Rockwell Automation 1756-xxxx ControlLogix Chassis and Power Supplies Installation Instructions - Manual (Page 9)

Rockwell Automation Publication 1756-IN005C-EN-P - March 2014 9
Preface
Installation Advisories
ATTENTION: Environment and Enclosure
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 not intended for use in residential environments and may not provide adequate protection to radio communication
services in such environments.
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, publication 1770-4.1 , for additional installation requirements
• NEMA 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by enclosures
ATTENTION: Prevent Electrostatic Discharge
This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these
guidelines when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.
IMPORTANT ControlLogix-XT system components are rated for extreme environmental conditions only when used properly with
other Logix-XT system components. The use of ControlLogix-XT components with standard ControlLogix system
components nullifies extreme-environment ratings.
If a ControlLogix-XT module is used with standard ControlLogix products, the ControlLogix-XT module can withstand only the
environments specified for the standard ControlLogix version of the module. For example, if a 1756-L63XT controller is used in a
standard 1756-A10 chassis, the ControlLogix-XT controller can withstand only the environment specified for the standard
1756-L63 controller.
The ControlLogix-XT system components are designed to meet the same and greater operational and environmental requirements
as traditional ControlLogix products.
When a ControlLogix-XT component is used as a replacement for a traditional ControlLogix component, the functional and
environmental requirements of the traditional ControlLogix component apply, with the exception of the power output ratings.
ATTENTION: If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment
may be impaired.