INVT GD350A-011G/015P-4 High Performance Vector VFD Inverter

The INVT GD350A-011G/015P-4 High Performance Vector VFD Inverter stands out as a robust solution for variable speed drive applications, engineered for precision control and exceptional efficiency. This advanced inverter boasts key advantages such as superior torque control, enhanced energy savings, and remarkable reliability, making it a preferred choice across demanding industrial sectors. Its core features include a high-performance vector control algorithm, integrated braking unit for precise deceleration, and comprehensive protection functions, all contributing to its strong market positioning as a cutting-edge industrial automation component. The GD350A-011G/015P-4 is designed to meet stringent performance requirements with a rated power of 11kW (15HP) and a 400V/480V class input voltage, ensuring broad applicability and robust operational capabilities.

Product Specifications

| Parameter                 | Specification                                |

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

| Model                     | GD350A-011G/015P-4                           |

| Rated Power               | 11 kW (15 HP)                                |

| Input Voltage Class       | 400V / 480V                                  |

| Output Voltage            | 3-Phase, 380V / 480V (Adjustable)            |

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

| Frequency Accuracy        | ±0.02% (Typical)                             |

| Torque Boost              | Automatic / Manual                           |

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

| Braking Unit              | Integrated (Optional external resistor)      |

| Communication Interfaces  | RS485 (Modbus RTU standard), Optional fieldbuses |

| Protection Functions      | Overvoltage,Undervoltage, Overcurrent, Overload, Overtemperature, etc. |

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

| Enclosure Rating          | IP20 (Standard)                              |

Core Features & Market Positioning

The INVT GD350A-011G/015P-4 distinguishes itself through its sophisticated sensorless vector control technology, offering precise speed and torque regulation without the need for encoder feedback. This advanced control capability ensures smooth operation, rapid dynamic response, and excellent low-frequency torque, directly translating into enhanced process efficiency and product quality for users. Its integration of a high-performance DSP processor underpins these capabilities, enabling complex algorithms to be executed rapidly and reliably. Furthermore, the inverter's robust design, featuring advanced heat dissipation and comprehensive protection mechanisms, solidifies its market position as a dependable and durable solution for challenging industrial environments, outperforming many competitors in terms of stability and longevity.

Key Application Scenarios

This high-performance variable frequency drive (VFD) finds optimal application in scenarios demanding precise motor control and energy efficiency. Industries such as manufacturing, particularly in areas like conveyor systems, processing machinery, and packaging lines, benefit significantly from its accurate speed regulation and torque responsiveness. The GD350A-011G/015P-4 is also adept at driving pumps and fans in HVAC systems, where its ability to modulate speed based on demand leads to substantial energy savings. For machine tool applications, its precise control over acceleration and deceleration profiles is crucial for maintaining product tolerances and extending equipment life.

Practical System Integration Guidance

Integrating the INVT GD350A-011G/015P-4 into existing industrial systems is streamlined through its user-friendly design and versatile communication options. Proper wiring is paramount; ensure the input power supply, motor leads, and grounding are connected according to the manual's schematics to prevent electrical hazards and ensure optimal performance. For motor connections, utilizing shielded motor cables is recommended to minimize electromagnetic interference (EMI). Commissioning typically involves setting fundamental parameters such as motor nameplate data (voltage, frequency, current, poles) and selecting the appropriate control mode (e.g., sensorless vector control). Advanced parameter configuration, including acceleration/deceleration times, torque boost, and speed limits, can be fine-tuned via the keypad or through serial communication protocols like Modbus RTU, facilitating seamless integration with SCADA systems or PLCs.

Operation and Risk Mitigation

Safe and efficient operation of the INVT GD350A-011G/015P-4 requires adherence to established safety protocols and an understanding of its operational parameters. Always ensure that power is disconnected and locked out before performing any wiring or maintenance. The inverter is equipped with numerous protection functions to mitigate risks; common fault codes, such as "Overcurrent" (F001) or "Overtemperature" (F004), typically indicate issues with motor load, wiring, or ambient conditions. Addressing these faults promptly involves consulting the user manual for specific diagnostic steps, which may include checking motor insulation, verifying load conditions, or ensuring adequate ventilation for the drive. Implementing a regular inspection schedule for electrical connections and environmental factors will further enhance operational safety and prevent unexpected downtime.

Scalability & Long-Term Value

The INVT GD350A-011G/015P-4 offers considerable scalability and long-term value, particularly within modern industrial automation frameworks. Its compatibility with various fieldbus communication modules (e.g., PROFIBUS, EtherNet/IP) allows for seamless integration into distributed control systems and facilitates its adoption in Industry 4.0 initiatives, enabling advanced data acquisition and remote management capabilities. The inverter's firmware is designed for potential upgrades, ensuring that its performance and feature set can evolve with technological advancements and changing operational requirements. Furthermore, its robust construction and comprehensive protection features contribute to a long service life, minimizing the total cost of ownership and providing a reliable foundation for future system expansions or modifications.

Frequently Asked Questions

What is the primary advantage of the GD350A-011G/015P-4's sensorless vector control?

It offers precise torque and speed regulation without needing an encoder.

This advanced control leads to smoother motor operation and better dynamic response.

It significantly reduces system complexity and cost by eliminating the encoder.

How do I select the correct motor parameters for the INVT GD350A-011G/015P-4?

Refer to your motor's nameplate for voltage, current, and frequency ratings.

Input the motor's rated power and pole count accurately for optimal performance.

Perform an auto-tuning function for precise motor parameter identification.

What are common causes for an "Overcurrent" fault on the GD350A-011G/015P-4?

Sudden high load demands exceeding the drive's capacity.

Incorrect motor wiring or insulation breakdown causing short circuits.

Acceleration ramps set too short, leading to excessive inrush current.

Can the GD350A-011G/015P-4 be used for dynamic braking applications?

Yes, it has an integrated braking unit for controlled deceleration.

External braking resistors can be connected for higher braking torque needs.

Proper sizing of the braking resistor is crucial for effective dynamic braking.

What communication protocols does the INVT GD350A-011G/015P-4 support?

It natively supports Modbus RTU via RS485 serial communication.

Optional communication cards are available for protocols like PROFIBUS DP.

EtherNet/IP and other industrial Ethernet protocols can also be integrated.

How do I reset a fault on the GD350A-011G/015P-4 inverter?

Navigate to the fault menu and select the reset option.

Power cycling the drive after resolving the fault is often necessary.

Check the fault code's meaning in the manual before resetting.

What is the operating temperature range for this VFD?

The standard operating temperature range is -10°C to +40°C.

Performance may be derated if operating consistently above 40°C.

Ensure proper ventilation to maintain optimal internal temperatures.

How does the GD350A-011G/015P-4 contribute to energy savings?

By precisely controlling motor speed based on load requirements.

Reducing motor speed significantly cuts energy consumption compared to fixed speeds.

Optimizing torque output prevents energy wastage under partial loads.

What protection functions are included in the GD350A-011G/015P-4?

It includes overvoltage, undervoltage, and overcurrent protection.

Overload, overtemperature, and ground fault protection are also featured.

These ensure the safety of the drive, motor, and connected systems.

Is the GD350A-011G/015P-4 suitable for harsh industrial environments?

Yes, its robust design ensures reliability in demanding conditions.

Good ventilation and adherence to operating temperature limits are key.

Regular maintenance and checks will maximize its lifespan.