INVT GD350A-1000G-4 High Power Variable Frequency Drive

The INVT GD350A-1000G-4 High Power Variable Frequency Drive represents a significant advancement in industrial motor control, engineered for demanding applications requiring robust performance, superior energy efficiency, and exceptional reliability. This powerful drive boasts a 1000kW rated power, a 400V voltage class, and is specifically designed to deliver precise speed and torque control across a wide spectrum of industrial machinery. Its advanced technology platform emphasizes ease of integration, operational flexibility, and long-term value, making it a premier choice for modern industrial facilities.

Product Specifications

| Parameter             | Specification                                |

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

| Model                 | GD350A-1000G-4                               |

| Rated Power           | 1000 kW                                      |

| Input Voltage         | 3-Phase, 380V-460V AC                        |

| Output Voltage        | 0-380V AC (or 0-460V AC)                     |

| Frequency Range       | 0-600 Hz                                     |

| Control Method        | Vector Control (Sensorless & Closed-loop)    |

| Protection Features   | Overcurrent, Overvoltage, Undervoltage, Overheat, Phase Loss, etc. |

| Communication Options | RS485, CANopen, Profibus (optional)          |

| Dimensions (approx.)  | Varies by enclosure; consult datasheet       |

| Mounting Type         | Cabinet Installation                         |

Core Features & Market Positioning

The INVT GD350A-1000G-4 distinguishes itself through its sophisticated vector control algorithms, enabling precise motor performance even under fluctuating load conditions. Its ability to operate in both sensorless and closed-loop vector modes provides flexibility for various motor types and application requirements. The drive's high-efficiency design contributes to significant energy savings, a critical factor in today's cost-conscious industrial landscape. Furthermore, its robust construction and comprehensive protection mechanisms ensure operational continuity and longevity, positioning it as a reliable solution for heavy-duty industrial environments where downtime is not an option. The inclusion of advanced communication protocols facilitates seamless integration into sophisticated automation systems and IIoT platforms.

Key Application Scenarios

This high-power VFD is ideally suited for applications demanding substantial motor power and precise control. It excels in driving large centrifugal pumps and fans in water treatment plants, HVAC systems, and mine ventilation, where flow rate or air volume needs precise adjustment for optimal efficiency. In the petrochemical industry, it is employed for large compressors and extruders, managing process parameters with accuracy. The steel and mining sectors utilize the GD350A-1000G-4 for heavy-duty conveyors, crushers, and rolling mills, benefiting from its high starting torque and ability to withstand harsh operating conditions. Its versatility also extends to large-scale material handling systems and industrial automation lines requiring robust motor management.

Practical System Integration Guidance

Integrating the INVT GD350A-1000G-4 into existing industrial systems requires careful consideration of power and control wiring. Ensure the main power input complies with the specified voltage and frequency range, with appropriate circuit protection devices such as disconnect switches and fuses installed upstream. For motor connections, use shielded cables of adequate gauge to minimize electromagnetic interference, especially in high-power applications. The drive's terminals allow for flexible digital and analog I/O configuration, enabling integration with PLCs, sensors, and control panels for remote monitoring and operation. Commissioning involves configuring motor parameters, setting speed and acceleration/deceleration profiles, and defining protective functions through the drive's intuitive interface or via communication protocols. Default parameters should be reviewed and adjusted to match the specific motor and application characteristics for optimal performance and safety.

Operation and Risk Mitigation

Safe operation of the INVT GD350A-1000G-4 mandates adherence to electrical safety standards and the manufacturer's guidelines. Ensure proper grounding of the drive and motor to prevent electrical hazards. Before performing any maintenance or wiring adjustments, always disconnect the main power supply and verify that the drive's internal capacitors have discharged. Common operational issues can include motor overload, communication errors, or parameter misconfigurations. The drive features extensive self-diagnostic capabilities, displaying specific fault codes to aid in troubleshooting. For instance, an "Overcurrent" fault (often code E.OC) indicates excessive current draw, which might stem from a motor issue, excessive load, or incorrect acceleration settings. An "Overheat" fault (E.OH) suggests inadequate cooling or an ambient temperature exceeding operating limits. Referencing the product manual for a comprehensive list of fault codes and their recommended remedies is crucial for effective risk mitigation and prompt resolution of operational challenges.

Scalability & Long-Term Value

The INVT GD350A-1000G-4 is designed with scalability and long-term value in mind. Its modular design and optional communication boards allow for easy upgrades and integration with evolving automation architectures, including advanced Industrial Internet of Things (IIoT) platforms and supervisory control and data acquisition (SCADA) systems. Compatibility with standard industrial communication protocols ensures interoperability with a wide range of control systems and field devices, simplifying network expansion. The drive's robust build quality and energy-efficient operation contribute to a lower total cost of ownership by reducing maintenance needs and energy consumption over its operational lifespan. Furthermore, INVT's commitment to technological advancement ensures that the GD350A series remains a relevant and high-performing solution for years to come, offering a secure investment for industrial operations.

Frequently Asked Questions

What are the primary benefits of using the INVT GD350A-1000G-4?

This VFD offers significant energy savings through precise motor speed control. It enhances operational efficiency by providing accurate torque and speed regulation for demanding industrial loads. The drive also boasts robust protection features to ensure equipment longevity and minimize downtime.

What are the typical applications for this high-power VFD?

It is ideal for large pumps, fans, compressors, and heavy-duty machinery in sectors like water treatment, petrochemicals, and mining. Applications include driving large industrial fans, centrifugal pumps, and complex material handling systems. Its high power rating makes it suitable for crushers, extruders, and large conveyor systems.

How does the GD350A-1000G-4 handle motor control and protection?

The drive utilizes advanced vector control for precise motor performance under varying loads. It incorporates comprehensive protection against overcurrent, overvoltage, undervoltage, and overheating. These features safeguard the motor and drive, ensuring reliable operation and preventing damage.

What input voltage range does the INVT GD350A-1000G-4 support?

This model operates on a 3-phase AC input voltage typically ranging from 380V to 460V. It is designed to be compatible with standard industrial power grids within this voltage band. Always verify the local power supply specifications before installation.

Can this VFD be integrated with existing automation systems?

Yes, the GD350A-1000G-4 supports various communication protocols like RS485, CANopen, and optional Profibus. This allows for seamless integration with PLCs, SCADA systems, and other industrial automation networks. It facilitates remote monitoring and control of motor operations.

What is the rated power of the INVT GD350A-1000G-4?

The rated power for this specific model is 1000 kW. This high power capacity makes it suitable for very large industrial motors and heavy-duty applications. It is designed to manage substantial electrical loads efficiently.

What types of motor control methods does it offer?

It supports both sensorless and closed-loop vector control methods. Sensorless vector control provides excellent performance without motor feedback, while closed-loop offers enhanced precision for critical applications. This flexibility caters to diverse motor types and operational needs.

How can I ensure safe installation and operation of this drive?

Follow all electrical safety standards and manufacturer guidelines during installation. Ensure proper grounding and use appropriate protective devices. Always disconnect power before performing any maintenance.

What should I do if the drive displays an "Overcurrent" fault code?

An overcurrent fault (E.OC) typically indicates excessive current draw. Check for motor issues, mechanical overload, or excessively fast acceleration settings. Review the drive's parameter settings and motor specifications.

Does INVT offer support or documentation for the GD350A-1000G-4?

Yes, INVT provides comprehensive technical documentation, including user manuals and application notes for the GD350A series. Their support network can assist with installation, commissioning, and troubleshooting queries. Detailed manuals outline all fault codes and their resolutions.