Controller Internal Temperature Approaching Operating Limit (Minor Fault)

Was bedeutet T17:C35 ?

This is a minor fault indicating that the controller's internal temperature is approaching its operating limit. It sets the Diagnostics minor fault bit and is recorded in the minor fault log, but it is not displayed on the front panel. The Diagnostics minor fault bit will clear if the temperature returns to an acceptable range; however, the minor fault record remains.

• Controller internal temperature rising close to its operational limit
• Transient environmental conditions causing a temperature increase

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1. 1

   Review the minor fault log for occurrences of T17:C35 to identify frequency or patterns

2. 2

   Monitor the controller's internal temperature (if accessible via diagnostics) during operation

3. 3

   Measure the ambient temperature within the control panel enclosure using a calibrated thermometer

4. 4

   Visually inspect controller heatsinks and cooling vents for dust accumulation or obstructions

5. 5

   Verify the operational status of any enclosure cooling fans or air conditioning units, confirming proper setpoints