User manual

915U-2 Wireless I/O Page 35
Page 35 User Manual
Single Ended Voltage Inputs
All analog inputs can be setup to read voltage.
If using Analog input 1 & 2 connect the voltage source across the positive terminal of
the input and Common.
If using Analog input 3 & 4 then connect across the input terminal and Common.
Note:
Default scaling gives 0-25V for 4-20mA output on Analog 1 and 2.
Default scaling for analog 3 and 4 gives 0-5V for 4-20mA output.
For Voltage input on analog 3 and 4 set both Dip Switches to the “Off” position”.
0-25V
Sensor
+
-
V
ALS +24V
0-5VDC
Sensor
+
-
V
V-
AIN3
AIN4
1
ON
2 3 4 5 6
Dip Switch setting
for Voltage I/P
AIN1+
AIN1-
Differential Voltage
Inputs (AI1&2)
Single Ended Voltage
Input (AI3&4)
915U-2
GND
Figure 20 – Voltage Inputs