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What is OTF on the ATS48?

What is OTF on the ATS48?
Product Line:
Altistart 48
All serial number
The unit is faulting on OTF (Motor thermal fault) cause by the motor PTC probe being connected to the soft starter.
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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