Rockwell Automation Publication 1756-UM001M-EN-P - February 2012 29
Chapter 2
Install the 1756-L6x Controller
Precautions
Consider these precautions before installing or removing the ControlLogix
controllers.
Environment and Enclosure
Topic Page
Precautions 29
Before You Begin 32
1756-L6x Controller Parts 32
1756-L6x Controller Installation 34
CompactFlash Card Installation and Removal 34
Battery Connection and Replacement 36
Insert the Controller into the Chassis 39
Remove the Controller from the Chassis 40
Additional Resources 43
ATTENTION: This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II
applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.
This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 11. Without appropriate
precautions, there may be difficulties with electromagnetic compatibility in residential and other environments due to
conducted and radiated disturbances.
This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for
those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting
from accessibility to live parts. The enclosure must have suitable flame-retardant properties to prevent or minimize the spread
of flame, complying with a flame spread rating of 5VA or be approved for the application if nonmetallic. The interior of the
enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional
information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.
In addition to this publication, see the following:
• Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1
, for additional
installation requirements
• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by enclosure
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