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What is OTF on the ATS48?

Published date: 18 June 2020

Issue: 
ATS48 OFT fault code.
 
Product Line:
Altistart 48
 
Environment:
All serial number
 
Cause:
The unit is faulting on OTF (Motor thermal fault) cause by the motor PTC probe being connected to the soft starter.
 
Resolution:
OTF is Motor Thermal Fault Detected by the PTC probes      
  • Check the mechanism for wear, mechanical play, lubrication, and blockages.     
  • Make sure the soft starter and motor are sized properly for the load and application.
  • Check the value of the PtC setting in the PrO menu.
  • Wait for the motor to cool before restarting.

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