8. Various settings
WMD078TE0PAA07
112
8.6.3 About FILL FLOW function
(Group 3 and submenu 12)
1) Outline
It enables to operate the gas solenoid valve of
the wire feeder for a preset period of time, not
while torch switch is in ON state.
2) Advantages
•
It fills the shield gas near the weld start point
(for groove welding etc.)
•
It stabilizes the mixed state of the shield gas.
•
It can drain air from the torch.
3) Settings
The fill flow time can be changed. For details, see
section “
” on page
104.
4) Operation
WARNING
Provide sufficient ventilation or wear
breathing equipment. Toxic fumes
and gases generated during welding
can be hazardous.
Fill flow function enables continuous
gas supply.
①
Use fill flow alone
Turn ON-and-OFF the torch
switch at a quicker pace
than pre-flow time.
<Note> The following shows sequences when the ON-and-OFF of the torch switch takes longer
than the preset pre-flow time. The sequence varies with arc generation (generates or not).
<No fill flow - standard welding sequence> <Fill flow alone>
Torch switch
Gas valve
Output
Fill flow
ON OFF
Arc generation
Preset
Preset
Torch switch
Gas valve
Output
ON
OFF
Fill flow
No
Torch switch
Gas valve
Output
ON
OFF
arc generation
pre-flow time
post-flow time
Preset
pre-flow time
