6.4.3 Function blockIEC08000004-2-en.vsdEF4PTOCI3P*U3P*I3PPOL*I3PDIR*BLOCKBLKST1BLKST2BLKST3BLKST4TRIPTR1TR2TR3TR4STARTST1ST2ST3ST4STFWSTRV2NDHARMDIEC08000004 V2 ENFigure 36: EF4PTOC function block6.4.4 SignalsTable 43:EF4PTOC Input signalsName Type Default DescriptionI3P GROUPSIGNAL- Three phase group signal for current inputsU3P GROUPSIGNAL- Three phase group signal for polarizing voltageinputsI3PPOL GROUPSIGNAL- Three phase group signal for polarizing currentinputsI3PDIR GROUPSIGNAL- Three phase group signal for operating directionalinputsBLOCK BOOLEAN 0 Block of functionBLKST1 BOOLEAN 0 Block of step 1 (start and trip)BLKST2 BOOLEAN 0 Block of step 2 (start and trip)BLKST3 BOOLEAN 0 Block of step 3 (start and trip)BLKST4 BOOLEAN 0 Block of step 4 (start and trip)Table 44:EF4PTOC Output signalsName Type DescriptionTRIP BOOLEAN General trip signalTR1 BOOLEAN Trip signal from step 1TR2 BOOLEAN Trip signal from step 2TR3 BOOLEAN Trip signal from step 3TR4 BOOLEAN Trip signal from step 4START BOOLEAN General start signalST1 BOOLEAN Start signal step 1Table continues on next pageSection 6 1MRK 511 287-UEN ACurrent protection94Technical manual
