A6.1.3.5; Input Configuration - Rutter VDR-100G3 Installation Manual

A6.1.3.5

Input Configuration

The internal voltage divider circuits, on the inputs, can be configured to measure bipolar (+/- 5V
or +/- 10V), unipolar (0 to 5V or 0 to 10V), and current (4 to 20 mA) indicators.
Note! Both the bipolar and unipolar settings apply to groups of channels (i.e., if channel 1 is set to
measure bipolar, channel 2 is automatically set to measure bipolar as well; the same is true of the
unipolar setting).
Switch SW2 is used to change each 2 input group between bipolar and unipolar mode. Positions
1 to 4 set the channel pairs to unipolar or bipolar mode (i.e., SW2 pos 1 'ON' sets channels A1
and A2 to bipolar mode). Switches S2 to S9 control the internal input voltage divider settings.
Switches S2, S3, S4, and S5 are used to include/short the resistors on the inputs. Switches S6,
S7, S8 and S9 are used to include/short the pull down resistors between the inputs and grounds.
To access these switches:
Unplug the input connectors;
Unscrew the two screws located on the front panel of the DataAnalog enclosure in order
to remove it;
Slide the circuit board out of the enclosure.
See DataAnalog PCB below for further information regarding switch location.
To configure each DataAnalog input channel, the switches should be set according to the
following tables. The subscripts on the switch labels indicate which switch position is applicable.
VDR-100G3/G3S Installation Manual
Appendix 6: External Interface Modules, Rev. 1.1
Figure A6 - 3 DataAnalog PCB
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06/10/2008