ABB REG670 - Page 700

Settings on the local HMI under Main menu/Configuration/Communication/
Ethernet configuration/Access point/AP_X:
• Operation: On
• PTP: On
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
• MUSYNCH signal on the MUx function block monitors the synchronization flag
smpSynch in the datastream and IED hardware time synchronization.
Using MU for time synchronization via PPS
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
MU
Analog data
PPS
IEC/UCA 61850-9-2LE
Synchronization
IEC10000061=2=en=Original.vsd
IEC10000061 V2 EN
Figure 331: Setting example when MU is the synchronizing source
Settings on the local HMI under Main menu/Configuration/Time/
Synchronization/TIMESYNCHGEN:1/IEC61850-9-2:
• HwSyncSrc: set to PPS as generated by the MU (ABB MU)
• 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
Section 20 1MRK 502 071-UEN -
Station communication
694 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual