The inputs from the protection functions are connected to the OPERATE input.Usually, a logic block OR is required to combine the different function outputs tothis input. The TRIP output is connected to the binary outputs on the IO board.This signal can also be used for other purposes within the IED, for example whenstarting the breaker failure protection.TRPPTRC is used for simple three-phase tripping applications.BI#4Lock-outresetORPO#1BI#2TRPPTRCOPERATERST_LKOUTTRIPCCRBRF-trretT1PTTR-operateCBXCBR-openPHLPTOC-operatePHHPTOC1-operatePHHPTOC2-operatePHIPTOC-operateNSPTOC1-operateNSPTOC2-operateEFLPTOC1-operateEFHPTOC-operateEFIPTOC-operatePDNSPTOC-operateEFLPTOC2-operateARCPSARC1-operateARCPSARC2-operateARCPSARC3-operateDARREC-open cbBLOCK CL_LKOUTA070881 V2 ENFigure 293: Typical TRPPTRC connection5.3.6 SignalsTable 471:TRPPTRC Input signalsName Type Default DescriptionBLOCK BOOLEAN 0=False Block of functionOPERATE BOOLEAN 0=False Request to trip circuit breaker.RST_LKOUT BOOLEAN 0=False Input for resetting the circuit breaker lockoutfunctionTable 472:TRPPTRC Output signalsName Type DescriptionTRIP BOOLEAN General trip output signalCL_LKOUT BOOLEAN Circuit breaker lockout output (set until reset)Section 5 1YHT530004D05 DProtection related functions554 615 seriesTechnical Manual