Thermal overload of output stage or internal unit fault

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This fault indicates excessive temperature within the inverter's output stage or a general internal malfunction of the unit. Common causes include inadequate cooling, high ambient temperatures, or operation under excessive load.

• Accumulation of heat due to a dirty heat sink.
• Ambient temperature around the unit is too high.
• Lack of proper ventilation preventing heat dissipation.
• Excessive load placed on the drive.

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1. 1

   Clean the heat sink of the MOVIMOT® unit.

2. 2

   Reduce the ambient temperature surrounding the unit.

3. 3

   Ensure there is adequate space and airflow to prevent heat accumulation.

4. 4

   Reduce the load on the drive.

5. 5

   Switch off the 24 VDC supply voltage to reset the fault.

6. 6

   Issue a reset command via MOVILINK®.