Fronius MagicWave 3000 User Manual

NOTE!
If there are problems with a rod electrode tending to "stick", set the arc-force
dynamic to a higher value.
10
20
30
40
50
60
U (V)
004003001 200
I (A)
I
1
+ DynamikI
1
- 50 %
(8)
(2)
(1)
(3)
(7)
(c)
(c)
(b)
(a)
(a)
(6)
(5)
(4)
(1) Load line for rod electrode
(2) Load line for rod electrode where arc length is
increased
(3) Load line for rod electrode where arc length is
reduced
(4) Characteristic where "CON" parameter is
selected (constant welding current)
(5) Characteristic where "0.1 - 20" parameter is
selected (drooping characteristic with
adjustable slope)
(6) Characteristic where "P" parameter is selected
(constant welding power)
(7) Example of pre-set arc-force dynamic where
characteristic (5) or (6) is selected
(8) Possible change in the current where charac-
teristic (5) or (6) is selected, as a function of
the welding voltage (arc length)
(a) Operating point where arc length is long
(b) Operating point when welding current IH is set
(c) Operating point where arc length is short
Settings example: I1 = 250 A, arc-force dynamic = 50
The characteristics (4), (5) and (6) shown here apply when using a rod electrode whose
characteristic corresponds to the load line (1) at a given arc length.
Depending on what welding current (I) has been set, the point of intersection (operating
point) of characteristics (4), (5) and (6) will be displaced along the load line (1). The oper-
ating point provides information on the actual welding voltage and the actual welding cur-
rent.
Where the welding current (I
1
) is permanently set, the operating point may migrate along
the characteristics (4), (5) and (6) depending on the welding voltage at that moment in
time. The welding voltage U is dependent upon the arc length.
If the arc length changes, e.g. in accordance with the load line (2), the resulting operating
point will be the point where the corresponding characteristic (4), (5) or (6) intersects with
the load line (2).
Applies to characteristics (5) and (6): Depending upon the welding voltage (arc length),
the welding current (I) will also become either smaller or larger, even though the value
set for I
1
remains the same.
161
EN

Fronius MagicWave 3000 Specifications

General

Brand	Fronius
Model	MagicWave 3000
Category	Portable Generator
Language	English