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Installing The Wiring Base And Power Supply; Chapter Objectives; General Mounting Guidelines - AB Quality Allen-Bradley 2755-SN3 User Manual

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Chapter Objectives

General Mounting
Guidelines
Installing the Wiring Base and
Power Supply
This chapter describes how to install and mount the wiring base.
Section

General Mounting Guidelines

Before mounting the wiring base, determine the proper orientation
and position as described in Chapter 2.
Leave adequate clearances for wiring.
The wiring base has four conduit openings. Seal unused conduit
openings with the 3 hole plugs provided with wiring base. Use
cord grips with rubber grommets on cables that enter wiring base.
Two different size grommets are provided with each cord grip.
Route wires carefully to reduce or minimize electrical noise.
When communication and power wiring must cross, make their
intersection perpendicular.
Proper grounding of the wiring base limits the effects of noise
due to Electromagnetic Interference (EMI). The wiring base has
a ground screw for connecting cable shields and ground wires. To
avoid EMI problems, all cables must be shielded and grounded at
one end. Grounding is also an important safety measure.
Connect to
Earth Ground
3
Chapter
Page
3-1
3-2
3-4
3-6
3-8
3-12
3-12
3-14
3-16
3-17
3-18
3-19
3-22
Wiring Base

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Allen-bradley 2755-sn8