Weidmuller SAI Active Universal Pro Series, Manual

Page: 72 / 177

Connecting the SAI Distributor
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5663600000/1.4/09.09
5.10 SAI-AU M12 SB 4AI
The SAI distributor Active Universal is equipped with
the functions of a decentralised I/O system. Each
distributor is equipped with module-specific actua-
tor/sensor functions and a sub-bus interface. The
modules combine the complete electronics in a wa-
ter- and dust-proof protected housing. This enables
their use in harsh environments.
The module SAI-AU M12 SB 4AI is designed to
connect four analogue sensors with four M12 con-
nectors.
Figure 45 SAI-AU M12 SB 4AI
HINWEIS
After a change of the Subbus modules is
in many situations a new start of the ga-
teway necessary.
LEDs
UB Supply voltage UB
Supplies the module and the
Plug-in stations 1 to 4
Com Communication with the
gateway
AI0 to AI3 Analogue inputs
Connections
SUB IN Sub-bus input
SUB OUT Sub-bus output
1 to 4 4 inputs
Table 51 SAI-AU M12 SB 4AI
Connection of supply voltage
The power supply is 24 V DC in accordance with EN
61131-2; the permissible range is 18 to 30 V DC.
The distributor is designed to offer protection against
polarity reversal.
Module connection from SUB-IN
Contact system M8 male connector, 4-pole
Coding -
Pin assignment Pin 1: + 24 Vdc
Pin 2: Data +
Pin 3: GND
Pin 4: Data -
Housing: Shield, connected
with the FE
Table 52 Contact assignment for the sub-bus
male connector
AI3
4AI
U
B
COM
IN OUT
BUS
AI2
AI1
AI0