Mechanical Weakening Detection 2

What does UL5 mean?

The drive detected undertorque conditions consistent with mechanical weakening or fatigue, as defined by the settings in L6-08 [Mechanical Fatigue Detect Select]. This fault suggests potential degradation of critical machine components or a loss of load. If unaddressed, this could lead to unexpected mechanical failure, loss of production, or unsafe operating conditions.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Perform a Fault Reset to clear the fault from the drive after identifying and resolving the issue.