INVT GD200A-500G-4 VFD for Heavy Industrial Transmission

The INVT GD200A-500G-4 VFD stands as a robust Variable Frequency Drive engineered for demanding heavy industrial transmission applications, offering exceptional performance, reliability, and advanced control capabilities. This drive is specifically designed to optimize motor performance in critical sectors by providing precise speed regulation, enhanced energy efficiency, and superior torque control. Its advanced vector control algorithm ensures accurate and dynamic response, making it ideal for applications requiring high starting torque and smooth acceleration/deceleration profiles. The GD200A series is built with a focus on durability, featuring a compact yet rugged design that can withstand harsh industrial environments.

Product Specifications

| Parameter                | Value                               |

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

| Model                    | INVT GD200A-500G-4                  |

| Input Voltage            | 3-Phase, 380V-440V (50/60Hz)        |

| Output Capacity          | 500 HP / 375 kW                     |

| Output Current           | 830 A                               |

| Overload Capacity        | 150% for 60s, 120% for 300s         |

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

| Frequency Output Range   | 0.00-400.00 Hz                      |

| Braking Unit             | Optional external braking resistor  |

| Protection Grade         | IP20                                |

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

| Communication Options    | RS485 (Modbus-RTU), optional cards  |

Core Features & Market Positioning

The INVT GD200A-500G-4 distinguishes itself in the heavy industrial VFD market through its powerful sensorless vector control, which delivers precise motor speed and torque regulation without the need for motor feedback devices, simplifying installation and reducing costs. Its robust overload capacity, rated at 150% for 60 seconds and 120% for 300 seconds, ensures reliable operation under demanding load conditions, a critical factor in heavy machinery. The drive's inherent design focuses on energy savings by optimizing motor speed to match the load requirements, significantly reducing power consumption compared to traditional fixed-speed motor applications. This positions the GD200A-500G-4 as a highly competitive solution for industries seeking efficiency and performance gains in their mechanical transmissions.

Key Application Scenarios

This VFD is exceptionally well-suited for a wide array of heavy industrial transmission applications. Its robust torque control and ability to handle high starting torques make it ideal for driving large pumps, fans, compressors, and extruders found in petrochemical plants, water treatment facilities, and mining operations. The GD200A-500G-4 is also employed in material handling systems, such as conveyors and cranes, where precise speed control and smooth acceleration are paramount for operational efficiency and equipment longevity. Furthermore, its versatility extends to metal processing machinery, including rolling mills and presses, where consistent torque and speed are essential for product quality.

Practical System Integration Guidance

Integrating the INVT GD200A-500G-4 into existing industrial systems is streamlined by its user-friendly interface and comprehensive connectivity options. Ensure proper electrical isolation and grounding according to local electrical codes and the drive's manual to prevent electrical hazards and ensure optimal performance. For motor wiring, connect the motor leads (U, V, W) securely to the corresponding output terminals on the VFD, ensuring correct phase sequencing. For advanced control and monitoring, utilizing the built-in RS485 port with the Modbus-RTU protocol allows for seamless integration with SCADA systems and PLCs, enabling remote configuration, parameter adjustments, and real-time data acquisition. Parameter programming typically involves setting basic motor data (voltage, current, frequency, poles) and then fine-tuning control parameters like acceleration/deceleration times and speed limits based on application-specific requirements.

Operation and Risk Mitigation

Safe operation of the INVT GD200A-500G-4 VFD necessitates adherence to all safety warnings and installation guidelines outlined in the manufacturer's documentation. Always ensure the drive is powered down and de-energized before performing any maintenance or wiring adjustments to avoid severe electric shock. Common troubleshooting involves checking for overcurrent or overvoltage faults, often stemming from rapid acceleration settings or unstable power supply; adjusting ramp times and verifying input power can resolve these issues. A critical error code such as "Overload (OL)" indicates the motor is drawing more current than the drive can safely supply for an extended period, requiring an investigation into motor load or potential mechanical binding. Implementing appropriate surge protection and ensuring adequate ventilation for the drive will further mitigate operational risks and extend its service life.

Scalability & Long-Term Value

The INVT GD200A-500G-4 offers significant scalability and long-term value, particularly through its compatibility with INVT's broader product ecosystem and its ability to integrate with Industrial Internet of Things (IIoT) platforms. The drive supports various communication expansion cards, allowing for integration with diverse industrial fieldbuses such as Profibus, DeviceNet, and EtherNet/IP, which is crucial for modernizing legacy systems or implementing advanced automation strategies. This flexibility ensures that the GD200A-500G-4 can adapt to evolving operational demands and technological advancements, protecting the initial investment. Furthermore, its robust construction and energy-saving capabilities contribute to reduced operational costs and a lower total cost of ownership over the product's lifecycle.

FAQs

What is the primary function of the INVT GD200A-500G-4 VFD?

The INVT GD200A-500G-4 VFD primarily controls the speed and torque of electric motors in heavy industrial applications. It allows for precise adjustment of motor output, leading to significant energy savings and improved process control. This advanced drive ensures smooth motor operation, reducing mechanical stress.

It achieves this through sophisticated control algorithms, offering both sensorless vector control and V/f control modes. This flexibility allows it to be adapted to a wide range of motor types and application demands, from simple fan control to complex torque-sensitive machinery.

By precisely matching motor speed to the actual load requirement, the GD200A-500G-4 minimizes wasted energy. This efficiency enhancement is critical for reducing operational costs in large-scale industrial settings where motors run for extended periods.

How does sensorless vector control work in the GD200A-500G-4?

Sensorless vector control in the INVT GD200A-500G-4 VFD enables precise motor speed and torque regulation without requiring encoders or resolvers. The drive calculates motor flux and torque based on voltage and current measurements. This method simplifies installation by eliminating feedback wiring and reducing potential points of failure.

It dynamically adjusts the voltage and frequency applied to the motor to maintain the desired torque output, even under varying load conditions. This results in excellent dynamic response and accurate speed holding, crucial for applications like conveyor belts and pumps requiring consistent performance.

The algorithm compensates for motor parameter variations, ensuring reliable operation across different operating speeds and loads. This robust control strategy makes the GD200A-500G-4 a powerful solution for demanding industrial environments where precision is key.

What are the typical applications for the INVT GD200A-500G-4 VFD?

The INVT GD200A-500G-4 VFD is designed for heavy-duty industrial applications requiring high power and robust control. Common uses include driving large pumps, fans, compressors, and extruders in sectors like petrochemical, water treatment, and manufacturing. Its high starting torque capability is particularly beneficial for these applications.

Material handling systems, such as heavy-duty conveyors, cranes, and elevators, also benefit from the precise speed control and smooth acceleration/deceleration offered by this VFD. It helps optimize throughput and reduce wear on mechanical components.

Furthermore, it finds application in metal processing machinery like rolling mills and presses, where consistent and adjustable torque is essential for product quality and operational efficiency. Its ability to withstand harsh environments ensures reliable operation in these demanding settings.

What is the input voltage range for the INVT GD200A-500G-4?

The INVT GD200A-500G-4 VFD operates on a three-phase input voltage supply. Specifically, it is designed to accept a voltage range of 380V to 440V AC. This is a standard industrial voltage configuration in many regions worldwide, ensuring broad compatibility.

This input voltage range is crucial for providing the necessary power to drive heavy industrial motors with a capacity of up to 500 HP (375 kW). The drive's internal power electronics are optimized to efficiently convert this incoming AC power to the variable frequency and voltage required by the motor.

It is essential to ensure that the incoming power supply frequency is within the specified 50/60 Hz range for optimal performance and longevity of the VFD. Incorrect input voltage can lead to operational issues or damage to the unit.

What is the maximum output current of the GD200A-500G-4?

The INVT GD200A-500G-4 VFD has a maximum continuous output current rating of 830 Amperes. This high current capability allows it to effectively drive motors that require substantial power for heavy industrial tasks.

This significant current capacity ensures that the VFD can sustain operation under demanding load conditions without overheating or tripping its protective circuits. It is essential for applications that require high torque, especially during startup and acceleration phases.

It is important to match the motor's full load current rating to the VFD's output current capability, ensuring the drive is adequately sized for the application. The 830A rating provides ample headroom for many high-power motor applications.

Can the GD200A-500G-4 be used with different types of motors?

Yes, the INVT GD200A-500G-4 VFD is versatile and can be used with various AC motor types. Its primary control modes, sensorless vector control and V/f control, allow it to optimize performance for different motor characteristics, including induction motors.

The drive's advanced parameter settings enable users to fine-tune its operation based on specific motor specifications such as voltage, current, frequency, and number of poles. This customization ensures efficient and precise motor control regardless of minor motor variations.

While primarily designed for standard AC induction motors, its robust control algorithms can adapt to a wide operating range, making it suitable for numerous industrial motor-driven applications where precise speed and torque are required.

What communication protocols does the INVT GD200A-500G-4 support?

The INVT GD200A-500G-4 VFD comes standard with an integrated RS485 communication interface. This port typically utilizes the Modbus-RTU protocol, which is widely adopted in industrial automation for device communication.

This enables seamless integration with Programmable Logic Controllers (PLCs), Human-Machine Interfaces (HMIs), and Supervisory Control and Data Acquisition (SCADA) systems. Users can remotely monitor, control, and configure the VFD's parameters via this communication link.

Additionally, the GD200A series often supports optional communication expansion cards, allowing for integration with other popular industrial fieldbuses like Profibus, DeviceNet, and EtherNet/IP, offering greater flexibility for complex automation networks.

How is the GD200A-500G-4 installed and commissioned?

Installation of the INVT GD200A-500G-4 VFD requires careful adherence to electrical safety standards and the manufacturer's manual. Proper grounding of the drive and motor is essential for safety and performance. Ensure adequate ventilation and environmental conditions as specified.

Wiring involves connecting the three-phase AC input power to the drive's input terminals and the motor leads (U, V, W) to the output terminals. Control wiring for digital and analog inputs/outputs, as well as communication cables, should be connected according to the schematic diagram provided in the user manual.

Commissioning typically begins with basic parameter setup, including motor data entry (voltage, current, frequency, poles). Subsequent steps involve parameter tuning for acceleration/deceleration times, speed limits, and control modes, followed by functional testing under load to verify optimal performance.

What are some common fault codes for the INVT GD200A-500G-4?

Common fault codes for the INVT GD200A-500G-4 include "Overcurrent (OC)" and "Overvoltage (OV)". OC faults typically indicate that the motor is drawing more current than the drive is rated for, often due to rapid acceleration, heavy load, or motor issues. OV faults suggest the input voltage is excessively high.

Another frequent fault is "Overload (OL)", which signifies that the drive has detected sustained current exceeding its capacity for a prolonged period, even if within instantaneous limits. This can point to an overloaded motor or issues with the mechanical system it's driving.

Other faults may relate to "Earth Fault (GF)" indicating leakage current to ground, "Motor Overheating (OH)" detected via an optional thermal probe, or communication errors. Consulting the drive's manual for specific fault code definitions and troubleshooting steps is crucial.

Does the GD200A-500G-4 offer energy-saving features?

Yes, the INVT GD200A-500G-4 VFD is inherently designed for energy savings. By precisely controlling motor speed to match the actual load requirements, it eliminates the energy waste associated with running motors at full speed when not needed.

Its advanced control algorithms, particularly the sensorless vector control, enable highly efficient operation across a wide speed range. This means that even at reduced speeds, the VFD maintains optimal motor performance while consuming significantly less power compared to mechanical throttling or fixed-speed operation.

The ability to ramp motor speed up and down smoothly also contributes to energy efficiency by reducing peak current draws during startup and deceleration, further optimizing power consumption and reducing strain on the electrical system.