Function
ASD 531, Technical description, T 140 416 en
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2.2
Electrical functional principle
Fig. 2 Block diagram
2.2.1
Power supply
The operating voltage of the ASD 531 is +14 to +30 VDC. On the AMB 31 Main Board, 5 VDC of the operating voltage is di-
verted for internal voltage use.
The operating voltage is monitored on the AMB 31 for undervoltage. If the operating voltage falls below 13 VDC (+0 /
–0.3 VDC), the ASD 531 triggers an undervoltage fault.
Fan
Connection possibilities of the additional modules:
1 x XLM 35 to
1 x RIM 36 to
“
”
“
”
Option1
Option3
(16)
L1
C1
G1
L2
C2
G2
LED2
LED1
XLM 35
A
ir
f
lo
w
s
e
n
s
o
r
Smoke sensor
SSD 31
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
LED1
IN
O
U
T
LED2
LED3
LED4
LED5
(8
)
(8
)
RIM 36
R
e
s
e
t
e
x
t.
Rel. 2
Al
Rel. 1
St
OC
Supply
Red.
In
AMB 31
A
ir
f
lo
w
d
is
p
la
y
(16)
(8)
Option3
Option1
BAT
SENS
SSD
Vent
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
HW-Reset
Wdog
CardOK
Com
Set/Res
OK
Mode
Holes
Class
Relay
Airflow
AF+
AF-
Al
Flt
Det.
dusty
dirty
Pwr
LED1
LED2
LED3
LED4