This is a single-phase 220 V input frequency converter designed to drive a three-phase motor (motor connection must be configured in delta configuration). It features a four-digit LED display for clear visibility of operational data. The display shows heatsink temperature, output current, DC bus voltage, motor speed, and operating frequency. Output frequency range: 1.0–99.0 Hz. The unit uses Space Vector Pulse Width Modulation (SVPWM) with an 8.0 kHz carrier frequency to enhance output voltage quality. The V/F curve is adjustable via user-defined compensation frequency and voltage ratio settings. The maximum V/F curve point can be set to optimize energy efficiency according to load conditions, reducing motor heat and extending the service life of both motor and drive. Delivers high torque at low frequencies. Input: 220 V single-phase; Output: 220 V three-phase. Includes overheat and overvoltage protection. Specifications: Name: Frequency Converter Input Voltage: AC 220 V ±20% Input Frequency: 50/60 Hz Output Frequency Range: 1.0–99.0 Hz Output Speed Range: 0–3000 rpm Adjustable Speed Range: 0–1800 rpm Rated Power: 0.75 kW Operating Temperature: –10°C to +55°C Operating Humidity: 0–65% RH (non-condensing) Dimensions: 143 × 100 × 61 mm (5.63 × 3.94 × 2.40 in) Weight: 362 g (0.80 lb) Color: Black Housing Material: ABS plastic Package Contents: 1 × Frequency Converter 1 × English User Manual Note: Actual product color may vary slightly due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 mm.