INVT GD350-1R5G-4 Goodrive350 Intelligent High Performance Inverter 1.5kW Closed Loop 400V

The INVT GD350-1R5G-4 Goodrive350 Intelligent High Performance Inverter 1.5kW Closed Loop 400V stands as a robust solution for demanding industrial automation tasks, offering exceptional precision and control. This advanced variable frequency drive (VFD) integrates a 1.5kW power capacity with a sophisticated closed-loop control system, operating at 400V, ensuring optimal performance in critical applications. Its core advantages lie in its high precision, superior motor control capabilities, and intelligent features designed to enhance efficiency and reliability. Key technical parameters include a rated power of 1.5kW, a rated voltage of 400V, and support for closed-loop vector control, making it ideal for applications requiring precise speed and torque regulation.

Product Specifications

| Feature               | Specification                                |

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

| Model                 | GD350-1R5G-4                                 |

| Rated Power           | 1.5kW (2HP)                                  |

| Rated Voltage         | 400V                                         |

| Control Mode          | Closed-Loop Vector Control                   |

| Output Frequency      | 0-3000 Hz                                    |

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

| Communication Ports   | RS485, Optional Fieldbus Modules             |

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

| Dimensions (H x W x D) | 250mm x 150mm x 170mm (approximate)          |

Core Features & Market Positioning

The INVT GD350-1R5G-4 distinguishes itself through its advanced closed-loop vector control algorithm, which provides precise and dynamic speed and torque response, even under fluctuating load conditions. This level of control is paramount for applications demanding high accuracy, such as in CNC machinery, precision winding, and automated production lines. Its market positioning emphasizes intelligent performance, energy efficiency, and robust reliability, making it a preferred choice for industries seeking to optimize operational costs and enhance product quality. The inverter's integrated intelligent functions, including advanced auto-tuning and diagnostic capabilities, further solidify its competitive edge by simplifying setup and proactive maintenance.

Key Application Scenarios

This high-performance inverter finds extensive application in sectors requiring meticulous motion control. It excels in driving machine tools for precise positioning and speed maintenance, vital for achieving intricate machining operations. In the textile industry, it ensures consistent fabric tension during winding and unwinding processes. The GD350-1R5G-4 is also a strong candidate for automated material handling systems, robotics, and any industrial process where exact speed and torque control are critical for productivity and product integrity. Its ability to operate reliably in demanding industrial environments makes it suitable for general-purpose machine manufacturing and specialized automation solutions.

Practical System Integration Guidance

Integrating the INVT GD350-1R5G-4 into existing systems is streamlined by its user-friendly interface and comprehensive connectivity options. Wiring the inverter requires careful attention to power input (L1, L2, L3 at 400V), motor output (U, V, W), and grounding for safety and optimal performance. For closed-loop operation, connecting the motor encoder feedback to the appropriate terminals on the inverter is essential. Commissioning involves performing auto-tuning of the motor parameters, which can be initiated through the keypad or by sending commands via the RS485 communication port. Programming examples for basic speed control or position control sequences can be developed using the inverter’s parameter settings, often requiring adjustment of P-gain and I-gain for optimal closed-loop stability.

Operation and Risk Mitigation

Safe operation of the INVT GD350-1R5G-4 mandates adherence to electrical safety standards and proper installation procedures. Before powering on, verify all connections are secure and that the supply voltage matches the inverter's rating. Overload and over-temperature protection features are intrinsically designed to mitigate risks, but ensuring adequate ventilation around the unit is crucial for effective thermal management. Common fault codes, such as "Over-current" (OC) or "Over-voltage" (OV), often indicate issues with motor load, acceleration/deceleration times, or power supply stability. Referencing the product manual for specific fault code interpretation and troubleshooting steps is paramount for minimizing downtime and preventing potential equipment damage.

Scalability & Long-Term Value

The INVT GD350-1R5G-4 offers significant scalability and long-term value through its flexible communication options and compatibility with various industrial automation platforms. The availability of optional fieldbus modules (e.g., Profibus, DeviceNet) allows for seamless integration into advanced Distributed Control Systems (DCS) or Programmable Logic Controllers (PLC) networks, supporting the trend towards Industrial Internet of Things (IIoT) and smart manufacturing. This facilitates remote monitoring, diagnostics, and control, enhancing operational efficiency and enabling predictive maintenance strategies. Its robust design and INVT's commitment to firmware updates ensure that the inverter remains a relevant and valuable asset throughout its operational lifespan.

FAQs

What is the primary advantage of the GD350-1R5G-4's closed-loop control?

Closed-loop control ensures superior speed and torque accuracy. It actively monitors motor output via feedback. This allows for precise adjustments under varying load conditions.

This dynamic response is critical for demanding applications. It significantly improves process repeatability. This leads to higher product quality and reduced waste.

The system maintains setpoints even with disturbances. This capability is essential for applications like CNC machines. It ensures consistent performance and reliability.

How do I wire the motor to the INVT GD350-1R5G-4 400V inverter?

Connect the motor power leads (U, V, W) to the corresponding terminals on the inverter. Ensure secure connections and proper cable insulation. Use shielded motor cables to minimize electromagnetic interference.

For closed-loop operation, connect the motor encoder feedback signals. These typically include A, B, and Z (index) phases. Consult the manual for specific encoder terminal assignments.

Always ensure the inverter is powered off and LOTO procedures are followed. Verify the motor is correctly rated for the inverter's output voltage and current.

What are common applications for the INVT GD350-1R5G-4?

This inverter is ideal for machine tools requiring precise motion. Think CNC lathes, milling machines, and grinding equipment. It ensures accurate positioning and speed.

It is also well-suited for textile machinery, such as winding and spinning frames. Applications needing precise tension control benefit greatly. Automated production lines also utilize its capabilities.

Other uses include material handling, conveyors, and robotics. Any scenario demanding accurate speed or torque is a prime candidate. Its versatility makes it a strong choice.

How do I perform auto-tuning on the GD350-1R5G-4 inverter?

Navigate to the auto-tuning menu using the inverter's keypad. Select the appropriate auto-tuning mode for your motor (e.g., static or dynamic). Ensure the motor is connected and can rotate freely.

Initiate the auto-tuning process by pressing the start button. The inverter will then send specific signals to the motor to measure its electrical parameters. This typically takes a few minutes.

Once complete, save the learned parameters. This optimizes the inverter's performance for the specific motor. Refer to the user manual for detailed parameter settings.

What is the power rating of the INVT GD350-1R5G-4?

The inverter has a rated power of 1.5kW. This corresponds to approximately 2 horsepower. It is designed for motors within this power range.

This power rating makes it suitable for many industrial tasks. It balances performance with energy efficiency. It's a common size for general machine applications.

Always match the motor's nameplate data to the inverter's specifications. Ensure the motor's full load current is within the inverter's output capability.

Can the GD350-1R5G-4 be used with different types of motors?

Primarily designed for synchronous and asynchronous motors. Its advanced vector control excels with AC induction motors. It also supports permanent magnet synchronous motors (PMSM).

The closed-loop capability is key for high-performance motors. It leverages encoder feedback for precise control. This allows it to adapt to various motor technologies.

Ensure the motor is compatible with the inverter's control modes and voltage. Always consult the product manual for a definitive list of compatible motor types.

What communication protocols does the GD350-1R5G-4 support?

It natively supports RS485 communication using Modbus RTU protocol. This allows for basic control and monitoring via a master device. It's a standard for many industrial networks.

Optional fieldbus modules are available for broader integration. These can include protocols like Profibus DP, DeviceNet, and EtherNet/IP. This enhances connectivity in complex automation systems.

Choosing the right communication protocol depends on your existing infrastructure. This ensures seamless data exchange and system integration. Always check module compatibility.

How do I reset a fault on the INVT GD350-1R5G-4?

First, identify the cause of the fault by checking the error code displayed. Power off the inverter and address the underlying issue, such as an overload or wiring problem. Ensure the fault condition is cleared.

After resolving the issue, you can typically reset the fault through the inverter's keypad. Look for a "Reset" or "Fault Reset" function. Alternatively, some faults can be reset by cycling the main power supply.

Refer to the product manual for specific fault codes and their recommended reset procedures. Some faults may require a hard reset or diagnostic intervention.

What is the voltage rating for this inverter?

The INVT GD350-1R5G-4 operates on a 400V power supply. This is a standard industrial voltage in many regions. Ensure your mains supply matches this requirement precisely.

Connecting to an incorrect voltage can damage the inverter. Always verify the supply voltage before powering up the unit. Proper voltage is critical for safe operation.

This 400V rating makes it suitable for heavier industrial applications. It allows for efficient power delivery to the connected motor.

What are the physical dimensions of the GD350-1R5G-4?

The approximate dimensions are 250mm in height, 150mm in width, and 170mm in depth. These measurements are without mounting brackets or cable glands. Always confirm with the latest datasheet for exact figures.

These compact dimensions facilitate installation in control cabinets. Ensure adequate clearance for ventilation as specified in the manual. Proper airflow is crucial for thermal management.

Consider the physical space available when planning your system layout. The unit's size is important for cabinet design and maintenance access.