Siemens siprotec 7SA522 User Manual page 33

View of Front Panel
1
(Housing Size / )
2
7SA522 Manual
C53000-G1176-C119-2
11)
SIEMENS
10)
9)
8)
LED
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Figure 2-1 Front view of a 7SA522, housing size
mounting
Referring to the operating and display elements in Figure 2-1:
1. Display (LCD)
The LCD shows processing and device information as text in various lists. Com-
monly displayed information includes measured values, counter values, binary in-
formation regarding the condition of circuit breakers, status of the device, protec-
tion information, general reports, and alarms.
2. Navigation keys
These keys serve for navigation through operating menus.
3. MENU key
This key activates the main menu.
4. ESC and ENTER keys
These keys serve to escape from specific menues or execute changes (such as
setting changes).
5. Numerical keys
These keys serve for entry of numerical values, such as limit value settings.
6. Function keys
Four function keys allow the quick and simple execution of frequently used ac-
tions. Typical applications include, for example, jumping to a particular position in
the menu tree such as the fault data in the Trip Log or the measured values. The
function keys are programmable, and may be used to execute control functions
such as closing or tripping circuit breakers. Next to the keypad, a labeling strip is
provided on which the user-specified key functions may be written.
7. 9-pin female D-subminiature connector
This serial interface is for the connection of a local PC running DIGSI
SIPROTEC
RUN ERROR
7SA522
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MENU
ENTER
ESC
F1
7 8 9
F2
4 5 6
F3
1 2 3
F4
0 +/-
1
/ , for panel flush mounting or cubicle
2
Hardware and Connections
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