For further information on warning indications, see the operation manual.3.3 LED indication controlThe IED includes a global conditioning function LEDPTRC that is used with theprotection indication LEDs.LED indication control should never be used for tripping purposes.There is a separate trip logic function TRPPTRC available in theIED configuration.LED indication control is preconfigured in a such way that all the protectionfunction general start and operate signals are combined with this function(available as output signals OUT_START and OUT_OPERATE). These signals arealways internally connected to Start and Trip LEDs. LEDPTRC collects andcombines phase information from different protection functions (available asoutput signals OUT_ST_A /_B /_C and OUT_OPR_A /_B /_C). There isalso combined earth fault information collected from all the earth fault functionsavailable in the IED configuration (available as output signals OUT_ST_NEUT andOUT_OPR_NEUT).3.4 Programmable LEDs3.4.1 Function blockGUID-00339108-34E4-496C-9142-5DC69F55EE7A V1 ENFigure 8: Function block3.4.2 FunctionalityThe programmable LEDs reside on the right side of the display on the LHMI.1YHT530004D05 D Section 3Basic functions615 series 63Technical Manual
