Design and function
Plasma welding
099-007021-EW501
29.07.2015
37
5.9.6
Select welding current
The user has two options for setting the required welding current:
• Using the sheet metal thickness
• Directly as welding current
The welding current is displayed in the left-
hand display. The “Material thickness” parameter can
be selected in the right-hand display.
Control element Action
Result
Display (right)
X x
Press button until signal light
Material Thickness comes on.
Material thickness in
mm is displayed.
Set welding current or sheet metal thickness.
Welding current and
sheet metal thickness
are displayed
5.9.7
Arc ignition
The pilot arc is activated/deactivated by pressing the "Pilot arc on/off" push-button.
After activating the pilot arc, the pre-set gas pre-flow time runs, the pilot arc current ignites without
workpiece contact between the electrode and nozzle, and the control lamp in the push-button illuminates.
CAUTION
Oxidation of the tungsten electrode!
To protect the tungsten electrode against oxidation carry out the following actions
before switching off the power source:
• Switch off the pilot arc and wait for the gas post flow time to elapse!
• Do not switch off the machine while the arc is still burning!
On delivery, the Hilibo current on the machine is preset to 10A.
The majority of applications are covered by this current setting.
If required, the Hilibo current can be adjusted individually using the PC300.NET software (5A to
20A).
