INVT GD20-110G-4 High Power Compact VFD for Industrial Water Pump Control

The INVT GD20-110G-4 High Power Compact VFD is a robust solution engineered for precise and efficient control of industrial water pumps. This Variable Frequency Drive (VFD) distinguishes itself with advanced features such as independent heat dissipation, a compact footprint, and multi-pump control capabilities, making it a superior choice for demanding water management applications. Its robust design ensures reliable operation in harsh industrial environments, while sophisticated control algorithms optimize pump performance, leading to significant energy savings and extended equipment lifespan. Key technical parameters include a rated power of 110kW, an input voltage range of 380V/400V/415V ±15%, and an output frequency range of 0-300Hz, all contributing to its high-performance profile.

Product Specifications

| Parameter             | Specification                                      |

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

| Model                 | GD20-110G-4                                        |

| Rated Power           | 110 kW (150 HP)                                    |

| Input Voltage         | 380V/400V/415V ±15% (3-Phase)                      |

| Output Frequency      | 0-300 Hz                                           |

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

| Protection Level      | IP20                                               |

| Cooling Method        | Independent Air Cooling                            |

| Ambient Temperature   | -10°C to 50°C (derating above 40°C)                |

| Humidity              | Max 90% RH (non-condensing)                        |

| Altitude              | Max 1000m (derating above 1000m)                   |

| Installation          | Wall-mounted or cabinet installation               |

| Communication Options | RS485 (Modbus RTU)                                 |

Core Features & Market Positioning

The INVT GD20-110G-4 establishes a strong market position through its independent heat dissipation design, a critical advantage that ensures stable operation even under continuous heavy loads and in ambient temperatures up to 50°C. This feature significantly enhances reliability and extends the VFD's service life, differentiating it from integrated cooling designs susceptible to overheating. Furthermore, its compact dimensions allow for flexible installation in space-constrained industrial environments. The drive’s advanced multi-pump control functionality is a key competitive edge, enabling synchronized operation of multiple pumps to precisely match demand, thereby optimizing system efficiency and reducing wear on individual units. This capability is particularly valued in large-scale water supply and distribution systems.

Key Application Scenarios

This high-power VFD is ideally suited for a wide array of industrial water pump control applications. Its robust performance makes it an excellent choice for municipal water supply and drainage systems, where consistent pressure and flow are paramount. In industrial process water management, it ensures precise control of water circulation for cooling, heating, and transfer operations within manufacturing plants, chemical facilities, and power generation stations. The GD20-110G-4 also excels in irrigation systems, providing variable speed control to optimize water delivery to agricultural fields, thereby conserving water resources and improving crop yields. Additionally, its capability for managing multiple pumps makes it invaluable for building water supply systems in high-rise structures, ensuring stable water pressure across all levels.

Practical System Integration Guidance

Integrating the INVT GD20-110G-4 into existing industrial water pump systems is streamlined due to its user-friendly design and comprehensive connectivity options. For basic wiring, ensure the incoming power supply is correctly connected to the L1, L2, and L3 terminals, and the motor leads are connected to T1, T2, and T3. Grounding terminals must be securely connected for safety. For advanced control, the RS485 communication port allows seamless integration with SCADA systems or PLCs using the Modbus RTU protocol, facilitating remote monitoring and control. Commissioning typically involves setting essential parameters such as motor rated current, rated frequency, and maximum frequency, often accessible through the intuitive control panel or via INVT’s configuration software. Advanced users can configure V/f curves or sensorless vector control for enhanced performance, tailored to specific pump characteristics.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD20-110G-4 is facilitated by its built-in protection features and clear operational guidelines. Users must adhere to the specified environmental conditions, ensuring the VFD is installed in a well-ventilated area, away from excessive dust, moisture, or corrosive gases, and within the operational temperature range of -10°C to 50°C. Regular inspection of cooling fan operation and filter cleanliness is recommended to maintain optimal thermal performance. In case of faults, the drive provides detailed error codes that aid in rapid troubleshooting. Common issues like overcurrent or overvoltage can often be resolved by checking motor load, wiring integrity, or input power stability. Always consult the user manual for specific fault code interpretations and recommended corrective actions before attempting any troubleshooting.

Scalability & Long-Term Value

The INVT GD20-110G-4 offers significant scalability and long-term value for industrial water pump control. Its modular design and compatibility with standard industrial communication protocols like Modbus RTU ensure seamless integration into existing or future Industrial Internet of Things (IIoT) platforms, enabling advanced data analytics and predictive maintenance strategies. The VFD’s ability to support multiple pump control can be expanded by adding compatible control modules or by reconfiguring logic to manage additional pumps as system demands grow. This future-proofing capability, combined with its energy-saving performance and robust build quality, ensures a substantial return on investment by reducing operational costs and minimizing downtime over the VFD's extended lifespan.

Frequently Asked Questions

How do I connect multiple pumps to the INVT GD20-110G-4 VFD?

The GD20-110G-4 supports multi-pump control logic. You can connect multiple pumps to the VFD's output terminals in parallel, ensuring their combined capacity does not exceed the VFD's rating. Configuration involves setting specific parameters within the VFD to manage lead-lag operation, alternation, and protection for each pump.

This VFD’s advanced programming allows for synchronized operation. It can switch between pumps to equalize wear or activate additional pumps based on demand, optimizing energy use and system reliability.

To integrate effectively, ensure proper motor protection and overload settings are configured for each connected pump individually within the VFD's parameter menu.

What are the benefits of independent heat dissipation in the GD20-110G-4 for water pumps?

Independent heat dissipation ensures the VFD's electronics remain cooler. This design separates the fan and heatsink, allowing for more efficient cooling even in hot industrial environments up to 50°C.

This feature significantly enhances the VFD's reliability and longevity. It prevents thermal shutdowns during peak demand, ensuring continuous operation for critical water pump applications.

By maintaining optimal operating temperatures, the VFD minimizes the risk of component failure, reducing maintenance costs and maximizing uptime for your water systems.

Can the INVT GD20-110G-4 be integrated with existing SCADA systems?

Yes, the GD20-110G-4 features an RS485 communication port. This port supports the Modbus RTU protocol, which is widely used in industrial automation for SCADA integration.

You can connect the VFD to your SCADA system via a gateway or directly if your system supports RS485. This enables remote monitoring of operational status and control of pump speed.

Data points like speed, current, voltage, and fault codes can be transmitted to the SCADA system for real-time analysis, trending, and alarm management.

What is the typical power rating and input voltage for the GD20-110G-4?

The INVT GD20-110G-4 has a rated power of 110 kW (kilowatts), which is equivalent to approximately 150 horsepower. This makes it suitable for high-power industrial pump applications.

The VFD operates on a 3-phase input voltage supply. It is designed to accept voltages within the range of 380V to 415V, with a tolerance of ±15%.

Always verify your site's power supply characteristics to ensure compatibility before installation and operation of this specific VFD model.

How does sensorless vector control improve water pump performance?

Sensorless vector control allows the VFD to precisely control motor speed and torque without needing a physical encoder on the motor. This results in smoother operation and better dynamic response.

For water pumps, this means maintaining consistent pressure and flow rates even with fluctuating loads. It optimizes energy consumption by delivering only the required power.

This advanced control method significantly reduces motor vibrations and wear, extending the lifespan of both the pump and the VFD itself.

What are the environmental considerations for installing the GD20-110G-4?

The GD20-110G-4 is rated IP20, meaning it offers protection against solid objects larger than 12.5mm but is not protected against water ingress. Install it in a clean, dry environment.

Ensure the ambient temperature stays between -10°C and 50°C. For operation above 40°C, a derating of the VFD's capacity may be necessary. Good ventilation is crucial.

Avoid areas with excessive dust, humidity (above 90% RH non-condensing), or corrosive gases. Proper installation location maximizes the VFD's performance and lifespan.

What is the output frequency range of the INVT GD20-110G-4?

The INVT GD20-110G-4 provides a flexible output frequency range from 0 Hz up to 300 Hz. This wide range allows for precise speed control of industrial water pumps.

A higher output frequency enables the pump to operate at higher speeds, increasing flow rates when needed. A lower frequency allows for reduced speed to save energy or meet lower demand.

This broad frequency capability ensures the VFD can adapt to various operational requirements, from low-speed circulation to high-speed boosting applications.

How can I perform basic troubleshooting for common faults on this VFD?

When a fault occurs, first identify the error code displayed on the VFD's panel. Consult the user manual for the specific meaning of each code. Common faults include overcurrent, overvoltage, and undervoltage.

For overcurrent faults, check if the motor load is too high or if the motor wiring is correct. Ensure the VFD parameters are set appropriately for the motor size.

For power-related faults like overvoltage or undervoltage, verify the stability of the incoming power supply and ensure it falls within the VFD's operating voltage tolerance.

What is the maximum altitude for operation without derating?

The INVT GD20-110G-4 can operate at altitudes up to 1000 meters above sea level without requiring any derating of its performance. This is a standard operating condition for many industrial sites.

If the VFD is installed at an altitude higher than 1000 meters, its cooling efficiency may be reduced due to thinner air. In such cases, you will need to derate the VFD's capacity.

Always consult the product manual for specific derating curves and guidelines when operating the VFD in high-altitude environments to ensure reliable performance.

Does this VFD offer energy-saving features for water pump control?

Yes, by precisely controlling the motor speed to match the actual demand, the VFD significantly reduces energy consumption compared to fixed-speed pumps. This is especially true for variable flow applications.

The VFD's ability to operate pumps at lower speeds during off-peak hours or reduced demand periods directly translates to lower electricity bills. Its efficient motor control algorithms minimize energy losses.

Furthermore, features like automatic energy-saving modes and optimized V/f curves can be configured to maximize energy savings specific to the water pump's operating profile.