INVT GD350-045G/055P-45-NS Goodrive350 NS Series Inverter 45kW to 55kW High Capacity System

The INVT GD350-045G/055P-45-NS Goodrive350 NS Series Inverter is a high-capacity variable frequency drive designed for demanding industrial applications, offering power ratings from 45kW to 55kW. This robust unit excels in motor speed control, providing significant energy savings and enhanced process efficiency. Its advanced features include precise vector control, a wide voltage range, and comprehensive protection functions, positioning it as a superior solution for heavy-duty machinery and complex automation systems. The GD350-45-NS series is engineered for reliability and performance in challenging environments, making it a key component for modern industrial operations seeking to optimize performance and reduce operational costs.

Product Specifications

| Parameter          | Specification                                     |

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

| Series             | Goodrive350 NS                                    |

| Model              | GD350-045G/055P-45-NS                             |

| Power Range        | 45kW to 55kW                                      |

| Input Voltage      | 3-Phase, 380V/400V/415V/440V AC                   |

| Output Voltage     | Matches Input Voltage                             |

| Frequency Range    | 0-300Hz                                           |

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

| Protection         | Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault, Overheat, etc. |

| Communication      | RS485 (Standard), Optional Fieldbus modules       |

| Mounting           | Wall-mounted or Cabinet Installation              |

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

| Humidity           | <95% RH (Non-condensing)                          |

Core Features & Market Positioning

The INVT GD350-45-NS inverter distinguishes itself through its advanced dual-core DSP control architecture, enabling superior performance in dynamic response and precision speed regulation. This technology is crucial for applications requiring rapid load changes or strict adherence to speed profiles. Its enhanced thermal management system, featuring optimized heatsink design and intelligent fan control, ensures stable operation even under continuous heavy loads, a significant advantage over less robust competitors. The inverter's robust EMC design minimizes electromagnetic interference, making it suitable for installation in sensitive industrial environments without compromising system integrity. This focus on high-performance control, thermal resilience, and electromagnetic compatibility firmly positions the Goodrive350 NS series as a premium, reliable choice for critical industrial automation.

Key Application Scenarios

The high capacity and advanced control of the INVT GD350-045G/055P-45-NS inverter make it exceptionally well-suited for a range of demanding industrial sectors. It is an ideal solution for large industrial fans and pumps, where precise flow or pressure control is paramount and significant energy savings can be realized by matching motor speed to demand. In material handling systems, such as conveyor belts and cranes, its dynamic performance ensures smooth acceleration and deceleration, protecting mechanical components and improving throughput. The inverter also finds critical application in textile machinery, plastic extrusion equipment, and metal processing machinery, where consistent speed and torque are essential for product quality and process stability. Its adaptability to various motor types, including asynchronous and permanent magnet synchronous motors, further broadens its application scope.

Practical System Integration Guidance

Integrating the INVT GD350-45-NS inverter into existing industrial systems is streamlined by its thoughtful design. For power wiring, ensure compliance with local electrical codes, using appropriately sized conductors for the 45kW to 55kW rating and ensuring secure connections to the line and motor terminals. Control wiring should utilize shielded cables for digital and analog I/O signals to prevent noise interference, particularly when extending signals over longer distances. Programming the inverter often involves setting up key parameters such as motor data (pole count, rated power, rated speed), acceleration/deceleration times, and overcurrent limits. For instance, configuring the inverter for a pump application might involve setting up a PID controller within the drive to maintain a constant pressure by adjusting fan speed. Utilizing the integrated RS485 port with Modbus RTU protocol allows for seamless integration into SCADA systems or PLC networks for remote monitoring and control.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD350-45-NS inverter hinges on adherence to proper procedures and understanding of its protective features. Before powering up, always verify correct wiring and ensure the motor is mechanically coupled and free to rotate. During commissioning, gradually ramp up the motor speed while monitoring for unusual noise or vibration. The inverter features numerous protection functions, including Overload (OL), Overvoltage (OV), Undervoltage (UV), and Short Circuit (SC) faults, which will trigger a shutdown and display a corresponding code. For example, if an Overload fault (OL) occurs, it indicates the motor is drawing more current than its rated capacity; this could be due to an undersized motor, excessive mechanical load, or incorrect motor parameter settings. Regular maintenance, such as cleaning dust from the heatsink and checking terminal connections, is crucial to prevent overheating and potential component failure.

Scalability & Long-Term Value

The INVT Goodrive350 NS series offers excellent scalability and long-term value for evolving industrial needs. Its modular design and compatibility with various communication protocols, including Modbus RTU and optional fieldbus modules (e.g., Profibus, DeviceNet), facilitate integration into sophisticated distributed control systems and the broader Industrial Internet of Things (IIoT) ecosystem. This ensures that the inverter can be seamlessly incorporated into smart factory initiatives for enhanced data collection, predictive maintenance, and remote diagnostics. For facilities looking to upgrade existing motor control systems, the GD350-45-NS provides a powerful and energy-efficient replacement, capable of controlling a wide range of motor types and offering advanced features that can drive further operational improvements and cost savings over its extended lifespan.

Frequently Asked Questions

What is the typical power factor of the INVT GD350-45-NS?

The INVT GD350-45-NS inverter typically operates with a high power factor, often exceeding 0.95 at full load. This efficiency minimizes reactive power demand, leading to reduced electricity bills. The advanced control algorithms employed by the Goodrive350 series actively work to maintain an optimal power factor across varying load conditions.

This high power factor is a direct benefit of the inverter's sophisticated internal circuitry and control strategies. It helps in reducing line current for a given power output, which can also allow for the use of smaller supply conductors and switchgear, contributing to overall system cost savings.

Maintaining a high power factor is crucial for industrial facilities to avoid penalties from utility companies for poor power quality. The GD350-45-NS's design inherently addresses this concern, providing a more efficient and cost-effective power solution.

How do I connect multiple INVT GD350-45-NS inverters for a single application?

Connecting multiple INVT GD350-45-NS inverters for a single application is typically achieved through a master-slave configuration or by utilizing synchronous control functions. In a master-slave setup, one inverter acts as the master, controlling the speed of multiple "slave" inverters, which then drive individual motors.

Alternatively, advanced applications might leverage the inverter's communication interfaces, such as RS485, to synchronize the operation of multiple drives. This ensures that multiple motors, even if driven by separate inverters, operate in perfect harmony, essential for processes like multi-motor extruders or coordinated material handling.

Careful planning of the communication network, including addressing and termination, is essential for reliable multi-inverter operation. The specific configuration will depend on the application's requirements for synchronization accuracy and control methodology.

What are the common fault codes for the INVT GD350-45-NS and their meanings?

Common fault codes for the INVT GD350-45-NS include OL (Overload), OV (Overvoltage), and UV (Undervoltage). An OL fault indicates that the motor is drawing excessive current, often due to mechanical resistance or incorrect motor parameters. OV and UV faults signal that the input AC supply voltage is outside the inverter's acceptable operating range.

Other frequent codes might include SC (Short Circuit) at the output, which requires immediate shutdown and inspection of motor wiring, and OH (Overheating), indicating that the internal heatsink temperature has exceeded its safe limit, often due to insufficient ventilation or a very high ambient temperature.

Troubleshooting these faults involves a systematic approach: verifying motor nameplate data against inverter settings, checking for mechanical binding, ensuring proper ventilation, and confirming the stability of the incoming power supply. Always consult the product manual for a comprehensive list and specific remedies.

Can the INVT GD350-045G/055P-45-NS be used with permanent magnet synchronous motors (PMSM)?

Yes, the INVT GD350-45-NS inverter is fully capable of controlling permanent magnet synchronous motors (PMSM). It supports advanced vector control modes that are specifically optimized for PMSM drives, enabling highly efficient and precise operation.

Utilizing PMSMs with the GD350-45-NS inverter can lead to even greater energy savings and improved dynamic performance compared to standard induction motors. This combination is ideal for applications demanding high efficiency and superior torque control at low speeds.

To ensure optimal performance, it is crucial to accurately input the PMSM's specific parameters into the inverter during the commissioning phase, as detailed in the INVT product manual. This ensures the inverter can properly commutate and control the motor's magnetic field.

What is the maximum ambient temperature for the INVT GD350-45-NS?

The INVT GD350-45-NS inverter is rated for operation in ambient temperatures between -10°C and +40°C. Beyond 40°C, a derating of the inverter's output capacity is required to prevent overheating and ensure reliable operation and longevity.

The extent of derating depends on the specific ambient temperature and the load profile. For instance, operating at 50°C might require derating the 45kW unit to a lower effective output power to stay within thermal limits.

Adequate ventilation is paramount when operating the inverter close to its maximum rated temperature. Ensuring sufficient airflow around the unit, especially if installed in an enclosure, is critical for maintaining performance and preventing premature component failure.

How can I program the INVT GD350-45-NS for a specific application?

Programming the INVT GD350-45-NS involves setting various parameters through its keypad or via a connected software tool. Key initial steps include inputting motor nameplate data such as voltage, current, power, frequency, and RPM for accurate auto-tuning.

Subsequent programming focuses on application-specific settings, such as acceleration and deceleration ramps, speed limits, and the type of control (V/f or vector control). Digital and analog I/O terminals also need to be configured for start/stop commands, speed references, and feedback signals.

For complex applications, utilize the built-in PID controller for closed-loop process control or connect external devices via communication ports like RS485 for integration into larger automation systems. Always refer to the comprehensive user manual for detailed parameter descriptions.

What are the communication capabilities of the INVT GD350-45-NS?

The INVT GD350-45-NS inverter comes standard with an RS485 communication port, supporting the Modbus RTU protocol. This allows for seamless integration into industrial networks for remote monitoring, parameter adjustment, and control.

Beyond the standard RS485, the series offers optional communication modules for various industrial fieldbus protocols, such as Profibus DP, DeviceNet, EtherNet/IP, and Modbus TCP. This versatility ensures compatibility with a wide range of existing automation architectures.

These communication capabilities are essential for modern smart factories, enabling data exchange for SCADA systems, PLCs, and IIoT platforms, facilitating advanced diagnostics, predictive maintenance, and centralized operational management.

What types of motors can be driven by the INVT GD350-45-NS?

The INVT GD350-45-NS inverter is designed to drive a broad spectrum of AC motors, including standard three-phase asynchronous induction motors and permanent magnet synchronous motors (PMSM). Its flexible control modes cater to the specific requirements of each motor type.

The inverter offers both Volts-per-Hertz (V/f) control and advanced vector control algorithms. Vector control, especially when applied to PMSM or sophisticated induction motors, provides superior speed and torque regulation, crucial for high-performance applications.

This adaptability ensures that users can leverage the GD350-45-NS with their existing motor inventory or select the most efficient motor type for new installations, maximizing performance and energy savings across diverse applications.

What safety features are integrated into the INVT GD350-45-NS?

The INVT GD350-45-NS integrates comprehensive safety features, including robust overload protection, which prevents motor damage by monitoring current draw. It also features overvoltage and undervoltage protection to safeguard against unstable power supply conditions.

Additional safety functions include short-circuit protection at the output to prevent damage to the inverter and motor in case of a fault. The unit also incorporates overheating protection for its internal components and often a safe torque off (STO) function, which is a crucial safety measure for emergency stops.

These integrated safety mechanisms significantly enhance operational reliability and protect both personnel and equipment from potential hazards associated with motor control systems.

How do I perform an auto-tuning on the INVT GD350-45-NS?

Performing an auto-tune on the INVT GD350-45-NS is a critical step for achieving optimal motor performance, especially when using vector control. The process typically involves accessing the inverter's parameter menu and selecting the "Motor Auto-tuning" function.

Before initiating the auto-tune, ensure the motor is disconnected from the load and properly wired to the inverter. The inverter will then send a series of test signals to the motor to measure its electrical characteristics, such as resistance, inductance, and inertia.

Once the auto-tuning process is complete, the inverter stores the motor parameters, allowing for precise speed and torque control. It is recommended to perform auto-tuning whenever a different motor is connected or if performance issues arise.