Universal Robots Forum

CB3 vs e-series

Is e-series more stable than CB3 regarding protective stop or deviation path? We are facing a lot of protective and deviation path error with CB3.

Hi Rami,

Facing a lot of protective stops and path deviations would indicate that something isn’t set up right in your application, moving to e-Series platform wouldn’t necessarily help.

Please take a look at the below article which includes explanations of some of the common causes and how they can be alleviated.


Thank you for your reply. We have gone already throught this documents. I hope we could improve our application.

Hi Rami,

Did it help you narrow down the potential root cause at all? The distributor that sold you the robot should also be able to give you some pointers as to how to fine tune the application.

In our experience the E-Series are WAAAYYY more fragile than the CBSeries.
We faced a lot of troubles with them. We have the same program running in both.
One e-series we have problem just out of the box!
At least we got waranty in the e-series. But probably we won´t buy anothers URRobots becouse the support here in Brazil is slow to sort out the problems.