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FLEX I/O Isolated Output HART Analog Module
Publication 1794-IN120D-EN-P - September 2015
2. Make certain the flexbus connector (3) is pushed all the way to the left to connect
with the neighboring terminal base/adapter.
3. Make sure the pins on the bottom of the module are straight so they will align
properly with the connector in the terminal base.
4. Position the module (4) with its alignment bar (5) aligned with the groove (6) on
the terminal base.
5. Press firmly and evenly to seat the module in the terminal base unit. The module
is seated when the latching mechanism (7) is locked into the module.
Wire the Module
To connect wiring for 1794-TB3 and 1794-TB3S bases, refer to the tables and figure and
complete the following.
1. Connect individual input wiring to numbered terminals on the 0…15 row A, as
indicated in the table, using Belden 8761 cable for signal wiring.
2. Connect each channel signal return to the associated terminal on row A.
IMPORTANT
You cannot install the module unless the connector is fully extended.
WARNING:
If you remove or insert the module while the backplane power is
on, an electrical arc can occur. This could cause an explosion in hazardous
location installations. Be sure that power is removed or the area is
nonhazardous before proceeding.
WARNING:
If you connect or disconnect wiring while the field-side power is
on, an electrical arc can occur. This could cause an explosion in hazardous
location installations. Be sure that power is removed or the area is
nonhazardous before proceeding.
ATTENTION:
Connect only one current signal per channel.