Table 4 Analog Input Wiring - Mircom OpenBAS-HV-NX10 Series Installation Manual

To use the universal inputs as analog inputs
1. Connect the appropriate analog signal to the universal input according to the diagrams
below.
2. Configure the analog input type and then calibrate using the OpenBAS software.
Terminal Labeling on Field Devices
The positive terminal on field devices might be labeled one of the following:
+ +24
The negative terminal on field devices might be labeled one of the following:
- 0V
Table 4 shows how to connect different devices to the analog inputs.
!
Attention: When using 2 or more external power supplies, connect the negatives

Table 4 Analog Input Wiring

Type of field device Power source
12 VDC powered
transducer with 1-10
VDC output
12 VDC powered
transducer with 1-10
VDC output
+PWR 24 +DC
GND Neg COM
or commons of both power supplies to the 0V terminal of the controller.
12 VDC power supply
common to field device
and controller.
24 VAC or VDC power
supply common to field
device and controller.
The controller provides
the 12 VDC to the field
device.
AC PWR
Wiring diagram
12 VDC
Field Device
+
Signal
-
0 V
24 V
Field Device
+
Signal
-
0 V
Field Wiring
Controller
+12
UI#
0V
24 V
+12
Controller
UI#
0V
25 (45)