INVT GD20-004G-4 Compact Inverter VFD Drive

The INVT GD20-004G-4 Compact Inverter VFD Drive stands out as a robust and versatile solution for variable speed control in a wide array of industrial applications. This compact unit boasts impressive performance, energy efficiency, and ease of integration, making it a preferred choice for engineers and system integrators seeking reliable and cost-effective motor control. Key advantages include its high torque output, precise speed regulation, and advanced protection features, all housed within a space-saving design. Essential technical parameters showcase its capabilities: it operates on a 3-phase, 200-240V input, delivering up to 0.4kW (1/2 HP) of power with a rated output current of 2.5A. Its compact dimensions and user-friendly interface further enhance its appeal for demanding industrial environments.

Core Features & Market Positioning

The GD20-004G-4 distinguishes itself through its advanced V/f control and sensorless vector control capabilities, enabling superior motor performance and responsiveness. Its market positioning is defined by its balance of sophisticated features and competitive pricing, making it an accessible yet high-performance option for small to medium-sized machinery. INVT's commitment to innovation is evident in the drive's intelligent thermal management system and robust protection circuitry, ensuring operational longevity and reliability. This drive is engineered to meet stringent industry standards, offering a compelling alternative to larger, more complex VFDs where space and cost are critical considerations.

Product Specifications

| Parameter                 | Specification                                |

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

| Model                     | GD20-004G-4                                  |

| Input Voltage             | 3-Phase, 200-240V AC                         |

| Rated Output Power        | 0.4 kW (1/2 HP)                              |

| Rated Output Current      | 2.5 A                                        |

| Frequency Output Range    | 0.00Hz to 400.00Hz                           |

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

| Protection Features       | Overcurrent, Overvoltage, Undervoltage, Overload, Overtemperature, etc. |

| Communication Interface   | Optional RS485 (Modbus)                      |

| Mounting Type             | Wall/Din Rail Mount                          |

| Ambient Temperature       | -10°C to +40°C                               |

Key Application Scenarios

The INVT GD20-004G-4 finds extensive use in applications demanding precise motor speed and torque control. It is particularly well-suited for conveyors, fans, pumps, packaging machinery, and textile equipment. Its compact size makes it ideal for retrofitting into existing control panels or for integration into machinery where space is at a premium. For pump applications, its built-in PID controller allows for automatic pressure or flow regulation, optimizing system efficiency and reducing water hammer effects. In fan applications, it enables precise airflow control, leading to significant energy savings compared to traditional methods.

Practical System Integration Guidance

Integrating the GD20-004G-4 into an industrial system is streamlined due to its intuitive setup and connection terminals. For wiring, ensure all power connections are made according to the internal wiring diagram provided in the manual, paying close attention to grounding for safety and noise reduction. The drive supports both digital and analog I/O for control flexibility. Basic commissioning involves setting motor parameters, such as rated voltage, current, frequency, and number of poles, which can be accessed through the drive's keypad or via communication. For advanced control, configuring sensorless vector parameters can significantly enhance dynamic performance, offering tighter speed regulation under varying load conditions. The optional RS485 communication port allows for seamless integration into SCADA systems or PLCs using the Modbus protocol, enabling remote monitoring and control.

Operation and Risk Mitigation

Safe operation of the INVT GD20-004G-4 is paramount and hinges on adherence to installation guidelines and proper parameterization. Before powering up, always double-check all electrical connections to prevent short circuits or improper grounding. During operation, monitor the drive's status via the LED display or an external HMI. Common troubleshooting scenarios often involve overload faults (OL), which can indicate an undersized drive for the application, mechanical issues in the driven load, or incorrect motor parameter settings. Overtemperature faults (OH) suggest inadequate ventilation or operation beyond the drive's specified ambient temperature range. Always consult the user manual for specific error codes and their corresponding mitigation strategies before attempting any adjustments. Ensure that the drive is properly protected from environmental factors such as dust, moisture, and excessive vibration.

Scalability & Long-Term Value

The INVT GD20-004G-4 offers a valuable long-term solution through its robust design and compatibility. While this specific model is a compact unit, INVT's broader GD20 series provides scalable options for higher power requirements, ensuring that users can maintain consistency in control philosophy and programming across different machinery. Its potential for integration with Industrial Internet of Things (IIoT) platforms via the optional communication modules adds significant long-term value, enabling predictive maintenance and advanced data analytics. The drive's firmware can also be updated, allowing it to benefit from future performance enhancements and features, thus extending its useful life and maintaining its relevance in evolving industrial landscapes.

Frequently Asked Questions (FAQs)

1. What is the primary advantage of the INVT GD20-004G-4 VFD?

The main advantage is its compact design combined with robust features for precise motor control.

It offers excellent energy efficiency and a wide operating temperature range for industrial use.

This drive provides a cost-effective solution for variable speed applications without compromising performance.

2. Can this VFD be used for single-phase motor control?

No, the GD20-004G-4 is designed for 3-phase motor operation.

It requires a 3-phase input voltage of 200-240V AC to function correctly.

Users must ensure their motor is a 3-phase type and their power supply matches the drive's input specifications.

3. How do I perform basic parameter settings on the GD20-004G-4?

Access parameters via the keypad using the menu navigation buttons.

Input essential motor data like voltage, current, frequency, and poles for optimal performance.

Refer to the user manual for a detailed list of parameters and their functions.

4. What are the typical applications for the INVT GD20-004G-4?

It is ideal for pumps, fans, conveyors, and small machine tools.

Its compact size suits integration into tight control cabinets and OEM machinery.

Common uses include HVAC systems, packaging lines, and material handling equipment.

5. How is the GD20-004G-4 protected against electrical faults?

It features comprehensive built-in protection against overcurrent and overload.

The drive also offers safeguards for overvoltage, undervoltage, and motor overheating.

These safety features help prevent damage to the drive and the connected motor.

6. What communication options are available for the GD20-004G-4?

An optional RS485 communication card is available for Modbus connectivity.

This allows for integration into supervisory control systems like SCADA or PLCs.

Remote monitoring and control of the drive's parameters and status are possible.

7. What is the power rating of the GD20-004G-4?

The drive has a rated output power of 0.4 kW, equivalent to approximately 1/2 horsepower.

Its rated output current is 2.5 Amps.

This rating makes it suitable for smaller industrial motors and machinery.

8. Can I use this VFD in an environment with high ambient temperatures?

The drive's operating ambient temperature range is -10°C to +40°C.

Operation outside this range may require derating or enhanced cooling solutions.

Ensure adequate ventilation around the drive to maintain optimal operating temperatures.

9. What is sensorless vector control, and does the GD20-004G-4 support it?

Sensorless vector control provides precise speed and torque regulation without motor feedback sensors.

Yes, the GD20-004G-4 supports sensorless vector control for improved dynamic response.

This control method is beneficial for applications requiring accurate speed holding under load changes.

10. How does the GD20-004G-4 contribute to energy savings?

By precisely controlling motor speed, it reduces energy consumption compared to fixed-speed operation.

Energy savings are most significant in applications with variable load demands, like pumps and fans.

The drive's efficient design minimizes internal power losses.