Universal Robots CB3 Error Code C201A1: SCB uA is not responding

Universal Robots Robot Minor System

Model: CB3 (UR3/UR5/UR10) | Code: C201A1

Applicable Systems
UR3 UR5 UR10 UR3e UR5e UR10e UR16e UR20 UR30

Symptoms

No data or invalid data was received from the Safety Control Board uA at initialization

Possible Causes

  • No data or invalid data was received from the Safety Control Board uA at initialization

Troubleshooting Steps

  1. Step 1: Conduct a complete rebooting sequence,
    Check if the issue is resolved after this step
  2. Step 2: Check that the ethernet cable between Motherboard and Safety Control Board is connected and verify that the setup of the Safety Configuration is valid.
    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.

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

Category: Robot