Planning; Overview; Space Requirements; Primary Power Lines - Black & Decker d984 Installation Manual

Planning
Overview
The PLC' s are designed to work with your Modicon Programming panel software;
Modicon 800 series housings, interfaces and I/O modules.
The site planner must also consider the peripheral equipment (such as a Program-
mer, CRT monitor, or printer) when preparing an installation plan for the site. Re-
fer to the appropriate Modicon publications for site preparation procedures for re-
lated equipment.
Space Requirements
For the primary housing, allow 12 inch clearance to the left so installer can see
power supply connectors. Allow 6 inches on the top and side of the housing for
convection cooling in vertical mounting situations. Allow 12 inch of clearance at
the bottom of the Controller for cable access.
For all other housings, allow 6 inches on the top and sides of each housing for un-
obstructed cooling airflow in vertical mounting situations.
Also consider installation and physical access for removal of the modules as well
as subsequent set-vice including the connection and detachment of signal and
power cables when required.
The primary housing may be separated up to 12 feet from the secondary housing.
Primary Power Lines
In addition to service access, distance to power sources has to be considered in
planning your controller installation. In addition to cable routing considerations,
good practices dictate that the power lines be dedicated to the Controller installa-
tion to minimize problems that sometimes arise when sharing AC power with elec-
trically noisy equipment.
18 System Planning
GhMSS4-EDK