230230 / 947160310010
2019-03-08·BA00·III·en·01
Engineering
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Digital Input Output Module NAMUR
for Ex n Zone 2
Series 9471/35
6.1
Terminal Assignment of the pluggable Terminals X1 and X2
For the module, two pluggable terminals X1 and X2 (spring clamp terminals 245090
and 245091) for connection of field devices are available as accessories (not included in
delivery of the module). The pluggable terminals X1 and X2 have 24 clamping units for
connection of the field cables.
18132E00
All earth connections (channel 0 to 15) are connected.
The output current must flow back via its earth connection.
6.2
Connection Diagram for Field Devices
Terminal X1
X2
Function
Channel 0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
(not assigned)
1
4
7
10 13 16 19 22 25 28 31 34 37 40 43 46
Signal input
2
5
8
11 14 17 20 23 26 29 32 35 38 41 44 47
Earth
3
6
9
12 15 18 21 24 27 30 33 36 39 42 45 48
Active
24 V signals
3-conductor PNP
proximity switches
NAMUR
proximity switch /
passive contacts
Solenoid
valves /
indicator lamps
Low power
20462E00
Parallel switching of outputs in order to increase the current is not
permissible.
Only connect a 3-conductor PNP proximity switch. An NPN connection is
not allowed.
26 27 28 29 30 31 32 33 34 35 36 37 38 39
X 1
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1
2
X 2
25
40 41 42 43 44 45 46 47 48
Signal
GND
GND
GND
Signal
GND
Signal
GND
47K
Signal
GND
1
2
3
46
47
48
Ch0
Ch15
2 W Out
low power
2 W In
NAMUR
3 W In
PNP ext.
2 W In
24 V ext.
X1
X2
9471
X0
not
connected
Signal
ext. 24 V
Signal
GND
47K
ext. 24 V
Signal
Signal
GND
ext. 24 V
Signal
GND
ext. 24 V
