
2–9How to Install Your Incremental Encoder Module
'&"! * )
Wiring to the module is made through the terminal base unit on
which the module mounts.
Compatible terminal base units are:
Module 1794ĆTB3 1794ĆTB3S 1794ĆTBN 1794ĆTBNF
1794-ID2 Yes Yes Yes Yes
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A
B
C
A
B
C
1794ĆTB3 1794ĆTB3S
! " "!
0 -15
34-51
16-33
!
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
! %%% $"'!
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
18 19 20 21 22 23 3324 25 26 27 28 29 30 31 3217
35 36 37 38 47 48 49 5034
51
16
# & &"# " ($! $
39 40 41 42 43 44 45 46
&$' %%% $"'!
! " "!
!
! %%% $"'!
&$' %%% $"'!
Connecting Wiring using a 1794ĆTB3 and ĆTB3S Terminal Base
Units
1. Connect individual input wiring (A+, A–, B+, B–, Z+, Z–, G+,
G–) to numbered terminals on the 0–15 row (A) as indicated in
the table below.
!
ATTENTION: Do not connect maximum input
voltage simultaneously to all inputs if the module
ambient temperature is expected to exceed 40
o
C.
!
ATTENTION: If the module ambient temperature is
expected to continuously exceed 40
o
C, you must limit
the input voltage using an external resistor on each
input. A 1KΩ resistor effectively limits a 24V sensor
signal to about 15V at the input. Do not limit the input
to less than 6V.
2. Connect the associated input common (3-wire devices only) to
the corresponding terminal on the 16-33 row (B) for each input as
indicated in the table below. (Commons are internally connected
together.)
Connecting Wiring for
Your incremental encoder
Module
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