Siemens siprotec 7SA522 User Manual page 34

Hardware and Connections
View of Front Panel
1
(Housing Size / )
1
SIEMENS
LED
2-4
8. 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.
9. Light emitting diodes (LEDs)
The function of these indicators can be programmed. There is a vast selection of
signals from which to choose. Some examples are device status, processing or
control 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.
10. Operating condition indicators
The two LEDs "RUN" (green) and "ERROR" (red) indicate the operating condition
of the device.
11.Coverings for the screws that secure the front panel.
The significance of the operating and display elements is the same as explained after
Figure 2-1.
RUN
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F1
F2
F3
F4
Figure 2-2 Front view of a 7SA522, housing size
mounting
ERROR
 #
!
MENU
ENTER
ESC
7 8 9
4 5 6
1 2 3
0 +/-
1
/ , for panel flush mounting or cubicle
1
C53000-G1176-C119-2
SIPROTEC
7SA522
7SA522 Manual