Description
3HAC029818-001 DSQC663 Pressure Transmitter
When 3HAC029818-001 DSQC663 water consumption increases, the water pressure decreases, the pressure transmitter to the water pipe outlet changes in the actual pressure signal of the main pipe into a 4 ~ 20 ma standard signal sent to the intelligent pid regulator, pid loop regulator after arithmetic, resulting in adjusting the parameters sent to the inverter, so that the frequency converter’s output frequency rises, the speed of the water pump to increase the water pressure rises.
If 3HAC029818-001 DSQC663 water consumption increases a lot, so that the frequency converter output frequency reaches the maximum value (50hz), if the water supply pressure is still not able to make the pipe network water pressure to reach the set value, after a delay of 20s, the pid regulator sends out a control signal, through the PLC control unit to start a frequency pump p3 pump, if the pipe network water pressure still can not reach the set value, then delay! If the water pressure in the pipe network still can’t reach the set value, the delay time will be 20s, and then continue to start the industrial frequency pump.