Eaton XN300 - 22.3 Wiring topic

22 Analog input module XN-322-4AI-PTNI
22.3 Wiring topic
153 XN300 slice modules 02/24 MN050002EN Eaton.com
22.3 Wiring topic
One analog input can be wired to each of the four X1 to X4 connectors. Both
2-wire and 3-wire configurations are supported.
22.3.1 Two-wire connection
When using a 2-wire configuration, the resistance value between pins 1 and
3 will be measured and interpreted as a temperature reading. The cable
resistance will affect the reading in the form of an error. The advantage of
using this type of configuration is the fact that it requires a small number of
connection cables.
R
L
= Cable resistance of connection cable
R
T
= Resistance of temperature sensor
Figure 90: Wiring diagram for two-wire connections; X1, X2, X3, and/or X4 can be used with
this type of configuration

X1
R+ S+ R-
X2
R+ S+ R- R+ S+ R- R+ S+ R-
X3 X4
PE
24 V
0 V
R
L
R
L
R
T
R
L
R
L
R
T
R
L
R
L
R
T
R
L
R
L
R
T