Front view of 90 kW three-phase 400V INVT GD350A inverter
Front view of 90 kW three-phase 400V INVT GD350A inverter
Right side view of 90 kW three-phase 400V INVT GD350A inverter
Left side view of 90 kW three-phase 400V INVT GD350A inverter
Top view of 90 kW three-phase 400V INVT GD350A inverter
Bottom view of 90 kW three-phase 400V INVT GD350A inverter

INVT GD350A 90 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)

CHF 2,895.00 excl. VAT, free Shipping

  • Dual power rating: 90 kW (Normal Duty) / 75 kW (Heavy Duty) at 3-phase 400V

  • Advanced torque control for strong, stable low-speed performance

  • Automatic motor tuning for asynchronous and synchronous motors

  • Intelligent voltage and current stability to minimize faults

  • Integrated Safe Torque Off (STO) for enhanced operator safety

  • Robust overload capacity: up to 150% current for 1 minute

  • Multiple braking methods including regenerative braking for energy savings

  • High precision control: ±0.2% speed accuracy, ±1 pulse position accuracy

  • Comprehensive connectivity: Modbus RTU, CAN, Profibus DP, Profinet, plus optional Bluetooth/WiFi

  • User-friendly LCD panel with multilingual support and built-in PLC

  • Expandable with I/O, communication, and feedback modules

  • Ideal for industrial pumps, conveyors, HVAC, packaging, textiles, and renewable energy

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SKU: GD350A-075G/090P-4 Category: Tag:

Description

The INVT GD350A 90 kW drive delivers precise and reliable motor control for industrial applications. With dual ratings — 90 kW for Normal Duty and 75 kW for Heavy Duty — it provides flexibility for demanding environments. Featuring advanced vector control, integrated safety functions, and robust design, the GD350A 90 kW ensures stable torque, energy efficiency, and seamless integration with pumps, compressors, conveyors, and HVAC systems.

Key Specifications

  • Power Rating: 90 kW (Normal Duty) / 75 kW (Heavy Duty)

  • Rated Voltage: 3-Phase 400V AC

  • Control Modes: Advanced I/F control & constant current source for superior low-speed torque

Powerful and Precise Motor Control

The GD350A 90kW features advanced torque control technology, providing strong and consistent torque delivery down to very low speeds. This ensures smooth startup and precise speed regulation, essential for applications requiring high load starting torque and fine motor positioning. The automatic motor tuning optimizes performance for both asynchronous and synchronous motors, enhancing efficiency while reducing motor heating and vibration.

Robust Stability and Safety

Equipped with intelligent voltage and current control algorithms, the GD350A 90kW minimizes fault occurrences by preventing overvoltage during deceleration, controlling output frequency to avoid motor surges, and limiting overcurrent during acceleration.

The integrated Safe Torque Off (STO) function guarantees immediate and safe power cut-off, ensuring operator protection and compliance with the latest machinery safety standards.

Integrated DC Reactor for enhanced power quality and reduced harmonic distortion

Superior Overload and Braking Capabilities

Designed to handle demanding load conditions, the GD350A 90 kW supports overload endurance up to:

  • 150% rated current for 1 minute

  • 180% for 10 seconds

  • 200% for 1 second

Advanced braking methods including dynamic, DC, magnetic, and short-circuit braking are built-in to provide safe and effective motor deceleration. The regenerative braking function recycles braking energy to improve overall system efficiency and reduce installation complexity.

Exceptional Control Accuracy & Noise Immunity

  • Position Control Accuracy: ±1 pulse for precise actuator and motor positioning

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

  • Starting Torque: Asynchronous motors up to 0.25 Hz / 150%, Synchronous motors up to 0 Hz / 200%

  • Digital filtering ensures noise-free communication and accurate signal processing even in electrically noisy industrial environments.

Flexible Connectivity & Intelligent Features

The GD350A 90kW offers extensive communication options to seamlessly integrate into industrial automation systems:

  • Standard Modbus RTU protocol support

  • Optional communication modules: CAN, Profibus DP, Profinet

  • Optional wireless connectivity: Bluetooth and WiFi cards enable remote control and monitoring via the INVT-Workshop mobile app within a 30-meter range

Multiple digital and analog inputs and outputs, relay contacts, and high-speed pulse ports provide versatile interfacing options for customized control and automation.

User-Friendly Operation and Expandability

  • Intuitive LCD control panel with multi-language support simplifies setup and daily operation

  • Powerful embedded PLC with 128 kB memory for custom automation logic

  • USB interface for easy data logging and firmware upgrades

  • Three expansion slots support additional I/O, communication, and feedback modules for tailored functionality

  • Flexible PC interface via USB-RS485 adapter, Ethernet, or cloud remote access (UDP/MQTT)

Wide Range of Industrial Applications

  • Industrial pumps and fans

  • Conveyor systems and packaging machinery

  • HVAC installations and building automation

  • Textile, chemical fiber production, and food processing

  • Renewable energy and green technology applications

Summary

The GD350A 90kW offers industry-leading performance with robust design, precise motor control, comprehensive safety features, and smart connectivity. Perfectly suited for professionals seeking a reliable, high-power VFD with advanced functionality to optimize industrial operations.

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

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Additional information

Brake Chopper

Communication Protocols

Ethernet/IP, Profinet, CAN Master/Slave, etc. (extension card is needed), Modbus RTU & ASCII
Control Methods

SVPWM, SVC (Sensorless Vector Control), VC (Vector Control with Encoder)
Dual Rating Capability

Dual Rating
EMC Filter

Input Voltage

Motor Compatibility

Asynchronous Motors, Synchronous motors
Mounting Type

Wall and Flange Mounting
Safety Features

User Interface

Multi-function LCD keypad

Specification

P (Normal Duty) Motor Rated Power 90
Rated Current 170
G (Heavy Duty) Motor Rated Power 75
Rated Current 150
Line Voltage, Frequency AC 3-ph. 380 V … 440 V (-15% … +10%), 50 Hz/60 Hz (± 5%)
Output Voltage 3-ph. 0 V … 480 V (max. input voltage)
Overload Capacity 150% for 60s in G setting (Heavy Duty), 120% for 60s in P setting (Normal Duty)
Output Frequency 0 … 590 Hz
Control Inputs  Analog: 2 inputs (AI1: 0 … 10 V / 0(4) … 20 mA; AI2: -10 … 10 V), optionally expandable
Digital: 6 programmable inputs, including 2 high-speed inputs (50 kHz) for speed setpoint or actual value via incremental or pulse encoders, optionally expandable
Control Outputs  Analog: 1 programmable output 0 … 10 V / 0(4) … 20 mA, optionally expandable
Digital: 2 programmable outputs, one of them high-speed (50 kHz), potential-free, optionally expandable
Relays: 2 programmable changeover contacts (NO/NC), optionally expandable
Interfaces RS485 (terminals) as standard, up to 3 freely configurable option interfaces for communication modules, terminal expansions, feedbacks, and PLC cards
Brake Chopper optional
EMC Filter Integrated IEC61800-3 C3; IEC61800-3 C1 & C2 optional
DC Reactor Integrated
Safety Functions Two-channel STO (Safe Torque Off) (IEC61800-5-2, SIL2, PL “d”)
Protection Rating IP20, optional IP55
Ambient Temperature -10°C … +50°C; power reduction required if ambient temperature exceeds +40°C, air cooling
Certification CE, TÜV
Dimensions / Weight 282 mm x 560 mm x 256 mm / 29 kg

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FAQ

What is the power rating of the INVT GD350A 90 kW (400 V) drive?
The INVT GD350A 90 kW (400 V) drive provides dual power ratings — 90 kW for Normal Duty and 75 kW for Heavy Duty applications, designed specifically for three-phase 400 V industrial power systems.

Which motor types can the INVT GD350A 90 kW control?
This drive supports both asynchronous (induction) and synchronous motors with advanced auto-tuning, ensuring optimized performance and efficiency for each motor type.

How does the GD350A 90 kW maintain stable operation under heavy loads?
It uses intelligent voltage and current control algorithms, robust overload capacity (up to 150 % current for 1 minute), and multiple braking modes to provide safe and stable operation in demanding industrial conditions.

What safety features does the GD350A 90 kW  include?
The drive integrates Safe Torque Off (STO) functionality for immediate power cut-off, protecting operators and ensuring compliance with machinery safety standards.

Can the INVT GD350A 90 kW (400 V) be monitored or controlled remotely?
Yes, optional Bluetooth or Wi-Fi modules allow wireless monitoring and control via the INVT Workshop mobile app, enabling remote access up to 30 meters.

Which connectivity options are available for the GD350A 90 kW?
The drive comes standard with Modbus RTU and supports optional modules for CAN, Profibus DP, and Profinet, enabling integration into a wide range of industrial networks.

How precise is motor control on the GD350A 90 kW?
It provides high control accuracy: ±0.2 % speed control (SVC mode), ±1 pulse position accuracy, starting torque up to 150 % for asynchronous motors at 0.25 Hz, and 200 % for synchronous motors at zero speed.

Is the INVT GD350A 90 kW suitable for pumps, conveyors, and HVAC systems?
Yes. Its low-speed torque, stable control, and reliable overload capacity make it ideal for industrial pumps, conveyors, HVAC systems, packaging, textiles, and other heavy-duty applications.

What maintenance or monitoring features does the GD350A 90 kW provide?
The drive includes a USB interface for logging operational data and diagnostics, and supports remote data management via PC or mobile app for efficient maintenance.

Can the GD350A 90 kW handle short power interruptions without stopping?
Yes, it features energy storage capabilities to maintain operation during brief power interruptions, ensuring continuous process control.

How easy is it to program and customize the INVT GD350A 90 kW (400 V)?
It offers a built-in PLC with 128 kB memory for tailored automation logic, an intuitive LCD control panel, and expansion slots for additional I/O, communication, or feedback modules to meet specific application needs.

Related Documents

Documentation for INVT GD350A 3-Phase 400V 90 kW:

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