Rockwell Automation 1762-Lxxxx MicroLogix 1200 Programmable Controllers - Manual (Page 123)

Publication 1762-UM001G-EN-P - March 2011
Troubleshoot Your System C-3
Controller Error Recovery
Model Use the following error recovery model to help you diagnose software and
hardware problems in the micro controller. The model provides common
questions you might ask to help troubleshoot your system. Refer to the
recommended pages within the model for further help.
Identify the error code and
description.
Refer to page C-2 for
probable cause and
recommended action.
Clear Fault.
Correct the condition
causing the fault.
Return controller to RUN or
any of the REM test modes.
Test and verify system
operation.
Refer to page C-2 for
probable cause and
recommended action.
Is the Fault
LED on?
Is the RUN
LED on?
Is the Power
LED on?
Are the wire
connections tight?
Tighten wire connections.
Does the
controller have
power supplied?
Check power.
Refer to page C-2 for
probable cause and
recommended action.
Is an input LED
accurately showing
status?
Refer to page C-2 for
probably cause and
recommended action.
Is the error
hardware related?
Start
No
No
No No
No
No No
Yes
Yes
Yes
Yes
Yes
Yes
End
Yes