Working process of variable frequency constant pressure water supply system
Working process of variable frequency constant pressure water supply systemWorking process of variable frequency constant pressure water supply cycle switching control : Inverter connect with in the first pump motor need to add pump must stop frequency inverter, and the process of output signal by output port RO1 to RO3switch to PLC controlled by PLC. At the beginning of switching, stop the output (inverter is arranged f...
View details >>