ABB REG670 Applications Manual page 702

Section 20
Station communication
696
• HwSyncSrc: set to PPS/IRIG-B depending on available outputs on the clock
• SyncLostMode: set to Block to block protection functions if time synchronization
is lost
• SyncAccLevel: can be set to 4μs since this corresponds to a maximum phase angle
error of 0.072 degrees at 50Hz
• fineSyncSource: should be set to IRIG-B if available from the clock. If PPS is used
for HWSyncSrc , "full-time" has to be acquired from another source. If station
clock is on the local area network (LAN) and has an sntp-server, this is one option.
Two status monitoring signals can be:
• SYNCH signal on the MUx function block indicates that protection functions are
blocked due to loss of internal time synchronization to the IED (that is loss of the
hardware synchSrc).
• MUSYNCH signal on the MUx function block monitors the synchronization flag
smpSynch in the datastream and IED hardware time synchronization.
No time synchronization
This example is not valid when GPS time is used for differential
protection, when PTP is enabled or when the PMU report is used.
IED
IEC/UCA 61850-9-2LE
Data
MU
IEC10000075=2=en=Original.vsd
IEC10000075 V2 EN
Figure 333: Setting example without time synchronization
It is also possible to use IEC/UCA 61850-9-2LE communication without time
synchronization.
Settings on the local HMI under Main menu/Configuration/Time/
Synchronization/TIMESYNCHGEN:1/IEC61850-9-2:
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
1MRK 502 071-UEN -
Application manual