4T Pulse process :
T hotstart
Dstart
4T
OFF
Soft-start
En 4T pulse, la gâchette gère le Pré-gaz s'il n'y a pas de HotStart. Sinon elle permet de gérer la durée du HotStart, s'il est validé.v During the shu-
tdown, it allows to manage the Crater filler, if it is validated or the Post gas if there is no Crater filler.
TROUBLESHOOTING, CAUSES, SOLUTIONS
SYMPTOMS
The wire feed is not constant.
The wire feed motor does not work.
Bad wire feeding.
No current or bad welding current.
The wire forms a bottleneck after the rollers.
The weld bead is porous.
44
PULSEMIG 220 C / 220 C XL
T upslope
Debris are blocking the hole.
The wire is spinning on the rollers.
One of the rollers is spinning.
The torch cable is entangled.
The brake on the reel or roller is too tight.
The wire liner is dirty or damaged.
The pin of the roller axis is missing
The brake of the reel is too tight.
Bad connection at the mains plug.
Bad earth connection.
No power.
The wire liner is crushed.
The wire is blocked in the torch.
No capillary tube.
Wire speed is too high.
The gas flow is insufficient.
Gas cylinder empty.
Unsatisfactory gas quality.
Air circulation or wind influence.
Gas nozzle is too dirty.
Bad wire quality.
Bad quality of the surface to weld (rust, etc ...)
The gas is not connected
I
POSSIBLE CAUSES
T downslope
I Blackout
Gas post-Flow
T burn-back
4T
T crater Filler
I crater Filler
SOLUTIONS
Clean or replace the contact tip and apply an anti-
sticking solution.
Apply an anti-sticking solution.
Check the tightening of the roller screw.
The torch cable must be as straight as possible.
Loosen the brake and rollers
Clean or replace.
Reposition the pin
Release the brake.
See the plug connection and check if the plug is
properly powered.
Check the earth cable (connection and clamp).
Check the torch trigger
Check the liner and the torch.
Replace or clean.
Check the presence of the capillary tube.
Reduce the wire speed.
Setting range from 15 to 20 L/min.
Clean the metal.
Replace it.
Replace it.
Avoid air draughts, protect the welding area.
Clean the gas nozzle or replace it.
Use a wire suitable for MIG/MAG welding.
Clean the workpiece before welding
Check that the gas is connected to the machine
input.
EN