INVT GD350A-1500G-4 Vector Control VFD Drive

The INVT GD350A-1500G-4 Vector Control VFD Drive stands as a robust solution for demanding industrial applications, offering superior motor control and energy efficiency. Its advanced vector control algorithm ensures precise speed and torque regulation, making it ideal for machinery requiring dynamic performance. Key advantages include its high overload capacity, comprehensive protection features, and flexible communication options. Technical specifications highlight a 1500kW power rating, input voltage of 400V class, and an output frequency range of 0-3000 Hz, making it a powerhouse for heavy-duty operations.

Product Specifications

| Parameter           | Specification                                 |

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

| Model               | GD350A-1500G-4                                |

| Rated Power         | 1500 kW                                       |

| Input Voltage Class | 400V Class                                    |

| Output Frequency    | 0-3000 Hz                                     |

| Control Method      | Vector Control (SVC, V/f)                     |

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

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

| Communication       | RS485 (Modbus), optional fieldbuses           |

| Ambient Temp.       | -10°C to 40°C (derating above 40°C)           |

| Altitude            | <1000m (derating above 1000m)                 |

Core Features & Market Positioning

The INVT GD350A-1500G-4 distinguishes itself with its cutting-edge sensorless vector control (SVC) technology, delivering exceptional dynamic response and precise torque control even without motor encoders. This capability positions it as a premium choice for applications where rapid acceleration, deceleration, and stable low-speed operation are critical, outperforming standard V/f control methods in such scenarios. Its robust design, including a high overload capacity of 150% for 60 seconds and 180% for 10 seconds, ensures reliable operation under the most strenuous industrial conditions, a significant competitive advantage over drives with lower overload capabilities. Furthermore, the inclusion of multiple braking options, such as dynamic braking and regenerative braking (with optional modules), allows for effective energy management and rapid stopping, further enhancing its market appeal for energy-intensive sectors.

Key Application Scenarios

This high-power VFD drive is engineered for a wide spectrum of heavy-duty industrial applications. It excels in driving large industrial fans and pumps in sectors like water treatment and HVAC, where precise flow and pressure control are paramount. Its robust performance characteristics make it suitable for extruders, mixers, and crushers in the plastics and mining industries, demanding consistent torque delivery under varying load conditions. Furthermore, the INVT GD350A-1500G-4 finds utility in material handling systems, such as conveyors and cranes, where accurate speed regulation and dynamic braking are essential for efficient operation and safety.

Practical System Integration Guidance

Integrating the INVT GD350A-1500G-4 into existing industrial systems requires careful attention to wiring and parameter configuration. For power connections, ensure compliance with local electrical codes and use appropriately sized conductors for both input power and motor output. The drive features multiple terminals for digital and analog inputs/outputs, allowing flexible integration with PLCs and other control systems. For optimal performance, motor parameters such as rated power, voltage, current, and speed must be accurately entered into the drive's settings. Commissioning typically involves performing an auto-tuning procedure to calibrate the VFD to the specific motor characteristics, ensuring optimal torque response and efficiency.

Operation and Risk Mitigation

Safe operation of the INVT GD350A-1500G-4 VFD drive necessitates adherence to the manufacturer's guidelines and industry best practices. Before performing any electrical work, ensure the drive is completely de-energized and all capacitors have discharged. Implement appropriate grounding for the drive and motor to prevent electrical hazards and ensure optimal performance. Common fault codes, such as over-current (OC), over-voltage (OV), and motor overload (OL), can be addressed by checking motor load, supply voltage stability, and ensuring proper motor parameters are set. The drive's comprehensive built-in protection features are designed to mitigate risks, but regular visual inspections and maintenance are crucial for long-term reliability.

Scalability & Long-Term Value

The INVT GD350A-1500G-4 offers significant long-term value through its scalability and compatibility. Its modular design and support for various communication protocols, including Modbus RTU via RS485 and optional industrial Ethernet modules, facilitate seamless integration into advanced automation architectures and the Industrial Internet of Things (IIoT). This allows for remote monitoring, diagnostics, and control, enhancing operational efficiency and predictive maintenance capabilities. The drive's robust build quality and INVT's commitment to product development suggest a long operational lifespan and availability of software updates, ensuring it remains a relevant and high-performing component in evolving industrial landscapes.

FAQs

1. What is the primary advantage of the INVT GD350A-1500G-4's vector control?

Vector control enables precise management of motor speed and torque. It ensures accurate performance even with fluctuating loads. This technology significantly enhances efficiency.

This control method provides superior dynamic response. It's crucial for demanding applications. The drive achieves high accuracy at low speeds.

Its ability to control torque independently is key. This allows for better process control. It offers a competitive edge in performance.

2. How does the overload capacity of the GD350A-1500G-4 benefit industrial operations?

The drive handles 150% of rated current for 60 seconds. It also supports 180% for 10 seconds. This robust capability handles peak demands.

This feature prevents nuisance tripping during startup. It ensures continuous operation under heavy loads. Machine productivity remains high.

Equipment longevity is enhanced by this feature. It protects the motor and drive from damage. This reduces maintenance costs.

3. What types of industrial applications are best suited for this VFD?

This VFD is ideal for heavy-duty motor applications. Think large fans, pumps, and compressors. It's also suited for extruders and mixers.

Mining and material handling sectors benefit greatly. Its precise control is crucial for crushers and conveyors. It ensures efficient and safe operation.

Water treatment and HVAC systems utilize its capabilities. Precise flow and pressure regulation are achieved. It contributes to energy savings.

4. What are the key parameters to consider during installation?

Ensure proper power supply voltage and frequency. Verify motor specifications match drive settings. Select appropriate cable sizes for power connections.

Proper grounding of the drive and motor is vital. Follow local electrical codes strictly. Incorrect wiring can cause faults.

Consider environmental factors like temperature and altitude. Derating may be necessary if conditions exceed limits. Plan for adequate ventilation.

5. Can the GD350A-1500G-4 be integrated with modern automation systems?

Yes, it supports standard communication protocols like Modbus RTU. Optional fieldbus modules are available for broader integration. This allows PLC connectivity.

It's designed for IIoT environments. Remote monitoring and diagnostics are possible. This enhances operational oversight.

This drive facilitates smart factory implementations. It can be part of a networked control architecture. Data exchange is streamlined.

6. What safety precautions should be taken when operating this VFD?

Always disconnect power before maintenance. Allow capacitors to discharge fully. Ensure all personnel are trained.

Use proper personal protective equipment (PPE). Follow lockout/tagout procedures diligently. Never operate with covers removed.

Be aware of high voltages present. Understand the drive's fault codes. Implement emergency stop functionality.

7. How does the drive handle motor starting and stopping?

It provides smooth acceleration and deceleration control. This minimizes mechanical stress on the motor. It prevents current surges.

Dynamic braking offers rapid stopping capabilities. Optional regenerative braking can recover energy. This optimizes performance.

Adjustable ramp times allow for tailored start/stop profiles. This suits specific application needs. It ensures controlled motion.

8. What common fault codes might be encountered and how are they resolved?

Over-current (OC) faults typically indicate motor overload. Check for excessive load or incorrect motor parameters. Reduce the acceleration time if too short.

Over-voltage (OV) faults relate to power supply issues. Ensure the supply voltage is within range. Consider adding an AC reactor or braking unit.

Motor overload (OL) indicates sustained high current draw. Verify motor nameplate data is correctly programmed. Check for bearing issues or excessive friction.

9. What is the typical lifespan and maintenance required for this VFD?

The GD350A-1500G-4 is built for industrial durability. Expected lifespan depends on operating conditions. Regular preventative maintenance is key.

Annual inspections of cooling fans and filters are recommended. Check electrical connections for tightness. Monitor for any unusual noises or vibrations.

Firmware updates may enhance performance. Consult the user manual for specific maintenance schedules. Proactive care maximizes longevity.

10. How does this VFD contribute to energy efficiency in industrial settings?

It adjusts motor speed to match load demand precisely. This avoids running motors at full speed unnecessarily. Significant energy savings result.

Variable speed operation reduces power consumption. Energy is not wasted on over-speeding. It optimizes power factor.

Regenerative braking options can return energy to the grid. This further reduces overall energy usage. It offers a sustainable advantage.