Operation Manual

NEOPULSE 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.

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 cur-

rent can be a problem on thin metal, in this case the « burn-back » option can be selected to nish 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)

GAS PRE-FLOW : pre-gas time before welding.

CREEP_SPEED : reducing coefcient 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 ller : acts on the arc length during pinhole lling phase.

Post gas ow duration.

Pulse in Pulse (PIP) or double

pulse

Same settings in Pulse mode (PLS). See previous paragraph for more details. There are extra

phases specic 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).