Voltage and protection - DC input range: 200V to 400V. Below 200V, a low-voltage alarm triggers and the unit stops. Above 400V, output is limited to prevent surge and the unit stops. Solar panel string compatibility - For 220V motors: total series voltage must be 200V to 400V. - For 380V motors: total series voltage must be 400V to 700V. - The series solar string power is designed to be more than 1.2 times the inverter power. MPPT regulator and automatic operation - Built-in MPPT regulator with automatic start and stop. When daylight raises the input to 200V, the inverter automatically starts and drives the load. When daylight falls and input drops below 200V, it automatically stops the load with no manual operation. Applications and use scenarios - The motor drive equipment can completely replace the photovoltaic inverter. - The photovoltaic inverter is suitable for driving motors and motor loads only. - Suitable for solar power generation with motor-driven water pumps. Use scenarios - Off-grid irrigation: powers a water pump directly from a solar array. - Solar-powered motor drives in workshops or remote facilities (220V or 380V systems). - Solar pumping for wells or reservoirs in rural areas.