INVT GD27-1R5G-S2-B Goodrive27 Versatile Controller 1.5kW 220V Single Phase Built-in Braking

The INVT GD27-1R5G-S2-B Goodrive27 Versatile Controller, a 1.5kW 220V single-phase variable frequency drive, stands out in the industrial automation market for its robust performance, integrated braking capabilities, and compact design. This versatile controller is engineered to deliver precise motor control, enhanced energy efficiency, and reliable operation across a multitude of demanding applications. With a 1.5kW power rating and a 220V single-phase input, it is an ideal solution for small to medium-sized machinery requiring dependable speed regulation and torque management. The built-in braking unit offers immediate deceleration and holding torque, crucial for applications where safety and rapid stopping are paramount. Its user-friendly interface and comprehensive feature set position it as a cost-effective and high-value component for system integrators and end-users seeking advanced motor control solutions.

Product Specifications

| Parameter             | Specification                                   |

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

| Model                 | GD27-1R5G-S2-B                                  |

| Rated Power           | 1.5 kW (2 HP)                                   |

| Input Voltage         | 220V Single Phase                               |

| Output Voltage        | 220V Three Phase (typically)                    |

| Output Frequency      | 0-400 Hz                                        |

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

| Braking Unit          | Built-in                                        |

| Protection Class      | IP20                                            |

| Mounting Type         | Wall-mounted, DIN rail mounting                 |

| Dimensions (H x W x D) | 160 x 105 x 145 mm (approximate)                |

| Ambient Temperature   | -10°C to +40°C                                  |

Core Features & Market Positioning

The INVT GD27-1R5G-S2-B distinguishes itself through its advanced control algorithms, offering both V/f control for general-purpose applications and sensorless vector control for enhanced dynamic performance and torque accuracy. This dual-mode capability allows for optimized motor performance across various load conditions, ensuring precise speed regulation and immediate response to load changes, which is a significant advantage over basic VFDs. The integrated braking unit is a key differentiator, eliminating the need for external braking resistors in many applications and simplifying installation while enhancing safety by providing controlled stopping and holding torque. Its compact footprint and robust IP20 protection make it suitable for installation in control cabinets with limited space, contributing to its positioning as a versatile and space-saving solution for OEMs and system integrators.

Key Application Scenarios

This versatile controller finds extensive application in industries requiring precise and efficient motor operation. It is an excellent choice for centrifugal fans and pumps, where variable speed drives significantly improve energy savings by matching motor speed to system demand. In the textile industry, the GD27-1R5G-S2-B can be used for spinning machines, weaving looms, and dyeing equipment, providing the fine speed control necessary for consistent product quality. Furthermore, its robust design and integrated braking make it suitable for conveyor systems, packaging machinery, and small machine tools, where accurate positioning and controlled starts/stops are critical. The single-phase input is particularly beneficial for smaller workshops or areas where only single-phase power is readily available, expanding its deployment possibilities.

Practical System Integration Guidance

Integrating the INVT GD27-1R5G-S2-B into existing systems is streamlined due to its user-friendly design and comprehensive terminal layout. For wiring, ensure the single-phase 220V AC power supply is connected to the L and N terminals, and the three-phase motor is connected to U, V, and W. The built-in braking unit typically connects to internal terminals, simplifying external wiring. Programming involves setting motor parameters, such as rated voltage, current, and frequency, via the control panel keypad or through communication interfaces if available. Common programming tasks include setting acceleration/deceleration times, speed limits, and input/output signal assignments to control start/stop commands and fault indications. For safety, always ensure the unit is de-energized before making any connections.

Operation and Risk Mitigation

Proper operation of the INVT GD27-1R5G-S2-B is crucial for maximizing its lifespan and ensuring system safety. Before initial startup, verify all wiring connections and motor parameters are correctly set to prevent damage or improper operation. Familiarize yourself with the common fault codes displayed on the unit, such as overcurrent (OC), overvoltage (OV), undervoltage (UV), and motor overload (OL), as these indicate specific issues requiring attention. For instance, an OC fault often suggests the motor is overloaded or there's a short circuit. Always follow the manufacturer's guidelines for emergency stop procedures and ensure the integrated braking function is correctly configured for applications requiring rapid deceleration to mitigate risks associated with uncontrolled motor coasting.

Scalability & Long-Term Value

The INVT GD27-1R5G-S2-B offers significant long-term value through its reliable performance and adaptability. While this specific model is designed for 1.5kW applications, INVT's Goodrive series often provides a range of compatible controllers, allowing for seamless upgrades or expansion to higher power requirements within a consistent control philosophy. Its compatibility with standard industrial communication protocols (depending on the specific configuration or add-on modules) enables integration into broader supervisory control and data acquisition (SCADA) systems or industrial internet of things (IIoT) platforms. This facilitates remote monitoring, diagnostics, and performance optimization, enhancing operational efficiency and predictive maintenance capabilities, thereby extending the overall value and service life of the automated system.

Frequently Asked Questions

1. What is the maximum motor size supported by the INVT GD27-1R5G-S2-B?

The INVT GD27-1R5G-S2-B is specifically rated for a 1.5kW (2 HP) motor. This ensures optimal performance and protection when paired with motors within this power range. Exceeding this rating can lead to overcurrent faults and potential damage to the drive or motor.

This controller is designed for single-phase 220V input and three-phase 220V output, making it suitable for a wide array of standard industrial motors. Always consult the motor's nameplate to confirm its specifications match the drive's capabilities for reliable operation.

For applications requiring larger motors, INVT offers other models within the Goodrive series that can accommodate higher power ratings. It is essential to select a drive that matches or slightly exceeds the motor's power requirements to ensure adequate performance and longevity.

2. Can this drive control a three-phase motor from a single-phase power supply?

Yes, the INVT GD27-1R5G-S2-B is designed to convert a single-phase 220V AC input into a three-phase 220V AC output. This is a common requirement for many industrial applications where only single-phase power is available. It allows for the use of efficient three-phase motors without needing a three-phase power supply at the installation site.

The drive achieves this conversion through its internal power electronics and control circuitry, effectively simulating a three-phase waveform for the motor. This enables precise speed and torque control of the connected three-phase motor. Always ensure the motor is rated for 220V three-phase operation.

This capability makes the GD27-1R5G-S2-B a versatile solution for retrofitting older equipment or for installations in locations with limited power infrastructure. Proper wiring of the single-phase input and three-phase motor output is crucial for safe and efficient operation.

3. Does the INVT GD27-1R5G-S2-B have a built-in braking resistor?

The INVT GD27-1R5G-S2-B features a built-in braking *unit*, not necessarily a resistor. This unit is designed to dissipate braking energy internally or to connect to an external braking resistor if higher braking torque is required. The integrated braking function allows for controlled deceleration and holding torque.

For applications with frequent braking or where rapid stopping is essential, the built-in braking circuit effectively manages the excess energy generated during deceleration. This simplifies installation by reducing the need for external components in many standard scenarios.

If the application demands very high braking torque, an external braking resistor can often be connected to specific terminals on the drive. Always refer to the product manual to confirm the specific configuration and requirements for connecting external braking components.

4. What are the main advantages of using sensorless vector control?

Sensorless vector control offers superior motor performance compared to basic V/f control, providing enhanced dynamic response and accurate torque control without the need for a motor encoder. This leads to more precise speed regulation, especially under rapidly changing load conditions.

This advanced control method allows the drive to achieve higher starting torque, which is beneficial for applications that require overcoming inertia or significant starting loads. It ensures the motor operates efficiently across a wider speed range with consistent performance.

The primary advantage is the improved control accuracy and responsiveness, making the INVT GD27-1R5G-S2-B suitable for more demanding applications like positioning systems or variable torque loads where precise motor behavior is critical. It also simplifies installation by eliminating the need for additional motor feedback devices.

5. How do I connect a motor to the INVT GD27-1R5G-S2-B?

Connect the three-phase output terminals of the drive, typically labeled U, V, and W, directly to the corresponding terminals of your three-phase motor. Ensure the motor is rated for 220V three-phase operation and is within the 1.5kW power rating of the drive. Always ensure the power supply to the drive is completely off before making any connections.

For single-phase input, connect the live (L) and neutral (N) wires from your 220V single-phase power source to the designated input terminals on the drive. It is crucial to use appropriate gauge wiring and ensure all connections are secure to prevent electrical hazards and ensure reliable power delivery to the drive.

Refer to the INVT GD27-1R5G-S2-B user manual for a detailed wiring diagram and specific terminal designations. Proper installation according to the manual is essential for safe operation and to prevent damage to the drive or motor.

6. What are common fault codes for this drive and how can I resolve them?

Common fault codes include OC (Overcurrent), OV (Overvoltage), UV (Undervoltage), and OL (Overload). An OC fault typically indicates the motor is drawing too much current, possibly due to a mechanical overload, short circuit, or incorrect motor parameters. Resolve by checking for mechanical obstructions, ensuring motor parameters are correctly set, and verifying wiring.

An OV or UV fault relates to the input voltage being too high or too low, respectively. Check the stability and voltage level of your single-phase 220V power supply. If the voltage is consistently outside the drive's operating range, a voltage stabilizer might be necessary.

An OL fault signifies that the motor is overheating or the drive detects it's operating beyond its thermal capacity. This could be due to a prolonged high load, inadequate cooling for the drive or motor, or incorrect motor thermal parameters. Ensure proper ventilation and reduce the load if possible.

7. Can this drive be used for applications requiring precise positioning?

While the INVT GD27-1R5G-S2-B offers sensorless vector control for improved torque and speed accuracy, it is primarily designed for variable speed applications rather than high-precision positioning. Sensorless vector control provides good performance but lacks the absolute positional feedback typically required for sub-millimeter accuracy.

For applications demanding extremely precise positioning, it is generally recommended to use drives with encoder feedback capabilities or dedicated servo systems. These systems provide real-time positional data, allowing for closed-loop control and accurate endpoint control.

However, for less critical positioning tasks or where moderate accuracy is sufficient, the GD27-1R5G-S2-B's precise speed control and good torque response can be leveraged. Understanding the specific accuracy requirements of your application is key to selecting the appropriate control solution.

8. What is the protection rating (IP rating) of the INVT GD27-1R5G-S2-B?

The INVT GD27-1R5G-S2-B typically has an IP20 protection rating. This means it is protected against solid objects greater than 12.5 mm in diameter (like a finger) and offers no protection against water ingress. Therefore, it is designed for installation in clean, dry environments, such as control cabinets.

The IP20 rating signifies that the drive is suitable for indoor use where it will be protected from dust, moisture, and corrosive elements. It is essential to ensure the drive is housed in an appropriate enclosure if the installation environment is not sufficiently protected.

Operating the drive outside of these environmental conditions, such as in dusty or wet areas, without adequate protection could lead to damage or failure. Always ensure the drive is installed in an environment that meets its IP rating requirements for optimal reliability and longevity.

9. How does the built-in braking function improve safety?

The integrated braking unit allows the drive to quickly and smoothly decelerate the motor to a stop when commanded. This is crucial for applications where a sudden stop is necessary to prevent accidents or damage to equipment, such as on conveyor systems or machine tools. It provides controlled braking, preventing uncontrolled coasting.

When a stop command is issued, the drive can dissipate the motor's kinetic energy, often through an internal or external braking resistor, generating a braking torque that opposes the motor's rotation. This rapid deceleration capability significantly enhances operational safety by reducing stopping distances and times.

The built-in nature of the braking function simplifies installation and reduces the overall system complexity and cost, as it eliminates the need for external braking contactors and resistors in many standard applications. This makes it a reliable safety feature for many industrial processes.

10. Can this drive be controlled remotely via a PLC or other automation system?

Yes, the INVT GD27-1R5G-S2-B is designed for integration into broader automation systems. It typically supports various digital and analog input/output terminals that can be used to receive control signals (start/stop, speed reference) from a PLC or other external controllers. Some models may also offer communication ports for fieldbus integration.

Remote control is often achieved by wiring digital inputs to receive commands from a PLC's output modules, or by using analog inputs to accept a speed reference signal (e.g., 0-10V or 4-20mA) from a PLC's analog output module. Check the product manual for specific terminal functions and signal types supported.

For more advanced integration, the drive might support optional communication modules for protocols like Modbus RTU, Profibus, or Ethernet/IP, enabling full remote monitoring, parameter setting, and diagnostics via a PLC or SCADA system, greatly enhancing system automation capabilities.