Rockwell Automation 1791DS-IBxxxx Guard I/O DeviceNet Safety Modules - Manual (Page 13)

Rockwell Automation Publication 1791DS-UM001J-EN-P - May 2013 13
Chapter
1
About the Modules
This chapter includes important overview information and precautions for using
Guard I/O modules that implement the DeviceNet safety protocol. Also
included is an overview of how these Guard I/O modules are used within a safety
system.
Before You Begin Always observe the following guidelines when using a module, noting that in this
manual we use safety administrator to mean a person qualified, authorized, and
responsible to secure safety in the design, installation, operation, maintenance,
and disposal of the machine.
• Thoroughly read and understand this manual before installing and
operating the module.
• Keep this manual in a safe place where personnel can refer to it when
necessary.
• Use the module properly according to the installation environment,
performance, and functions of the machine.
• Verify that a safety administrator conducts a risk assessment on the
machine and determines module suitability before installation.
• Verify for CE LVD compliance, the external power supply that provides
power to the modules is safety extra-low voltage (SELV) rated. Some
Rockwell Automation Bulletin 1606 power supplies are SELV-compliant.
Verify this in the Bulletin 1606 Installation Instructions.
Verify that the Guard I/O firmware version is correct prior to commissioning the
safety system, noting that firmware information related to safety controllers is
available at
http://www.rockwellautomation.com/products/certification/safety .
Topic Page
Understand Suitability for Use 14
Follow Precautions for Use 14
Precautions to Mount, Wire, and Clean 17
I/O Module Overview 17
Guard I/O Catalog Numbers 19
About CIP Safety in DeviceNet Safety Architectures 19
Identify Major Parts of the Modules 21