13
ADVANCED SETTING cont'd
recommended to obtain the optimal penetration and
width of the bead for the joint to be made. This type of
welding varies the intensity between two levels.
Before setting the double level welding, it is necessary
to make a short bead to determine the wire speed and
the current to obtain the penetration and the bead
width closest to the type of welding to be made.
The wire feed speed is thus determined (and the
corresponding current); the inch/meters per minute that
will be set will be alternatively added to and subtracted
from this value.
Before start working you should not forget that for a
correct bead, the minimum overlapping between two
“meshes”must be 50%.
Activate the function.
Turn the knob to select the frequency on the display.
Press the knob to change its value (adjustment from
0.5 to 5 Hz).
Turn the knob to select the difference in inch/min of the
double pulse on the display. Press the knob to change
its value (adjustment from 3 to 196 in / min).
Turn the knob to select the double pulse duty cycle
on the display. Press the knob to change its value
(adjustment from 25 to 75%) (default 50%).
Turn the knob to select the arc length of the major
current. Press the knob to change the adjustment
value from -9.9 to 9.9 V (default 0).
•
Inductance
Adjustment can vary from -9.9 to +9.9. Factory setting
is zero. If the figure is negative, the impedance drops
and the arc becomes harder, while if it increases, the
arc is softer.
To access this function, simply highlight it using the
knob
B
and press it for less than 2 seconds. The
display screen
A
shows the adjustment bar. The
figure can be changed and confirmed by pressing the
knob
B
for less than 2 seconds.
•
AUTO burnback
The adjustment can vary from -9.9 to +9.9. Its purpose
is to adjust the length of the wire coming out of the gas
nozzle after welding. A positive figure corresponds to
greater wire burning.
Default is Auto (preset function). To access this
function, simply highlight it using the knob
B
and
press it for less than 2 seconds. The display screen
A
shows the adjustment bar. The figure can be changed
and confirmed by pressing the knob
B
for less than
2 seconds.
•
Soft Start AUTO
Adjustment can vary from 0 to 100%. This is the wire
speed expressed in percentage of the speed set
for welding, before the wire touches the piece to be
welded.
This adjustment is important to always obtain good
starts.
Default is Auto (preset function).
To access this function, simply highlight it using the
knob
B
and press it for less than 2 seconds. The
display screen
A
shows the adjustment bar. The
figure can be changed and confirmed by pressing the
knob
B
for less than 2 seconds.
Содержание MIG200i
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