Instruction Manual

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 57
Installation and Wiring Chapter 3
Wire the Modules
After the module is properly installed, wire the modules by using this procedure.
To provide proper operation and high immunity to electrical noise, always use
shielded wire.
Follow these steps to wire your module.
1. At each end of the cable, strip some casing to expose the individual wires.
2. Trim the signal wires to 5 cm (2 in.) lengths, stripping about 5 mm (0.2 in.)
of insulation away to expose the end of the wire.
3. At the 1769-HSC module input end of the cable, twist the drain wire and
foil shield together, bending them away from the cable, and apply shrink
wrap, grounding the shield at this end.
4. At the other end of the cable, cut the drain wire and foil shield back to the
cable and apply shrink wrap.
5. Connect the signal wires to the terminal block, connecting the other end
of the cable to the input device.
6. Repeat steps
1 through 5 for each channel on the module.
ATTENTION: To prevent shock hazard, care should be taken when wiring
the module to signal sources. Before wiring any module, disconnect
power from the system power supply and from any other source to
the module.
Do not wire more than two conductors on any single terminal.
ATTENTION: Be careful when stripping wires. Wire fragments
that fall into a module could cause damage at powerup.
Cable
Signal Wire
Signal Wire
Drain Wire
Foil Shield
Signal Wire
Signal Wire
Cut Foil Shield
and Drain Wire