17

Motor Underload

Vacon · NX Liquid-Cooled Drive

What does 17 mean?

The motor underload protection has tripped, indicating that the motor is operating with significantly less mechanical load than anticipated or with no load at all while still receiving a run command. This can happen if the load detaches or if a process requiring power is disengaged.

Common Causes

  • Motor speed too low for commanded torque (P0208).
  • Light load condition below minimum threshold.
  • Incorrect load detection parameters.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the mechanical load connected to the motor to ensure it is present and functioning correctly.

  2. 2

    Verify that the process driven by the motor is operating as expected and has not become disengaged.

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Verified technical data. Last updated: March 2026

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Source: Vacon NX Liquid-Cooled Drive