Siemens Add 7 AddFEM Manual page 22

AddFEM
Above the key–operated switch there are 3 LED units with 4 LEDs each for error
LED
displays (left) and status displays (right). The logical states of the digital inputs
and outputs are displayed by means of 32 operating state LEDs, which are posi-
tioned on the right, next to the error/status LEDs and the two switches.
Positioning of
the LEDs and
operating ele-
ments
Figure 2-2
The error/status LEDs are divided into 3 LED units with 4 LEDs each.
Meaning of the
The error LEDs are position on the left, the status LEDs are on the right.
Error/Status
LEDs
AddFEM
C79000–G8076–C900–03
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AddFEM operating elements
INTF Red Yellow
Red Green
EXTF
BUSF1 Red Yellow
BUSF2
Red Green
RED Red Yellow
STOP Red Green
DISO
USR1
SSA
USR2
RES
RUN
Design
2-5