RHD PULSEMIG 270-T1 Manual Del Usuario página 21

At the end of the weld, a peak of current is used cut the wire and to ensure a clean re-arc. This peak of
current can be a problem on thin metal, in this case the « burn-back » option can be selected to finish
the wire with a more traditional 'ball' and will limit the energy supplied at the end of the weld in order
to preserve the welding bead.
PLS & PIP mode
The icon allows you to enter the welding process menu and modify the settings of each stage (pre-gas, hot-
start, Upslope, downslope, burn-back, post-gas). This menu is only available with the PRO interface. (see « setup
menu», last page).
Pulse (PLS)
Pulse in Pulse (PIP) or double
pulse
PULSEMIG 270-T1 / 270-T2 / 300
There are 3 ways to adjust the welding parameters:
- wire speed:
- metal thickness:
- welding current :
: shows the theoretical welding current
: allows adjustment of the arc length
: The smoothing coil enables the arc strength to be adjusted by
modifying the pulse on standard welding or the pulse frequency on
pulsed welding.
GAS PRE-FLOW : pre-gas time before welding.
CREEP_SPEED : reducing coefficient of the approach speed (Reduce for thick sheets, e.g.
50% . Do not change for thin metal sheets, e.g. : 100%).
Overcurrent, useful with aluminium (eases the arc strike) to preheat the metal piece (>
100%) or useful with steel during the approach phase (< 100%), can also improve the arc's
ignition.
T Hot start : preheating phase time in 2T mode. For the 4T mode, enter another value
than 0 to activate it.
Delta U Hotstart : acts on the arc length during preheating phase.
Upslope time.
Delta U Upslope : acts on the arc length during upslope phase.
Downslope : downslope time.
Delta U Downslope : acts on the arc length during downslope.
I Crater Filler : only active in 4T, can set the current level to prevent pinholes at the end
of the weld.
Delta U Crater filler : acts on the arc length during pinhole filling phase.
Post gas flow duration.
Same settings in Pulse mode (PLS). See previous paragraph for more details. There are extra
phases specific to the PIP (Pulse In Pulse) mode :
I cold : current proportion for the background current phase.
Delta U Cold : acts on the arc length during the cold phase.
THigh : current proportion for the welding current (main/hot phase).
TPulse : phase duration.
Can also adjust the pulse frequency on the welding curve (using the control panel).
EN
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