Earth Fault Messages - Siemens siprotec 7SA6 User Manual

Figure 7-9 Example of fault messages in DIGSI
7.1.1.4

Earth Fault Messages

From the
Device Front
7SA6 Manual
C53000-G1176-C133-1
®
Devices with sensitive earth fault detection provide special earth fault logs. The earth
faults are registered if the earth fault detection function is set to "OFF" (Address 
= $ODUP 2QO\) and an earth fault was already in queue so that the trip delay (7
6HQV()) could expire.
Up to 200 earth fault messages can be stored for the last 8 earth faults.
All available indications are displayed and explained in Appendix B. In a specific case,
of course, only the applicable messages appear on the display.
With a device ready for operation, first press the
The first menu item ($QQXQFLDWLRQ) is marked.
key to enter the $1181&,$7,21 sub-menu (see Figure 7-1).
Press the
key, select the sub-menu item (DUWK )DXOW 0HVVDJHV and move to
Using the
the earth fault logs using the
appears.
In this sub-menu, the indications for the last 3 network faults can be selected, again
using the and keys. See the example in Figure 7-10.
If no messages are present for a fault, then entrance is denied and "/LVW (PSW\" is
displayed.
The messages within an earth fault log are listed in chronological order and numbered
consecutively, from the oldest to the newest ones.
The inception of an earth fault is identified with the date (without indication of the year)
and time in hours, minutes, and seconds (resolution = 1 ms). See the example in
Figure 7-10.
4
key. The ($57+ )$8/7 0(66$*(6 selection
Control During Operation
key. The 0$,1 0(18 appears.
MENU
7-9