4 - module diagnostics and troubleshooting, Introduction, Safety considerations – Rockwell Automation 1769-IF4FXOF2F Compact Combination Fast Analog I/O Module User Manual
Page 59: Chapter 4, Module diagnostics and troubleshooting, Introduction safety considerations, Chapter
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Publication 1769-UM019A-EN-P - October 2008
59
Chapter
4
Module Diagnostics and Troubleshooting
Introduction
Safety Considerations
Safety considerations are an important element of proper
troubleshooting procedures. Actively thinking about the safety of
yourself and others, as well as the condition of your equipment, is of
primary importance.
The following sections describe several safety concerns you should be
aware of when troubleshooting your control system.
Power Status Indicator
When the green status indicator on the analog module is illuminated,
it indicates that power is applied to the module.
Activate Devices When Troubleshooting
When troubleshooting, never reach into the machine to actuate a
device. Unexpected machine motion could occur.
Topic
Page
Non-critical Versus Critical Module Errors
Contacting Rockwell Automation
ATTENTION
Never reach into a machine to actuate a switch because
unexpected motion can occur and cause injury.
Remove all electrical power at the main power-disconnect
switches before checking electrical connections or
inputs/outputs causing machine motion.