INVT GD200A-055G/075P-4 3-Phase High Power VFD Drive

The INVT GD200A-055G/075P-4 3-Phase High Power VFD Drive represents a significant advancement in industrial motor control, delivering robust performance, energy efficiency, and advanced functionality for demanding applications. This variable frequency drive (VFD) is engineered to optimize the operation of three-phase induction motors, providing precise speed and torque control. Its core advantages lie in its high power density, sophisticated control algorithms, and comprehensive protection features, making it an ideal choice for heavy-duty industrial machinery.

Product Specifications

| Parameter             | Specification                               |

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

| Model                 | GD200A-055G/075P-4                          |

| Power Rating (kW)     | 55 kW (Normal Duty) / 37 kW (Heavy Duty)    |

| Power Rating (HP)     | 75 HP (Normal Duty) / 50 HP (Heavy Duty)      |

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

| Output Voltage        | 3-Phase, 0-380V/460V AC                     |

| Output Frequency      | 0-3000 Hz                                   |

| Control Method        | Sensorless Vector Control, V/f Control      |

| Overload Capacity     | 150% for 60s (Heavy Duty), 120% for 60s (Normal Duty) |

| Braking Unit          | Integrated (Up to 37kW/50HP)                |

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

| Communication Ports   | RS485 (Standard), Optional Fieldbus Modules |

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

Core Features & Market Positioning

The INVT GD200A-055G/075P-4 distinguishes itself through its advanced sensorless vector control, offering exceptional torque response and accuracy even without motor encoders, a critical advantage for applications requiring dynamic speed changes. Its dual-mode operation (Normal Duty/Heavy Duty) provides flexibility, allowing users to tailor the drive's performance to specific load requirements, thereby maximizing efficiency and lifespan. This VFD is positioned as a premium solution for industries prioritizing reliability, energy savings, and sophisticated motor management. Its robust design and comprehensive protection mechanisms, including advanced over-current and over-voltage protection, minimize downtime and safeguard valuable equipment.

Key Application Scenarios

This high-power VFD is exceptionally suited for a broad spectrum of industrial applications. It excels in powering large pumps and fans in HVAC systems, wastewater treatment plants, and industrial ventilation, where precise flow control is paramount. The GD200A-055G/075P-4 is also a robust choice for conveyors, extruders, and mixers in manufacturing, plastics, and food processing industries, where consistent torque and speed are essential for product quality and throughput. Furthermore, its capabilities extend to material handling equipment, compressors, and textile machinery, demonstrating its versatility across various heavy industrial sectors.

Practical System Integration Guidance

Integrating the INVT GD200A-055G/075P-4 into existing systems is streamlined by its user-friendly interface and flexible connectivity options. For wiring, ensure compliance with local electrical codes, utilizing appropriately sized conductors for both power and control circuits. The drive supports standard communication protocols like Modbus RTU via its RS485 port, facilitating seamless integration with SCADA systems and PLCs for remote monitoring and control. Parameter programming is intuitive via the local keypad or optional PC software, allowing for fine-tuning of acceleration/deceleration ramps, speed limits, and PID control loops to match specific process demands. Careful consideration of external braking resistors for heavy-duty applications or frequent stopping is recommended to manage regenerative energy effectively.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD200A-055G/075P-4 hinges on adherence to proper installation and maintenance protocols. Always ensure the drive is installed in a well-ventilated environment, away from excessive dust and moisture, to prevent overheating and component damage. Prior to commissioning, verify all power and motor connections are secure and that the input voltage matches the drive's specifications. Common troubleshooting often involves reviewing error codes displayed on the drive's interface; for instance, an "Overcurrent Fault" (e.g., F01) might indicate an incorrect parameter setting, motor issue, or sudden load change, requiring adjustments to acceleration ramps or load assessment. Similarly, an "Over-voltage Fault" (e.g., F02) suggests excessive regenerative energy, possibly necessitating the installation of a braking unit or resistor. Regular inspection of cooling fans and heatsinks ensures optimal thermal performance.

Scalability & Long-Term Value

The INVT GD200A-055G/075P-4 offers significant scalability and long-term value, particularly through its compatibility with advanced industrial automation platforms. Its modular design and support for optional communication modules (e.g., Profibus, DeviceNet) enable effortless integration into IIoT environments, facilitating data collection for predictive maintenance and performance analytics. This drive supports firmware updates, ensuring access to the latest control algorithms and features, thereby extending its operational relevance. The robust build quality and INVT's commitment to product development ensure that this VFD remains a cost-effective and reliable component in evolving industrial landscapes, minimizing the need for premature system upgrades.

FAQs

What are the primary benefits of using the INVT GD200A-055G/075P-4 VFD?

This VFD offers substantial energy savings by precisely matching motor speed to load demands. It enhances process control through accurate speed and torque regulation, improving product quality and consistency. The drive also provides comprehensive motor protection, reducing wear and tear and minimizing costly downtime.

The INVT GD200A-055G/075P-4 features advanced sensorless vector control for superior performance without encoders. It includes dual operating modes (Normal/Heavy Duty) for application flexibility. Its robust design ensures reliability in demanding industrial environments.

The drive's integrated braking unit (on select models) and extensive protection features safeguard equipment against electrical faults and mechanical stress. Its communication capabilities allow for seamless integration into automated systems for enhanced monitoring and diagnostics.

How does the INVT GD200A-055G/075P-4 handle overload conditions?

The drive offers distinct overload capabilities based on its Normal Duty (ND) and Heavy Duty (HD) modes. In HD mode, it can sustain 150% of its rated current for up to 60 seconds. In ND mode, it handles 120% of rated current for the same duration.

This dual-mode operation allows users to optimize the VFD for applications with frequent or severe load fluctuations. Selecting the appropriate mode ensures the drive performs reliably without tripping unnecessarily, while still protecting the motor and itself.

Effective management of overload conditions also involves proper parameter settings, such as acceleration/deceleration times, and potentially utilizing external braking resistors to absorb excess energy during rapid deceleration or heavy loads.

What are the typical applications for the INVT GD200A-055G/075P-4?

This high-power VFD is ideal for large industrial fans and pumps in sectors like HVAC, water treatment, and mining. It provides precise control for machinery in manufacturing, such as extruders, conveyors, and mixers, where consistent performance is critical.

The drive is also well-suited for applications requiring significant starting torque and variable speed control, including compressors, crushers, and material handling equipment. Its robustness makes it a reliable choice for heavy-duty operations.

Industries such as plastics, textiles, and metal processing commonly utilize this VFD to optimize production efficiency, reduce energy consumption, and enhance the longevity of their motor-driven equipment.

Can the INVT GD200A-055G/075P-4 be integrated into a networked control system?

Yes, the INVT GD200A-055G/075P-4 supports standard industrial communication protocols. It comes equipped with an RS485 port for Modbus RTU communication as a standard feature.

The drive also offers optional communication modules, allowing integration with other fieldbus networks like Profibus DP, DeviceNet, and CANopen. This enables seamless connectivity with PLCs and SCADA systems for advanced control and monitoring.

This networking capability is crucial for modern industrial automation, enabling remote diagnostics, parameter adjustments, and the integration of the VFD into broader IIoT strategies for enhanced operational intelligence.

What are the key technical parameters to consider when selecting this VFD?

Motor power rating (kW/HP) and the duty cycle (Normal/Heavy Duty) are critical to ensure the VFD is correctly sized for the application. Input voltage range (380-460V) must match the available power supply.

Output frequency range (up to 3000 Hz) is important for high-speed applications, while control methods like sensorless vector control dictate performance precision. Overload capacity and braking capabilities are essential for dynamic loads.

Environmental factors such as operating temperature range and protection ratings (IP) should align with the installation site conditions to ensure reliability and longevity. Communication interfaces are also key for integration.

How is the INVT GD200A-055G/075P-4 installed and commissioned?

Installation requires proper mounting in a well-ventilated area, ensuring adequate clearance for heatsink dissipation. Electrical connections must be made according to local codes, using correctly sized conductors for power and control wiring.

Commissioning involves setting essential drive parameters, including motor data (rated power, voltage, frequency, poles), acceleration/deceleration times, and speed limits. Initial startup should be performed in a controlled environment, ideally with a load test.

For optimal performance, advanced parameters like PID control, output current limits, and protection thresholds should be finely tuned based on the specific application requirements and load characteristics.

What safety precautions should be taken when operating this VFD?

Always ensure proper grounding of the drive and motor to prevent electrical hazards. Follow lockout/tagout procedures during maintenance. Verify that all enclosure covers are securely in place before powering up.

Avoid touching live terminals; always disconnect power and allow sufficient discharge time (refer to manual) before any internal inspection or work. Use appropriate PPE when working with electrical equipment.

Ensure the drive's protection settings are configured correctly to prevent over-voltage, over-current, and over-temperature faults, which can indicate underlying issues that need immediate attention to prevent equipment damage or injury.

What type of motor control does the INVT GD200A-055G/075P-4 utilize?

The drive prominently features advanced sensorless vector control, which enables precise speed and torque regulation without the need for a motor encoder. This technology provides excellent dynamic response and accuracy.

It also supports traditional V/f (Voltage/Frequency) control methods, offering a simpler yet effective solution for applications where precise torque control is not the primary concern. This flexibility allows for optimization across various motor types and loads.

The choice between sensorless vector and V/f control is typically made during the commissioning phase, based on the specific application's performance requirements and motor characteristics for optimal efficiency and control.

What are common troubleshooting steps for faults on this VFD?

When a fault occurs, the first step is to check the drive's display for the specific error code (e.g., F01 for Overcurrent, F02 for Over-voltage). Consult the user manual to understand the meaning of the code and its potential causes.

Troubleshooting often involves verifying input power, checking motor and output connections, and examining the motor's condition. Parameter settings, such as acceleration ramps and current limits, may need adjustment to resolve issues related to load dynamics.

For persistent issues or specific fault types like ground faults or communication errors, a systematic approach involving isolation of components, testing with known good parts, or consulting INVT technical support may be necessary.

How can the scalability and long-term value of this VFD be maximized?

Maximize scalability by selecting optional communication modules to integrate the VFD into advanced industrial networks and IIoT platforms for data-driven insights. Keep firmware updated to benefit from the latest performance enhancements and features.

Ensure compatibility with future control system upgrades by utilizing standard communication protocols. The robust construction and quality components contribute to a long operational lifespan, reducing the total cost of ownership.

Leverage the VFD's flexibility through its dual-mode operation and programmable I/O to adapt to evolving production needs. Regular maintenance and adherence to operational guidelines will further enhance its long-term value and reliability.