PID-3581-OUTPUTSIGNALS v6Table 240:ECPSCH Output signalsName Type DescriptionTRIP BOOLEAN Trip signal by communication scheme logicCS BOOLEAN Carrier Send by Communication Scheme LogicCRL BOOLEAN Carrier Receive from Communication SchemeLogicLCG BOOLEAN loss of carrier guard signal13.4.5 SettingsPID-3581-SETTINGS v6Table 241:ECPSCH Group settings (basic)Name Values (Range) Unit Step Default DescriptionOperation OffOn- - Off Operation Off / OnSchemeType OffIntertripPermissive URPermissive ORBlocking- - Permissive UR Scheme type, Mode of OperationtCoord 0.000 - 60.000 s 0.001 0.035 Communication scheme coordinationtimetSendMin 0.000 - 60.000 s 0.001 0.100 Minimum duration of a carrier sendsignalTable 242:ECPSCH Group settings (advanced)Name Values (Range) Unit Step Default DescriptionUnblock OffNoRestartRestart- - Off Operation mode of unblocking logictSecurity 0.000 - 60.000 s 0.001 0.035 Security timer for loss of carrier guarddetection13.4.6 Operation principleM13922-4 v5The four step directional residual overcurrent protection EF4PTOC is configured togive input information, that is directional fault detection signals, to the ECPSCHlogic:1MRK 505 394-UEN A Section 13Scheme communicationLine differential protection RED650 2.2 IEC 419Technical manual
