INVT GD27-004G-4-B Goodrive27 Performance Inverter 4kW Three Phase 400V Control Stage B

The INVT GD27-004G-4-B Goodrive27 Performance Inverter stands as a robust solution for demanding industrial applications, delivering precise motor control and enhanced energy efficiency. This 4kW, three-phase, 400V inverter, categorized under Control Stage B, offers a compelling blend of advanced features and operational reliability. Its high-performance vector control algorithms ensure superior torque response and speed accuracy, making it ideal for variable torque loads and applications requiring dynamic performance. The GD27 series excels in challenging environments, boasting a compact design and advanced thermal management for extended operational life. With a focus on user-friendly commissioning and seamless integration, this inverter is engineered to optimize production processes across a wide spectrum of industries.

Product Specifications

| Parameter               | Specification                                 |

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

| Model                   | GD27-004G-4-B                                 |

| Rated Power             | 4kW                                           |

| Input Voltage           | Three Phase 400V                              |

| Control Stage           | B                                             |

| Output Frequency Range  | 0-3000 Hz                                     |

| Overload Capacity       | 150% for 60s, 180% for 10s                    |

| Protection Grade        | IP20                                          |

| Mounting                | Wall or DIN rail mounting                     |

| Communication Options   | RS485 (Modbus RTU standard)                   |

| Operating Temperature   | -10°C to +50°C (derating above 40°C)          |

| Dimensions (W x H x D)  | 173mm x 282mm x 170mm                         |

Core Features & Market Positioning

The INVT GD27-004G-4-B distinguishes itself through its advanced sensorless vector control, enabling precise speed and torque regulation even without motor feedback. This performance characteristic positions it as a competitive option for applications typically requiring encoders. Its robust overload handling capabilities ensure uninterrupted operation during transient load peaks, a critical factor in many industrial settings. The inverter's integrated dynamic braking unit provides rapid deceleration, enhancing safety and process control. Furthermore, its flexible programmable I/O and communication options, including standard Modbus RTU, facilitate straightforward integration into existing automation systems and SCADA networks, underscoring its market relevance for both new installations and system upgrades.

Key Application Scenarios

This 4kW three-phase inverter finds extensive application in process industries and manufacturing, particularly where precise speed and torque control are paramount. It is highly suitable for driving pumps and fans, where its V/f control and sensorless vector control can significantly improve energy savings by matching motor speed to system demand. The GD27 series is also a strong choice for conveyors, extruders, and machine tools, applications that benefit from its high starting torque and accurate speed holding. Its robust design and protection features make it reliable in demanding environments such as textile machinery, chemical processing plants, and water treatment facilities. The 400V rating ensures compatibility with standard industrial power supplies in these sectors.

Practical System Integration Guidance

Integrating the INVT GD27-004G-4-B into an industrial system is streamlined by its user-friendly interface and comprehensive documentation. Proper wiring is crucial: ensure that the input power is correctly connected to L1, L2, L3 terminals, and the motor phases to U, V, W. Earth grounding is essential for safety and electromagnetic compatibility. For communication, connect the RS485 A/B lines to the designated terminals, typically D+ and D- on the inverter and the master controller. Commissioning involves configuring motor parameters (pole number, rated power, rated voltage, rated frequency, rated speed, rated current) via the keypad or through software tools like INVT's Drive Tool. Setting control modes (e.g., V/f, Sensorless Vector) and adjusting acceleration/deceleration ramps are key steps for optimal performance tailored to the specific load.

Operation and Risk Mitigation

Operating the INVT GD27-004G-4-B requires adherence to safety protocols. Always ensure power is isolated before making any wiring changes or performing maintenance. The inverter's overload protection is designed to prevent damage, but continuous operation at or beyond rated capacity will trigger a fault. Common fault codes, such as E.OC (Overcurrent) or E.OL (Overload), indicate issues that need immediate attention, often related to motor load, acceleration times, or parameter settings. Ensure adequate ventilation around the unit to prevent overheating, especially in higher ambient temperatures, by respecting the specified derating above 40°C. Regular inspection of power connections and motor windings can prevent many potential operational disruptions.

Scalability & Long-Term Value

The INVT GD27-004G-4-B offers significant scalability and long-term value through its compatibility with a broader INVT product ecosystem and its inherent flexibility. Its standard Modbus RTU communication interface allows for easy integration into distributed control systems and supervisory control and data acquisition (SCADA) platforms, enabling remote monitoring and control. For facilities looking to embrace Industry 4.0 principles, the inverter can be a foundational component for smart manufacturing initiatives, feeding performance data into IIoT platforms for predictive maintenance and process optimization. While the GD27 itself is a robust standalone unit, INVT's range of inverters often allows for system expansion, with similar control philosophies and communication protocols across different series, facilitating future upgrades or the management of larger, more complex installations.

Frequently Asked Questions

What is the primary function of the INVT GD27-004G-4-B inverter?

The INVT GD27-004G-4-B is a 4kW, three-phase, 400V variable frequency drive designed to control the speed and torque of electric motors. It achieves this by converting fixed frequency AC power to variable frequency and voltage output, enabling precise motor operation.

Its core benefit lies in optimizing motor performance for specific loads, leading to significant energy savings. The inverter also provides motor protection functions against electrical faults and overloads.

This advanced control allows for smoother starts and stops, reduced mechanical stress on driven equipment, and improved process accuracy in various industrial applications.

How do I connect a motor to the INVT GD27-004G-4-B?

Connect the three motor power leads to the U, V, and W output terminals on the inverter. Ensure the motor's grounding wire is securely connected to the inverter's earth terminal for safety.

Always disconnect main power before making any connections. Verify motor specifications to ensure they match the inverter's capabilities and power rating for optimal performance.

Refer to the INVT GD27 manual for detailed wiring diagrams and best practices, especially concerning cable types and shielding to minimize electromagnetic interference.

What are the key advantages of the Goodrive27 series compared to other INVT inverter lines?

The Goodrive27 series, including the GD27-004G-4-B, offers enhanced performance with advanced vector control algorithms for superior torque response. It typically features a more compact design for easier panel installation.

It often incorporates more robust protection features and a wider operating temperature range, making it suitable for more demanding industrial environments. The Control Stage B designation suggests specific advanced control capabilities.

This series is positioned for applications requiring higher precision and dynamic motor control, bridging the gap between general-purpose drives and more specialized, high-end solutions within the INVT portfolio.

Can the INVT GD27-004G-4-B be used for single-phase motor applications?

No, the INVT GD27-004G-4-B is specifically designed for three-phase motor applications and requires a three-phase, 400V input power supply. It cannot be directly used to control a single-phase motor.

Using a three-phase inverter on a single-phase motor without proper motor modification or a phase converter is not recommended and can lead to motor damage or improper operation. Always match the inverter's phase configuration to the motor's requirements.

For single-phase motor control, INVT offers different inverter series that are specifically designed for single-phase input and output.

What is the meaning of "Control Stage B" for the INVT GD27-004G-4-B?

"Control Stage B" refers to a specific level of advanced control functionality offered by INVT for their inverters. It typically signifies superior motor control algorithms and performance capabilities compared to lower control stages.

This designation often implies enhanced features like more precise sensorless vector control, faster response times, and improved dynamic performance, making the inverter suitable for more demanding applications.

Understanding the specific features associated with Control Stage B within the GD27 series is crucial for selecting the right inverter for applications requiring high precision and responsiveness.

How can I reset a fault on the INVT GD27-004G-4-B inverter?

Faults on the GD27-004G-4-B can typically be reset after the fault condition has been cleared. For minor faults, a reset command via the keypad (often by pressing the 'STOP' or 'RESET' button) might suffice.

For persistent or critical faults, it's essential to identify the root cause before attempting a reset. Consult the inverter's manual for the specific fault code and recommended troubleshooting steps.

In some cases, a power cycle (turning the unit off and then back on after a short delay) may be required to clear certain types of faults, but only after the underlying issue has been resolved.

What is the typical overload capacity of the INVT GD27-004G-4-B?

The INVT GD27-004G-4-B typically offers an overload capacity of 150% of its rated current for 60 seconds and 180% for 10 seconds. This allows it to handle temporary peak loads without tripping.

This robust overload capability is crucial for applications where starting torque requirements are high or where transient load fluctuations are common, ensuring smooth operation.

Exceeding these limits consistently can lead to motor overheating and inverter shutdown, so it is important to size the inverter appropriately for the application's continuous and peak load demands.

Does the INVT GD27-004G-4-B support Modbus RTU communication?

Yes, the INVT GD27-004G-4-B comes standard with an RS485 communication port that supports the Modbus RTU protocol. This is a widely used industrial communication standard.

This feature allows the inverter to be easily integrated into automated systems, enabling remote monitoring, parameter setting, and control from a PLC or HMI.

Using Modbus RTU provides a standardized and efficient way to exchange data between the inverter and other devices on a serial network, facilitating system diagnostics and operational adjustments.

What is the recommended ambient operating temperature range for this inverter?

The INVT GD27-004G-4-B is typically rated for an ambient operating temperature range of -10°C to +50°C. However, performance derating is required for temperatures above 40°C.

Operating the inverter outside this specified range can lead to reduced performance, premature component failure, or immediate shutdown due to thermal protection.

Ensure adequate ventilation and consider cooling solutions if the inverter will be operating in an environment consistently above 40°C to maintain its reliability and lifespan.

How do I ensure proper installation and ventilation for the GD27-004G-4-B?

Install the inverter vertically on a flat, stable surface, allowing sufficient clearance around the unit for air circulation. Specific clearances for top, bottom, and sides are detailed in the product manual.

Avoid installing the inverter in areas with excessive dust, moisture, corrosive gases, or direct sunlight. Ensure the ambient air is clean and cool for optimal heat dissipation.

Check that any enclosure or cabinet housing the inverter has adequate ventilation or forced cooling to maintain the ambient temperature within the recommended operating range, especially during high load conditions.