Cebora SYNSTAR 270 T SRS edition Manual De Instrucciones página 24

Adjust the value by turning knob 2 To confirm the se-
lection, press knob 2 or key
Press the DEF key to restore factory settings.
• Bi-level.
Active in synergic MIG/MAG processes only. This type
of welding varies the current intensity between two le-
vels. Before setting bi-level welding, weld a short bead
to determine the wire speed and thus the current to
obtain the optimum bead penetration and width for the
type of weld required.
In this way the wire feed speed (and hence the corre-
sponding current) is determined; the metres per minu-
te that will be set 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%.
Frequency 0.1 Hz
Speed
0.1 m/min
difference
Duty cycle
Arc correction
Bi-level frequency.
The frequency in Hertz is the number of periods per
second. Period means the alternation between high
and low speeds.
The welder uses the low speed, which does not pene-
trate, to switch from one mesh to the next; High speed,
corresponding to maximum current, is the speed that
penetrates and implements the mesh. The operator
will stop to implement the mesh.
Speed difference This is the amplitude of the speed
change in m/min.
The speed change determines whether the m/min is ad-
ded to or subtracted from the reference speed descri-
bed above. All other parameters being equal, when the
number increases the mesh becomes wider and pene-
tration is deeper.
24
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MIN. MAX
5.0 Hz
3.0 m/min
25% 75%
-9.9 9.9
Working cycle. This is two-level time expressed as
a percentage: the highest speed/current time for the
period duration. All other parameters being equal, it
determines the mesh diameter and therefore the pene-
tration.
Arc correction. Sets higher speed/current arc length.
Caution: when properly adjusted, the arc length is the
same for both currents.
Turn knob 2 to select the parameter and confirm the
selection by pressing the knob.
Adjust the value by turning knob 2 To confirm the se-
lection press knob 2 or key
Press the DEF key to restore factory settings.
DEF
1.5 Hz
1.0 m/min
50%
0.0
• Preflow.
Adjustment ranges from 0 to 10 seconds
Turn knob 2 to select the parameter and confirm the
selection by pressing the knob.
Adjust the value by turning knob 2 Confirm the choice
by pressing knob 2 or key
Press the DEF key to restore factory settings.
• Postflow.
Adjustment ranges from 0 to 25 seconds
Turn knob 2 to select the parameter and confirm the
selection by pressing the knob.
Adjust the value by turning knob 2 To confirm the se-
lection press knob 2 or key
Press the DEF key to restore factory settings.
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