Wiring options for the i/o module – Rockwell Automation 1769-OB32T Compact 32-point Solid-state 24V dc Source Output Module User Manual
Page 12

12 Compact 32-point Solid-state 24V dc Source Output Module
Publication 1769-IN080A-EN-P - August 2006
Wiring Options for the I/O Module
Included with your 32-point I/O module is a keyed 40-pin female connector and
crimp-type pins. These components let you wire I/O devices to the module using a
40-conductor cable or individual wires.
Refer to page 15 for connector/pin assembly instructions.
When assembled, align the female connector over the module’s male header using
the keying slot as a guide. Firmly lock them together with the upper and lower
retaining arms. 1492 pre-wired cables and interface modules can be used for
connecting external I/O.
There are two options for wiring the 32-point I/O module.
• Option 1 - Wire the 1746-N3 Connector
• Option 2 - Use Allen-Bradley 1492 Wiring Systems
Option 1 - Wire the 1746-N3 Connector
(1)
Maximum cable length is dependent on how much voltage drop (current x (ohms/ft.) x (feet)) your system can tolerate. Your
system should take into account the minimum turn-on voltage required by external loads connected to the 32-point output
module, the minimum turn-on voltage required by the 32-point input module, and all of the voltage drops associated with
wiring to and from the load, sensors, terminal blocks, power sources and the module itself.
31561-M
Keyed Female Connector (1746-N3)
Included with 32-point I/O Modules
Contact pins provided with female
connector can accept 0.13…0.33 mm
2
(26…22 AWG) wires.
(1)
User Terminal Block (For
wire termination, refer to
page 14 for the wiring
diagrams of the I/O modules.)
Panel Lights,
Buttons, Sensor
Keyed Male
MIL-C-83503
Header
32-point
I/O Module