output to demand, avoiding unnecessary energy consumption from over-pumping.

Regularly monitor performance and adjust parameters to ensure the drive operates at peak efficiency for the specific application.

What type of motor is compatible with the FC-111P90KT4P20H2XXCXXXSXXXXAXBXCXXXXDX?

This drive is designed to control standard 3-phase induction motors, including asynchronous and permanent magnet motors.

Ensure the motor's nameplate data (voltage, current, frequency, power) is accurately entered into the drive's parameters for optimal performance.

For applications with very long motor cable runs, consider using output filters or shielded cables to mitigate voltage reflections and protect the motor insulation.

What are the main advantages of the VLT AQUA Drive series?

The VLT AQUA Drive series offers excellent control accuracy and dynamic response, critical for water applications.

It features integrated harmonic mitigation to comply with power quality standards and protect the grid.

The drives are designed for high reliability and a long operational life, even in challenging environments, reducing maintenance costs.

How do I perform a basic commissioning of the drive?

First, ensure safe power isolation and then connect the motor and control wiring according to the manual.

Enter essential motor data, such as rated power, voltage, current, and speed, into the drive's parameter settings.

Configure the desired control mode (e.g., V/f, vector control) and set up speed references and application-specific parameters like PID settings.

What are the IIoT integration capabilities of this drive?

The drive supports various optional communication modules for seamless integration into IIoT platforms.

These modules allow for real-time data acquisition, remote monitoring, diagnostics, and predictive maintenance.

Integration enables advanced analytics and control strategies, optimizing overall plant operations and asset management.