Single Ended Current Inputs (Ain 3 & 4 Only); Figure 19- Single Ended Current Inputs - Elpro Technologies 915U-2 User Manual

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Single Ended Current Inputs (AIN 3 & 4 only)
Single-ended current input mode is useful if the sensor loop is grounded to the 915U-2
module. Devices can be powered from the 24V Analog Loop Supply (ALS) generated
internally from the module.
The Dip Switches are used to determine if the inputs will be current or voltage.
Dip Switches 1 & 2 are used for or Analog 3 and Dip Switches 3 & 4 are used for
Analog 4
For Current set both Dip Switches to the "On" position, for Voltage set both to "Off"
Loop
Powered
Sensor
Power
supply
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ALS +24V
+
mA
-
AIN3
AIN4
_
Externally
powered
GND
sensor
Figure 19– Single Ended Current Inputs
915U-2 Wireless I/O
915U-2
ON
1 2 3 4 5 6
Dip Switch setting
for Current I/P
V-
User Manual