Rockwell Automation 2705 RediPanel Push Button Module - Manual (Page 24)

A–B
3 Chapter
3–1
Wiring and Installation
This chapter contains the following sections.
Section Page
Electrical Precautions 3–1
Grounding 3–1
Power Requirements 3–2
Connecting Power 3–2
Enclosures 3–3
Space and Clearance Requirements 3–4
Installing the 800A and Sealed Membrane Modules 3–8
Installing the 800EM/EP Modules 3–10
Installing the 800T/H Push Button Modules 3–14
Connecting to a Remote I/O Link 3–16
Connecting to a Scanner Module 3–16
Install the Bulletin 2705 Push Button Module using publication NFPA 70E,
Electrical Safety Requirements for Employee Workplaces.
!
ATTENTION: Do not program any of the devices on the Push
Button Module as emergency stop switches. Emergency stop
switches must be hardwired to the master control relay of the
system to turn off all machine power completely.
Additional guidelines to follow include:
•
Careful wire routing helps cut down on electrical noise. Route incoming
power to the module by a separate path from the communication cables.
Do not run communications wiring and power wiring in the same
conduit!
•
Where wire paths must cross, make their intersection perpendicular.
•
Grounding helps to limit the effects of noise due to electromagnetic
interference (EMI). To avoid EMI, use shielded cables.
Grounding is an important safety measure in electrical installations. As
mentioned previously, with solid state systems grounding helps to limit the
effect of noise from EMI (electromagnetic interference).
An authoritative source on grounding requirements is the National Electrical
Code published by the National Fire Protection Association of Boston,
Massachusetts. Refer to an article of the Code that discusses the types and
sizes of wire conductors and safe methods of grounding electrical equipment
and components.
Chapter Objectives
Electrical Precautions
Grounding