An external time source can be used to synchronize both the IED and the MU. It is also
possible to use the MU as a clock master to synchronize the IED from the MU. When
using an external clock, it is possible to set the IED to be synchronized via PPS, IRIG-
B or PTP. It is also possible to use an internal GPS receiver in the IED (if the external
clock is using GPS).
Using PTP for synchronizing the MU
SAM600 VT SAM600 CT
SAM600 TS
IED
PTP
9-2
IEC17000040-1-en.vsdx
IEC17000040 V1 EN
Figure 330: Setting example with PTP synchronization
Settings on the local HMI under Main menu/Configuration/Time/
Synchronization/TIMESYNCHGEN:1/IEC61850-9-2:
• HwSyncSrc: is not used as the SW-time and HW-time are connected with each
other due to PTP
• SyncLostMode : set to Block to block protection functions if time synchronization
is lost or set to BlockOnLostUTC if the protection functions are to be blocked
when global common synchronization is lost
• SyncAccLevel: can be set to 1μs since this corresponds to a maximum phase angle
error of 0.018 degrees at 50Hz
1MRK 502 071-UEN - Section 20
Station communication
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 693
Application manual
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