ABB REB500 - Time Synchronization; Synchronizing Using IRIG-B; Synchronizing Using PPS

Section 3 1MRK 505 350-UEN
System Settings
30 Technical Manual
Distributed busbar protection REB500
A central unit signal can only be stored in the event memory in the central unit,
while a bay unit signal can be stored in either the event memory in the central unit
or in the bay unit or in both.
Table 27 Event memory storage strategy
Strategy Explanation
Keep the oldest (FIX)
No further events recorded when the memory is full
Keep the latest (FIFO)
The oldest event should be overwritten (ring buf
fer
)
Keep <n> old and latest
Keeps the given number of old events, then overwrite
3.7 Time synchronization
The following section lists the options for time-synchronizing the REB500 to an
external source.
These options can be selected using the HMI500 menu item “Settings – Time –
Time Synchronization”.
3.7.1 Synchronizing using IRIG-B
Electrical IRIG-B synchronization is supported using the X1008 connector on the
central unit.
Table 28 Connections for synchronizing with electrical IRIG-B
Connector Explanation
X100
8
.06
IRIG
-
B
-
X100
8
.07
IRIG
-
B_GNDC
X100
8
.
13
IRIG
-
B +
X100
8
.14
IRIG
-
B_GND
Optical IRIG-B synchronization is supported using the Rx-interface X1010 on the
central unit.
3.7.2 Synchronizing using PPS
Synchronization via PPS is supported both via an electrical or an optical pulse.
Electrical synchronizing impulses use the interface X1008 on the central unit.