Publication 1762-UM001D-EN-P - March 2004
2-14 Installing Your Controller
Mounting the Controller
MicroLogix™ 1200 controllers are suitable for use in an industrial
environment when installed in accordance with these instructions.
Specifically, this equipment is intended for use in clean, dry
environments (Pollution degree 2
(1)
) and to circuits not exceeding
Over Voltage Category II
(2)
(IEC 60664-1).
(3)
(1)
Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that
occasionally a temporary conductivity caused by condensation shall be expected.
(2)
Over Voltage 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 product’s insulation.
(3)
Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC)
designations.
ATTENTION
Do not remove the protective debris shield until after
the controller and all other equipment in the panel
near the controller are mounted and wiring is
complete. Once wiring is complete, remove
protective debris shield. Failure to remove shield
before operating can cause overheating.
ATTENTION
Electrostatic discharge can damage semiconductor
devices inside the controller. Do not touch the
connector pins or other sensitive areas.
TIP
For environments with greater vibration and shock
concerns, use the panel mounting method described
on page 2-16, rather than DIN rail mounting.
debris shield
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