AC (120V) Isolated Output Module
(Cat. No. 1771-OD)
Installation Data
5
ATTENTION: The field wiring arm terminal identification
number is not the same as the number of the bit which controls
that output.
You should identify the labels on the wiring arm with the name or number
of the device connected at each terminal.
Figure 1
Connection Diagram for 1771-OD Isolated Output Module
L1
L2
120V ac
Supply
1
2
3
4
5
6
7
8
9
10
11
12
Load
Output 0A
Output 0B
Output 1A
Output 1B
Output 2A
Output 2B
Output 3A
Output 3B
Output 4A
Output 4B
Output 5A
Output 5B
10593-I
You can use an output of the 1771–OD module to drive an input of a 120V
ac input module (1771–IA, –IA2, –ID, –IAD) to indicate status of turning
on a motor starter, for example (
). However, you must add a 2.5K
ohm, 10W resistor (or an Electrocube snubber, pt. no. RG-1676-1) between
the output and L2 (common). Inputs configured with the output module are
not isolated from each other (except for 1771–IAD inputs).
ATTENTION: Do not connect the 1771–OD output channels
in series. Doing so can result in distortion of the output
waveform causing the output devices to chatter.
