28
Andover Controls
Measuring DC Voltages
The UI-8-10 inputs may be configured to sense DC voltage by setting the Electrical Type
to
Voltage
and connecting the input terminals to a DC voltage source within the range of
the module’s input specifications. The following is a schematic representation of the
connection:
One lead connects to the numbered input terminal, the other to a return terminal.
When interfacing to a voltage output sensor, specific information on the transducer may
be required. The pull-up resistor of the input circuit will affect the output of the transducer.
•
It is suggested that you disable (set to OFF) the pull-up reference resistor on voltage
inputs.
10V Input Notes
It should be noted that although the 10V input configuration allows you to measure a
higher voltage, you still read a value of 0-5V. You have to convert the reading in your
program.
INx
RET
return
V
+
-
UI-8-10
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