Design and function
TIG welding
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099-000120-EW501
26.07.2011
5.6.10.4
Non-latched operation, version C
Figure 5-13
1st cycle
• Press torch trigger 1, the gas pre-flow time elapses.
• HF ignition pulses jump from the electrode to the workpiece, the arc ignites.
• Welding current flows and immediately adopts the ignition current value set (search arc at minimum
setting). HF is switched off.
2nd cycle
• Release torch trigger 1.
• The welding current increases in the set up-slope time to the main current AMP.
NOTE
Pressing torch trigger 1 starts the slope (tS1) from main current AMP to secondary
current AMP%. Releasing the torch trigger starts the slope (tS2) from the secondary
current AMP% back to the main current AMP. This process can be repeated as often as
required.
The welding process is ended by the arc interruption in the secondary current
(removing the torch from the workpiece until the arc is extinguished).
The slope times can be set (see chapter "Advanced settings", section "Setting slope
times for secondary current AMP% or pulse edges".
This operating mode needs to be activated (see chapter "Advanced settings" in the "TIG
non-latched operating mode, C version") section.
