Siemens siprotec 7SA6 User Manual page 95

Display
Keys
LEDs
Operating Serial
Interface
7SA6 Manual
C53000-G1176-C133-1
The functions of the operating and display elements on the operator control panel are
described below.
Process and device information are displayed in the LCD display. Commonly dis-
played information includes circuit breaker status, measured values, counter values,
binary information regarding the condition of the device, protection information, gen-
eral messages, and alarms.
The light for the display is normally off. The light automatically turns on whenever a
key is pressed on the operating field. If no input from the operator control panel occurs
for ten minutes, then the light turns off again. The light can be controlled via a binary
input that is configured (programmed) for this purpose.
The keys have various functions.
q
Navigation through the operating menus of the device and movement within the op-
erator control display are accomplished with the
q
The main menu is opened with the
q
Changes are cancelled or confirmed with the
q
Numerical values are entered with the
point, and the key for a negative sign. If a value of infinity (∞) is desired, press
+/–
the decimal point key twice; ∞ appears in the display.
q
The to keys are programmable. The keys are typically used to execute com-
F1 F4
monly performed actions. Labelling strips are provided.
q
Latched LEDs and output relays are reset and the group of LEDs are tested with
the key.
LED
q
"RUN" and "ERROR" LEDs indicate the condition of the device.
q
All other LEDs are freely configured to indicate process information, status, events,
etc. Labelling strips are provided.
Local communication with the device is established through the front operating serial
interface with a PC running DIGSI
D-subminiature port.
,
key.
MENU
and
ESC ENTER
to keys, the
0 9
®
4. The interface on the device is a 9-pin, female,
®
SIPROTEC 4 Devices
, , keys.
keys, respectively.
. key for a decimal
4-7