Rockwell Automation 1794-ID2/B INSTALL INSTR 24v FLEX I/O 2 CHANNEL Incremental Encoder Module - Manual (Page 8)

8 FLEX I/O 2-Channel Incremental Encoder Module
Publication 1794-IN063C-EN-E - February 2014
3. Make sure the pins on the bottom of the module are straight so they align
properly with the connector in the terminal base.
4. Position the module (6) with its alignment bar (5) aligned with the groove (4) on
the terminal base.
5. Press firmly and evenly to seat the module in the terminal base unit, noting that
the module is seated when the latching mechanism (1) is locked into the module.
Remove debris wrapper before applying power to the module.
Wire the Module
1794-TB3 and 1794-TB3S Terminal Base Wiring
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 (A+, A-, B+, B-, Z+, Z-, G+, G-) for each
channel to numbered terminals on the 0…15 row (A) as indicated in the table
below.
2. If applicable, connect the encoder commons to any terminal on the 16…33 row
(B) for each input as indicated.
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: To reduce susceptibility to noise, power analog modules and
digital modules from separate power supplies. Do not exceed a length of 3 m
(9.8 ft) for DC power cabling.