21 Analog input module XN-322-7AI-U2PT
21.3 Wiring
150
XN300 slice modules
06/16 MN050002 EN
www.eaton.com
21.3 Wiring
21.3.1 Potentiometer measurements
When using potentiometer measurements, the potentiometer is powered
using the reference voltage and AIx is connected to GND by configuring the
corresponding parameters. The potentiometer's position can then be inter-
preted as a % by measuring the analog voltage at the potentiometer's wiper.
Figure 84:
Potentiometer measurement at AI1, AI2, AI3 and/or AI4
21.3.2 Measurements using sensors / temperature inputs
In order to measure a sensor's output voltage via an analog input, a differen-
tial voltage measurement is carried out without connecting either input cable
to earth (GND). The signal being measured must fall within the input's per-
missible common mode range.
Figure 85:
Connecting analog inputs for measuring a sensor at AI1, AI2, AI3, and/or AI4;
temperature measurement for KTY10 at X5
X1
1+ 1- 2+ 2-
4-
X2
3+ 3- 4+
X3
R
R
R
R
X4
X5
K-
R
R K+
PE
24 V
0 V
6-
5+ 5- 6+
X1
1+ 1- 2+ 2-
4-
X2
3+ 3- 4+
X3
R
R
R
R
X4
X5
K-
R
R K+
PE
24 V
0 V
6-
5+ 5- 6+
+ U - + U -
+ U - + U -
ϑ
Summary of Contents for XN300
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