Toparc RC-HD1 Manuel D'installation page 19

Pulsed 4T process :
T hotstart
Dstart
4T
OFF
Soft-start
In 4T pulsed mode, the trigger manages pre gas if there is no Hot-Start. Otherwise , it manages Hotstart and downslope. When stopping, it manages
the black-out (crater filling).
For further details, check the wire feeder's manual.
TROUBLESHOOTING
SYMPTOMS
The flow of the welding wire is not constant.
The wire feeder 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.
T upslope
POSSIBLE CAUSES
Sparks block the hole.
The wire slips on the drive rolls.
One of the drive rolls spins and the wire slips
The torch cable is tangled up.
Reel brake or roller too tighten.
Liner/wire guide dirty or damaged.
Drive roll axis pin is missing
Reel brake is too tightened.
Bad connection of the mains plug.
Bad earth connection.
No power.
Wire guide/torch liner is crushed.
Wire is blocked in the torch.
No capillary tube.
Wire speed is too high.
The gas flow is insufficient.
Gas bottle empty.
Gas quality unsatisfactory.
Air circulation or wind influence.
Gas nozzle is too drity.
Bad wire quality.
Bad quality of the welding surface (rust, etc ....)
The gas is not connected
RC-HD1
I
T downslope
I Blackout
Gas post-Flow
T burn-back
4T
T crater Filler
I crater Filler
SOLUTIONS
Clean the contact tube or change it and apply anti-
spatter spray.
Apply anti-spatter spray.
Check that the the drive rolls are probably tightened.
The torch cable must be as straight as possible.
Release the brake and rollers
Clean or replace.
Reposition the pin
Release the brake.
Check plug connections and check that the each of
the 3 phases is connected and power supplied.
Check the earth cable (connections and clamp).
Check the torch trigger
Check the torch liner/body.
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 draughts, protect the welding zone.
Clean the gas nozzle or replace it.
Use the right welding wire for MIG/MAG welding.
Clean the workpiece before welding.
Check that the gas is connected to the machine
input.
EN
19