# \#arc-welding-power-source-pulsed-mig-problem **URL:** https://tech-community.robotics.abb.com/tag/arc-welding-power-source-pulsed-mig-problem/144.md [Latest](https://tech-community.robotics.abb.com/latest.md) · [Categories](https://tech-community.robotics.abb.com/categories.md) · [Tags](https://tech-community.robotics.abb.com/tags.md) --- ## [Pulsed arc welding problem](https://tech-community.robotics.abb.com/t/pulsed-arc-welding-problem/5899)
**Author:** [@MahmoudSaeed](https://tech-community.robotics.abb.com/u/MahmoudSaeed)\ **Replies:** 0\ **Last updated:** [January 6, 2014, 4:51pm UTC](https://tech-community.robotics.abb.com/t/pulsed-arc-welding-problem/5899 "2014-01-06T16:51:58Z")
2 days ago I programmed module to weld stainless steel pipes using pulsed arc welding method and it worked fine. But today with same parameters the robot stops welding immediately after striking arc with error message “R…