5-132 C30 Controller System GE Multilin5.7 INPUTS AND OUTPUTS 5 SETTINGS55.7.11 TELEPROTECTION INPUTS AND OUTPUTSa) OVERVIEWThe relay provides sixteen teleprotection inputs on communications channel 1 (numbered 1-1 through 1-16) and sixteenteleprotection inputs on communications channel 2 (on two-terminals two-channel and three-terminal systems only, num-bered 2-1 through 2-16). The remote relay connected to channels 1 and 2 of the local relay is programmed by assigningFlexLogic operands to be sent via the selected communications channel. This allows the user to create distributed protec-tion and control schemes via dedicated communications channels. Some examples are directional comparison pilotschemes and direct transfer tripping. It should be noted that failures of communications channels will affect teleprotectionfunctionality. The teleprotection function must be enabled to utilize the inputs.b) TELEPROTECTION INPUTSPATH: SETTINGS INPUTS/OUTPUTS TELEPROTECTION TELEPROT INPUTSSetting the TELEPROT INPUT ~~ DEFAULT setting to “On” defaults the input to logic 1 when the channel fails. A value of “Off”defaults the input to logic 0 when the channel fails.The “Latest/On” and “Latest/Off” values freeze the input in case of lost communications. If the latest state is not known,such as after relay power-up but before the first communication exchange, then the input defaults to logic 1 for “Latest/On”and logic 0 for “Latest/Off”. TELEPROT INPUTSTELEPROT INPUT 1-1DEFAULT: OffRange: Off, On, Latest/Off, Latest/OnMESSAGE TELEPROT INPUT 1-2DEFAULT: OffRange: Off, On, Latest/Off, Latest/OnMESSAGE TELEPROT INPUT 1-16DEFAULT: OffRange: Off, On, Latest/Off, Latest/OnMESSAGE TELEPROT INPUT 2-1DEFAULT: OffRange: Off, On, Latest/Off, Latest/OnMESSAGE TELEPROT INPUT 2-2DEFAULT: OffRange: Off, On, Latest/Off, Latest/OnMESSAGE TELEPROT INPUT 2-16DEFAULT: OffRange: Off, On, Latest/Off, Latest/On
