... of Sanyu (Sanyu patent), was speciallly designed for standard load and heavy load.2.The only on-line soft starter..the only on ... standard protocol...7, analog output ,0-20mA / 4-20mA to switch...8, motor preheat function. 9, built-in protection box PIC ... the control parameters... 11, dynamic fault memory.. 12, electrical parameters, load conditions and running time.. 13, LCD liquid crystal display. 14 ...