INVT GD350-110P-45-NS-B Goodrive350 NS Series Inverter 110kW Pump Special with Built-in Braking Unit

The INVT GD350-110P-45-NS-B Goodrive350 NS Series Inverter, a 110kW pump special with a built-in braking unit, stands as a robust solution for demanding industrial applications requiring precise motor control and efficient energy management. This inverter excels in pump applications by offering advanced features such as precise torque control, a built-in braking unit for rapid deceleration, and excellent energy-saving capabilities. Its core technical specifications include a rated power of 110kW, an input voltage range suitable for typical industrial grids, and output characteristics designed for optimal pump performance. The NS Series designation signifies its specialized design for pump systems, ensuring enhanced reliability and operational efficiency in variable load environments.

Product Specifications

| Feature                 | Specification                                 |

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

| Model                   | GD350-110P-45-NS-B                            |

| Series                  | Goodrive350 NS Series                         |

| Rated Power             | 110 kW (150 HP)                               |

| Input Voltage           | 3-Phase, 380V-460V (customizable options)     |

| Output Frequency        | 0-400 Hz                                      |

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

| Braking Unit            | Built-in (Dynamic Braking)                    |

| Protection Rating       | IP20 (standard), IP54 (optional enclosure)    |

| Cooling                 | Forced Air Cooling                            |

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

| Dimensions (approx.)    | Varies by enclosure, consult datasheet        |

| Weight (approx.)        | Varies by enclosure, consult datasheet        |

Core Features & Market Positioning

The INVT GD350-110P-45-NS-B is engineered with sophisticated sensorless vector control, enabling precise speed and torque regulation essential for variable torque loads like pumps, even without encoder feedback. This technology, combined with its integrated dynamic braking unit, allows for rapid and controlled deceleration, preventing water hammer and protecting system components. Its market positioning is firmly established as a high-performance, cost-effective solution for pump control in sectors demanding energy efficiency and operational reliability. Compared to standard inverters, the NS Series' pump-specific algorithms and integrated braking offer a distinct advantage in specialized applications, reducing the need for external braking resistors and simplifying system design. The robust construction and advanced thermal management ensure longevity even in harsh industrial environments.

Key Application Scenarios

The INVT GD350-110P-45-NS-B is ideally suited for a wide array of industrial pumping applications where energy savings and precise control are paramount. This includes municipal water supply and wastewater treatment systems, where maintaining stable pressure and flow rates while minimizing energy consumption is critical. It is also highly effective in industrial process water circulation, HVAC systems for building climate control, and irrigation systems in agriculture. The inverter's ability to handle variable loads efficiently makes it a superior choice for systems with fluctuating demand, ensuring optimal performance and reduced wear on pump motors. Its built-in braking unit is particularly beneficial in applications where pumps need to stop quickly and safely, such as in emergency shutdown scenarios or during maintenance.

Practical System Integration Guidance

Integrating the INVT GD350-110P-45-NS-B into existing systems is streamlined due to its flexible input/output configurations and standard communication protocols. For pump applications, proper motor parameter auto-tuning is crucial for optimal sensorless vector control performance; this process typically involves running a brief self-calibration routine upon initial setup. Wiring should strictly follow the guidelines in the user manual, ensuring correct connection of power terminals, control signals, and the braking unit. When using the built-in braking unit, ensure the braking resistor is adequately sized and rated for the expected duty cycle to prevent overheating. For advanced integration, the inverter supports common industrial fieldbus protocols, allowing seamless communication with SCADA systems and PLCs for remote monitoring and control, enhancing overall system automation and diagnostics.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD350-110P-45-NS-B relies on adherence to operational guidelines and understanding of its fault management system. Prior to energization, verify all connections and ensure the motor parameters are correctly configured. During operation, monitor motor temperatures and inverter status through the keypad or communication interface to preempt potential issues. Common faults, such as overcurrent (OC) or overvoltage (OV), can often be mitigated by adjusting acceleration/deceleration ramps, ensuring proper motor selection, or verifying input power quality. The inverter's diagnostic codes provide valuable insights into system anomalies; for instance, a "Fan Fault" code indicates a potential issue with the internal cooling fan, requiring immediate inspection to prevent overheating. Always consult the detailed user manual for specific fault code interpretations and recommended corrective actions.

Scalability & Long-Term Value

The Goodrive350 NS Series is designed with scalability and long-term value in mind, supporting integration into modern industrial automation frameworks. Its compatibility with various industrial communication protocols, such as Modbus RTU, facilitates seamless integration into IIoT platforms for predictive maintenance and advanced analytics. This allows for remote monitoring of key performance indicators, energy consumption, and operational status, enabling proactive maintenance scheduling and optimization of pump system efficiency. The modular design and availability of firmware updates ensure that the inverter can adapt to evolving operational requirements and technological advancements, extending its useful lifespan and maximizing return on investment. The robust construction also contributes to a long operational life with minimal maintenance, reducing total cost of ownership.

Frequently Asked Questions

What is the primary advantage of the INVT GD350-110P-45-NS-B for pump applications?

The primary advantage lies in its specialized pump control algorithms and integrated braking unit. This combination ensures precise speed and torque management, crucial for variable loads, and provides controlled deceleration.

This design minimizes water hammer and protects system components, enhancing operational reliability and longevity.

It offers superior energy efficiency by precisely matching motor speed to demand, leading to significant cost savings.

How does the built-in braking unit function in the GD350-110P-45-NS-B?

The built-in braking unit allows the motor to decelerate rapidly and safely when power is reduced or removed. It dissipates the motor's kinetic energy as heat through a connected braking resistor.

This prevents overvoltage during deceleration and enables quick stopping, which is vital in many pump system scenarios.

Proper sizing and selection of the braking resistor are essential for effective operation and to prevent component damage from excessive heat.

What are the typical fault codes for this INVT inverter series and their meaning?

Common fault codes include overcurrent (OC) and overvoltage (OV), indicating issues with motor load or power supply. A "Fan Fault" code signifies a problem with the inverter's cooling system.

Other codes might relate to motor phase loss, communication errors, or ground faults, each pointing to specific system anomalies.

Referencing the product's manual is crucial for accurate interpretation of each fault code and for implementing the correct troubleshooting steps.

Can the INVT GD350-110P-45-NS-B be integrated with existing SCADA or PLC systems?

Yes, the GD350-110P-45-NS-B supports standard industrial communication protocols like Modbus RTU. This enables seamless integration with SCADA and PLC systems for monitoring and control.

Integration allows for remote operation, real-time data acquisition, and sophisticated system diagnostics.

This connectivity is essential for implementing IIoT strategies, enabling predictive maintenance and overall operational optimization.

What is the power rating and input voltage range for the INVT GD350-110P-45-NS-B?

The INVT GD350-110P-45-NS-B has a rated power of 110 kW (approximately 150 HP). This capacity is suitable for many industrial pump applications.

The input voltage range is typically 3-phase, 380V to 460V, accommodating common industrial power grids.

Specific voltage tolerance and frequency range details can be found in the product's datasheet for precise application planning.

What type of motor control does the Goodrive350 NS Series inverter employ?

The Goodrive350 NS Series primarily utilizes sensorless vector control for its pump applications. This advanced method allows for precise motor speed and torque regulation without the need for motor-mounted encoders.

It also supports traditional V/f control, offering flexibility depending on the specific application requirements and desired performance.

Sensorless vector control is particularly advantageous for variable torque loads like pumps, ensuring efficient operation and accurate output.

What are the environmental considerations for installing this inverter?

The standard inverter has an IP20 protection rating, requiring installation in a clean, dry environment or within a suitable enclosure. An optional IP54 enclosure is available for protection against dust and water splashes.

The operating ambient temperature range is typically -10°C to +40°C, with potential derating required at higher temperatures.

Adequate ventilation is crucial to maintain optimal operating temperatures and ensure the longevity of internal components.

How is the energy saving capability of this inverter achieved in pump systems?

Energy savings are achieved by precisely matching the motor speed to the actual system demand using variable frequency drive technology. Pumps operating at lower speeds consume significantly less power.

The advanced control algorithms in the GD350-110P-45-NS-B optimize motor efficiency across a wide range of operating speeds.

By avoiding direct online starts and implementing soft starts, the inverter reduces peak inrush currents and mechanical stress, further contributing to energy efficiency and equipment lifespan.

What is the role of the auto-tuning function during commissioning?

The auto-tuning function calibrates the inverter to the specific parameters of the connected motor. This process is essential for optimizing the performance of sensorless vector control.

It allows the inverter to accurately estimate motor characteristics like resistance and inductance, ensuring precise torque and speed regulation.

Performing auto-tuning upon initial setup is a critical step for achieving optimal efficiency, responsiveness, and stability in pump applications.

What are the benefits of using an inverter with a built-in braking unit versus an external one?

A built-in braking unit simplifies system design and installation by eliminating the need for external braking components. This reduces wiring complexity and saves valuable cabinet space.

It often offers a more integrated and cost-effective solution for applications requiring controlled deceleration or rapid stopping.

The integrated nature ensures seamless communication and operation between the inverter and the braking circuitry, enhancing overall system reliability.