INVT GD350A 55 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)

Description

The INVT GD350A 55 kW 400 V 3-Phase (Normal Duty) inverter delivers precise vector control for industrial drives requiring high performance under variable load. This specific GD350A model — rated 55 kW for Normal Duty and 45 kW for Heavy Duty — integrates Safe Torque Off (STO) functionality, flexible communication options, and advanced motor control features, making it ideal for complex automation systems, pumps, fans, conveyors, and other demanding industrial applications.

Powerful and Precise Motor Control

With advanced torque control algorithms, the INVT GD350A 55 kW delivers strong and consistent torque even at very low speeds, ideal for applications including pumps, conveyors, fans, and heavy machinery. The built-in motor auto-tuning function automatically optimizes settings for asynchronous and synchronous motors, improving operational stability and enhancing speed and torque accuracy.

Dual Power Rating for Versatile Performance

• Normal Duty: 55 kW rated power

• Heavy Duty: 45 kW rated power for overload and harsher conditions

This flexible rating ensures the INVT GD350A 55 kW can meet a broad range of operational demands, adapting seamlessly to both continuous and high-load environments.

Enhanced Stability and Safety

• Voltage and Current Stability: Intelligent control minimizes fault triggers by preventing overvoltage during deceleration, controlling output frequency to avoid motor surges, and protecting against overcurrent during acceleration phases.

• Integrated DC Reactor: Equipped with a built-in DC reactor, this inverter reduces harmonic distortion, minimizes current ripple, and protects power components, enhancing overall system reliability and reducing electromagnetic interference without the need for additional external components.

• Safe Torque Off (STO): Integrated safety feature that immediately cuts off power for operator protection and machinery compliance.

• Uninterrupted Operation: Stores energy to maintain motor operation during brief power outages, critical for processes in industries like textiles, chemical processing, and manufacturing.

Robust Overload and Braking Capabilities

• Overload Endurance: Supports up to 150% current for 1 minute, 180% for 10 seconds, and 200% for 1 second, ensuring dependable operation under fluctuating loads.

• Advanced Braking Modes: Dynamic, DC, magnetic, short-circuit braking, plus regenerative braking that recycles energy to enhance system efficiency and reduce installation complexity.

Precision Control and Noise Reduction

• Speed Control Accuracy: ±0.2% (SVC mode) and ±0.02% (VC mode) ensure smooth, precise speed regulation.

• Position Control Accuracy: ±1 pulse, perfect for automation and CNC applications.

• Starting Torque: Up to 0.25 Hz / 150% for asynchronous motors and 0 Hz / 200% for synchronous motors guarantees reliable start-up performance.

• Digital Noise Filtering: Advanced DSP technology filters noise to maintain signal integrity in electrically noisy industrial environments.

Intelligent Connectivity and User-Friendly Interface

• Industrial Networking: Modbus RTU standard with optional CAN, Profibus DP, and Profinet communication modules for seamless integration.

• IoT-Enabled Wireless Control: Optional Bluetooth and WiFi cards enable remote monitoring and management through the INVT-Workshop mobile app with a 30m wireless range.

• Flexible I/O: Equipped with multiple digital and analog inputs/outputs, relay outputs, and high-speed pulse inputs for versatile control scenarios.

• Expandable Slots: Three expansion slots allow custom additions such as PLC modules, feedback devices, and communication interfaces.

• LCD Control Panel: Intuitive multi-language display facilitates easy setup, diagnostics, and operation.

Wide Range of Industrial Applications

Designed for use in HVAC systems, industrial pumps, conveyor systems, machine tools, packaging lines, textiles, food processing, and renewable energy solutions, the INVT GD350A 55kW guarantees reliable speed and torque control that maximizes productivity and energy efficiency.

---

Why Choose the INVT GD350A 55 kW?

The INVT GD350A 55 kW  offers precise vector control and dual power ratings (55 kW Normal Duty / 45 kW Heavy Duty) for variable-load industrial applications. With integrated Safe Torque Off (STO), flexible communication options, and a rugged compact design, this model is ideal for pumps, fans, conveyors, and other automation systems where reliability, efficiency, and accurate motor control are critical.

---

See our full range of 400 V variable frequency drives, covering all power ratings from 0.75 to 500 kW.

_