INVT GD350A-280G/315P-4 High Performance General VFD Drive
The INVT GD350A-280G/315P-4 High Performance General VFD Drive stands as a robust solution for a wide array of industrial motor control applications, offering superior performance, energy efficiency, and advanced features. This sophisticated variable frequency drive (VFD) is engineered for demanding environments, boasting a rated power of 280kW for the GD350A-280G model and 315kW for the GD350A-315P-4 variant. It operates across a wide input voltage range, typically from 380V to 440V, ensuring compatibility with various power grids. The drive's sophisticated control algorithms deliver precise speed and torque regulation, crucial for optimizing process efficiency and reducing mechanical stress. Key advantages include its high overload capacity, excellent dynamic response, and comprehensive protection functions, making it a reliable choice for critical industrial operations.
Product Specifications
| Feature | Specification |
| :----------------------- | :----------------------------------------------------- |
| Model Series | GD350A |
| Rated Power (GD350A-280G) | 280 kW |
| Rated Power (GD350A-315P-4)| 315 kW |
| Input Voltage Range | 380V - 440V AC |
| Output Frequency | 0 - 3000 Hz |
| Control Method | Sensorless Vector Control, V/f Control |
| Overload Capacity | 150% for 60 seconds, 120% for 300 seconds |
| Protection Features | Overcurrent, Overvoltage, Undervoltage, Overload, etc. |
| Communication Ports | RS485 (Modbus RTU standard) |
| Ambient Temperature | -10°C to +40°C (derating above +40°C) |
| Humidity | < 95% RH (non-condensing) |
Core Features & Market Positioning
The INVT GD350A-280G/315P-4 distinguishes itself through its advanced sensorless vector control technology, which provides exceptional torque accuracy and dynamic performance comparable to closed-loop systems, even under fluctuating loads. This capability positions it as a premium general-purpose VFD suitable for high-demand applications like extruders, cranes, and metal processing machinery where precise speed and torque management are paramount. Its robust design, featuring high-quality components and advanced thermal management, ensures reliable operation in harsh industrial environments, offering a competitive edge over less durable alternatives. The drive's integrated braking unit (on select models) further enhances its application flexibility by providing effective deceleration control.
Key Application Scenarios
This high-performance VFD finds extensive utility across numerous industrial sectors. In manufacturing, it excels in controlling conveyor systems, pumps, fans, and mixers, optimizing energy consumption and process stability. The GD350A-280G/315P-4 is particularly well-suited for applications requiring rapid acceleration and deceleration, such as in the plastics industry for extrusion and injection molding machines, and in the textile industry for high-speed winding and unwinding operations. Its precise control also makes it an ideal choice for HVAC systems to manage airflow and water pressure efficiently, reducing operational costs. Furthermore, it is applied in the chemical industry for precise flow control in pumping applications and in the metallurgy sector for controlling rolling mills and other heavy machinery.
Practical System Integration Guidance
Integrating the INVT GD350A-280G/315P-4 into existing systems is streamlined due to its flexible communication capabilities and standard mounting options. The drive supports the Modbus RTU protocol via its RS485 port, allowing seamless integration with SCADA systems and PLCs for remote monitoring and control. Wiring should be performed by qualified personnel, adhering to local electrical codes and the manufacturer's guidelines. Pay close attention to grounding to minimize electrical noise and ensure optimal performance. Parameter setting is intuitive via the integrated keypad or through specialized software, enabling users to fine-tune motor characteristics, control modes, and protection settings for specific applications. For instance, setting the appropriate acceleration and deceleration times is critical for smooth operation and preventing mechanical shock.
Operation and Risk Mitigation
Safe operation of the INVT GD350A-280G/315P-4 VFD necessitates adherence to installation and operational guidelines. Ensure the drive is installed in a clean, dry, and well-ventilated environment, away from direct sunlight and sources of extreme heat or vibration. Before powering on, verify all connections and parameter settings. Critical error codes, such as "Overcurrent" (OC), "Overvoltage" (OV), or "Motor Overload" (OL), indicate potential issues that require immediate attention and troubleshooting as per the user manual. For instance, an OC fault might suggest incorrect motor parameters, insufficient power supply, or a mechanical issue with the driven load. Implementing appropriate power quality measures, like line reactors or filters, can further mitigate risks associated with voltage fluctuations and harmonic distortion.
Scalability & Long-Term Value
The INVT GD350A-280G/315P-4 is designed with scalability and long-term value in mind. Its modular design and support for various communication protocols facilitate integration into evolving industrial automation architectures, including IIoT platforms. The drive's firmware is often updatable, allowing for enhancements and compatibility with new technologies. Its robust construction and comprehensive protection features minimize downtime and maintenance requirements, contributing to a lower total cost of ownership. Furthermore, INVT's commitment to research and development ensures that the GD350A series remains a competitive and relevant solution for years to come, supporting upgrades and expansions of industrial facilities.
Frequently Asked Questions
What are the primary benefits of using the INVT GD350A-280G/315P-4 VFD?
The drive offers superior energy savings by precisely controlling motor speed to match load requirements, reducing wasted power consumption significantly. Its advanced sensorless vector control provides excellent torque accuracy and dynamic response, enhancing process efficiency and product quality in demanding applications. The robust construction and comprehensive protection features ensure high reliability and extended operational life, minimizing maintenance costs and unplanned downtime.
How does the sensorless vector control feature of the GD350A-280G/315P-4 enhance performance?
Sensorless vector control enables the VFD to accurately regulate motor speed and torque without requiring a speed encoder feedback. This precise control is crucial for applications needing consistent performance under varying load conditions, such as conveyors, pumps, and fans. It allows for rapid torque response, smooth acceleration/deceleration, and the ability to maintain rated torque even at very low speeds.
What kind of motor is best suited for the INVT GD350A-280G/315P-4?
This VFD is designed for use with standard three-phase AC induction motors, providing precise speed and torque control across a wide operating range. It is compatible with motors rated for the drive's voltage and power output, ensuring efficient operation for various industrial applications. Proper motor selection based on load requirements and the drive's specifications is essential for optimal performance and longevity.
Can the INVT GD350A-280G/315P-4 be integrated into existing automation systems?
Yes, the GD350A-280G/315P-4 features built-in RS485 communication with Modbus RTU protocol support, allowing easy integration with PLCs, HMIs, and SCADA systems. This enables remote monitoring, control, and data acquisition, facilitating seamless incorporation into existing industrial networks and smart manufacturing environments.
What are the typical industrial applications for this high-performance VFD?
This VFD is ideal for demanding applications in manufacturing, such as controlling extruders, injection molding machines, cranes, and metal processing equipment. It is also widely used in HVAC systems for pumps and fans, textile machinery, chemical processing, and any industry requiring precise motor speed and torque control for efficiency and performance.
How important is motor tuning for the GD350A-280G/315P-4?
Motor tuning, often referred to as auto-tuning, is crucial for maximizing the performance of the GD350A-280G/315P-4. It allows the VFD to accurately identify the motor's electrical characteristics, enabling precise sensorless vector control. Proper tuning ensures optimal torque, speed regulation, and protection against motor faults.
What is the typical input voltage range for the INVT GD350A-280G/315P-4?
The INVT GD350A-280G/315P-4 is designed to operate with a standard three-phase input voltage range of 380V to 440V AC. This broad voltage compatibility makes it suitable for a wide variety of industrial power supply systems found globally, ensuring flexibility in installation.
Does this VFD offer built-in protection features?
Absolutely, the INVT GD350A-280G/315P-4 is equipped with a comprehensive suite of protection features. These include protections against overcurrent, overvoltage, undervoltage, motor overload, phase loss, and over-temperature, safeguarding both the drive and the motor from damage and ensuring operational safety.
What is the overload capacity of the GD350A-280G/315P-4?
The drive provides a substantial overload capacity, typically rated for 150% of its nominal current for up to 60 seconds and 120% for up to 300 seconds. This robust overload capability is essential for applications with high starting torque requirements or sudden load fluctuations, preventing nuisance tripping.
How can I troubleshoot common faults on the INVT GD350A-280G/315P-4?
Common faults like OC (Overcurrent) or OL (Overload) can often be resolved by checking motor parameters, ensuring correct wiring, and verifying that the load does not exceed the drive's or motor's capacity. Reviewing the specific error code displayed on the drive's interface and consulting the user manual's troubleshooting section is the first step.
