Hello,
I'm French too with the same project for expended foam and I think I can help you.
I have a KR30 robot with KRC1.
https://www.youtube.com/watch?v=yG8GCEFnQt0
I know this overcurrent error, I fixed it on mine
Just take contact.
Jérôme,
Usinage-et-Gravure
PS : Sorry I didn't see the replies with my ad blocker !