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What is an OHF Fault on an ATV312?

Issue:
What is an OHF Fault on an ATV312?

Product :
 ATV312 

Environment: 
All

Cause: 
DRIVE OVERHEAT
Drive temperature too high

Resolution:
Check the motor load, the drive ventilation and the environment. Wait for the drive to cool before restarting.
Probable cause is the drive or ambient temperature are too high or the continuous motor current load is too high.
Check the motor load, the drive ventilation (fans) and the environment.  Wait for the drive to cool before restarting.
Check the internal fans.
Could be an inoperative thermal sensor or microprocessor in the main control board- the drive  could be reading the temperature wrong.
Please make sure to consider the threshold of 118% = "OHF" threshold (drive overheating)
 
 
 
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