12.15.7 Monitored DataTable 417:SPVNZBAT Monitored dataName Type Values (Range) Unit DescriptionBATTVOLT REAL - kV Service value of thebattery terminal voltage12.15.8 Operation principleThe function can be enabled and disabled with the Operation setting. Thecorresponding parameter values are "On" and "Off".The function execution requires that at least one of the functionoutputs is connected in configuration.The operation of the station battery supervision function can be described by using amodule diagram. All the modules in the diagram are explained in the next sections.GUID-9ACD1EE5-61C1-4CB8-9AF0-6F43292FC547 V2 ENFigure 227: Functional module diagramThe battery rated voltage is set with the RtdBattVolt setting. The value of theBattVoltLowLim and BattVoltHiLim settings are given in relative per unit to theRtdBattVolt setting.It is possible to block the function outputs by the BLOCK input.Low level detectorThe level detector compares the battery voltage U_BATT with the set value of theBattVoltLowLim setting. If the value of the U_BATT input drops below the set valueof the BattVoltLowLim setting, the start signal ST_ULOW is activated.The measured voltage between the battery terminals U_BATT is available through theMonitored data view.Section 12 1MRK 511 287-UEN AMonitoring482Technical manual
