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DOUBLE LEVEL mode
To choose the
DOUBLE LEVEL
mode, select pushbutton
DF
:
Press pushbutton (
DF
) on the display and it
becomes possible to activate the function using
the
ON
pushbutton, which turns orange when
pressed.
Active in synergic MIG/MAG processes only.
This mode involves changing wire speed (and
consequently also current intensity) between two
levels. Before setting double level welding, make a
short bead to determine the wire speed and hence
the current to obtain the optimum bead penetration
and width for the type of weld to be performed. In
this way the wire feed speed is determined; the set
SPEED DIFFERENCE parameter will be added to
or subtracted from this value. Before start working
you should not forget that for a correct bead, the
minimum overlap between one mesh and another
must be 50%.
MIN.
MAX.
DEF.
Double level frequency
. Frequency is the number
of periods per second expressed in Hz. Period
means the duration of a complete speed high-low
variation cycle.
Duty cycle�
Duration of the high speed/current in
relation to the overall period duration.
Speed difference
. Amplitude of the speed change
in m/min in relation to the reference speed.
Arc correction
. Sets a higher speed/current arc
length.
Down/Up Slope
. The up or down ramp set for the
transition from the minimum motor speed value to
the maximum value and vice versa.
DEFAULT
to reset all the parameters to the factory
settings.
FREQUENCY
0.1 Hz
10 Hz
1.5 Hz
DUTY CYCLE
25%
75%
50%
SPEED DIFFERENCE
0.1 m/min
3.0 m/min 1.0 m/min
ARC CORRECTION
-9.9
+9.9
0.0
UP SLOPE
0.1
10.0
0.8
DOWN SLOPE
0.1
10.0
0.3
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Setting welding parameters
DG/DH quick pushbuttons for selecting welding parameters
Adjusting inductance
. This can be selected using pushbutton
DG
. This function
can be used to switch between a narrow, hard arc with deep penetration (negative
values) and a broad, smooth arc (positive values). The adjustment can range
b/- 9.9, 0 is the factory setting.
Adjusting arc length
. This can be selected using pushbutton
DH
. If necessary, arc
length (welding voltage) can be corrected by +/- 9.9 V for the specifi c welding job,
0 is the factory setting.
