GYS NEOFEED 4W Mode D'emploi page 34

Pre-gas
Approach speed
Hot Start
Crater Filler
Post gaz
Access to some welding parameters depends on the selected display mode: Settings/User Level: Easy, Expert, Advanced.
• GMAW/MIG-MAG Pulse
The principle is to create a high amperage pulse welding current in order for the wire to melt into thin drops before it comes in contact with the metal
plate. The frequency of drops and the diffused energy are perfectly controlled. This helps to control the temperature of the weld pool, improve the
appearance of the beads while eliminating projections and improving penetration.
Pulse is beneficial when light alloys and stainless steels. For carbon steels, pulse will only be justified when working with additional constraint such as
high penetration or finish removal. In addition, the pulse feature makes it easier to weld in position.
• Arc Module (ModulArc) Pulse
This Pulse welding mode is suitable for applications in the vertical up position (PF). The pulse mode keeps the weld pool cold and eases the transfer
of matter. Without the pulse mode, vertical-up welding requires a difficult «Christmas tree» shape triangular movement. Thanks to the Pulse welding
mode, it is no longer necessary to make this movement, depending on the thickness of your part, a straight upward movement may be sufficient. If
however you wish to widen your weld pool, a simple lateral movement is enough (normal welding movement). In this case the pulse current frequency
can be adjusted on the display. This process allows greater control during vertical-up welding.
Settings Designation
Thickness
Speed
Current
Arc length
Self
Pre-gas
Approach speed
Soft Start
Hot Start
Uplsope
Cold current/Back-
ground current
Pulse frequency
Duty cycle ratio
Downslope
Crater filler
Post gaz
34
NEOFEED 4W
0 - 25 secs. Torch purge time and to protect the area with gas before ignition
Progressive wire speed. Before the arcing, the wire arrives slowly to create the first
50 - 200 %
contact without causing a jolt.
The Hot Start is an overcurrent during generated during the arcing phase to prevent
50 - 200 %
the wire from sticking. It is adjustable in intensity (% of welding current) and time
0 - 5 secs.
(seconds).
This current treshold when stopped is a phase after the current downslope.
50 - 100 %
It is adjustable in intensity (% of welding current) and time (seconds).
Duration for which gas is released after the arc has stopped. It protects the weld pool
0 - 25 secs.
and the electrode against oxidisation when the metal is cooling down.
Adjustable
settings
The synergy allows for fully automatic settings. Adjusting the thickness
0.1 - 5.5 mm
automatically sets the right voltage and wire speed.
1 - 22m/min Quantity of filler metal deposited and indirectly the welding intensity.
10 - Imax Welding current.
Used to adjust the distance between the end of the wire and the weld (voltage adjust-
-6 > +6
ment).
Smoothes more or less the welding current. To be adjusted according to the welding
-4 > +4
position.
0 - 25 secs. Torch purge time and to protect the area with gas before ignition
Progressive wire speed. Before the arcing, the wire arrives slowly to create the first
50 - 200 %
contact without causing a jolt.
Progressive current rise. In order to avoid abrupt starts or jolts, the current is controlled
0 - 2 secs.
between the first contact and the welding.
The Hot Start is an overcurrent during generated during the arcing phase to prevent
50 - 200 %
the wire from sticking. It is adjustable in intensity (% of welding current) and time
0 - 5 secs.
(seconds).
0 - 2 secs. Up slope current.
50 - 100 % Second welding current known as «cold» welding current
0.1 - 2 Hz Pulse frequency
20 - 80 % In pulsed mode, sets the hot current time in relation to the cold current time.
0 - 2 secs. Down slope current.
This current treshold when stopped is a phase after the current downslope.
50 - 100 %
It is adjustable in intensity (% of welding current) and time (seconds).
Duration for which gas is released after the arc has stopped. It protects the weld pool
0 - 25 secs.
and the electrode against oxidisation when the metal is cooling down.
Description & advice
EN