INVT GD350-5R5G-4-E Goodrive350 Enhanced Inverter 5.5kW Power Optimized Power Stage

The INVT GD350-5R5G-4-E Goodrive350 Enhanced Inverter, a 5.5kW variable frequency drive, offers superior power optimization and advanced control for demanding industrial applications. Its enhanced power stage design ensures high efficiency and reliability, making it a premier choice for motor control across various sectors. With a robust feature set, this inverter is engineered for performance, providing precise speed regulation and torque control essential for optimizing production processes and reducing energy consumption.

Product Specifications

| Parameter             | Specification                                     |

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

| Model Number          | GD350-5R5G-4-E                                    |

| Rated Power           | 5.5 kW                                            |

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

| Output Voltage        | 3-Phase, 0-380V (or to input voltage)             |

| Frequency Range       | 0-300 Hz                                          |

| Control Method        | Vector Control (Sensorless & Closed-loop), V/f Control |

| Overload Capacity     | 150% for 60s, 180% for 10s                        |

| Protection Features   | Over-voltage, Under-voltage, Over-current, Overload, Overheat, etc. |

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

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

Core Features & Market Positioning

The INVT GD350-5R5G-4-E stands out in the competitive industrial inverter market due to its advanced control algorithms and robust hardware design. Its enhanced power stage, featuring optimized switching strategies and high-quality components, delivers exceptional energy efficiency, directly translating to reduced operational costs for users. This drive is positioned as a high-performance solution for applications requiring precise motor control, dynamic response, and enhanced reliability. The integration of sensorless vector control provides a compelling alternative to closed-loop systems in many scenarios, simplifying installation and reducing system complexity. Its market differentiation is further cemented by its competitive pricing for the level of technology and performance it offers.

Key Application Scenarios

This 5.5kW inverter is ideally suited for a wide array of industrial applications where precise motor speed and torque control are paramount. It excels in pump and fan control, HVAC systems, and material handling equipment, optimizing energy usage and operational efficiency. In manufacturing environments, it finds extensive use in conveyor systems, machine tools, and packaging machinery, ensuring consistent product quality and throughput. The GD350-5R5G-4-E is also a strong candidate for applications in the textile industry, plastics processing, and water treatment plants, where its robust performance and adaptability to varying load conditions are highly valued.

Practical System Integration Guidance

Integrating the INVT GD350-5R5G-4-E into existing industrial control systems is streamlined due to its flexible communication interfaces and straightforward wiring. For a typical setup, ensure a stable 3-phase power supply is connected to the L1, L2, and L3 terminals, with the motor phases connected to T1, T2, and T3. Control signals for start/stop and speed reference can be managed via digital or analog inputs, configurable through the drive's parameter settings. For networked applications, integrating the optional communication modules like RS485 allows for seamless integration with PLCs and SCADA systems, enabling remote monitoring and control. Proper grounding and shielding of motor and control cables are essential for noise reduction and reliable operation.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD350-5R5G-4-E requires adherence to installation guidelines and understanding of its protective functions. Always ensure the inverter is powered off and discharged before performing any wiring or maintenance. The drive incorporates comprehensive protection mechanisms, including over-current, over-voltage, and overheat alarms. Common error codes, such as "OL" for overload or "UV" for under-voltage, indicate specific issues that require immediate attention and diagnosis according to the user manual. Regularly check ventilation to prevent overheating, and ensure the ambient temperature remains within the specified operating range to maintain optimal performance and longevity.

Scalability & Long-Term Value

The INVT GD350-5R5G-4-E is designed with scalability and long-term value in mind, offering robust performance that supports industrial growth. Its compatibility with various motor types, including asynchronous and synchronous motors, provides flexibility for future upgrades or equipment changes. The drive's modular design and available communication protocols facilitate integration with emerging Industrial Internet of Things (IIoT) platforms, enabling advanced data analytics and predictive maintenance strategies. This foresight in design ensures that the GD350-5R5G-4-E remains a valuable asset, supporting evolving operational demands and contributing to the overall digital transformation of industrial processes.

Frequently Asked Questions

What are the primary benefits of the INVT GD350-5R5G-4-E?

This inverter offers significant energy savings through its high-efficiency power stage. It provides precise motor control for enhanced process optimization and reduced wear on machinery. The robust design ensures superior reliability and a longer operational lifespan.

The GD350-5R5G-4-E excels in applications requiring dynamic response and accurate speed regulation. Its advanced control algorithms minimize torque ripple and improve overall system performance. This leads to increased productivity and consistent product quality.

Key advantages include its versatility across various motor types and its ease of integration into existing automation systems. The comprehensive protection features also contribute to operational safety and reduced downtime.

How do I perform basic parameter setup for the INVT GD350-5R5G-4-E?

Access the parameter menu by pressing the "PRGM" button. Navigate through the parameter groups using the arrow keys. To change a parameter, select it, press "ENTER," modify the value, and press "ENTER" again to save.

For motor setup, parameters like P00.01 (motor rated power) and P00.02 (motor rated frequency) are crucial. Also, set P00.03 (motor rated speed) and P00.04 (motor rated voltage) accurately for optimal performance.

After initial setup, always perform an auto-tuning function (often found in parameter group P01) to calibrate the inverter to the specific motor characteristics. This ensures optimal efficiency and control.

What are common applications for a 5.5kW industrial inverter like the GD350-5R5G-4-E?

This inverter is ideal for driving pumps and fans in HVAC systems, offering variable speed control to match demand. It is widely used in conveyor systems for material handling in manufacturing and logistics.

In machine tool applications, it provides precise speed and torque control for cutting and grinding operations. Packaging machinery also benefits from the accurate motor control offered by this drive.

Other suitable applications include extruders, mixers, and centrifuges in the plastics, food, and chemical industries. Its versatility makes it a go-to solution for many variable-speed motor control needs.

What safety precautions should be taken when installing the GD350-5R5G-4-E?

Always ensure the main power supply is disconnected and the internal DC bus capacitors are discharged before any wiring. Refer to the user manual for specific discharge times.

Proper grounding of the inverter and motor is critical to prevent electrical shock and interference. Use appropriately sized cables and ensure all connections are secure and insulated.

Operate the inverter within its specified environmental conditions, avoiding excessive dust, moisture, and extreme temperatures. Ensure adequate ventilation to prevent overheating.

How can I troubleshoot overload errors (OL) on the INVT GD350-5R5G-4-E?

An "OL" error indicates that the motor is drawing more current than the inverter is rated for or has been set to tolerate. Check if the connected motor's load is too high or if the motor itself is undersized for the application.

Verify that the motor's rated current is correctly programmed into the inverter parameters (e.g., P00.05). Also, inspect the motor and driven machinery for any mechanical issues like binding or excessive friction that could cause increased load.

Consider adjusting the overload protection parameters if the application genuinely requires higher momentary currents, but ensure this is done within safe limits. If the problem persists, the motor may be faulty or require a larger inverter.

What is the role of auto-tuning in the INVT GD350-5R5G-4-E?

Auto-tuning calibrates the inverter's control parameters to match the specific electrical characteristics of the connected motor. This process is vital for achieving optimal performance, especially with sensorless vector control.

During auto-tuning, the inverter measures motor parameters such as resistance, inductance, and inertia. This data is used to fine-tune the motor model within the inverter's control algorithm.

Executing auto-tuning ensures efficient operation, precise speed and torque control, and a wider operating speed range. It minimizes motor vibration and energy consumption.

Can the GD350-5R5G-4-E be controlled remotely using a PLC?

Yes, the GD350-5R5G-4-E supports remote control via a PLC using its communication interfaces. The standard RS485 port, often configured with Modbus RTU protocol, is commonly used for this purpose.

By utilizing the RS485 interface, a PLC can send commands to start/stop the motor, adjust speed setpoints, and monitor the inverter's status and fault codes. This enables integration into automated manufacturing systems.

For more advanced integration, optional communication cards such as CANopen or other industrial Ethernet protocols may be available, further expanding its connectivity options with various PLC brands and industrial networks.

What are the advantages of sensorless vector control on this inverter?

Sensorless vector control allows for precise motor speed and torque regulation without the need for a physical speed encoder mounted on the motor. This significantly reduces installation complexity and cost.

It provides excellent dynamic performance, including quick response to load changes and accurate speed holding, even at low speeds. This capability is crucial for many demanding industrial applications.

The absence of an encoder also means one less component that could fail, leading to increased system reliability and reduced maintenance requirements compared to traditional closed-loop systems.

How does the enhanced power stage benefit the inverter's performance?

The enhanced power stage utilizes advanced semiconductor technology and optimized circuit design for higher efficiency and lower heat generation. This translates to reduced energy loss during operation.

It contributes to a more robust and reliable performance, with improved ability to handle transient load conditions and overloads. This minimizes the risk of component failure.

The optimized power stage also allows for a more compact design and quieter operation, making the inverter easier to integrate into various machinery and environments.

What is the typical lifespan of the INVT GD350-5R5G-4-E under normal operating conditions?

The lifespan is significantly influenced by operating temperature, load cycles, and maintenance practices. Typically, industrial inverters like this can last 10-15 years or more with proper care.

Key components such as cooling fans and electrolytic capacitors have a finite lifespan and may require replacement during the inverter's operational life. Regular inspection and preventive maintenance are crucial.

Ensuring the inverter operates within its rated parameters, with adequate ventilation and protection from environmental contaminants, will maximize its service life and reliability.