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IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 29
3.4.2.4
Control Board DIP Switches
There are three switch settings on the controller board that are used for controller input (S1 - S7) polarity, analog
input signal control method, and RS485 termination. The figure below shows the location of these switches and
their function along with the default settings.
Figure 3-6: DIP Switches
Name
Function
Settings
DIP Switch S1
Input method for analog input A2
V:
0–10VDC input (internal resistance: 20K Ohm)
I
: 4–20 mA input (internal resistance 250 Ohm)
(Default)
DIP Switch S2
RS485 Termination
OFF:
No terminating resistance
(Default)
ON:
Terminating resistance of 110 Ohm
DIP Switch S3
Controller input signal polarity (S1-S7)
on the controller board
SINK:
Must remain in this position for use with the adder AC
interface boards
(Default)
SOURCE:
Use external 24V power supply
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