Kemppi Adaptive 180 - Manual (Page 16)

EN
display during welding. The last used values remain on the display until
welding is restarted or settings are changed.
When adjusting the arc length, the voltage display shows a comparative scale
(-9…0…9) which will disappear from the display after some time once the
adjustment is made.
2.6.2 welding power adjustment in automatic mode
Adjusting the welding power according to sheet thickness affects
simultaneously both wire feed speed and amount of current lead to the wire.
This is a good starting point for welding in different operating situations.
However, connection type and root opening may influence the amount of
welding power needed.
Select the correct parameter with the welding power control according
to the welded fillet weld’s sheet thickness. If the fillet weld’s sheets are of
different thickness, use their average as a default parameter.
Sheet thickness display has been given in millimetres and it is based on ,
with steel and stainless steel wires, 0.8 mm wire diameter. When using a 0.6
mm wire, set the welding power control slightly higher than the used sheet
thickness and correspondingly slightly lower with 0.9–1.0 mm wires. With
aluminium wires, the welding power adjustment is based on 1.0 mm wire
diameter.
NOTE! When welding for the first time, we recommend that you set the arc
length trimmer to 0.
2.6.3 arc length trimmer in automatic mode
The arc length trimmer adjusts the length of the arc shorter or longer and
affects the welding temperature. A shorter arc is colder and a longer one
hotter. The arc length trimmer also affects the arc’s welding properties and
spatters with different combinations of filler wire diameters and shielding
gases. The trimmer range is -9...0...9: negative values shorten and positive
values lenghten the arc. The trimmer is preset at 0 which is, in most cases, a
suitable basic setting.
If the weld is too convex, the arc is too short or cold. Then adjust the arc
longer or hotter by turning the control clockwise.
If, on the other hand, you want to weld with a colder arc to prevent for
example the parent material from burning through, adjust the arc shorter by
turning the control counter clockwise. You can also adjust the welding power,
if need be.
When adjusting the arc length, the weld on the arc trimmer chart on the
display correspondingly changes more concave or convex.
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