Error - How to Troubleshoot Connection Issues with a Robotiq Gripper

Context
If your Robotiq gripper is not communicating properly or works intermittently, it is likely caused by a connection problem between the gripper and its coupling or cable. This article outlines how to diagnose and resolve such issues.

Information

• This applies to grippers connected via RS485, the UR wrist, or the Robotiq Wrist Camera.

Step-by-Step Troubleshooting

1. Clean the Contacts

   • Use rubbing alcohol and a soft cloth to clean the electrical contacts between the gripper and the coupling.

   • This helps remove oxidation or debris that may affect communication.

2. Wiggle the Cable

   • Gently move the cable and observe the gripper’s status LED.

   • If the LED turns red or off during movement, this suggests broken or damaged wires inside the cable.

3. Try Another Cable or Coupling

   • If available, replace the cable or coupling temporarily to see if the issue resolves.

   • This will confirm whether the cable is at fault.

Solution

• If the connection remains unstable, the most likely fix is to replace the cable.

• Contact Robotiq Support at support@robotiq.com and include:

  • A clear photo of the damaged cable (helps identify the correct part)

  • Your product serial number, if possible

Pro Tip:
Most connection issues are caused by cable stress. Reviewing and improving your cable management can significantly enhance long-term reliability.

Conclusion
Most gripper connection problems stem from cable or coupling issues. Clean the contacts, test with another cable, and contact support for a replacement if needed.

Contact Robotiq Support