TM150 Temperature Alarm Channel 6

What does A35412 mean?

This alarm is initiated when the actual temperature (r4105[6]) for channel 6 on Terminal Module 150 (TM150) exceeds its configured alarm threshold (p4102[12]). A timer (p4103[6]) is also started. The alarm will clear once the temperature falls below the threshold, factoring in the defined hysteresis (p4118[6]).

• Elevated operating temperature of the component connected to TM150 channel 6, possibly due to increased mechanical friction or electrical losses.
• Alarm threshold p4102[12] is incorrectly configured and is too close to the normal operating temperature.
• Degradation of the component's internal insulation, leading to increased heat generation at standard loads.
• Loose or corroded terminal connections for the temperature sensor on TM150 channel 6, causing a minor signal offset.
• Ambient temperature in the enclosure housing the component is higher than specified, contributing to overall component temperature.

Click steps to track your progress.

1. 1

   1. Verify the current temperature reading r4105[6] in the drive's diagnostic monitor and compare with expected values for the application.

2. 2

   2. Check the configured alarm threshold p4102[12] and the alarm delay timer p4103[6] for proper tuning.

3. 3

   3. Inspect the motor or machine bearings (if applicable) for signs of wear or inadequate lubrication, which can cause friction heat.

4. 4

   4. Measure the resistance of the temperature sensor connected to TM150 channel 6 and cross-reference with its temperature-resistance curve.

5. 5

   5. Confirm that cooling fans for the component (e.g., motor fan) are operating correctly and not obstructed.