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Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module Installation Instructions User Manual

Installation instructions, Flex i/o profibus adapter module, Cat. no. 1794-apb series b

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Publication 1794-IN087C-EN-P - July 2005

Installation Instructions

FLEX I/O PROFIBUS Adapter Module

Cat. No. 1794-APB Series B

Important User Information

Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and
Maintenance of Solid State Controls
(Publication SGI-1.1 available from your local
Rockwell Automation sales office or online at
http://www.literature.rockwellautomation.com) describes some important
differences between solid state equipment and hard-wired electromechanical
devices. Because of this difference, and also because of the wide variety of uses for
solid state equipment, all persons responsible for applying this equipment must
satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or
consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with any
particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of
information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written
permission of Rockwell Automation, Inc., is prohibited.

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.

WARNING

When you insert or remove the module while backplane

power is on, 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

If you connect or disconnect wiring while the field side

power is on, 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..

ATTENTION

FLEX I/O is grounded through the DIN rail to chassis

ground. Use zinc plated yellow-chromate steel DIN rail to

assure proper grounding. The use of other DIN rail materials

(e.g. aluminum, plastic, etc.) that can corrode, oxidize, or are

poor conductors, can result in improper or intermittent

grounding.

ATTENTION

Preventing 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.

• If available, use a static-safe workstation.

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