INVT GD350-075G/090P-45-AS-B Goodrive350 AS Series Inverter 75kW to 90kW Integrated Braking Unit

The INVT GD350-075G/090P-45-AS-B Goodrive350 AS Series Inverter, a robust solution for variable speed drive applications, offers an integrated braking unit and a power range from 75kW to 90kW. This advanced inverter is engineered for superior performance, reliability, and energy efficiency, making it a premier choice for demanding industrial environments. Its key advantages include high torque output, precise motor control, and a compact design with an integrated braking resistor for space-saving installations. Technical highlights encompass a rated power of 75kW (normal duty) to 90kW (heavy duty), an input voltage of 3-phase 380-460V, and an output frequency range of 0-400Hz. The GD350 series also boasts advanced control algorithms, multiple protection functions, and communication options for seamless system integration.

Product Specifications

| Parameter                       | Specification                               |

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

| Model                           | GD350-075G/090P-45-AS-B                     |

| Series                          | Goodrive350 AS Series                       |

| Rated Power (Normal Duty)       | 75kW                                        |

| Rated Power (Heavy Duty)        | 90kW                                        |

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

| Output Frequency                | 0-400Hz                                     |

| Integrated Braking Unit         | Yes                                         |

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

| Protection Functions            | Overcurrent, Overvoltage, Undervoltage, etc. |

| Communication Interfaces        | RS485 (Standard), Optional fieldbus modules |

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

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

Core Features & Market Positioning

The INVT GD350-075G/090P-45-AS-B distinguishes itself in the industrial automation market through its advanced sensorless vector control technology, providing exceptional speed and torque accuracy even under fluctuating loads. This performance capability positions it as a superior alternative to traditional fixed-speed motor applications, driving significant energy savings and process optimization. The integrated braking unit is a crucial differentiator, simplifying installation by eliminating the need for external braking resistors and associated wiring, thereby reducing system complexity and cost. Furthermore, the robust design and comprehensive protection features ensure high operational reliability, a critical factor for end-users in sectors demanding continuous uptime. Its competitive pricing, combined with advanced functionalities, makes it an attractive option for both new installations and upgrades.

Key Application Scenarios

This 75kW to 90kW inverter is ideally suited for a wide array of demanding industrial applications. Common use cases include the precise control of centrifugal fans and pumps in HVAC systems and water treatment plants, where variable speed operation significantly enhances energy efficiency and reduces wear and tear. It is also highly effective in conveyor systems, material handling equipment, and extruders in the plastics and rubber industries, where maintaining consistent speed and torque is paramount for product quality. The integrated braking unit is particularly beneficial for applications involving frequent stops and starts or where load inertia needs to be rapidly dissipated, such as in cranes, hoists, and elevators. Furthermore, its robust performance makes it suitable for machine tools and textile machinery requiring accurate speed regulation.

Practical System Integration Guidance

Integrating the INVT GD350-075G/090P-45-AS-B into existing industrial systems is facilitated by its user-friendly design and flexible configuration options. For electrical connections, ensure the main power terminals are correctly wired according to the product manual, paying close attention to phase sequences for the input power and output to the motor. The integrated braking unit typically requires connection of the internal braking resistor to designated terminals, simplifying this aspect of the setup. For programming, the inverter offers multiple parameter groups to tailor performance to specific applications, including motor data auto-tuning for precise vector control. The standard RS485 communication port allows for easy integration into SCADA systems or PLC networks using Modbus RTU protocol, enabling remote monitoring and control.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD350-075G/090P-45-AS-B inverter is paramount. Always ensure proper grounding of the unit and connected motor to mitigate electrical hazards and interference. Before initial startup, perform motor auto-tuning in an unloaded state to ensure accurate parameter settings for optimal performance and to prevent potential overloads or oscillations. Familiarize yourself with the inverter's fault code list; for instance, an "OC" (Overcurrent) fault might indicate an undersized motor, excessive acceleration, or a short circuit, requiring immediate investigation. "OV" (Overvoltage) or "UV" (Undervoltage) faults typically point to input power supply issues or rapid deceleration without adequate braking. Implementing planned maintenance, such as periodic cleaning of cooling fins and checking electrical connections, will prevent most operational issues and extend the product's lifespan.

Scalability & Long-Term Value

The INVT GD350 AS Series is designed with scalability and long-term value in mind. Its modular design allows for the addition of optional communication cards, supporting various industrial fieldbuses like Profibus, DeviceNet, and EtherNet/IP, ensuring compatibility with evolving automation platforms and the burgeoning Industrial Internet of Things (IIoT) ecosystem. This adaptability enables seamless integration into smart factory architectures for enhanced data acquisition and predictive maintenance strategies. Furthermore, INVT's commitment to product development means that firmware updates are often available, allowing users to benefit from performance enhancements and new features without needing to replace the hardware. This forward-looking approach ensures that the GD350-075G/090P-45-AS-B remains a cost-effective and high-performing investment for years to come.

Frequently Asked Questions

What is the power range of the INVT GD350-075G/090P-45-AS-B inverter?

This inverter series covers a power range from 75kW in normal duty applications up to 90kW for heavy duty requirements. It is designed to handle significant load demands efficiently.

The dual power rating ensures flexibility for various operational scenarios, optimizing performance and component lifespan. It accommodates both standard and more demanding industrial tasks within its specified capacity.

This capability makes it suitable for a broad spectrum of industrial machinery and processes requiring robust motor control solutions.

How does the integrated braking unit benefit users?

The integrated braking unit simplifies installation by eliminating the need for external braking resistors and associated wiring. This reduces cabinet space requirements and overall system complexity.

It provides effective deceleration and stopping torque, crucial for applications with high inertia loads or frequent stopping cycles. This enhances safety and operational control.

By reducing component count and wiring, it also contributes to lower initial costs and potentially reduced maintenance over the system's lifetime.

What type of motor control does this inverter support?

The INVT GD350-075G/090P-45-AS-B supports advanced sensorless vector control for precise speed and torque regulation. It also offers traditional V/f control for simpler applications.

Sensorless vector control allows for accurate motor performance without the need for motor-mounted encoders, reducing installation complexity and cost. This is ideal for variable torque loads.

The dual control modes offer flexibility, enabling users to select the optimal control strategy based on the specific application requirements for maximum efficiency and performance.

What are the typical applications for the INVT GD350-075G/090P-45-AS-B?

This inverter is well-suited for driving pumps, fans, conveyors, extruders, and compressors in industries like water treatment, HVAC, and manufacturing. Its robust performance handles variable torque loads effectively.

Applications requiring precise speed control and dynamic response, such as machine tools or textile machinery, also benefit greatly from its advanced control algorithms.

The integrated braking unit makes it ideal for hoists, cranes, elevators, and other machinery that needs to decelerate quickly and safely under load.

How can I integrate this inverter into my existing control system?

The inverter features a standard RS485 communication port supporting Modbus RTU protocol for easy integration with PLCs and SCADA systems. Optional fieldbus modules are available for other protocols.

Ensure proper wiring of power, motor, and control circuits as per the user manual to guarantee safe and reliable operation. Motor auto-tuning is recommended for optimal performance.

Programming the inverter's parameters allows for customization to your specific application needs, including acceleration/deceleration profiles, speed references, and I/O configuration.

What is the input voltage requirement for this inverter?

The INVT GD350-075G/090P-45-AS-B operates on a 3-phase input voltage ranging from 380V to 460V. It's crucial to verify the incoming power supply matches this specification.

This voltage range is standard for many industrial power grids, facilitating easier installation and compatibility in diverse geographical locations. Always ensure the supply is stable.

Incorrect input voltage can damage the inverter, so thorough pre-installation checks are essential to prevent operational failures and ensure the longevity of the unit.

Does this inverter come with an integrated braking resistor?

Yes, the "AS-B" designation in the model number indicates that the inverter is equipped with an integrated braking unit, which includes the braking resistor. This simplifies installation.

The integrated unit provides a compact solution, saving valuable cabinet space and reducing the need for external component selection and wiring. It's ready for connection.

This feature is particularly beneficial for applications requiring dynamic braking to dissipate regenerative energy, enhancing stopping performance and system safety.

What are the operating temperature and altitude limitations?

The inverter is designed to operate within an ambient temperature range of -10°C to 40°C. Derating is required for ambient temperatures exceeding 40°C to prevent overheating.

For altitudes, the inverter is rated for operation up to 1000 meters above sea level. Operation at higher altitudes will necessitate derating due to reduced air density affecting cooling.

Adhering to these environmental specifications is crucial for maintaining optimal performance, reliability, and ensuring the inverter's rated lifespan.

What protection features are included in the GD350 AS Series?

The GD350 AS Series incorporates comprehensive protection features, including overcurrent, overvoltage, undervoltage, overload, and over-temperature protection, safeguarding both the inverter and the connected motor.

These protective functions are critical for preventing damage during abnormal operating conditions, such as short circuits or power supply fluctuations, thus ensuring system integrity.

By providing robust fault detection and response, these features minimize downtime and costly repairs, contributing to the overall reliability and economic viability of the drive system.

Can this inverter be used for basic V/f control applications?

Yes, the INVT GD350-075G/090P-45-AS-B inverter fully supports V/f control, making it suitable for applications where simple voltage-to-frequency regulation is sufficient. This includes many basic pump and fan applications.

V/f control is easy to set up and is ideal for loads that do not require precise torque control at low speeds. It offers a straightforward approach to motor speed adjustment.

While it also offers advanced vector control, the option for V/f control provides flexibility, allowing users to select the most appropriate control method for their specific needs and cost considerations.