TB XRI1-IE 11.01 E
13
5.1.1
Indication of measuring values
and fault data
Indication in faultless condition
In normal operation the display always shows |SEG.
After pressing the push button <SELECT/RESET> the
display switches cyclically to the next measuring value.
After the measuring values had been indicated the set-
ting parameters are displayed. Hereby the LEDs in the
upper section signalize which measured value is indi-
cated, the LEDs in the lower section signalize which
setting parameter is indicated on the display. Longer
actuating the push button resets the relay and the dis-
play changes into normal operation (|SEG).
Indication after pickup / tripping
All of the faults detected by the relay are indicated on
the front plate optically. Here not only the faults are
indicated but also the faulty phase(s) and the protec-
tion function in operation. At pickup the LEDs are flash-
ing, after tripping this changes to continuous light.
In tripped condition "TRIP" appears on the display and
the LEDs of the operating measuring data light up red
together with the LEDs of the tripping parameter. All
operating data, which were measured at the moment
of tripping, can now be called one after another by
pressing push button <SELECT/RESET>. If in this condi-
tion setting parameters are to be indicated, push but-
ton <ENTER> has to be pressed.
The graphic below shows again the difference be-
tween the different display modes.
<SELECT>
<SELECT>
<SELECT>
<ENTER>
|SEG
TRIP
<SELECT>
<SELECT>
<ENTER>
<SELECT>
Display after tripping
Display in normal operation
Tripping
<RESET>
Measuring data
Parameter
Parameter
Failure data
Figure 5.2: Switching over of the display in dependence of the operating mode
