Bianco NXT FlexiSolar Variable Speed Drive Controller with Hybrid AC/DC Convertor

The NXT FLEXI-SOLAR pump controller is a variable speed drive designed for three-phase asynchronous motors and permanent magnet synchronous motors. The controller provides motor soft-start, speed control, fault detection and motor protection.

The incoming power source can be DC, AC or a combination of both. High-voltage DC power from a solar array is converted into AC power to drive the pump. When the solar energy drops, the controller can automatically switch to a backup AC power source, such as generator or battery storage In situations of poor power supply (low solar irradiation or ‘brown’ power) the controller adjusts to maintain the output voltage and decreases the pump speed to match the available energy, protecting the system components from harm.

Typically, the NXT FLEXI-SOLAR pump controller will run when there is a demand for water and sufficient energy is available. When a water demand is detected, the controller slowly increases the motor speed while gradually increasing the motor voltage. The motor temperature and starting current of the solar water pump system are lower than DOL starting, extending the life expectancy of the motor.