Universal Robots e-Series Error Code C349A0: Length check error, incorrect length detected for base light ring: {unsigned}

Universal Robots Robot Major System

Model: e-Series (UR3e/UR5e/UR10e/UR16e/UR20/UR30) | Code: C349A0

Applicable Systems
UR3 UR5 UR10 UR3e UR5e UR10e UR16e UR20 UR30

Symptoms

The detected lenght of the base light ring is not what is expected.

Possible Causes

  • The detected lenght of the base light ring is not what is expected.

Troubleshooting Steps

  1. Step 1: There is an issue validating the base light. If problem persists, contact your local Universal Robots service provider for assistance.
    Check if the issue is resolved after this step

How to Reset

Power cycle the robot controller and perform a complete reboot sequence. If the error persists, update the software to the latest version.

Related Universal Robots Fault Codes

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Source: Universal Robots Official Error Codes Directory (https://www.universal-robots.com/manuals/EN/PDF/Shared/ErrorCodes/ErrorCodes.pdf)

Category: Robot

Published: 2026-10-20