Pump station lift pump electronic control system often use float or input hydrostatic level gauge to detect water level, thereby controlling the pump to enhance the operation / stop and the number of pumps to enhance the pump to use more direct start. As the grill machine is difficult to filter all the sewage pipe clean, floating objects into the sewage pool (foam plastic, rotten strips, etc.) often attached to the float detector, resulting in malfunction of the float, so that the pump motor Frequent start / stop. Motor starting current is much larger than the rated current of operation, will shorten the life of the motor and pump and increase the failure rate. Float ball detector at the same time directly in the sewage, its maintenance and replacement is extremely inconvenient. Drop-in hydrostatic level meters also affect their accuracy due to the sludge at the bottom of the sump. If the installation position is too low and the sludge layer is high, the level of the sump can not be detected. Therefore, it is necessary to regularly clean the sump. In response to the above problems, Shenzhen City, Lu Lu Automation Technology Co., Ltd. developed the SPCS-2000 pumping station hoist pump electronic control system, not only solved the problem of contact level detector failure rate, while the control room can display sewage The actual level of the pool. The system is technologically advanced, reliable, unattended. The use of SPCS-2000 technology can also be the transformation of the existing electric control cabinet to a smaller investment, the same can enhance the advanced nature of electronic control system. Control methods are as follows: 1, the use of non-contact device level detection. Avoid frequent problems with float detectors and inaccurate and difficult-to-install static pressure detectors. 2, the pump motor can be used directly start, soft starter, inverter start (user specified one). 3. When multiple pumps are selected to run automatically before power on, the control system automatically starts the pump one by one (the number of pumps to be started is determined by the level) and the starting sequence is conveniently set by the operator. System start more than one pump minimum time interval of 20 seconds. Pump circulation to follow the "first open before the stop, after the open stop, stop the machine down, automatic make up" principle, to ensure that the corresponding level, there is a corresponding number of pumps in operation. Each pump running continuously for 2 hours (specified by the user) will automatically change the pump. 4, to facilitate the maintenance of submersible pumps, the system set up a "low water level mandatory boot" switch. Under normal circumstances, the automatic operation of the pump in the "full stop" stop; manual operation of the pump in the "low water level" alarm light all down. When this selection switch is closed, the manually operated water pump will drain dry sewage for easy maintenance of the hanging pump. 5, the system through long-term operation test, reliable performance, increase part of the equipment (remote communication) can achieve unattended operation.
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