31

Power Wiring Error (Adv. Code 1)

Vacon · X4 AC Drive

What does 31 mean?

This fault occurs if an IOC (Internal Overcurrent) fault is detected during the power wiring test, indicating a problem with the drive's power wiring. This signifies a serious wiring discrepancy or an internal component issue that could lead to immediate overcurrent conditions and damage.

Complete Troubleshooting Guide

  1. 1

    Power down the drive and meticulously check all input and output power wiring for any misconnections, shorts, or loose terminals.

  2. 2

    Verify that no input power wiring is connected to the load power terminals, which can instantly cause an internal overcurrent.

  3. 3

    If the wiring appears correct, contact the factory, as an internal component failure might be present, especially related to the drive's overcurrent detection during power-up or wiring tests.