Instruction Manual

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 109
Chapter 5
Diagnostics and Troubleshooting
This chapter describes how to troubleshoot the module.
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.
Status Indicators
When any status indicator on the module is illuminated, it indicates that power is
applied to the module.
Topic Page
Safety Considerations 109
Module Operation versus Counter Operation 111
Counter Defaults 111
Module Diagnostics 112
Non-critical versus Critical Module Errors 113
Module Error Definition 114
Error Codes 116
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.