AC Drive Board Overtemperature Fault

What does 132 mean?

The temperature on the AC drive's power board has exceeded its safe operating limit, indicating a critical overheating condition. This fault is typically caused by insufficient cooling air, high ambient temperatures, or internal component issues. Sustained high temperatures on the board can lead to permanent damage to sensitive electronic components.

• Failure of internal cooling fans dedicated to the power board components, leading to localized heat buildup.
• High ambient temperature within the AC drive enclosure, exceeding the board's design limits.
• Clogged or restricted ventilation paths within the drive's internal structure, preventing airflow to power components.
• Overload on the drive's internal DC bus or output stages, generating excessive heat on power devices.
• Faulty temperature sensor on the power board providing an erroneous high reading.

Click steps to track your progress.

1. 1

   1. Verify the drive's power board temperature reading (e.g., P8-04) and compare it with the ambient temperature inside the enclosure.

2. 2

   2. Inspect all internal cooling fans, including those not directly on the heatsink, for proper operation and ensure they are spinning.

3. 3

   3. Remove any dust or debris from internal air channels and components on the power board using a soft brush or non-conductive compressed air.

4. 4

   4. Measure the supply voltage (e.g., on DC bus terminals) and output current (e.g., P1-05) to ensure the drive is operating within its specified electrical limits.

5. 5

   5. Confirm that the drive is not exposed to direct sunlight or external heat sources that significantly raise the internal enclosure temperature.