Controller recovered from internal temperature fault

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This fault indicates that the controller has successfully recovered from an automatic shutdown caused by exceeding its internal temperature threshold. The module's temperature has decreased to a suitable level, re-enabling controller voltages.

• Controller recovered from automatic shutdown due to high internal temperature
• Module's temperature decreased to a suitable level after exceeding temperature threshold of preservation fault

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1. 1

   Inspect the electrical cabinet's ventilation openings, filters, and cooling fans for obstructions or proper operation.

2. 2

   Measure the internal ambient temperature within the electrical cabinet and compare it against the Allen-Bradley Logix 5000 operating temperature specifications.

3. 3

   Verify proper spacing and airflow around the Logix 5000 controller modules as per the installation manual guidelines.

4. 4

   Measure the input voltage to the Logix 5000 power supply module and verify it is within the specified operating range.

5. 5

   Inspect the Logix 5000 controller modules and rack for excessive dust accumulation that could hinder heat dissipation.