INVT GD200A-355G-4 High Power Heavy Duty VFD Drive

The INVT GD200A-355G-4 High Power Heavy Duty VFD Drive is engineered for demanding industrial applications, delivering robust performance and exceptional control for heavy-duty machinery. This advanced Variable Frequency Drive (VFD) offers significant advantages, including superior energy efficiency, precise motor speed regulation, and enhanced operational reliability. Its core features encompass an intelligent control algorithm for optimal torque and speed management, a modular design for ease of maintenance, and comprehensive protection functions to safeguard connected equipment. Key technical parameters include a power rating of 355kW (400HP), an input voltage range of 3-phase 380-440V, and an output frequency range of 0-3000Hz, making it suitable for a wide array of high-power motor applications.

Product Specifications

| Parameter             | Specification                         |

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

| Model                 | GD200A-355G-4                         |

| Rated Power           | 355 kW / 400 HP                       |

| Input Voltage         | 3-Phase, 380-440V AC                  |

| Output Voltage        | 3-Phase, 0-Input Voltage AC           |

| Output Frequency      | 0 - 3000 Hz                           |

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

| Overload Capability   | 150% for 60 seconds, 180% for 10 seconds |

| Protection Features   | Overcurrent, Overvoltage, Undervoltage, Overtemperature, Phase Loss, etc. |

| Communication Options | RS485 (Modbus RTU), Optional fieldbuses |

| Ambient Temperature   | -10°C to +45°C (derating above 40°C)   |

| Dimensions (H x W x D)| Specific dimensions vary by enclosure, consult datasheet |

Core Features & Market Positioning

The INVT GD200A-355G-4 distinguishes itself in the high-power VFD market through its advanced sensorless vector control, providing exceptional torque response and precise speed accuracy without the need for motor encoders. This technology significantly simplifies installation and reduces system costs while maintaining high performance. Its robust construction and comprehensive protection mechanisms position it as a reliable solution for harsh industrial environments, minimizing downtime and maintenance requirements. The drive's efficiency ratings contribute to substantial energy savings, a critical factor for large industrial operations seeking to optimize operating expenses and reduce their environmental footprint. Furthermore, INVT's commitment to innovation is evident in the GD200A series' adaptability and feature set, making it a competitive choice against established global brands.

Key Application Scenarios

This heavy-duty VFD is ideally suited for a broad spectrum of industrial processes requiring high starting torque and precise speed control. Its robust design makes it particularly effective in mining and metallurgy, powering large crushers, ball mills, and conveyor systems where consistent performance under extreme loads is paramount. In the chemical and petrochemical industries, the GD200A-355G-4 ensures stable operation of large pumps, compressors, and extruders, even in potentially explosive atmospheres when appropriately rated. The water treatment and wastewater management sectors benefit from its ability to precisely control large centrifugal pumps and aerators, optimizing flow rates and reducing energy consumption. Furthermore, its adaptability extends to heavy manufacturing, driving large fans, blowers, and material handling equipment that demand high power and reliability.

Practical System Integration Guidance

Integrating the INVT GD200A-355G-4 into an existing system requires careful consideration of power, control, and safety aspects. Ensure the main power supply meets the specified 3-phase 380-440V AC requirements and is adequately protected by circuit breakers or fuses rated for the drive's nominal current. Wiring connections for power input, motor output, and control signals should follow the guidelines in the installation manual to prevent damage and ensure proper functionality. For motor connections, use shielded VFD cable to minimize electromagnetic interference (EMI). When programming, key parameters to configure initially include motor data (rated power, voltage, current, frequency, poles), acceleration/deceleration times, and desired control mode (e.g., sensorless vector control). Safety interlocks, such as emergency stop circuits, must be wired into the control terminal block according to safety standards.

Operation and Risk Mitigation

Operating the INVT GD200A-355G-4 involves understanding its parameter settings and fault codes to ensure smooth and safe operation. Before commissioning, verify that all wiring is secure and the motor is correctly connected. During startup, monitor motor current and speed to confirm performance aligns with expectations. Common operational risks include incorrect parameterization, leading to motor over-excitation or inadequate torque, and environmental factors like dust or moisture, which can impact internal components. Referencing the drive's manual for specific fault codes is crucial for rapid troubleshooting. For instance, an "Overcurrent Fault" (often code E.OC) might indicate a motor issue, undersized power supply, or rapid acceleration; resolving it requires checking motor load, power source, and acceleration settings. Adhering to the specified ambient temperature and ventilation requirements is vital to prevent "Over-temperature Faults" (E.OT).

Scalability & Long-Term Value

The INVT GD200A-355G-4 offers significant long-term value through its scalable design and compatibility with evolving industrial automation trends. Its modular components and optional communication cards allow for future upgrades, such as integrating advanced fieldbus protocols like EtherNet/IP or Profinet, facilitating seamless connection into sophisticated Distributed Control Systems (DCS) or Programmable Logic Controllers (PLCs). This adaptability ensures the drive remains relevant as plant automation strategies evolve towards Industry 4.0. For IIoT integration, the RS485 Modbus RTU interface, or optional fieldbus modules, enables real-time data acquisition for performance monitoring, predictive maintenance, and energy management analytics. This capability allows businesses to leverage operational data for continuous process improvement and cost optimization over the product's lifecycle.

Frequently Asked Questions (FAQs)

Q1: What is the primary advantage of using the INVT GD200A-355G-4 for heavy-duty applications?

The GD200A-355G-4 offers superior torque control and energy efficiency crucial for high-power machinery. Its robust design ensures reliability in demanding industrial settings.

It excels in applications requiring high starting torque and precise speed regulation, significantly reducing energy consumption compared to traditional motor control methods.

The VFD's advanced protection features safeguard expensive equipment, minimizing unexpected downtime and associated maintenance costs.

Q2: Can the INVT GD200A-355G-4 be used with any type of motor?

This VFD is designed to control 3-phase AC induction motors and synchronous motors. Proper motor parameter configuration within the drive is essential for optimal performance.

Always ensure the motor's voltage, current, and frequency ratings are compatible with the VFD's output specifications. Incorrect matching can lead to damage.

For specialized motor types, always consult the INVT GD200A-355G-4 user manual or INVT technical support to confirm compatibility and any necessary configuration adjustments.

Q3: What are the typical industrial sectors that benefit from the GD200A-355G-4?

Mining and metallurgy industries frequently utilize this VFD for driving heavy machinery like crushers and mills.

Chemical and petrochemical plants benefit from its reliable control of pumps and compressors in challenging environments.

Water treatment, heavy manufacturing, and material handling also represent key application areas for this powerful VFD.

Q4: How does the sensorless vector control feature benefit users?

Sensorless vector control allows for precise motor speed and torque management without requiring a motor-mounted encoder.

This simplifies installation by eliminating extra wiring and reducing potential points of failure associated with encoders.

It delivers high dynamic performance, ensuring the motor responds quickly and accurately to load changes, even in demanding applications.

Q5: What are the essential steps for installing the INVT GD200A-355G-4?

Mount the VFD in a clean, well-ventilated location, adhering to clearance requirements specified in the manual.

Carefully connect the power input, motor output, and control wiring according to the terminal diagrams, using appropriate cable types.

Perform initial parameter configuration, including motor data and basic operational settings, before powering up the motor.

Q6: What kind of protection features does the GD200A-355G-4 include?

The drive offers comprehensive protection against electrical faults such as overcurrent, overvoltage, and undervoltage.

It also provides thermal protection, preventing damage from excessive heat, and phase loss detection for both input and output.

Additional safeguards include motor overload protection, ground fault detection, and short-circuit protection for enhanced system safety.

Q7: How can I integrate the GD200A-355G-4 with my existing automation system?

The drive supports RS485 communication with the Modbus RTU protocol for basic integration.

Optional communication cards are available for common industrial fieldbuses like Profibus, DeviceNet, EtherNet/IP, and Modbus TCP for more advanced networking.

This allows for seamless data exchange and remote control within SCADA, DCS, or PLC-based automation architectures.

Q8: What is the typical power factor of the INVT GD200A-355G-4?

The power factor typically approaches unity (close to 1.0) during operation, especially when the VFD is operating at or near full load.

This high power factor contributes to improved overall system efficiency and reduced reactive power penalties from the utility provider.

For precise power factor values under various load conditions, refer to the specific technical documentation or test reports for the GD200A-355G-4.

Q9: How does the GD200A-355G-4 contribute to energy savings in industrial settings?

By precisely controlling motor speed according to the process demand, the VFD eliminates energy wastage associated with running motors at full speed constantly.

The drive's high efficiency design minimizes internal power losses, further reducing the overall energy consumed by the motor system.

Variable speed operation allows for optimized performance of pumps and fans, directly translating to significant electricity cost reductions over time.

Q10: What are common troubleshooting steps for fault codes on the GD200A-355G-4?

First, identify the specific fault code displayed on the VFD's HMI and consult the user manual for its meaning and recommended actions.

Check related external factors such as power supply stability, motor condition, and sensor inputs as indicated by the fault.

If the issue persists after basic checks, consider verifying parameter settings or contacting INVT technical support for expert assistance.