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1756 GuardLogix Controllers
Rockwell Automation Publication 1756-PC022A-EN-P - March 2016
North American Hazardous Location Approval
The following information applies when operating this equipment in hazardous locations:
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous
Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate
indicating the hazardous location temperature code. When combining products within a system, the most
adverse temperature code (lowest “T” number) may be used to help determine the overall temperature code of
the system. Combinations of equipment in your system are subject to investigation by the local authority having
jurisdiction at the time of installation.
Informations sur l'utilisation de cet équipement en environnements dangereux:
Les produits marqués “CL I, DIV 2, GP A, B, C, D” ne conviennent qu'à une utilisation en environnements de
Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages
sur sa plaque d'identification qui indiquent le code de température pour les environnements dangereux.
Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de
température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les
combinaisons d'équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au
moment de l'installation.
Prevent Electrostatic Discharge
European Hazardous Location Approval
The following applies to products marked
II 3 G. Such modules:
• Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and Safety
Requirements relating to the design and construction of such equipment given in Annex II to Directive
94/9/EC. See the EC Declaration of Conformity at
http://www.rockwellautomation.com/products/certification
for details. The type of protection used is
“Ex nA IIC T4 Gc” according to EN 60079-15.
• May have catalog numbers followed by a “K” to indicate a conformal coating option.
• Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air
mixtures are unlikely to occur, or are likely to occur only infrequently and for short periods. Such locations
correspond to Zone 2 classification according to ATEX directive 1999/92/EC.
• Comply to Standards: EN 60079-0:2012+A11:2013, EN 60079-15:2010, reference certificate number
DEMKO15ATEX1593X.
IEC Hazardous Location Approval
The following applies to products with IECEx certification:
• Such modules are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists,
or air are unlikely to occur, or are likely to occur only infrequently and for short periods. Such locations
correspond to Zone 2 classification to IEC 60079-0.
• The type of protection is “Ex nA IIC T4 Gc” according to IEC 60079-15.
• Such modules comply to Standards IEC 60079-0:2011, IEC-60079-15:2010, reference IECEx certificate
number IECExUL15.0125X.
• Such modules may have catalog numbers followed by a “K” to indicate a conformal coating option.
Environment and Enclosure
• Before installing, configuring, operating or maintaining this product, read this document and
the documents listed in the Additional Resources section for installing, configuring, or
operating equipment. Users should familiarize themselves with installation and wiring
instructions in addition to requirements of all applicable codes, laws, and standards.
• Installation, adjustments, putting into service, use, assembly, disassembly, and maintenance
shall be carried out by suitably trained personnel in accordance with applicable code of
practice. In case of malfunction or damage, no attempts at repair should be made. The module
should be returned to the manufacturer for repair. Do not dismantle the module.
• If this equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
• Equipment designated as ‘XT’ is certified for use only within a surrounding air temperature
range of -25…70 °C (-13…158 °F). Equipment designated as ‘LXT’ is certified for use only
within a surrounding air temperature range of -25…60 °C (-13…140 °F) even when used
with other ‘XT’ equipment. Non-XT equipment is certified for use only within a surrounding air
temperature range of 0…60 °C (32…140 °F).The equipment must not be used outside of its
range.
• Use only a soft dry anti-static cloth to wipe down equipment. Do not use any cleaning agents.
• The USB cable is not to exceed 3.0 m (9.84 ft) and must not contain hubs.
WARNING:
The USB port is intended for temporary local programming purposes only and not
intended for permanent connection. If you connect or disconnect the USB cable with power
applied to this module or any device on the USB network, an electrical arc can occur. This could
cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
WARNING:
EXPLOSION HAZARD
• Do not disconnect equipment unless power has been removed or the area is known to be
nonhazardous.
• Do not disconnect connections to this equipment unless power has been removed or the area is
known to be nonhazardous. Secure any external connections that mate to this equipment by
using screws, sliding latches, threaded connectors, or other means provided with this product.
• Substitution of components may impair suitability for Class I, Division 2.
• If this product contains batteries, they must be changed only in an area known to be
nonhazardous.
AVERTISSEMENT:
RISQUE D'EXPLOSION
• Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de
débrancher l'équipement.
• Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de
débrancher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide
de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.
• La substitution de composants peut rendre cet équipement inadapté à une utilisation en
environnement de Classe I, Division 2.
• S'assurer que l'environnement est classé non dangereux avant de changer les piles.
IMPORTANT
Any illustrations, charts, sample programs, and layout examples shown in this publication are
intended solely for the purposes of example. Since there are many variables and requirements
associated with any particular installation, Rockwell Automation does not assume
responsibility or liability for actual use based upon the examples shown in this publication.
ATTENTION:
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.
• The USB port is intended for temporary local programming purposes only and not intended for
permanent connection.
• The USB cable is not to exceed 3.0 m (9.84 ft) and must not contain hubs.
• Do not use the USB port in hazardous locations.
• Use only a soft dry anti-static cloth to wipe down equipment. Do not use any cleaning agents.
WARNING:
Special Conditions for Safe Use:
• The instructions in the user manual shall be observed.
• This equipment shall be mounted in an ATEX/IECEx Zone 2 certified enclosure with a minimum
ingress protection rating of at least IP54 (as defined in EN/IEC 60529) and used in an
environment of not more than Pollution Degree 2 (as defined in EN/IEC 60664-1) when applied
in Zone 2 environments. The enclosure must be accessible only by the use of a tool.
• This equipment shall be used within its specified ratings defined by Rockwell Automation.
• Provision shall be made to prevent the rated voltage from being exceeded by transient
disturbances of more than 140% of the rated voltage when applied in Zone 2 environments.
• This equipment must be used only with ATEX/IECEx certified Rockwell Automation backplanes.
• Secure any external connections that mate to this equipment by using screws, sliding latches,
threaded connectors, or other means provided with this product.
• Do not disconnect equipment unless power has been removed or the area is known to be
nonhazardous.
• This equipment is not resistant to sunlight or other sources of UV radiation.
• The USB port is intended for temporary local programming purposes only and not intended for
permanent connection. Do not use the USB port in hazardous locations.
ATTENTION:
This equipment is intended for use in a Pollution Degree 2 industrial environment,
in overvoltage Category II applications (as defined in EN/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 for indoor use. 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
non-metallic. 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 Standard 250 and EN/IEC 60529, as applicable, for explanations of the degrees of
protection provided by different types of enclosure.
