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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

15

Motor Stalled

Vacon · NX Liquid-Cooled Drive

What does 15 mean?

The motor stall protection has tripped, indicating that the motor has either stopped or is operating at a very low speed while a run command is active and under mechanical load. This typically suggests an excessive mechanical load or a mechanical obstruction preventing motor rotation.

Common Causes

  • Motor shaft mechanically locked or jammed.
  • Excessive load torque preventing rotation (P0200).
  • Incorrect motor parameters configured (P0201).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the motor and its connected load for any mechanical obstructions, binding, or excessive friction.

  2. 2

    Verify that the motor is not attempting to accelerate into an immovable or excessively heavy load.

Browse all codes in this manual (52)
Verified technical data. Last updated: April 2026

Related Faults

1Overcurrent10Input Phase Failure12Brake Chopper Supervision Fault
Source: Vacon NX Liquid-Cooled Drive
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