INVT GD350-004G/5R5P-45-AS Goodrive350 AS Series Book Size Inverter 4kW to 5.5kW Dual Rating

The INVT GD350-004G/5R5P-45-AS Goodrive350 AS Series Book Size Inverter is engineered for robust performance and flexibility, offering a dual rating for 4kW and 5.5kW applications. This compact inverter boasts advanced features such as precise motor control, enhanced protection mechanisms, and a user-friendly interface, making it a superior choice for a wide range of industrial automation tasks. Its integrated dual rating design provides significant cost and space savings by accommodating varying load requirements within a single unit. The GD350 AS Series is built with cutting-edge technology to ensure reliability and efficiency, positioning it as a leading solution for demanding operational environments.

Product Specifications

| Parameter                 | Specification                                  |

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

| Model                     | GD350-004G/5R5P-45-AS                          |

| Series                    | Goodrive350 AS Series                          |

| Type                      | Book Size Inverter                             |

| Rated Power (Normal Duty) | 4kW (5.5 HP)                                   |

| Rated Power (Heavy Duty)  | 5.5kW (7.5 HP)                                 |

| Input Voltage             | 3-Phase, 380V-440V (45 is part of the code)    |

| Output Frequency          | 0-400 Hz                                       |

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

| Protection Level          | IP20                                           |

| Dimensions (H x W x D)    | Typically compact book-style form factor       |

| Communication Interfaces  | Standard RS485 (optional fieldbuses)           |

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

Core Features & Market Positioning

The INVT GD350-004G/5R5P-45-AS distinguishes itself through its innovative dual-rating capability, enabling it to operate efficiently under both normal and heavy-duty conditions without compromising performance or lifespan. This versatility significantly reduces inventory needs and application complexity for integrators and end-users. The inverter leverages INVT's advanced sensorless vector control algorithms, delivering exceptional torque performance and precise speed regulation even with fluctuating loads, a key differentiator in the competitive variable frequency drive market. Its robust design and comprehensive protection features, including overcurrent, overvoltage, and thermal protection, underscore its reliability in demanding industrial settings. The compact "book-size" form factor further enhances its market appeal by facilitating easier integration into space-constrained control panels, a growing requirement in modern automation systems.

Key Application Scenarios

This INVT GD350 AS Series inverter is ideally suited for a broad spectrum of industrial applications where precise motor control and flexibility are paramount. It excels in powering fans and pumps in HVAC systems, offering energy savings through optimized speed control. In material handling, its robust torque performance makes it suitable for conveyors and cranes. Textile machinery, packaging equipment, and printing presses also benefit from the inverter's stable operation and precise speed management. The dual-rating feature makes it particularly valuable for applications with variable load profiles, such as extruders or mixers, where it can adapt to changing operational demands efficiently.

Practical System Integration Guidance

Integrating the INVT GD350-004G/5R5P-45-AS is streamlined due to its user-friendly design and clear documentation. For power wiring, ensure the input power supply is correctly phase-connected to L1, L2, and L3 terminals, and the motor phases are connected to T1, T2, and T3. Grounding is crucial; connect the protective earth terminal securely. For communication, the standard RS485 interface allows for straightforward integration into SCADA or PLC systems using Modbus RTU protocol. Initial commissioning typically involves setting motor parameters (e.g., rated voltage, current, frequency, pole count) via the keypad or communication interface to enable optimal sensorless vector control. Basic parameter groups for motor identification and operational limits should be configured before startup to ensure safe and efficient operation.

Operation and Risk Mitigation

Safe operation of the INVT GD350-004G/5R5P-45-AS requires adherence to electrical safety standards and proper installation. Always ensure the power is disconnected before making any wiring changes and verify correct grounding to prevent electrical hazards. The inverter features comprehensive built-in protection functions, including overcurrent, overvoltage, undervoltage, overload, and overheating alarms. A common troubleshooting step for operational issues involves checking the fault code displayed on the human-machine interface (HMI). For instance, an "OL" (Overload) fault may indicate the motor is drawing too much current, requiring an inspection of the load or motor itself, or potentially switching to the heavy-duty rating if applicable and within limits. Regularly inspect ventilation openings to maintain optimal operating temperatures and prevent thermal derating or shutdowns.

Scalability & Long-Term Value

The INVT GD350 AS Series inverter offers significant long-term value through its inherent scalability and compatibility with emerging industrial trends. Its dual-rating design inherently provides a degree of scalability, allowing for adaptation to increased load demands without requiring a complete hardware replacement. The inclusion of a standard RS485 communication port facilitates easy integration into existing building management systems or industrial automation networks. For enhanced connectivity, optional communication modules for popular fieldbuses like Profibus or Ethernet/IP can be added, ensuring compatibility with a wide range of control platforms. This adaptability positions the GD350 series for integration into Industrial Internet of Things (IIoT) ecosystems, enabling remote monitoring, diagnostics, and predictive maintenance capabilities when combined with appropriate gateway devices.

Frequently Asked Questions

Q1: What is the primary advantage of the dual-rating feature on the INVT GD350-004G/5R5P-45-AS?

The dual-rating system allows this single inverter to effectively manage both lighter and heavier workloads. It can operate at 4kW for normal duty and scale up to 5.5kW for heavy-duty applications.

This flexibility reduces the need for users to stock multiple inverter models, simplifying inventory and application design. It provides cost-efficiency and space savings in control panels.

The inverter dynamically adjusts its output capacity based on the load requirements, ensuring optimal performance and energy efficiency across different operational scenarios.

Q2: How do I wire the INVT GD350 AS Series inverter for a 3-phase motor?

Connect the incoming 3-phase AC power supply to the L1, L2, and L3 terminals on the inverter's input side. Ensure the correct voltage range (380-440V) is applied.

The three output terminals, T1, T2, and T3, are then connected directly to the corresponding phases of your 3-phase motor. Proper phase rotation is critical for motor direction.

Always ensure a robust earth connection to the designated ground terminal on the inverter and motor for safety and to comply with electrical codes.

Q3: What are the typical applications for the INVT GD350-004G/5R5P-45-AS?

This inverter is well-suited for variable torque applications like fans and pumps, where speed control directly impacts energy consumption.

It is also effective in constant torque applications such as conveyors, mixers, and extruders, especially when utilizing its sensorless vector control for precise speed and torque.

The dual-rating feature makes it ideal for systems that experience significant load variations, ensuring reliable operation across the spectrum of demands.

Q4: What type of motor control does the INVT GD350 AS Series offer?

The inverter primarily utilizes advanced sensorless vector control, which provides high-performance torque and speed regulation without requiring a motor encoder.

It also supports traditional V/f (Voltage/Frequency) control, offering a simpler control method suitable for basic applications where precise torque response is not critical.

This combination of control modes enhances its versatility, allowing it to be optimally configured for a wide range of motor types and application requirements.

Q5: How can I connect the INVT GD350 inverter to a PLC or SCADA system?

The inverter comes standard with an RS485 communication port, which supports the Modbus RTU protocol, a widely adopted standard in industrial automation.

This RS485 port allows for simple serial communication setup with most PLCs and SCADA systems, enabling remote monitoring and control of inverter parameters.

For more advanced networking needs, optional communication modules for fieldbuses like Profibus, DeviceNet, or Ethernet/IP can be purchased and installed, ensuring broad system compatibility.

Q6: What are the key protection features of the GD350-004G/5R5P-45-AS?

The inverter incorporates robust protection against overcurrent, ensuring that motor and drive are not damaged by excessive current draw.

It also provides protection against overvoltage and undervoltage conditions, maintaining stable operation within specified voltage limits.

Furthermore, it includes overload protection to prevent damage from sustained high loads and thermal protection to safeguard the drive from overheating.

Q7: How do I perform motor auto-tuning on this inverter?

To perform auto-tuning, first ensure the motor is connected and powered off. Access the parameter settings menu on the inverter's keypad or via communication.

Navigate to the auto-tuning function, typically found within the motor parameter settings. Initiate the static or dynamic auto-tuning process as instructed by the manual.

The inverter will then run the motor briefly at different speeds and loads to measure its characteristics, optimizing control parameters for best performance.

Q8: What does the 'AS' in the INVT GD350-004G/5R5P-45-AS model number signify?

The 'AS' typically denotes that this particular model is part of INVT's AS series, which often signifies specific advanced features or a particular design philosophy for that product line.

It might relate to enhanced control algorithms, a specific form factor like the "Book Size," or a particular set of communication capabilities integrated as standard.

Consulting the detailed product datasheet for the AS series is recommended for a precise definition of what 'AS' represents in this specific model context.

Q9: Can this inverter be used with single-phase motors?

The INVT GD350-004G/5R5P-45-AS is designed to operate 3-phase AC induction motors. It requires a 3-phase input power supply to function correctly.

Using this inverter with a single-phase motor is not recommended and would require specific external converters or phase-splitting devices, potentially voiding warranties and performance guarantees.

For single-phase motor applications, INVT offers different inverter series specifically designed for single-phase output.

Q10: What is the IP rating of the Goodrive350 AS Series book size inverter?

The INVT GD350 AS Series book size inverter typically has an IP20 rating. This means it offers protection against solid objects greater than 12.5mm in diameter.

An IP20 rating indicates that the inverter is designed for use in environments where it is protected from direct contact and is not exposed to water or dust ingress.

Therefore, it is generally intended for installation within control cabinets or enclosures to ensure adequate protection against environmental factors and physical contact.