Allen-Bradley micrologix 1500, Руководство пользователя

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Publication 1764-UM001A-US-P
2-2 Installing Your Controller
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage, by
applying the safety requirements of EN 61131-2 Programmable Controllers, Part 2
- Equipment Requirements and Tests.
For specific information required by EN 61131-2, see the appropriate sections in
this publication, as well as the following Allen-Bradley publications:
•
Industrial Automation Wiring and Grounding Guidelines for Noise Immunity ,
publication 1770-4.1
•
Guidelines for Handling Lithium Batteries , publication AG-5.4
•
Automation Systems Catalog , publication B111
Installation
Considerations
Most applications require installation in an industrial enclosure (Pollution Degree
2
(1)
) to reduce the effects of electrical interference (Over Voltage Category II
(2)
)
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.
(1)
Pollution Degree 2 is an environment where normally only non-conductive pollution occurs except that occasionally
temporary conductivity caused by condensation shall be expected.
(2)
Overvoltage Category II is the load level section of the electrical distribution system. At this level transient voltages
are controlled and do not exceed the impulse voltage capability of the products insulation.
ATTENTION
!
Vertical mounting of the controller is not recommended due to
heat build-up considerations.
ATTENTION
!
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 are removed or the processor is
installed.