FLEX I/O AC Digital Input Modules
11
Publication 1794-IN102C-EN-P - July 2015
Connecting Wiring for the 1794-IA8I
1.
For 1794-TB2, 1794-TB3, or 1794-TB3S
– Connect individual input wiring to
even numbered terminals on the 0-15 row (A) as indicated in the Wiring
Connections for 1794-IA8I table.
For 1794-TBN
– Connect individual input wiring to even numbered terminals
0-14 on the 16-33 row (B) as indicated in the Wiring Connections for 1794-IA8I
table.
2.
For 1794-TB2, 1794-TB3, or 1794-TB3S
– Connect the associated 120V AC
common (L2) of the isolated supply to the corresponding odd numbered
terminals on the 0-15 row A for each input as indicated in the Wiring
Connections for 1794-IA8I table.
For 1794-TBN
– Connect the associated 120V AC common lead (L2) of the
isolated supply to the corresponding odd numbered terminal 1-15 on the 34-51
row (C) as indicated in the Wiring Connections for 1794-IA8I table.
Input 15
A-15
C-15
C-50
120V AC L1
Power terminals C-34 to C-51 (C-34 and C-51 on 1794-TBN) are internally connected
together. Connect 120V AC L1 to C-34.
120V AC L2
Common terminals B-16 to B-33 (B-16 and B-33 for 1794-TBN) are internally connected
together. Connect 120V AC common L2 to terminal B-16.
(1)
When using the 1794-TBN, an external terminal strip is needed to connect the 120V AC power connections.
IMPORTANT
Individual isolated 120V AC L1 power leads must be run externally to each
of the input devices.
Terminal Base Wiring for 1794-IA16
Input
Input Terminal
1794-TB3, 1794-TB3S
Input Terminal
1794-TBN
120V AC Supply (L1)
(1)
