Rockwell-automation AADvance Controller Troubleshooting and Maintenanc Instrukcja Użytkownika Pobierz pdf (Strona 23)

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Document: 553634

(ICSTT-RM406F_EN_P) Issue: 089:

3-1

Troubleshooting covers system faults, module and channel faults, termination assemblies and field fault.

The corrective troubleshooting and maintenance regime is founded on a series of automatic diagnostic

systems, fault warning through module status indicators (LEDs) or reported to the application through

the Workbench and a principle of repair by replacement. All modules are replaceable.

In a safety critical redundant configuration remove only one module at a time unless a system

shutdown is planned.

In This Chapter

Prerequisites for Troubleshooting ................................................................. 3-1

Recovery Mode and How it Affects Controller Operation ..................... 3-2

Internal Diagnostics ............................................................................................ 3-2

Actions of the Diagnostic Systems ................................................................. 3-3

Latching and Non-Latching Faults ................................................................... 3-3

Common Fault Alarm ........................................................................................ 3-4

Fault Indications .................................................................................................. 3-4

Fault Reporting Reference Information ......................................................... 3-8

Understanding the State Variable (<tagname>.STA) ............................... 3-15

View Module Firmware Versions .................................................................. 3-17

Prerequisites for Troubleshooting

The troubleshooting procedures described in this manual make the premise that the System

Healthy alarm is connected to a variable in the AADvance Workbench and the alarm can be used as a

starting point for activities or, the processor module has defaulted to the Recovery Mode because of a

critical firmware failure.

The fault finding procedures make the following assumptions:

Chapter 3

About Troubleshooting

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Rockwell-automation AADvance Controller Troubleshooting and Maintenanc Instrukcja Użytkownika Strona 23