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What is an OHF fault on an ATV32 drive?

ATV32 drive showing an OHF fault

Product Line:
Altivar 32


Over heating

OHF [Drive overheat] • Drive temperature too high. • Check the motor load, the drive ventilation and the ambient
temperature. Wait for the drive to cool down before restarting.
Check to see if the fans are running.  Drive thermal state of 70% and above should allow the fans to come on.
Under monitoring NON- menu.
THd [Drv.thermal state] % Drive thermal state.  100% = Nominal thermal state, 118% = "OHF" threshold (drive overload).

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