Chapter 4
4.1
INSTALLATION MANUAL
The objective of this Chapter is to provide the General Procedures for the Installation of
Systems of Industrial Automation Smar, including Programmable Controllers, I/O Modules,
Interface Terminals with the Operator and Communication Networks.
This document is organized in the following sections:
− Considerations about the conductor and conduit layouts;
− Conductor Category;
− Conductor positioning;
−
Panel layout and rack assembly;
−
Assembling and connecting the rack;
− Racks’ positioning in the panel;
− Installation of posts in the rails for fixation and modules’ safety inside the panel;
−
Connection and grounding;
− Power Distribution;
− Summary of the basic rules for assembling panels.
These procedures should be used as a help tool to avoid Electromagnetic Interferences (EMI) and
transients that may cause problems in the automation system.
NOTE
1. These procedures do not substitute the local electric codes.
2. Although these rules apply to most installations some electrically severe environment may
need additional precautions.
3. Recommendations to avoid problems with Electrostatic Discharge (ESD):
- Discharge the electrostatic charge found in the body before handling the electronic circuit
to avoid electrostatic discharge, which can damage the equipment;
- Keep the modules’ ports closed when in operation;
- The maintenance of the equipment, when powered, should only be done by trained
technicians.
Considerations about the layout of the conductors and conduits
The conductors layout match with the different types of I/O modules positioned in the rack. For that
reason, the user should first determine the location of the I/O modules for setting the cables
direction.
However, when planning your I/O-module placement, segregate the modules based upon the
conductor categories. Also, all conductors (ac or dc) in the same raceway must be insulated for the
highest voltage applied to any one of the conductors in the raceway.
Conductors Category
Aggroup the wires and cables complied with the three following categories (Table 4.1). You should
refer to the specification of each I/O module to classify the individual category of the conductors for
each I/O line.
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