Hello all,
Maybe someone can help me with an issue one of my clients has run into.
They are using an old ABB robot, S4 controller for arc welding with an old Fronius Power Source.
What's happening is that, randomly, one of the welds comes out much smaller than it should be, as if the amps drop suddenly, or the speed increases drastically.
We've had ABB check the robot, and it got a green bill of health.
We've had FRONIUS replace the welding equipment off a different robot. The error persisted.
The only think I can think of is that the AO controlling the weld parameters may be malfunctioning. The issue is that whatever happens, doesn't happen regularly. It's random in the extreme and any weld can be bad.
But, considering the age of the equipment, I have no idea where to even check for that.
Does anyone have any suggestions or ideas as to what this may be? I've already contacted all my contacts that may have had, at one point, a robot as old as that, but I couldn't manage to find any relevant help.