Eaton XN300 Manual

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23 Analog input module XN-322-7AI-U2PT23.3 Wiring topic165 XN300 slice modules 02/24 MN050002EN Eaton.com23.3 Wiring topic23.3.1 Potentiometer measurementsWhen using potentiometer measurements, the potentiometer is poweredusing the reference voltage and AIx is connected to GND by configuring thecorresponding parameters. The potentiometer's position can then beinterpreted as a % by measuring the analog voltage at the potentiometer'swiper.Figure 95: Potentiometer measurement at AI1, AI2, AI3 and/or AI423.3.2 Measurements using sensors / temperature inputsIn order to measure a sensor's output voltage via an analog input, adifferential voltage measurement is carried out without connecting eitherinput cable to earth (GND). The signal being measured must fall within theinput'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 R R R RX4 X5 K-R R K+PE24 V0 V6-5+ 5- 6+X1 1+ 1- 2+ 2- 4-X2 3+ 3- 4+ X3 R R R RX4 X5 K-R R K+PE24 V0 V6-5+ 5- 6++ U - + U - + U - + U - ϑ