Browse FAQs

What causes an OHF Overheating fault on the ATV320 drives?

Published date: 20 January 2020

What is an OHF fault on an ATV320 drive?

Product Line:
Altivar 320, Machine Drives


Over heating

OHF [Drive overheat] • Drive temperature too high. • Check the motor load, the drive ventilation and the ambienttemperature. 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).

Was this helpful?

What can we do to improve the information ?

Can't find what you are looking for?

Reach out to our customer care team to receive information on technical support, assistance for complaints and more.