What is OTF on the ATS48?

Issue:
ATS48 OFT fault code.

Product Line:
Altistart 48

Environment:
All serial number

Cause:
The unit is faulting on OTF (Motor thermal fault) caused 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.

Released for: Schneider Electric USA