76
Operating Manual
BX900S2
Starting up and operation
©
c
og
ni
ta
s.
Ges
el
ls
ch
ft f
ü
r T
e
ch
ni
k-
D
ok
um
e
nt
a
tio
n m
bH
201
2
P
fad
: C
:\P
ro
gr
am
m
e\
F
C
T
\ti
m
_
app
\ti
m
_
loc
al
\w
o
rk
\WA
LT
E
R
\O
B
J_D
OK
U
-13
57
0-
00
1.
fm
6.1.2.2
Indicators on the hot-plug power supply units
Figure 19: Indicators on the hot-plug standard power supply unit
Figure 20: Indicators on the hot-plug HE power supply unit
1
Error indicator for fan module 1 (orange)
Lights up if fan module 1 is defective.
2
Mains power indicator (two-color)
Flashes green when the system unit is switched off but still
connected to the mains (standby mode).
Lights up green when the system unit is switched on and is
working properly.
Lights up yellow when a prospective error has been detected
in the power supply unit but the latter is still active.*
1
2
3
1
2
3