Hardware and Connections
2-4 7SJ63 Manual
C53000-G1140-C120-1
8. Key Switches
The two key switches ensure quick - and secure - access to the functions “switch
between local and remote control” and “switch between interlocked and non-inter-
locked operation.”
9. Serial Communication Interface, 9-pin Female D-subminiature connector
This serial interface is for the connection of a local PC running DIGSI
®
4.
10.LED Key
This key has the dual purpose of resetting latched LEDs and the latched contacts
of binary outputs, as well as testing all of the LEDs.
11.LEDs
The function of these indicators can be programmed. There is a vast selection of
signals from which to choose. Some examples are protective element status, relat-
ed to specific protective elements, processing or control information, and binary in-
put 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.
View of Front Panel
(Housing Size
1
/
1
)
The significance of the operating and display elements is the same as explained after
Figure 2-1.
Figure 2-2 Front View of a 7SJ63, Housing Size
1
/
1
, for Panel Flush-mounting / Cubicle
Mounting
SIEMENS SIPROTEC
1 2
6
3
+/-0
54
7 8 9
PICKUP A
PICKUP B
TRIP
PICKUP C
PICKUP GND
PROT ENABLE
CB OPEN
CB CLOSED
T.C. FAIL
7SJ63
RUN ERROR
MENU
ESCLED
CTRL ENTER
F4
F1
F2
F3
Fault Data
Meter
Breaker
Open
Remote
Normal
Local
Test
Default Display
Fault Location With F4
21 kV
1000 A
CLOSEOPEN
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