Siemens SIMEAS R - Time Synchronization

18
18.4 Time Synchronization
273Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
18.4 Time Synchronization
Types of time synchronization
 Minute pulse synchronization: no time information
 GPS/DCF77 synchronization: second signal with date, time (UTC), etc
 Synchronization using Sync-Box 7KE6000-8HAx: second signal with date, time (UTC) etc.
Technical data
 Minute pulse synchronization
Drift per minute at 25 °C up to
±1.8 ms
 GPS/DCF77 synchronization
Accuracy of the synchronization signal acc. to example configuration figure 18-2: 5 µs
Signal voltage at the Sync-Transceiver output: DC 24 V
Recommended GPS timer
GPS satellite radio clock Hopf 6875 with modified SIPROTEC firmware (7XV5664-0AA00);
connection to the SIMEAS R-PMU via FO cable. Please observe the Application Description
"Time Synchronization SIMEAS R/SIMEAS R-PMU" under www.simeas.com.
Figure 18-2 Example configuration
GPS Clock
(Hopf 6875 )
GPS
Antenna
Lightning
Protection
FG4495 G0
DCF77 OUT
GPS IN
Sync-
Transceiver
BNC
SIMEAS R-PMU
FO (LWL)
BNC
CU
7XV5664-0AA00
7KE6000-8AK/L
7KE6100 -0/1x...