Description
IC693CPU372-AE Remote control module
IC693CPU372-AE According to the size of the flow detected by the flow sensor, if the water output is reduced and the water pressure is too large, the plc controls the output frequency of the inverter to reduce the water output to stabilize the water pressure. If the output frequency of the frequency converter is 20hz, then plc starts timing, if the water pressure decreases, then give up the timing; if the water pressure has been higher than the set pressure, after a certain period of time, then according to the principle of the first to put in the first to stop, plc will first turn off the solenoid valve of the pump that is running for the longest input time, and then turn off the pump, until the water pressure reaches the set value.
IC693CPU372-AE for Yongcheng Coal and Electricity Company residents living water, which belongs to the water time is very strong system, so in the 5 pumps, 1 # -4 # pumps for the 75kw, 5 # pumps for the 45kw. Therefore, when the water in the valley of the water, a 45kw small power pump can be enough to maintain the water supply pressure, at this time, you can run through the frequency conversion of the 5 # small power pumps, so that it can work in a low-frequency state. Working in a low-frequency state, you can maintain the stability of the water supply system water pressure.
IC693CPU372-AE control system through the plc communication module cp340 to be located in the bureau logistics office of the host computer to send information, communication between the two using rs-485 mode. When a fault is found in the host computer, such as the water level of the reservoir is too low, you can notify the more open water wells and reverse osmosis devices to raise the water level of the reservoir to prevent the pumps due to the water level is too low caused by the phenomenon of dry pumping. As the system’s upper computer can be networked to publish, when there is a fault, and the field personnel can not be resolved, through the remote diagnostic function, by the manufacturer to help deal with.