RLE FMS V.1.13 - Manual (Page 185)

rletech.com FMS User Guide 185
A FMS Expansion Cards
A.3. Convert Current Input Channels to Voltage Input
Channels on Expansion Card A
When the FMS optional 12 channel analog input card is delivered, its channels are configured
for current inputs (4-20mA). Some sensors, however, may require voltage input channels (0-
5V or 0-10V). The customer may manually reconfigure any or all current input channels as
voltage input channels if necessary.
The headers on the expansion card are labeled P1 through P12. Each number corresponds with
a channel (e.g., P1 corresponds with channel 1, while P10 with channel 10.) Each header has
two parallel columns of five pins. Some pins are connected with jumpers. Changing these
header settings converts a current channel to a voltage channel, and vice versa.
To configure a header as a current channel (4-20mA), connect pins 1 and 3 with one jumper.
Connect pins 2 and 4 with another jumper. Connect pins 7 and 8 with a third jumper.
Figure A.8 Expansion Card Current Channel (4-20mA) Configuration
Note Expansion cards are shopped from the factory with all headers configured as current
channels.
To configure a header as a voltage channel (0-5V or 0-10V), connect pins 3 and 5 with one
jumper. Connect pins 4 and 6 with another jumper. Connect pins 9 and 10 with a third jumper.
Figure A.9 Expansion Card Voltage Channel (0-5V or 0-10V) Configuration