Publication 1763-UM001E-EN-P - June 2015
50 Wiring Your Controller
Sinking and Sourcing
Wiring Diagrams
Any of the MicroLogix 1100 DC embedded input groups can be configured as
sinking or sourcing depending on how the DC COM is wired on the group.
Refer to pages 51 through 51 for sinking and sourcing wiring diagrams.
1763-L16AWA, 1763-L16BWA, 1763-L16BBB and 1763-L16DWD
Wiring Diagrams
1763-L16AWA Input Wiring Diagram
(1)
(1) “NOT USED” terminals are not intended for use as connection points.
Type Definition
Sinking Input The input energizes when high-level voltage is applied to the input
terminal (active high). Connect the power supply VDC (-) to the input
group’s COM terminal.
Sourcing Input The input energizes when low-level voltage is applied to the input
terminal (active low). Connect the power supply VDC (+) to the input
group’s COM terminal.
The 24V DC sensor power source must not be used to
power output circuits. It should only be used to power
input devices (e.g. sensors, switches). See Master Control
Relay on page 2-26 for information on MCR wiring in
output circuits.
In the following diagrams, lower case alphabetic
subscripts are appended to common-terminal
connections to indicate that different power sources
may be used for different isolated groups, if desired.
L1a
L2a
L1b
L2b
L1c
L2c
AC
COM
NOT
USED
NOT
USED
I/1I/0 I/2 I/3
AC
COM
I/4 I/5
IA
COM
IV1(+) IV2(+)I/6 I/7 I/8 I/9
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