Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 73)

Installing Your
Programmable Controller
Chapter 4
4-34
4. Repeat steps 2 and 3 until you wire the appropriate I/O devices to the
field wiring arm.
10618ĆI
5. Connect the drain wire to ground.
6. Gather all wires and neatly bundle them using tie wraps.
7. Label all wires with a 5-digit I/O address code at each wire
connection. Chapter 7 describes I/O addressing.
MultiĆConductor Shielded Cable
Intelligent and low-voltage dc discrete I/O modules require shielded cables
that help to reduce the effects of electrical noise coupling. Ground a shield
at one end only as specified in the appropriate publication for the product.
A shield grounded at both ends may form a ground loop that can introduce
objectionable ground currents resulting in faulty operation of the
programmable controller.
Avoid breaking shields at junction boxes. If you do break a shield at a
junction box, make sure that the junction box contains only low-level
conductors. Also, do not strip the shield back any farther than necessary to
make a connection.