INVT GD20-EU 55 kW Frequency Inverter (400 V Three-Phase VFD)

Description

The INVT GD20-EU 55 kW (400 V three-phase) frequency inverter is designed for demanding industrial environments. It provides precise control of motors using advanced V/f and sensorless vector modes, integrates robust safety features like STO, and offers extensive communication interfaces for seamless integration with PLC and SCADA systems.

Ideal for HVAC systems, pumps, fans, conveyors, and other motor-driven equipment, the GD20-EU 55 kW ensures reliable, energy-efficient operation while supporting high-load industrial processes.

Key Specifications

• Motor Rated Power: 55 kW

• Supply Voltage: 400V AC, Three Phase (3~)

• Control Modes: V/f control for standard operation and sensorless vector control (SVC) for high-precision speed and torque regulation

• Speed Accuracy: ±0.2% (in SVC mode)

• Starting Torque: 150% torque at 0.5 Hz (SVC)

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

Versatile Motor Operation & Control

The GD20-EU 55 kW supports multiple motor control methods, including traditional V/f and advanced sensorless vector control. This flexibility makes it ideal for a broad range of industrial machinery such as pumps, conveyors, compressors, HVAC systems, and more. With up to 16-step speed control and customizable V/f curves (linear, multi-point, multi-power, and V/f separation), you can fine-tune motor performance to precisely match your load requirements.

Enhanced Safety & Reliability

• Safe Torque Off (STO): Immediate motor torque shutdown to protect personnel and equipment during maintenance or emergency stops.

• Built-in EMC C3 Filters: Minimize electromagnetic interference, ensuring compliance with stringent industrial standards.

• Integrated Braking Unit: Facilitates smooth, controlled motor deceleration without the need for additional hardware.

• Comprehensive Protection: Overcurrent, overvoltage, undervoltage, overheating, and overload protections safeguard your system for maximum uptime.

Smart Connectivity & Control

• Communication Ports: RS485 interface supports MODBUS RTU and ASCII protocols for seamless integration with PLCs, SCADA, and automation systems.

• Flexible I/O Configuration: Includes 2 analog inputs, 1 analog output, 4 digital inputs, 1 high-speed input (up to 50 kHz), 1 digital output, and 2 programmable relay outputs, allowing sophisticated control and monitoring.

• External LED Keypad: Doubles as a user-friendly interface for quick parameter configuration and duplication.

Energy Efficiency & Monitoring

Compatible with common DC bus architectures for energy sharing across multiple drives, the GD20-EU 55 kW helps reduce system costs and improve overall efficiency. Its built-in battery capacity display allows real-time energy consumption tracking without the need for extra meters.

Application Suitability

Ideal for heavy-duty industrial environments including:

• Pumps and fans in HVAC systems

• Conveyors and material handling

• Water and wastewater treatment

• Textile, plastics, printing, and packaging industries

• Machine tools and woodworking equipment

• Cable manufacturing and environmental systems

Why Choose the INVT GD20 55 kW ?

• Effortless static and dynamic motor parameter autotuning for optimized performance

• High starting torque and accurate speed control to handle demanding industrial loads

• Built-in PID control for precise temperature, pressure, and flow regulation

• Programmable delay timers for efficient sequential operations

• Wide frequency range with strong overload capabilities

• Proven durability and compliance with international certifications

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

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