INVT GD350A 185 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)

Description

The INVT GD350A 185 kW is a high-performance vector-control drive designed for demanding industrial applications. Offering dual-rating operation (185 kW Normal Duty / 160 kW Heavy Duty), it delivers stable torque at low speeds, advanced motor protection, and flexible communication options.
Ideal for HVAC systems, pumps, compressors, and industrial automation in manufacturing, packaging, and textile sectors.

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Key Specifications

• Power Rating: 185 kW (Normal Duty) / 160 kW (Heavy Duty)

• Voltage: 3-Phase 400V AC

• Control Modes: Vector Control (VC), Sensorless Vector Control (SVC), Torque Control, V/F Control

• Speed Control Accuracy: ±0.2% (SVC), ±0.02% (VC)

• Starting Torque:

  • Asynchronous Motors: 0.25Hz / 150%

  • Synchronous Motors: 0Hz / 200%

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Precision Motor Control & Efficiency

The INVT GD350A 185 kW features advanced I/F and torque control algorithms, ensuring smooth and accurate speed regulation with strong torque down to zero speed. It supports both asynchronous and synchronous motors, with a built-in motor auto-tuning function for optimized efficiency, energy savings, and extended motor life.

• Torque Control Accuracy: 10% (SVC), 5% (VC)

• Motor Auto-Tuning: Supports asynchronous and synchronous motors

• Rotating Speed Tracking: Seamless control mode switching without current shocks

• Built-In EMC Filter (C3): Compact noise suppression ensures compliance and reliability

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Robust Protection & Stability

Designed for demanding industrial environments, the GD350A 185 kW maximizes uptime with intelligent fault prevention mechanisms.

• Overload Capacity: 150% for 1 min | 180% for 10 s | 200% for 1 s

• Fault Protections (30+ types): Overcurrent, Overvoltage, Undervoltage, Overheating, Phase Loss, Short Circuit

• Voltage & Current Control: Prevents overvoltage stalls and suppresses surges during acceleration/deceleration

• Safe Torque Off (STO): Integrated certified safety for emergency stops

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Advanced Braking & Uninterrupted Operation

The GD350A 185 kW ensures safe stops even under high-inertia loads and maintains operation during short-term power interruptions.

• Braking Modes: Dynamic, DC Injection, Magnetic, Short-Circuit Braking

• Ride-Through Support: Keeps critical processes running during temporary power loss – essential for textiles, chemicals, and industrial automation

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Expandability & Intelligent Features

Customize the inverter to your exact requirements with modular slots and programmable logic.

• PLC Function: 128kB memory for tailored automation logic

• Expansion Slots (x3): For I/O cards, feedback modules, and communication protocols

• Position Control Accuracy: ±1 pulse

• Digital Noise Suppression: For high-speed, error-free communication even in harsh EMI environments

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Connectivity & Remote Management

The GD350A 185kW is built for smart factories and Industry 4.0 environments.

• Standard Protocol: Modbus RTU

• Optional Protocols: CANopen, Profibus DP, Profinet

• Wireless Monitoring: Bluetooth & WiFi modules (optional) support mobile app control (INVT-Workshop) within 30m

• USB Interface: Curve capture and diagnostics

• Interfaces:

  • 4 digital inputs, 2 high-speed pulse inputs

  • 2 analog inputs, 2 relay outputs

  • 2 analog outputs, 1 digital output

  • 2x HDI ports for high-speed AB pulse input

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User-Friendly Operation

• LCD Keypad: Multi-language interface for intuitive setup

• PC Interface: Supports Ethernet, USB-RS485, and cloud access via UDP/MQTT protocols

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Applications

• HVAC Systems (AHUs, fans, chillers)

• Pumps (Water supply, wastewater, irrigation)

• Conveyors & Packaging Lines

• CNC & Machine Tools

• Textile and Chemical Processing

• Renewable Energy Systems

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

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