SIPROTEC
®
4 Devices
4-30
7SA6 Manual
C53000-G1176-C156-2
4.13 Time Synchronization
Time tracking in a SIPROTEC
®
4 device can be implemented using:
G DCF77 Radio Receiver (Time Signal from PTB Braunschweig),
G IRIG-B Radio Receiver (Time Signal from the global positioning satellite (GPS) sys-
tem),
G signals via the system interface from, for example, a substation control system,
G radio clock using a system-specific synchronizer box,
G minute impulses on a binary input.
Time signal generators are connected via a 9-pin D-subminiature port on the back
panel of the device.
Setting of the time synchronization is done exclusively with DIGSI
®
4:
• Double click on Time Synchronization in the data window and enter the set-
tings.
Figure 4-26 DIGSI
®
4, setting of the time synchronization — example
Read-out on the
Operator Control
Panel
Using the SIPROTEC
®
4 device operator control panel, the time synchronization set-
tings can be retrieved: Main Menu → Settings → Setup/Extras → Clock Set-
up.
.
Figure 4-27 Read-out of time synchronization settings from the operator control panel
CLOCK SETUP 01/03
---------------------
Offset 0min
Error Time 2min
Source Internal
SETUP/EXTRAS 02/06
---------------------
Date/Time –> 1
Clock Setup –> 2
Serial Ports –> 3
Device-ID –> 4
MLFB/Version –> 5 5
Contrast –> 6
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