GD300-2R2G-4 Variable Frequency Drive GD300 2.2kW 3-ф/380

GD300-2R2G-4 — three-phase frequency inverter from INVT GD300 series, rated at 2.2 kW active power capacity (nominal output current 5 A) for electrical grids with 3-phase 380V supply voltage. The VFD supports sensorless vector control (SVC) and scalar V/F control, delivering smooth motor speed adjustments and dynamic torque response. The device features IP20 protection standard, integrated EMC filter, built-in braking unit, and built-in Modbus RTU RS-485 communication interface.

Typical Applications:

• Industrial conveyors, mixers, extruders, and packaging machine drive systems.
• HVAC fans and automated pump systems utilizing built-in PID controller for constant pressure hold.

Please Note: Perform motor autotuning (rotating or static) before first system startup. When installing motor cables longer than 50 meters, an output reactor (du/dt filter) is highly recommended to protect motor winding isolation from voltage spikes.

INVT GD300 — High-Performance Vector Drive for Induction and PMS Motors

The Goodrive300 (GD300) series represents a premium engineering variable frequency platform powered by Texas Instruments' 32-bit DSP processor. The core technology advantage of the drive is its hybrid motor compatibility: it handles highly dynamic sensorless vector control of both standard induction AC motors and modern energy-efficient permanent magnet synchronous motors (PMSM). The series outputs exceptional low-speed breakaway torque (150% rated torque down to 0.25 Hz), demonstrates superior voltage-sag riding capability, supports a wealth of protocol expansion cards (Profibus-DP, Ethernet), and holds TÜV SÜD safety certification.

GD300 Ideal Applications

• Rotary screw and gas compressors: Exact pressure maintenance under volatile demand profiles, driving high-speed PMSM motors in the flux-weakening speed range.
• Heavy-duty industrial extruders and mixers: Steady torque maintenance at slow speeds under highly viscous compounds without causing motor stalls or overcurrent trips.
• Textile and winding machinery: Closed-loop tension control of yarns or strips owing to the drive's prompt dynamic response to torque shifts (under 20 ms).

What Sets GD300 Apart From Competitors

GD300 provides full vector control of modern high-performance permanent magnet synchronous motors (PMSMs) without forcing the user to purchase expensive encoder interfaces, drastically lowering capital costs on compressor automation.

When GD300 is NOT Suitable

• If your configuration demands closed-loop shaft locking at zero speed, precise angular position synchronization, or dynamic tensioning using rotary encoder cards, upgrade to the flagship smart series INVT GD350.
• For basic large-scale pumping setups using conventional AC induction motors, selecting the dual-rated INVT GD200A series is more economically viable.

Our Practical Experience with GD300

The GD300 series demonstrates incredible performance stability when coupled with permanent magnet synchronous motors (PMSM). Motor auto-tuning is absolutely critical here: we strongly suggest conducting a full dynamic auto-tuning run (set parameter P00.15 = 1). This computes the exact back-EMF of the PMSM, avoiding starting jerkiness and trimming low-frequency energy draw by up to 15%.