Siemens siprotec 7SA6 User Manual page 36

Hardware and Connections
View of Front Panel
with Graphic
Display
1
(Housing Size / )
1
SIEMENS
LED
Figure 2-5 Front view of a 7SA63, housing size
2-8
7. CTRL key
The function of this key is to show the control display.
8. Key-operated switch
2 key-operated switches guarantee a fast, but save access to the functionalities
„changing between local and remote" and „changing between interlocked and
non-interlocked operation".
9. 9-pin female D-subminiature connector
This serial interface is for the connection of a local PC running DIGSI
10. LED key
This key has the dual purpose of resetting latched LEDs and the latched contacts
of output relays, as well as testing all of the LEDs.
11. Light emitting diodes (LEDs)
The function of the 7 LEDs can be programmed. There is a vast selection of sig-
nals from which to choose. Some examples are device status, processing or con-
trol information, and binary input or output status. Next to the LEDs on the front
panel, a labeling strip is provided on which the user-specified LED functions may
be written.
12. Operating condition indicators
The two LEDs "RUN" (green) and "ERROR" (red) indicate the operating condition
of the device.
13. Coverings for the screws that secure the front panel.
The significance of the operating and display elements is the same as explained after
Figure 2-4.
RUN ERROR
Schlossplatz
1000 A
21 kV
Abzweig erden mit F4
CTRL
F1
Annunciation
Local
Meas. Val.
F2
Remote
Trip log
F3
Test
F4
Normal
1
/
MENU
ENTER
ESC
7 8 9
4 5 6
1 2 3
0 +/-
, for panel flush mounting or cubicle mounting
1
®
4.
SIPROTEC
7SA632
7SA6 Manual
C53000-G1176-C133-1