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On September 28, 2018, Robotiq released an updated version of its vision system URCap (UCC-1.6.3). The software fixes an issue consisting in the Robotiq Wrist Camera preventing Universal Robots' e-Series cobots to boot. Browse to the Wrist Camera page on the support.robotiq.com website to download the latest version of the URCap.
The issue happens exclusively with e-Series robots.

- The bug occurs when the vision system URCap is uninstalled without following the exact uninstall procedure.
- The consequence is critical and prevents the robot from booting (black screen at power-up).
- Recovery is possible, but quite complex.

URCap and vision server update/uninstall procedure
Follow the steps below very carefully.
These can be found in the instruction manual of the Wrist Camera if you browse to support.robotiq.com.
On the teach pendant, tap the Installation button in the ribbon at the top of the screen.
Select URCaps in the navigation pane on the left.
Tap the Camera button and go to the Dashboard tab.
Tap the Stop camera button.
Tap the Uninstall button.
Remove the USB storage device.
Tap the triple bar icon in the upper right corner of the screen.
Select Settings.
Tap System in the navigation pane on the left and select URCaps.
In the Active URCaps textbox, select the Wrist Camera URCap; the URCap should be highlighted.
Tap the minus (-) button to uninstall the URCap.
Restart PolyScope to complete the uninstallation process.
Turn off or reboot the robot controller.
Connect the USB storage device to a PC.
Format it using FAT32.

URCap and vision server installation procedure
Browse to support.robotiq.com and select the Wrist Camera.
Download the latest UCC-X.X.X compressed file.
Decompress the content of the latest UCC-X.X.X compressed file on the USB storage device.
Make sure the .urcap file and the vision system folder are on the root of the USB storage device
With the robot controller ON, insert the USB storage device containing the latest URCap and vision server in the 4-port USB hub.
From the teach pendant, tap the triple bar icon in the upper right corner; select Settings.
Select System in the navigation pane on the left.
Tap the URCaps button.
Tap the plus (+) sign and open Robotiq_Wrist_Camera-X.X.X.urcap from the USB stick.
Tap the Restart button and wait for PolyScope to reload.
Tap the Installation button in the ribbon at the top of the screen.
Select URCaps in the navigation pane on the left.
Tap Camera and select the Dashboard tab.A popup error (CH-104) will display*.Tap the Uninstall button and wait until completion.
Tap Install and wait for the vision server to be installed.
Wait for the vision system to start.

*This is a known issue: the popup error is an undesired side effect required for a successful installation of the software release 1.6.3.

Do not unplug the USB storage device or the USB license dongle, even after the installation.
Uninstalling version 1.6.2 of the software inadequately can prevent the robot from booting.

Thank you for your understanding and collaboration.
Best Regards,


  • bsawlorbsawlor Partner Posts: 30 Apprentice
    Hi Nicolas, with the introduction of the new gripper base that connects directly to the e-series, are there plans to modify, or do the same for the camera?  Also, are there plans to have a splitter available for multiple grippers, potentially with one camera on the arm?
  • Hi Brock,

    The camera requires a fast USB connection for data transmission which is not available for the moment on the wrist connector.  Also, we are working at the moment for a dual gripper splitter for the e-Series and this should be available soon.

    Best regards,

  • MiftahurMiftahur Posts: 1 Recruit
    Hi Nicolas, I am facing issues to install the urcap files in Polyscope 5.3 (UR10e). I can locate the .urcap file by pressing the "+" sign but the restart button seems disabled. How to enable the restart button ?
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