Rockwell Automation 1771-IND series C INSTL INSTR AC/DC INPUT MODULE - Manual (Page 8)

8 Digital ac/dc (24V) Input Module
Publication 1771-IN052B-EN-P - April 2006
Connect Wiring
Connect your I/O devices to the field wiring arm, cat. no. 1771-WH, shipped with the
module.
You can use an ac (24V) output module (cat. no. 1771-OND/B) to directly drive terminals on
an ac/dc (24V) input module (cat. no. 1771-IND/C) as shown below.
ATTENTION
Remove power from the 1771 I/O chassis backplane before you install this module.
Failure to remove power from the backplane could cause:
• module damage or degradation of performance.
• injury or equipment damage due to possible unexpected operation.
(Actual wiring runs in this direction.)
L1
ac/dc High
ac/dc Low
L2
Terminal A must be connected to
L1 to balance the line in an
ungrounded application.
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
E
10426-I
T erminal B
T erminal A
T erminal C
T erminal D
T erminal E
1. Connect one terminal of your 2-wire input devices to
terminals 00 through 17.
2. Connect terminal E to the L2 (low) ac return.
Terminals A through D are not used. (Note: In
ungrounded applications, connect terminal A to L1 to
balance the line.) Connect the L1 (high) ac line to the
other terminal of your input devices. Use maximum
2.5 mm
2 (14 AWG) stranded copper wire to minimize
the voltage over long cable distances.