Features: 
 ■ Professional power-saving function module for fan, pump characteristics, from the same set of software and hardware, professional development, the motor output power and load demand exact matching, energy-saving effect is obvious. 
 ■ the motor soft start and soft stop, the starting current of 6 times from 1.7 times dropped, the impact of the motor and substantially reduce power and improve the quality of electrical protection, soft start to gradually speed up, so wear of bearings and other mechanical components reduced life expectancy pump, pump side seal longevity, failure to reduce maintenance workload reduced. 
 ■ protection complete with over-current, over load, over voltage, under voltage, ground fault protection, instantaneous power failure protection, short circuit protection, DC over voltage protection and other protection functions, and the corresponding fault display. 
 ■ saving / bypass switching system can automatically track the power grid, faults, the system can automatically switch back to bypass, to achieve power saving / bypass switch smoothly to reduce shock, impact and delay production.