Rockwell Automation AADvance Controller Troubleshooting and Maintenance Manual - Manual (Page 61)

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Document: 553634
(ICSTT-RM406F_EN_P) Issue: 089:
5-1
The AADvance controller indicates a channel fault that could be a faulty termination assembly or field
fault by a Channel LED on an I/O module showing amber instead of the usual green. This chapter
provides recommended approaches to troubleshoot and remedy channel/field faults. It should be read
in conjunction with the operation and maintenance manual or equivalent documentation for the
system.
WARNING ELECTRICAL ARCS AND EXPLOSION RISK IN HAZARDOUS
AREAS
If you connect or disconnect wiring, modules or communications cabling while
power is applied, an electrical arc can occur. This could cause an explosion in
hazardous location installations. Do not remove wiring, fuses, modules or
communications cabling while circuit is energized unless area is known to be
non hazardous.
Failure to follow these instructions may result in personal injury.
In This Chapter
Examine the State Variable ............................................................................... 5-1
Start Troubleshooting Channel/Field Faults ................................................. 5-3
Replacing Fuses .................................................................................................. 5-12
Install a New Termination Assembly ........................................................... 5-14
Examine the State Variable
You will use the State variable (<tagname>.STA) to trace field faults. To do this, you have to identify
the tagname of the variable, and then add the variable to the Spy List. Do the following:
Chapter 5
Troubleshooting and Rectifying Channel/Field Faults