• Main menu/Configuration/Analog modules/MUx:92xx. The corresponding
settings 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 61850-9-2LE
communication
SEMOD166590-24 v6
The 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 there
is no time synchronization, the protection functions will be blocked due to
condition blocking.
CTStarPointx: These parameters specify the direction to or from object. See also
section
"Setting of current channels".
SyncLostMode: If this parameter is set to Block and the IED hardware time
synchronization is lost or the synchronization to the MU time is lost, the protection
functions in the list 59 will be blocked due to conditional blocking. If this
parameter is set to BlockOnLostUTC, the protection functions in list 59 are blocked
if the IED hardware time synchronization is lost or the synchronization of the MU
time is lost or the IED has lost global common synchronization (i.e. GPS, IRIG-B
or 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 time
synchronization is lost.
21.3.2.2 Loss of communication when used with LDCM
GUID-29EFBCB7-2B4F-4AA1-B593-8E89838722E0 v4
If IEC/UCA 61850-9-2LE communication is lost, see examples in figures
409, 410
and
411, the protection functions in table 59 are blocked as per graceful
degradation.
Case 1:
1MRK 506 369-UEN B Section 21
Station communication
Line distance protection REL670 2.2 IEC 817
Application manual
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