analog inputs, refer to Application manual/IED application/Analog inputs/Setting guidelines.10.3.3 Function block M14968-3 v6IEC06000281-2-en.vsdSAPFRCU3P*BLOCKBLKTRIPBLKRESTTRIPSTARTRESTOREBLKDMAGNIEC06000281 V2 EN-USFigure 131: SAPFRC function block10.3.4 SignalsPID-6754-INPUTSIGNALS v2Table 146:SAPFRC Input signalsName Type Default DescriptionU3P GROUPSIGNAL- Three phase group signal for voltage inputsBLOCK BOOLEAN 0 Block of functionBLKTRIP BOOLEAN 0 Blocking operate outputBLKREST BOOLEAN 0 Blocking restore outputPID-6754-OUTPUTSIGNALS v2Table 147:SAPFRC Output signalsName Type DescriptionTRIP BOOLEAN Trip signalSTART BOOLEAN Start signalRESTORE BOOLEAN Restore signal for load restoring purposesBLKDMAGN BOOLEAN Blocking indication due to low amplitude10.3.5 SettingsPID-6754-SETTINGS v2Table 148:SAPFRC Group settings (basic)Name Values (Range) Unit Step Default DescriptionOperation OffOn- - Off Operation Off / OnStartFreqGrad -10.00 - 10.00 Hz/s 0.01 0.50 Frequency gradient start value, the signdefines directionIntBlockLevel 0.0 - 100.0 %UB 1.0 50.0 Internal blocking level in % of UBasetDelay 0.000 - 60.000 s 0.001 0.200 Operate time delayTable continues on next pageSection 10 1MRK 505 394-UEN AFrequency protection278 Line differential protection RED650 2.2 IECTechnical manual
