220V Single-phase Input Three-phase Output Motor Driver Frequency Converter with Four-digit Digital Display This is a single-phase 220V voltage input frequency converter designed to drive a three-phase motor. Features a 4-digit digital tube display for clear data reading. Supports monitoring of radiator temperature, output current, DC bus voltage, motor speed, and operating frequency. Output frequency range: 1.0–99.0Hz. Utilizes SVPWM modulation mode with a carrier frequency of 8.0kHz to enhance output voltage performance. Allows adjustable frequency-voltage curve by modifying compensation settings for optimized control. Adjustable V/F curve maximum value based on load conditions to improve energy efficiency, reduce motor heat, and extend the lifespan of both motor and inverter. Color: Black Material: ABS Package Contents: 1 x Frequency Converter Note: Light reflection and differences in display screens may cause slight variations between the product color in images and actual color. Measurement error allowed: ±1–3 cm.