Rockwell Automation 1771-OQ/B Isolated 24V dc Output Module Installation Instructions User Manual
Page 2
 
Publication 1771-IN081B-EN-P - June 2004
2 Isolated 24V dc Output Module
Throughout this manual we use notes to make you aware of safety considerations.
WARNING
Identifies information about practices or circumstances 
that can cause an explosion in a hazardous environment, 
which may lead to personal injury or death, property 
damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful 
application and understanding of the product.
ATTENTION
Identifies information about practices or circumstances that can 
lead to personal injury or death, property damage, or economic 
loss. Attentions help you:
• identify a hazard
• avoid a hazard
• recognize the consequence
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 
publication 60664-1), at altitudes up to 2000 meters without derating.
This equipment is considered Group 1, Class A industrial equipment 
according to IEC/CISPR Publication 11. Without appropriate 
precautions, there may be potential difficulties ensuring electromagnetic 
compatibility in other environments due to conducted as well as radiated 
disturbance.
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 
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.
See NEMA Standards publication 250 and IEC publication 60529, as 
applicable, for explanations of the degrees of protection provided by 
different types of enclosure. Also, see the appropriate sections in this 
publication, as well as the Allen-Bradley publication 1770-4.1 ("Industrial 
Automation Wiring and Grounding Guidelines"), for additional 
installation requirements pertaining to this equipment.