INVT GD350-055G/075P-45-NS Goodrive350 NS Series Inverter 55kW to 75kW Engineering Grade Drive

The INVT GD350-055G/075P-45-NS Goodrive350 NS Series Inverter is a high-performance variable frequency drive engineered for demanding industrial applications, offering precise motor control from 55kW to 75kW. This advanced drive boasts exceptional efficiency, robust protection features, and flexible communication options, making it a superior choice for optimizing energy consumption and process control across various sectors. Its inherent reliability and advanced features position it as a leading solution for modern industrial automation.

Product Specifications

| Parameter           | Value                                      |

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

| Model               | GD350-055G/075P-45-NS                      |

| Power Rating (kW)   | 55kW (055G) / 75kW (075P)                  |

| Input Voltage       | 3-Phase 400V-480V                          |

| Output Frequency    | 0-650 Hz                                   |

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

| Protection Level    | IP20 (Standard)                            |

| Ambient Temp.       | -20°C to +50°C (derating above 40°C)       |

| Braking Unit        | Integrated (depending on specific model)   |

| Communication       | RS485 (Modbus), Optional fieldbuses        |

| Dimensions (H x W x D) | Varies by power rating (refer to datasheet) |

Core Features & Market Positioning

The INVT Goodrive350 NS Series distinguishes itself through its advanced sensorless vector control, enabling precise speed and torque regulation even without motor encoders, a critical advantage in many industrial settings. This capability significantly enhances application flexibility and reduces system complexity and cost. The drive's robust design incorporates multiple protection functions, including overcurrent, overvoltage, undervoltage, and thermal overload, ensuring operational safety and equipment longevity. Market positioning for the GD350-055G/075P-45-NS is firmly rooted in its engineering-grade performance, offering a compelling blend of sophisticated control algorithms, high reliability, and energy-saving potential, rivaling premium drives in its class while providing exceptional value.

Key Application Scenarios

The INVT GD350-055G/075P-45-NS is ideally suited for a wide array of industrial applications where robust performance and energy efficiency are paramount. It excels in powering large pumps and fans in HVAC systems, water treatment plants, and industrial ventilation, where precise flow and pressure control can lead to substantial energy savings. The drive's advanced vector control is also highly beneficial for material handling equipment such as conveyors, elevators, and cranes, providing smooth acceleration and deceleration, accurate load positioning, and enhanced operational safety. Furthermore, its high starting torque and dynamic response make it an excellent choice for machine tools, extruders, and other process machinery requiring precise speed and torque management under varying load conditions.

Practical System Integration Guidance

Integrating the INVT GD350-055G/075P-45-NS into existing industrial systems is streamlined by its user-friendly interface and versatile connectivity. Proper installation involves ensuring adequate ventilation to maintain optimal operating temperatures, especially in demanding environments. Wiring should strictly adhere to local electrical codes and the manufacturer's guidelines, paying close attention to grounding, power input, and motor output connections to prevent electrical noise and ensure safety. For communication, the integrated RS485 port supports Modbus RTU protocol, allowing seamless integration with PLCs and SCADA systems for remote monitoring and control. Parameter configuration, particularly for sensorless vector control tuning, is crucial for achieving optimal performance; engineers can leverage the drive's intuitive keypad or INVT's dedicated software tools for efficient commissioning and fine-tuning of motor parameters and control settings.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD350-055G/075P-45-NS requires adherence to operational best practices and an understanding of its protective features. Regular visual inspections for dust accumulation and damage are recommended to prevent overheating and ensure reliable performance. In case of faults, the drive provides comprehensive diagnostic information through its display and communication interfaces, detailing error codes that help pinpoint the root cause. Common fault codes, such as 'OC' (Overcurrent), 'OV' (Overvoltage), and 'OH' (Overheat), indicate specific protective shutdowns that necessitate investigation into motor load, power supply stability, or cooling efficiency. Implementing appropriate braking resistors, where required by the application's regenerative load, is crucial for preventing overvoltage faults during deceleration.

Scalability & Long-Term Value

The INVT Goodrive350 NS Series offers excellent scalability and long-term value, supporting industrial growth and digital transformation initiatives. Compatibility with a wide range of standard industrial motors ensures flexibility during upgrades or replacements. The drive's modular design and support for various fieldbus communication protocols, such as Profibus, DeviceNet, and Ethernet/IP, facilitate seamless integration into existing or future automated systems and IIoT platforms, enabling advanced data collection and analysis. This forward-looking design ensures that the INVT GD350-055G/075P-45-NS remains a relevant and valuable asset, capable of evolving with changing operational demands and contributing to enhanced operational intelligence and predictive maintenance strategies.

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Frequently Asked Questions (FAQs)

What is the primary function of the INVT GD350-055G/075P-45-NS inverter?

The INVT GD350-055G/075P-45-NS inverter's core function is to control the speed and torque of AC induction motors. It achieves this by precisely adjusting the frequency and voltage supplied to the motor. This allows for significant energy savings and improved process control in various industrial applications.

This drive offers advanced control algorithms, notably sensorless vector control. This capability ensures high precision and dynamic response without requiring an encoder. It is crucial for applications needing accurate speed or torque regulation under fluctuating loads.

The unit's primary role is to optimize motor performance and reduce energy consumption. By matching motor speed to actual demand, it prevents wasted energy, leading to lower operational costs and a reduced environmental footprint.

What are the key technical advantages of the Goodrive350 NS Series?

Key advantages include its robust sensorless vector control for precise motor management. This feature enhances performance and reduces system complexity. The drive also features comprehensive protection functions.

The Goodrive350 NS Series offers excellent energy efficiency, particularly in variable load applications like pumps and fans. Its advanced control logic minimizes power consumption while maintaining optimal output.

Furthermore, the drive is engineered for reliability and durability in harsh industrial environments. Its compact design and flexible communication options simplify integration and system expansion.

Can the INVT GD350-055G/075P-45-NS be used for high-power applications?

Yes, this model is designed for high-power industrial applications, with ratings up to 75kW. It supports a 3-phase 400V-480V input voltage, making it suitable for demanding industrial power grids.

The drive's robust construction and advanced cooling mechanisms ensure stable operation even under continuous heavy loads. Its power output range makes it ideal for large machinery and systems requiring significant motor power.

Its engineering-grade design ensures reliable performance and longevity in critical industrial processes. This makes it a dependable choice for powering substantial equipment and ensuring uninterrupted operations.

What types of motors can the INVT GD350-055G/075P-45-NS control?

The INVT GD350-055G/075P-45-NS is primarily designed to control standard 3-phase AC induction motors. It supports a wide range of motor types commonly found in industrial settings.

Its advanced sensorless vector control algorithm allows it to precisely manage motor speed and torque. This is effective even for motors without encoder feedback, simplifying installation.

The drive is also compatible with various motor frame sizes and power ratings within its specified range, offering broad applicability across different equipment and machinery.

How does the sensorless vector control of the Goodrive350 NS Series benefit users?

Sensorless vector control provides precise speed and torque regulation without needing a motor-mounted encoder. This reduces installation complexity and cost. It ensures smooth operation and excellent dynamic response.

This advanced control method allows the drive to accurately control motor speed under varying load conditions. It is crucial for applications requiring consistent performance, like pumps, fans, and conveyors.

Users benefit from enhanced energy efficiency and improved process repeatability. The precise motor control leads to better product quality and reduced wear on mechanical components.

What communication protocols are supported by this inverter?

The INVT GD350-055G/075P-45-NS natively supports the Modbus RTU protocol via its integrated RS485 interface. This is standard for industrial automation.

Beyond RS485, the drive is designed to be compatible with a variety of fieldbus systems. Optional communication modules allow integration with protocols like Profibus, DeviceNet, and CANopen.

Support for these protocols enables seamless integration into existing SCADA systems and PLC networks. This allows for remote monitoring, control, and data exchange in automated environments.

What are the typical application areas for the GD350-055G/075P-45-NS?

This inverter is widely used in pump and fan applications, including HVAC, water supply, and industrial ventilation systems. It optimizes flow and pressure control for energy savings.

It is also a strong choice for material handling equipment like conveyors, elevators, and cranes, offering smooth starts and stops. Its precise torque control is beneficial for textile machinery and extruders.

Machine tools, extruders, and other process industries also benefit from its robust performance and accurate speed regulation under dynamic load conditions.

How do I ensure proper installation and wiring of the INVT GD350-055G/075P-45-NS?

Proper installation requires adequate ventilation to keep the drive within its operating temperature range. Ensure the mounting location is clean and free from excessive dust or moisture.

Wiring must strictly follow the installation manual and local electrical codes. Pay close attention to correct grounding of the drive and motor, as well as proper shielding of motor cables to prevent interference.

It is recommended to use appropriately sized cables for power input and motor output. Following the manual's guidance on connections for control signals and communication is also essential for safe and reliable operation.

What are common troubleshooting steps for fault codes on this drive?

When a fault code appears, consult the drive's user manual for a detailed explanation of the specific code. For instance, 'OC' (Overcurrent) might indicate a motor short, excessive load, or rapid acceleration.

Troubleshooting steps typically involve checking the motor for issues, verifying the load conditions, and ensuring the acceleration time is set appropriately. For 'OV' (Overvoltage), check the DC bus voltage during deceleration and consider a braking resistor if needed.

Always disconnect power and allow the drive to discharge before performing any physical checks or maintenance. If the issue persists, contact technical support or a qualified service technician.

What is the long-term value proposition of the Goodrive350 NS Series?

The Goodrive350 NS Series offers long-term value through its energy-saving capabilities, reducing operational costs significantly over its lifespan. Its robust design ensures high reliability and a long service life.

The drive's compatibility with various motor types and its support for multiple communication protocols ensure it can be integrated into evolving automation systems. This adaptability protects investment.

Furthermore, its contribution to precise process control can enhance product quality and reduce waste, adding to its overall economic and operational benefits for businesses.