Universal Robots e-Series Error Code C740A20: 24V IO voltage is outside of the allowed range: {float}V

Universal Robots Robot Minor Power

Model: e-Series (UR3e/UR5e/UR10e/UR16e/UR20/UR30) | Code: C740A20

Applicable Systems
UR3 UR5 UR10 UR3e UR5e UR10e UR16e UR20 UR30

Symptoms

An error occurred in the 24V IO supply

Possible Causes

  • An error occurred in the 24V IO supply

Troubleshooting Steps

  1. Step 1: Check the fuse in the control box,
    Check if the issue is resolved after this step
  2. Step 2: Check supply to the IOs is attached,
    Check if the issue is resolved after this step
  3. Step 3: Check for shorts on anything attached to the IOs,
    Check if the issue is resolved after this step
  4. Step 4: Conduct a complete rebooting sequence,
    Check if the issue is resolved after this step
  5. Step 5: Update software,
    Check if the issue is resolved after this step
  6. Step 6: 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

Comments (0)

Share your experience to help others facing the same problem.

No comments yet. Be the first to share your experience!

Leave a Comment

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

Category: Robot