3
Publication 1794-IN102B-EN-P - June 2004
1794-TB2, -TB3 and -TB3S Terminal Base Wiring for 1794-IA8,
IA8K and -IA16
1794-TBN Terminal Base Wiring for 1794-IA8, IA8K
and -IA16
Connecting Wiring for the 1794-IA16
1. For 1794-TB3, or -TB3S - Connect individual input wiring to
numbered terminals on the 0-15 row (A) as indicated in the table
below .
For 1794-TBN - Connect individual input wiring to even numbered
terminals on the 16-33 row (B), and to the odd numbered terminals
on the 34-51 row (C) as indicated in the table below.
2. For 1794-TB3, or -TB3S - Connect the associated 120V ac power
lead (L1) of the input device to the corresponding terminals on the
34-51 row (C) for each input as indicated in the table below. (The
120V power terminals of row (C) are internally connected together.)
For 1794-TBN - An external terminal strip is needed to distribute
120V ac power (L1) to each device.
3. Connect 120V ac power (L1)to terminal 34 on the 34-51 row (C).
4. Connect 120V ac common (L2) to terminal 16 on the 16-33 row (B).
5. If daisychaining power to the next terminal base, connect a jumper
from terminal 51 (+120V ac L1) on this base unit to terminal 34 on
the next base unit.
6. If continuing ac common to the next base unit, connect a jumper
from terminal 33 (120V common L2) on this base unit to terminal 16
on the next base unit.
Terminal Base Wiring for 1794-IA16
Connecting Wiring for the 1794-IA8I
1. For 1794-TB2, -TB3, or -TB3S - Connect individual input wiring to
even numbered terminals on the 0-15 row (A) as indicated in the table
below .
For 1794-TBN - Connect individual input wiring to even numbered
terminals 0-14 on the 16-33 row (B) as indicated in the table below.
2. For 1794-TB2, -TB3, or -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 table below.
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 table below.
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
34
Commons
(1794-TB3 shown
L2
L1
Voltage
A
B
C
L2
Connect 120V ac L1 power to terminal C-34
Connect 120V ac common L2 to terminal B-16
Use B-33 and C-51 for daisychaining to the next terminal base unit
L1
(Terminals C-35 thru C-50 not available on the 1794-TB2.)
16
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
51
33
34
L1
L2
L1
L2
B
C
Even Numbered I/O Terminals 0 thru 14
Odd Numbered I/O Terminals 1 thru 15
(1794-TBN show
1 = 120V ac - Connect to terminal C-34
2 = 120V ac common - Connect to terminal B-16
se B-33 and C-51 for daisychaining to the next terminal base unit
Input
Channel
Input Terminal
1794-TB3, -TB3S
Input Terminal
1794-TBN
120V ac
Supply (L1)
1
Input 0 A-0 B-0 C-35
Input 1 A-1 C-1 C-36
Input 2 A-2 B-2 C-37
Input 3 A-3 C-3 C-38
Input 4 A-4 B-4 C-39
Input 5 A-5 C-5 C-40
Input 6 A-6 B-6 C-41
Input 7 A-7 C-7 C-42
Input 8 A-8 B-8 C-43
Input 9 A-9 C-9 C-44
Input 10 A-10 B-10 C-45
Input 11 A-11 C-11 C-46
Input 12 A-12 B-12 C-47
Input 13 A-13 C-13 C-48
Input 14 A-14 B-14 C-49
Input 15 A-15 C-15 C-50
120V ac L1 Power terminals C-34 thru C-51 (C-34 and C-51 on -TBN) are
internally connected together. Connect 120V ac L1 to C-34
120V ac L2 Common terminals B-16 thru B-33 (B-16 and B-33 for -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.
To Next Page
Loading...
Need help?
General
