Functional characteristics
TIG welding
22
Item No.: 099-002046-EWM01
5.1.3
Arc ignition
NOTE
The HF igntion type is factory set to active.
The ignition types are switched over on the machine control, see also the "Advanced settings"
chapter (TIG welding).
5.1.3.1
HF ignition
Figure 5-1
The arc is started without contact from high-voltage ignition pulses.
a) Position the welding torch in welding position over the workpiece (distance between the electrode tip
and workpiece should be approx. 2-3mm).
b) Press the torch trigger (high voltage ignition pulses ignite the arc).
c) Ignition current flows, and the welding process is continued depending on the operating mode
selected.
End the welding process: Release or press the torch trigger depending on the operating mode
selected.
5.1.3.2
Liftarc ignition
a)
b)
c)
Figure 5-2
The arc is ignited on contact with the workpiece:
a) Carefully place the torch gas nozzle and tungsten electrode tip onto the workpiece and press the torch
trigger (liftarc current flowing, regardless of the main current set).
b) Incline the torch over the torch gas nozzle to produce a gap of approx. 2-3 mm between the electrode
tip and the workpiece. The arc ignites and the welding current is increased, depending on the
operating mode set, to the ignition or main current set.
c) Lift off the torch and swivel to the normal position.
Ending the welding process: Release or press the torch trigger depending on the operating mode
selected.
