Power board over temp

What does 29 mean?

The heat-sink cut-out temperature of the drive's power board has been reached, indicating excessive internal temperature. This can be caused by high ambient temperature, blocked ventilation, sustained overload, or a malfunctioning cooling fan, risking damage to power components.

• Ambient temperature inside the control cabinet exceeding the drive's specified operating limit (e.g., above 40°C or 50°C).
• Blocked or restricted airflow to the drive's heatsink due to dust accumulation, debris, or improper cabinet ventilation.
• Failure of one or more cooling fans within the drive, preventing heat dissipation from the heatsink.
• Sustained operation at high output current close to or exceeding the drive's continuous current rating (e.g., Inom).
• Malfunction of the internal thermal sensor providing an erroneous high temperature reading.

Click steps to track your progress.

1. 1

   Verify the ambient temperature inside the control cabinet does not exceed the drive's maximum operating temperature (e.g., typically 40-50°C).

2. 2

   Inspect the drive's heatsink and cooling fans for dust buildup, obstructions, or non-functional fan blades.

3. 3

   Confirm cabinet ventilation fans are operating correctly and air filters are clean, ensuring proper airflow around the drive.

4. 4

   Monitor the drive's output current (via LCP display) and compare it against its continuous current rating (e.g., LCP data view P16-10).

5. 5

   Check Parameter P1-30 (Motor Current) to ensure it is correctly configured for the motor's nominal current, preventing overcurrent situations.