MP 1, SQE-NE, SPA-NE, SP-NE - SCL Water

Examples of applicationsSubmersible pumpsSQE-NECommunicationCU 300 control unitThe CU 300 is a control and communication unitspecially developed for the SQE-NE submersiblepumps.LEDalarmindicationOn/Off buttonwith red andgreen indicatorlightsThe CU 300 control unit provides• easy adjustment to a specific borehole• full control of the SQE-NE pumps• two-way communication with the SQE-NE pumps• alarm indication of pump operation by diodes on thefront• the possibility of starting, stopping and resetting thepump simply by means of a push-button.The CU 300 communicates with the pump via the powersupply cable. This is called mains-borne signalling orpower line communication. Using this concept meansthat no extra cables between the CU 300 and the pumpare required.The following alarms can be indicated by the CU 300:• No contact• Overvoltage• Undervoltage• Dry running• Speed reduction• Overtemperature• Overload• Sensor alarm.The CU 300 incorporates• external signal input for two analog sensors and onedigital sensor• relay output for external alarm indication• control according to the signals received, e.g.concerning flow, pressure, water level andconductivity.Furthermore, the CU 300 offers the possibility of remotecontrol.Fig. 21 CU 300 frontPower supply entrySubmersible dropcable entry195Fig. 22 CU 300 cable entriesFig. 23 CU 300 dimensionsDimensions stated in mm.IR communicationExtra cable entriesFieldbus entrySensor entry232 114TM01 2760 4801TM01 2761 4801TM01 2781 4601R100 remote controlWireless infrared remote control of the CU 300 ispossible with the R100.With the R100 it is possible to monitor and change theoperating parameters, see the R100 menu overview onpage 26. The R100 is a strong tool in case fault findingis required.25