8 - troubleshooting and maintenance, Chapter objectives, Troubleshooting recommendations – Rockwell Automation 2707-MVH232_MVP232 MicroView Operator Interface Module User Manual
Page 55: Equipment required, Chapter 8, Troubleshooting and maintenance, Chapter

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Publication 2707-UM005B-EN-P
Chapter
8
Troubleshooting and Maintenance
Chapter Objectives
This chapter describes how to isolate and correct the most common
operating problems and routine maintenance tasks. It contains these
sections:
Troubleshooting
Recommendations
Most errors are accompanied by an error message. Find the error
message in the error message listing and perform the recommended
corrective action.
If you encounter a problem that is not listed in the table, contact your
local Allen-Bradley distributor for assistance.
Equipment Required
Other than verifying that the correct power source is connected to the
terminal (use a voltmeter), no electronic diagnostic equipment is
required for troubleshooting.
Section
Page
Troubleshooting Recommendations
Equipment Required
Common Operating Problems
Error Messages
Communication Error Codes
Using the Test Functions
Display Test
Core ROM Test
System RAM Test
System ROM Test
Program ROM Test
Keyboard Test
Communications Port Test
Watchdog Test
Cleaning the display window.
ATTENTION
!
Always disconnect power when checking wiring
connections. Failure to take adequate precautions
may result in severe electrical shock or equipment
damage.