TM150 Temperature Alarm Channel 7

What does A35413 mean?

This alarm is initiated when the actual temperature (r4105[7]) for channel 7 on Terminal Module 150 (TM150) exceeds its configured alarm threshold (p4102[14]). A timer (p4103[7]) is also started. The alarm will clear once the temperature falls below the threshold, factoring in the defined hysteresis (p4118[7]).

• Monitored component on channel 7 experiencing higher thermal stress from increased duty cycle or sustained high load conditions.
• Alarm parameter p4102[14] is set too low for the application's typical operational profile, leading to premature alarms.
• Partial failure of the component's internal cooling system (e.g., blocked internal cooling channels).
• Interference or noise on the temperature sensor signal line connected to TM150 channel 7, causing transient high readings.
• Sensor connected to channel 7 is beginning to fail, showing an upward drift in temperature readings.

Click steps to track your progress.

1. 1

   1. Observe the actual temperature r4105[7] and the timer status p4103[7] in the control system's diagnostic interface.

2. 2

   2. Validate the alarm threshold p4102[14] against the component's thermal limits provided by the manufacturer.

3. 3

   3. Conduct a visual inspection of the component connected to channel 7 for any signs of overheating like discoloration or burnt smell.

4. 4

   4. Measure the resistance of the temperature sensor at the TM150 terminal block to ensure it matches the component's actual temperature.

5. 5

   5. Check the component's load profile against its rated capacity to determine if it is being continuously overloaded.