Power unit: Air intake overtemperature

What does A05002 mean?

The alarm threshold for the air intake temperature of the power unit has been reached, typically at 42 °C. This indicates insufficient cooling or high ambient temperatures affecting the drive's internal environment. If the air intake temperature increases by an additional 13 K, it will lead to fault F30035, likely resulting in a drive shutdown.

• Insufficient ventilation within the control cabinet due to blocked air filter mats or inadequate fan capacity.
• Ambient room temperature consistently exceeding the drive's maximum specified air intake temperature (e.g., >40°C).
• Drive unit positioned too close to other heat-generating equipment (e.g., transformers, other drives) without proper separation.
• Recirculation of hot exhaust air from the cabinet or other equipment back into the drive's air intake.

Click steps to track your progress.

1. 1

   Measure the air intake temperature directly at the drive's intake vents using a calibrated thermometer.

2. 2

   Inspect and clean or replace air filter mats on the control cabinet door to ensure unrestricted airflow.

3. 3

   Verify that control cabinet cooling fans are operational, rotating freely, and pushing/pulling air in the correct direction.

4. 4

   Measure the internal temperature within the control cabinet using a thermal camera or multiple thermometers at different locations.

5. 5

   Relocate the drive to an area with lower ambient temperature or upgrade the control cabinet's ventilation system capacity.