23 Analog input module XN-322-7AI-U2PT
23.3 Wiring topic
165 XN300 slice modules 02/24 MN050002EN Eaton.com
23.3 Wiring topic
23.3.1 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
interpreted as a % by measuring the analog voltage at the potentiometer's
wiper.
Figure 95: Potentiometer measurement at AI1, AI2, AI3 and/or AI4
23.3.2 Measurements using sensors / temperature inputs
In order to measure a sensor's output voltage via an analog input, a
differential voltage measurement is carried out without connecting either
input cable to earth (GND). The signal being measured must fall within the
input's permissible common mode range.
Figure 96: 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
RRRR
X4 X5
K-RRK+
PE
24 V
0 V
6-5+ 5- 6+
X1
1+ 1- 2+ 2- 4-
X2
3+ 3- 4+
X3
RRRR
X4 X5
K-RRK+
PE
24 V
0 V
6-5+ 5- 6+
+
U
-
+
U
-
+
U
-
+
U
-
ϑ