The INVT GD20-0R7G-S2 is a 0.75kW single-phase compact frequency inverter from INVT's GD20 series, designed for cost-effective motor control in small industrial and commercial drive applications. Converting single-phase 200–240V input to three-phase output, this general-purpose drive powers small induction motors up to 0.75kW with reliable V/F and sensorless vector control. With built-in PID control, Modbus RTU communication, integrated braking chopper, and comprehensive protection functions, it is the practical drive solution for small pumps, fans, conveyors, food processing equipment, packaging machines, textile machinery, and general-purpose automation in locations served by single-phase utility power.
| Model | GD20-0R7G-S2 |
|---|---|
| Series | INVT GD20 General-Purpose Compact Inverter |
| Rated Power | 0.75 kW (1 HP) — G-Type Constant Torque |
| Input Voltage | Single-Phase 200–240V AC, 50/60Hz |
| Input Current | 8.2 A |
| Output Voltage | 3-Phase 0–240V (proportional to input) |
| Rated Output Current | 4.5 A (constant torque) |
| Output Frequency Range | 0.00–400.00 Hz |
| Frequency Resolution | 0.01 Hz (digital), 0.1% max frequency (analog) |
| Control Mode | V/F (linear, quadratic, multi-point), Sensorless Vector Control (SVC) |
| Starting Torque | SVC: 150% at 0.5Hz |
| Speed Control Range | SVC: 1:100 |
| Speed Control Accuracy | SVC: ±0.5% rated speed |
| Overload Capacity | G-Type: 150% rated current for 60s; 180% for 3s |
| Motor Types Supported | Three-phase induction motor (IM) |
| Braking Unit | Built-in braking chopper (external braking resistor optional) |
| Digital Inputs | 5 * multi-function DI (PNP/NPN selectable) |
| Analog Inputs | 1 * 0–10V / 4–20mA |
| Digital Outputs | 1 * relay output, 1 * transistor output |
| Analog Outputs | 1 * 0–10V / 4–20mA |
| Communication | RS485 Modbus RTU (standard) |
| Built-in Functions | PID controller, multi-speed (up to 16 speeds), S-curve acceleration, flying start, DC braking, slip compensation, AVR, torque boost, wobble frequency, simple PLC, timer control, parameter copy |
| Protection Features | Overcurrent, overvoltage, undervoltage, overload, overheating, output short-circuit, PTC motor protection, phase loss detection |
| Enclosure Rating | IP20 |
| Cooling Method | Forced air cooling (built-in DC fan) |
| Ambient Temperature | -10°C to +50°C (derating above 40°C) |
| Humidity | ≤90% RH, non-condensing |
| Altitude | ≤1000m (derating above 1000m) |
| Dimensions (W*H*D) | Approx. 85 * 185 * 142 mm |
| Net Weight | Approx. 1.5 kg |
| Certifications | CE, RoHS, ISO 9001 |