INVT GD27-0R4G-S2-B Goodrive27 Compact Inverter 0.4kW Single Phase 220V Integrated Brake Unit

The INVT GD27-0R4G-S2-B Goodrive27 Compact Inverter is a powerful and versatile 0.4kW single-phase 220V VFD designed for demanding industrial applications. This unit integrates a brake unit as standard, offering enhanced control and safety for motor-driven systems. Its compact design, robust performance, and advanced features position it as a leading solution for various automation tasks, including pump control, fan regulation, and general machinery operation.

Product Specifications

| Feature                     | Specification                               |

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

| Model                       | GD27-0R4G-S2-B                              |

| Power Rating (kW)           | 0.4                                         |

| Input Voltage (Phase/V)     | Single Phase / 220V                         |

| Output Voltage (V)          | 220V (Typically)                            |

| Integrated Brake Unit       | Yes                                         |

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

| Frequency Output Range      | 0.00-400.00 Hz                              |

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

| Protection Class            | IP20                                        |

| Dimensions (W x H x D) (mm) | 100 x 160 x 135 (approximate, consult manual) |

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

Core Features & Market Positioning

The Goodrive27 series, exemplified by the GD27-0R4G-S2-B, stands out due to its superior motor control algorithms, offering precise speed regulation and excellent torque performance even under variable load conditions. The integrated brake unit is a significant differentiator, simplifying installation and reducing external component costs for applications requiring holding torque or rapid deceleration. This inverter leverages advanced thermal management techniques, ensuring reliable operation in challenging environments and extending its operational lifespan. Its robust construction and comprehensive protection features, including over-voltage, under-voltage, overload, and overheat protection, solidify its position as a dependable choice for industrial automation.

Key Application Scenarios

The INVT GD27-0R4G-S2-B is ideally suited for a wide array of applications where precise motor control and compact integration are paramount. Common use cases include variable speed drives for pumps in HVAC systems, centrifugal fans in industrial ventilation, and conveyor belts in material handling. Its ability to handle single-phase input and provide efficient three-phase motor output makes it a flexible solution for retrofitting older machinery or for installations where only single-phase power is available. It's also frequently specified for textile machinery, packaging equipment, and machine tools requiring consistent speed and torque.

Practical System Integration Guidance

Integrating the GD27-0R4G-S2-B involves careful consideration of wiring and parameter setup. The unit typically requires a stable single-phase 220V AC input. Motor wiring should adhere to the inverter's output specifications, ensuring proper phase rotation. The integrated brake unit connection is crucial for applications needing dynamic braking; refer to the manual for precise wiring diagrams and suitable brake resistor selection to prevent overheating. Initial parameter setup should focus on motor autotuning for optimal performance, setting acceleration/deceleration ramps, and configuring basic I/O for start/stop commands and speed reference. Advanced users can explore sensorless vector control for enhanced torque response.

Operation and Risk Mitigation

Safe operation of the INVT GD27-0R4G-S2-B begins with proper installation, ensuring adequate ventilation to prevent overheating, which can lead to system faults or component damage. Always disconnect power before performing any wiring or maintenance. Common operational issues may include motor overload faults, often caused by undersized motors, incorrect parameter settings, or excessive mechanical load. Understanding fault codes, such as "Overload" (often indicated by a specific code like OL or E3), "Overvoltage" (OV or E1), or "Undervoltage" (UV or E2), is critical for swift troubleshooting. Referencing the product manual for a complete list of fault codes and their remediation steps is essential for minimizing downtime and preventing potential equipment damage.

Scalability & Long-Term Value

The Goodrive27 series is designed with future needs in mind. While the GD27-0R4G-S2-B is a standalone unit, INVT's broader product portfolio allows for integration into larger, more complex automation systems. Compatibility with standard industrial communication protocols (depending on optional communication cards) enables seamless integration into SCADA systems or PLCs for enhanced monitoring and control. The robust build quality and INVT's commitment to technological advancement ensure that this inverter provides long-term value through reliable performance and potential upgrade paths within the INVT ecosystem, supporting the transition towards Industry 4.0 and smart manufacturing initiatives.

FAQs

Q1: What is the primary function of the integrated brake unit in the INVT GD27-0R4G-S2-B?

The integrated brake unit allows the inverter to dissipate regenerative energy safely. It engages the motor's brake resistor to absorb excess energy during deceleration. This functionality is critical for applications requiring quick stops or holding loads.

This unit enhances system safety by providing reliable braking torque. It prevents over-voltage faults caused by energy feedback from the motor. The integrated design simplifies installation and reduces the need for external braking components.

Its primary purpose is to provide dynamic braking capabilities for precise motor speed control. This is essential for applications where stopping accuracy or load holding is paramount.

Q2: Can the INVT GD27-0R4G-S2-B control a three-phase motor from a single-phase power supply?

Yes, this inverter is specifically designed for this purpose. It converts a single-phase 220V AC input into a three-phase 220V AC output. This enables the use of standard three-phase motors in environments with only single-phase power availability.

The GD27-0R4G-S2-B achieves this conversion through its internal power electronics and control algorithms. It effectively creates a synthesized three-phase waveform to drive the motor.

This capability makes it an excellent choice for retrofitting older machinery or for new installations where three-phase power is not readily accessible. It expands the applicability of three-phase motors significantly.

Q3: What are the key advantages of using sensorless vector control with the INVT GD27-0R4G-S2-B?

Sensorless vector control provides excellent torque performance at low speeds. It offers precise speed regulation without the need for a motor encoder. This feature reduces system complexity and cost.

This control mode enhances the inverter's dynamic response. It allows for rapid changes in speed and torque with minimal overshoot. This is crucial for applications with fluctuating load demands.

By eliminating the encoder, installation is simplified, and potential points of failure are reduced. It also minimizes maintenance requirements associated with encoder-equipped systems.

Q4: How do I select the correct brake resistor for the INVT GD27-0R4G-S2-B?

Brake resistor selection depends on the motor's inertia and the desired deceleration rate. The inverter manual provides guidelines for resistance values and power ratings. Incorrect selection can lead to resistor overheating or insufficient braking.

The resistor’s power rating must be sufficient to dissipate the regenerative energy produced during braking cycles. Consider the duty cycle and peak power requirements of the application.

Consult the INVT technical documentation for specific charts and formulas to match the resistor to your motor and application's braking profile. Proper sizing ensures system safety and longevity.

Q5: What is the typical operating temperature range for the INVT GD27-0R4G-S2-B?

The INVT GD27-0R4G-S2-B typically operates within an ambient temperature range of -10°C to +40°C. Operation beyond this range may require derating or specific cooling measures.

Exceeding the upper temperature limit can trigger thermal overload protection, leading to shutdown. Conversely, extremely low temperatures can affect component performance and lubrication.

Ensure adequate ventilation around the inverter to maintain optimal operating temperatures. Refer to the product manual for detailed derating curves based on ambient temperature.

Q6: What type of motor can be connected to the INVT GD27-0R4G-S2-B?

This inverter is designed to control standard three-phase asynchronous induction motors. The motor's voltage rating should be compatible with the inverter's output voltage (typically 220V).

The motor's power rating should be within the capacity of the inverter, or slightly lower for better overload performance. Ensure the motor's insulation is suitable for variable frequency drive output.

Always check the motor nameplate for its voltage, current, and frequency ratings to ensure compatibility with the GD27-0R4G-S2-B. Proper motor selection is key to optimal performance.

Q7: What are the basic steps for commissioning the INVT GD27-0R4G-S2-B?

First, ensure all wiring is correctly connected according to the manual and power is off. Then, perform motor auto-tuning to calibrate the inverter to the specific motor parameters.

Next, set basic operating parameters such as acceleration/deceleration times and maximum frequency. Configure digital inputs for start/stop and direction control.

Finally, test run the motor at various speeds and monitor performance. Adjust parameters as needed to achieve the desired application behavior and safety.

Q8: How can I prevent overload faults with the INVT GD27-0R4G-S2-B?

Ensure the motor's power rating is appropriately matched to the inverter's capacity. Properly size the motor for the application's actual load requirements.

Verify that the motor protection parameters within the inverter are correctly set. Utilize the autotuning function to ensure accurate motor data is utilized by the VFD.

Minimize sudden load increases and ensure mechanical systems are running smoothly. Check for any binding or excessive friction in the driven machinery.

Q9: Does the INVT GD27-0R4G-S2-B support communication protocols for industrial networks?

The base unit may not have built-in network communication capabilities. However, INVT often offers optional communication cards for protocols like Modbus RTU, Profibus, or Ethernet/IP.

These optional cards allow the inverter to be integrated into supervisory control systems or industrial Ethernet networks. This enables remote monitoring, parameter setting, and control.

Check the product datasheet or contact INVT for available communication options for the GD27 series to ensure compatibility with your specific network requirements.

Q10: What is the protection class (IP rating) of the INVT GD27-0R4G-S2-B and what does it mean?

The INVT GD27-0R4G-S2-B has an IP20 protection class rating. This means it is protected against solid objects larger than 12.5 mm (like a finger) but offers no protection against water ingress.

IP20 indicates it is suitable for installation in clean, dry environments where there is no risk of water splashes or dust accumulation. It is typically for indoor use in control cabinets.

This rating means the enclosure provides basic protection for users against contact with hazardous parts. It is crucial to install it in an appropriate environment to maintain its functionality and safety.