INVT GD20-2R2G-2 Low Power Three-Phase Inverter VFD

The INVT GD20-2R2G-2 Low Power Three-Phase Inverter VFD stands as a robust solution for precise motor control in a variety of industrial applications. This Variable Frequency Drive (VFD) offers advanced features designed to enhance efficiency, improve performance, and reduce operational costs. Key advantages include its compact design, high reliability, and superior motor performance capabilities. With a power rating of 2.2kW (3HP) and supporting a three-phase input and output, the GD20-2R2G-2 is engineered for demanding environments. Its core technical parameters highlight a voltage range of 380V-440V, an output frequency of 0-3000Hz, and advanced control algorithms ensuring smooth operation and accurate speed regulation.

Product Specifications

| Parameter             | Specification                                     |

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

| Model                 | INVT GD20-2R2G-2                                  |

| Rated Power           | 2.2 kW (3 HP)                                     |

| Input Voltage         | 3 Phase, 380V-440V                                |

| Output Voltage        | 3 Phase, 380V-440V                                |

| Output Frequency      | 0-3000 Hz                                         |

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

| Protection Level      | IP20                                              |

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

| Installation Method   | Wall mounting or Din Rail installation            |

| Communication Interface | Standard RS485 (Optional)                         |

Core Features & Market Positioning

The INVT GD20-2R2G-2 distinguishes itself in the low-power VFD market through its potent sensorless vector control algorithm, which delivers exceptional torque accuracy and dynamic response even without encoder feedback. This technology significantly broadens its applicability to scenarios previously requiring more complex and expensive closed-loop systems. Its robust design, featuring advanced thermal management and comprehensive protection functions, ensures longevity and reliability in harsh industrial settings, positioning it as a dependable choice for critical operations. Furthermore, the inverter's inherent energy-saving capabilities, achieved through precise speed and torque regulation, contribute to a lower total cost of ownership, a critical factor for cost-conscious industrial operations.

Key Application Scenarios

This three-phase inverter is ideally suited for a wide spectrum of industrial applications where precise motor speed and torque control are paramount. Common use cases include driving centrifugal pumps and fans in HVAC systems, where variable flow and pressure are managed efficiently. It is also extensively utilized in textile machinery, packaging equipment, and conveyor systems, providing smooth acceleration and deceleration to protect materials and improve process consistency. The GD20-2R2G-2's versatility extends to machine tools, injection molding machines, and other automation equipment requiring dynamic performance and reliable operation. Its ability to handle varying loads makes it a go-to solution for optimising energy consumption across diverse manufacturing environments.

Practical System Integration Guidance

Integrating the INVT GD20-2R2G-2 into existing industrial systems is streamlined due to its user-friendly interface and flexible configuration options. The inverter supports standard mounting methods, including wall and DIN rail installation, simplifying physical setup. Wiring follows conventional three-phase motor connection practices, with clear terminal designations for power input, motor output, and control signals. For commissioning, users can leverage the intuitive keypad or optional communication interfaces for parameter setting. Basic programming involves configuring motor parameters, setting desired speed references (e.g., via analog input, digital inputs, or serial communication), and defining acceleration/deceleration ramps. Advanced configuration can optimize control loops for specific load characteristics, enhancing performance and efficiency.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD20-2R2G-2 hinges on adherence to installation guidelines and understanding its fault protection mechanisms. Always ensure the drive is installed in a well-ventilated area, away from excessive dust, moisture, and extreme temperatures, to prevent overheating and component damage. Proper grounding of the motor and the VFD is crucial for electrical safety and electromagnetic compatibility. The GD20-2R2G-2 is equipped with numerous protection functions, including overcurrent, overvoltage, undervoltage, motor overload, and short circuit protection, which automatically shut down the drive to prevent damage. Common error codes, such as E.OC (Overcurrent) or E.OL (Motor Overload), indicate specific fault conditions that can often be resolved by adjusting acceleration ramps, motor parameters, or ensuring the load is within the drive's capacity.

Scalability & Long-Term Value

The INVT GD20-2R2G-2 offers significant long-term value through its scalability and compatibility with evolving industrial automation trends. Its integrated RS485 communication interface allows for seamless integration into supervisory control and data acquisition (SCADA) systems and programmable logic controllers (PLCs), paving the way for advanced process monitoring and control. This connectivity is fundamental for implementing Industry 4.0 initiatives and the Industrial Internet of Things (IIoT), enabling remote diagnostics, predictive maintenance, and enhanced operational visibility. While the GD20-2R2G-2 is designed for robust performance, its compatibility with INVT's broader product ecosystem means that as application requirements grow, transitioning to higher-capacity drives or specialized solutions from the same manufacturer is a straightforward process, ensuring continuity and familiarity with the control platform.

Frequently Asked Questions (FAQs)

What are the primary advantages of using the INVT GD20-2R2G-2 VFD?

This inverter offers excellent motor control performance with its sensorless vector control. It provides significant energy savings by precisely matching motor speed to load requirements. The drive is built for reliability in industrial environments and features comprehensive protection functions.

The compact design facilitates easier installation in space-constrained applications. It supports a wide output frequency range, enabling precise speed adjustments for diverse machinery. Its advanced algorithms ensure smooth operation, reducing mechanical stress on driven equipment.

Overall, the GD20-2R2G-2 is a cost-effective solution that enhances productivity and reduces operational expenditures. Its ease of use and robust features make it a valuable asset for modern industrial automation.

How does the sensorless vector control feature benefit my application?

Sensorless vector control enables high-accuracy torque and speed regulation without the need for an encoder on the motor. This simplifies system setup and reduces overall cost by eliminating an additional component. The drive can deliver precise performance even at low speeds or during rapid load changes.

It allows for dynamic response characteristics similar to closed-loop systems. This is crucial for applications like conveyors or tension control where precise motor behavior is vital. You gain improved process control and product quality.

The technology enhances motor efficiency, leading to reduced power consumption. This feature makes the GD20-2R2G-2 suitable for demanding variable torque applications like pumps and fans.

What types of industrial equipment are best suited for the INVT GD20-2R2G-2?

This VFD is ideal for variable torque applications such as centrifugal pumps and fans. It optimizes energy usage in HVAC systems and water management. The drive ensures efficient operation and precise flow control.

It is also well-suited for constant torque applications like conveyors, elevators, and machine tools. The precise speed and torque control maintain consistent process speeds and improve machinery performance.

Other common applications include textile machinery, packaging equipment, and printing presses. Its versatility supports a wide range of automation needs in various manufacturing sectors.

Can the INVT GD20-2R2G-2 be easily integrated into existing control systems?

Yes, the inverter features an RS485 communication port for integration with PLCs and SCADA systems. This allows for remote monitoring and control of the drive's operation. It supports standard industrial communication protocols.

Parameter setting can be performed via the intuitive keypad or through the communication interface. This flexibility simplifies commissioning and ongoing adjustments. Wiring connections are standardized for straightforward installation.

The drive's compatibility with common industrial power and control signals ensures a smooth integration process into existing electrical infrastructure. This reduces engineering effort and integration time.

What are the typical troubleshooting steps for common faults like E.OC or E.OL?

For an E.OC (Overcurrent) fault, first check if the motor is overloaded or if the acceleration time is too short. Adjusting the acceleration ramp to a longer duration can often resolve this. Verify motor windings for short circuits.

An E.OL (Motor Overload) fault typically indicates that the motor is drawing more current than its rated capacity for an extended period. Ensure the motor nameplate data is correctly entered into the VFD's parameters. Reduce the load on the motor or increase the VFD's overload capacity setting if appropriate.

Always consult the INVT GD20 manual for specific fault code meanings and recommended actions. Ensure proper ventilation to prevent overheating, which can also trigger protective shutdowns. Verify correct motor wiring and cable connections.

What technical parameters are crucial for selecting the correct INVT GD20-2R2G-2 for my application?

The rated power (2.2kW/3HP) and input/output voltage (380-440V) must match your power supply and motor specifications. Incorrect voltage matching can damage the drive or motor. This ensures compatibility with your existing electrical infrastructure.

The output frequency range (0-3000Hz) needs to accommodate the desired speed control for your application. Consider the maximum and minimum operating speeds of your motor and driven equipment. This range allows for significant speed variation.

Understand the motor's nominal current and power factor to ensure the VFD can provide adequate torque, especially for sensorless vector control. Also, consider the ambient operating conditions and required protection level (IP rating).

How can the INVT GD20-2R2G-2 contribute to energy efficiency in my operations?

The VFD precisely controls motor speed, allowing it to run only as fast as necessary for the load. This reduces wasted energy compared to running motors at full speed and using mechanical means to control output. Significant power savings can be achieved in variable torque applications like pumps and fans.

By optimizing motor performance and torque delivery, the drive minimizes energy consumption. This intelligent speed regulation directly translates to lower electricity bills and a reduced carbon footprint for your facility.

The drive's advanced control algorithms and features are designed to maximize operational efficiency. This leads to a lower total cost of ownership over the equipment's lifespan.

What are the safety considerations when installing and operating the GD20-2R2G-2?

Ensure proper electrical grounding of the inverter and motor to prevent shock hazards and ensure electromagnetic compatibility. Follow all local electrical codes and safety regulations during installation. Never work on live terminals; always disconnect power before making connections.

Install the VFD in a clean, dry, and well-ventilated location to prevent overheating and component failure. Avoid exposing the drive to flammable gases or corrosive substances. Ensure adequate clearance around the unit for heat dissipation.

Familiarize yourself with the drive's protection functions and error codes. Understand that the drive's output terminals are live when powered, even if the motor is not running. Implement lockout/tagout procedures during maintenance.

What is the role of the optional RS485 communication interface?

The RS485 interface enables the inverter to communicate with other devices like PLCs, HMIs, and SCADA systems. This is essential for building integrated automation and monitoring solutions. It allows for remote control and data acquisition.

Through RS485, you can remotely adjust speed setpoints, monitor operational status, and receive alarm notifications. This facilitates efficient process management and troubleshooting from a central control room.

Implementing serial communication with the GD20-2R2G-2 is a key step towards building smart factory environments and IIoT solutions. It allows for data logging and analysis to optimize production processes.

How does the GD20-2R2G-2 compare to other low-power VFDs on the market?

The INVT GD20-2R2G-2 offers a competitive edge with its advanced sensorless vector control, providing superior performance in its class. Its robust build quality and comprehensive protection features ensure high reliability, often exceeding that of comparable drives.

Its user-friendly interface and straightforward parameter configuration simplify setup and operation, reducing commissioning time and engineering costs. The drive's energy-saving capabilities also contribute to a lower total cost of ownership.

Compared to other basic V/f control drives, the GD20-2R2G-2 provides more precise motor control and dynamic response, making it suitable for a wider range of demanding applications. Its inclusion of standard communication options further enhances its value proposition.