How to set Burn back parameter in lincoln power wave i 400

[gcsreenath]

Hello!

how to i set the parameter for Burn back in Power wave i 400

i find a ball at the end of the weld for about 2 mm

[rzapo]

do you have it mountid on robot. I400 an motoman robot?
please send me some picture.

[gcsreenath]

Hello!,

its a Lincoln Poer wave i400 and the torch is mounted on to the Fanuc robot

[SkyeFire]

Is this something programmed in the Lincoln, or in the robot?  If the latter, this question might be something better asked in the Fanuc forum.

[cunaf]

BB is a function of the robot controller if using a 455 or i400.  BB 1st has to be enabled under Menus-->Setup-->Weld System.  As for the timing & parameters look under Data-->Weld Process--Burn Back.  I  recomend (for .045 wire) a setting of  300wfs/1.0trim/0.08sec duration.  NOTE:  If BB time is too short the wire may fuse to weld.  Then the Lincoln will clear the wirestick, if enabled, via a current blast but without firing the shielding gas solenoid.  This results in a porosity blob at the arc end.  Hope this helps!