• Main menu/Configuration/Analog modules/MUx:92xx. The correspondingsettings are also available in PST (PCM600).• Main menu/Configuration/Communication/Merging units configuration/MUx:92xx. The corresponding settings are also available in ECT (PCM600).XX can take value 01–12.21.3.2.1 Specific settings related to the IEC/UCA 61850-9-2LEcommunication SEMOD166590-24 v6The process bus communication IEC/UCA 61850-9-2LE has specific settings,similar to the analog inputs modules.If there are more than one sample group involved, time synch is mandatory. If thereis no time synchronization, the protection functions will be blocked due tocondition blocking.CTStarPointx: These parameters specify the direction to or from object. See alsosection "Setting of current channels".SyncLostMode: If this parameter is set to Block and the IED hardware timesynchronization is lost or the synchronization to the MU time is lost, the protectionfunctions in the list 59 will be blocked due to conditional blocking. If thisparameter is set to BlockOnLostUTC, the protection functions in list 59 are blockedif the IED hardware time synchronization is lost or the synchronization of the MUtime is lost or the IED has lost global common synchronization (i.e. GPS, IRIG-Bor PTP). SYNCH output will be set if IED hardware time synchronization is lost.MUSYNCH output will be set if either of MU or IED hardware timesynchronization is lost.21.3.2.2 Loss of communication when used with LDCM GUID-29EFBCB7-2B4F-4AA1-B593-8E89838722E0 v4If IEC/UCA 61850-9-2LE communication is lost, see examples in figures 409, 410and 411, the protection functions in table 59 are blocked as per gracefuldegradation.Case 1:1MRK 506 369-UEN B Section 21Station communicationLine distance protection REL670 2.2 IEC 817Application manual
