Frequency converter under temperature

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The heat sink temperature of the frequency converter has fallen below -10 °C. This indicates that the ambient operating temperature is too low for the drive to function correctly or safely.

• Internal temperature of the frequency converter too low.
• Ambient temperature below operating range.
• Faulty temperature sensor (P1-30) in the converter.
• Inadequate ventilation or blocked airflow.
• Low load operation leading to reduced internal heating.

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1. 1

   Check the ambient temperature in the vicinity of the frequency converter and ensure it is maintained above -10 °C.