TM120/TM150 Temperature Alarm Channel 1

What does A35212 mean?

This alarm is initiated when the actual temperature (r4105[1]) for channel 1 on Terminal Module 120 (TM120) or Terminal Module 150 (TM150) exceeds its configured alarm threshold (p4102[2]). A timer (p4103[1]) is also started. The alarm will clear once the temperature falls below the threshold, factoring in the defined hysteresis (p4118[1]).

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check for any immediate causes of temperature increase for the affected component, such as temporary overloads or environmental factors.

2. 4

   Verify the temperature sensor operation and connection for channel 1.

3. 5

   Review the alarm threshold setting (p4102[2]) and hysteresis (p4118[1]) to ensure they are appropriate for the application.