Motor underload

What does 17 mean?

The motor underload protection has tripped, indicating that the motor's current draw is significantly lower than expected given its operating conditions and commanded speed. This typically suggests a loss of mechanical load, a broken coupling, or an issue with the driven equipment. Running under severe underload can sometimes lead to inefficient operation or potential runaway conditions in certain applications.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify the motor's current draw against the expected current for the application and the drive's underload threshold settings.