INVT GD20-0R4G-S2 Compact AC Drive Single Phase Converter

The INVT GD20-0R4G-S2 is a 0.4kW (0.5HP) high-performance vector control variable frequency drive from the GD270 series, engineered for precise motor speed and torque regulation in demanding industrial applications. Operating from three-phase 380V input, this drive supports both open-loop sensorless vector control (SVC) and closed-loop vector control (FVC) with encoder feedback. With built-in braking chopper, integrated Class C3 EMC filter, standard Modbus RS485 communication, rich multi-function I/O, and comprehensive protection features, it is the ideal drive for pumps, fans, compressors, conveyors, mixers, textile machinery, and general industrial automation applications.

• Advanced Vector Control VFD — 4kW rating with open-loop and closed-loop vector control delivering high starting torque (150% at 0.5Hz) and precise speed regulation for demanding applications
• High-Performance Motor Drive — Proven INVT GD270 platform with 32-bit DSP processor, 150% overload for 60s (180% for 10s), and coated PCBA for harsh industrial environments
• Built-in Braking Unit — Integrated braking chopper as standard, eliminating the need for external braking modules and reducing installation cost and cabinet panel space
• Multi-Protocol Communication — Standard Modbus RS485 interface with optional Profibus-DP, CANopen, and PROFINET expansion cards for seamless PLC and SCADA system integration
• Built-in EMC Filter — Integrated Class C3 EMC filter as standard (EN 61800-3), ensuring compliance with industrial electromagnetic compatibility standards without external filtering components
• Easy Commissioning — Detachable LED keypad with parameter copy and upload function; auto-tuning wizard for motor parameter identification enables quick and accurate drive setup in minutes
• Energy-Efficient Operation — Advanced PWM algorithm and automatic energy-saving mode for quadratic torque loads (pumps, fans), reducing energy consumption by up to 30% in variable torque applications
• Wide Application Coverage — Pre-configured application macros for common industrial tasks; supports multiple V/F curves, multi-step speed (up to 16 fixed speeds), PID control, flying start, and wobble frequency