Mounting The Controller; General Considerations - Allen-Bradley MicroLogix 1500 Instrucciones De Instalación

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8 MicroLogix™ 1500 Programmable Controller Base Units

Mounting the Controller

General Considerations

Most applications require installation in an industrial enclosure (Pollution Degree
2) to reduce the effects of electrical interference (Over Voltage Category II) and
environmental exposure. Locate your controller as far as possible from power
lines, load lines, and other sources of electrical noise such as hard-contact
switches, relays, and AC motor drives. For more information on proper
grounding guidelines, see the Industrial Automation Wiring and Grounding
Guidelines publication 1770-4.1.
ATTENTION
ATTENTION
NOTE
Publication 1764-IN001A-ML-P
Vertical mounting is not recommended due to heat build-up
considerations.
Be careful of metal chips when drilling mounting holes for
your controller or other equipment within the enclosure or
panel. Drilled fragments that fall into the base or processor unit
could cause damage. Do not drill holes above a mounted
controller if the protective debris strips have been removed or
the processor has been installed.
Remove the ESD sticker to install expansion I/O modules. An
end cap terminator (catalog numbers 1769-ECR or -ECL) or
an extension cable (catalog numbers 1769-CRR1, -CRR3,
-CLL1, -CLL3, -CRL1, -CRL3) must be used at the end of the
group of I/O modules attached to the MicroLogix 1500
Controller. The end cap terminator is not provided with the
base unit. A maximum of eight I/O modules may be connected
to the base.