One undervoltage step with definite time characteristic is also available with thefunction in order to provide funcionality for overcurrent protection withundervoltage seal-in.7.10.3 Function blockVR2PVOCI3P*U3P*BLOCKBLKOCBLKUVTRIPTROCTRUVSTARTSTOCSTUVIMAXUUMINIEC10000118-1-en.vsdIEC10000118 V1 ENFigure 109: VR2PVOC function block7.10.4 SignalsTable 119:VR2PVOC Input signalsName Type Default DescriptionI3P GROUPSIGNAL- Three phase group signal for current inputsU3P GROUPSIGNAL- Three phase group signal for voltage inputsBLOCK BOOLEAN 0 Block of function both stagesBLKOC BOOLEAN 0 Block of voltage restraint overcurrent stage (ANSI51V)BLKUV BOOLEAN 0 Block of under voltage functionTable 120:VR2PVOC Output signalsName Type DescriptionTRIP BOOLEAN General trip signalTROC BOOLEAN Trip signal from voltage restraint overcurrent stageTRUV BOOLEAN Trip signal from undervoltage functionSTART BOOLEAN General start signalSTOC BOOLEAN Start signal from voltage restraint overcurrentstageSTUV BOOLEAN Start signal from undervoltage functionIMAX REAL Maximum phase current magnitudeUUMIN REAL Minimum ph-to-ph voltage magnitude1MRK 502 034-UEN - Section 7Current protection211Technical Manual
