29

Stuck Key Error (Adv. Code 0)

Vacon · X4 AC Drive

What does 29 mean?

This fault is triggered if the drive detects a persistent key press during power-up. This can be caused by a faulty keypad button or a user inadvertently holding a key down while powering on the drive. This prevents proper initialization and operation via the keypad.

Complete Troubleshooting Guide

  1. 1

    Ensure no keys are being held down on the keypad during the drive's power-up sequence.

  2. 2

    Inspect the keypad for any physically stuck, damaged, or unresponsive buttons. Gently try to unstick any depressed keys.

  3. 3

    If the keypad appears defective, try replacing it with a known good keypad unit.

  4. 4

    If the issue persists after inspection and replacement, consult the factory for further assistance as there may be an internal issue with the control board.