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When the 4T or WP Switch is in use, pressing the trigger during the welding (in the case of WP Switch, pressing > 0.5 s)
launches the Crater fill sequence. The system stays on the Crater fill finishing level until the trigger is released. Releasing
the trigger immediately finishes the Crater fill sequence.
Figure: 4T/WP Switch Crater Fill
1.
Trigger is pressed.
2.
Trigger is released.
3.
Trigger is pressed.
4.
Trigger is released.
To adjust the Creater Fill parameters, with Control Pad, go to Settings > Start and stop logic > Crater fill. When you
select ON, the options for adjusting Time, Start Level and End level appear on the screen.
•
Time: For 2T, this defines the period of time that the Crater Fill sequence takes. For 4T/WP Switch, this defines the
period of time it takes to move from the start level to the finishing level.
•
Start level: the level where the Crater Fill is launched.
•
Stop level: the level on which the Crater Fill is finished.
When the 4T Timer is in use, pressing the trigger (in the case of WP Switch, > 0.5 s) launches the Crater Fill sequence,
and the sequence lasts at least for the period of time defined for the 4T Timer, even if the trigger is released before that
time has passed.
Pregas
The Pregas function ensures that the work piece is protected by shielding gas at the moment of the arc ignition so that
the molten metal does not come into contact with air. This is essential with materials that require a good gas shield, like
stainless steels, aluminium and titanium.
When the 2T trigger logic is in use, the Pregas lasts for the defined period of time. When the 4T or WP Switch trigger
logic is in use, the Pregas lasts until the trigger is released.
To adjust the pregas time, in Control Pad, go to Settings > Start and stop logic > Pregas time.
Postgas
The Postgas functions ensures that the work piece is protected by gas after the arc is switched off so that the molten
metal does not come into contact with air. The workpiece is protected by shielding gas until it has sufficiently cooled
down. This is especially useful with materials that require excellent gas shield, like stainless steels and titanium.
When the 2T trigger logic is in use, the Postgas lasts for the predefined period of time. When the 4T or WP Switch trigger
logic is in use, the Postgas lasts until the trigger is released; however, at least for the predefined period of time.
To adjust the Postgas function, go to Settings > Start and stop > Postgas. Select Set time > Postgas time to define
the period of time that the Postgas lasts, or Set to default to select the pre-set time.
Creep start
© Kemppi
103
X8 MIG Welder
Operating manual - EN
1902370 / 2324
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