6
To end stitch welding, depending on the selected mode:
release the torch trigger (2-step mode)
press and release the torch trigger (4-step mode)
7
Wait for the gas post-flow time
8
Raise the welding torch
Notes on stitch welding
With PMC characteristics, the setting of the SFI parameter influences the re-ig-
nition behaviour in interval operation:
SFI = on
Re-ignition takes place with SFI.
SFI = off
Re-ignition takes place by means of touchdown ignition.
For aluminium alloys, SFI is always used for pulse and PMC ignition. SFI ignition
cannot be deactivated.
If the SlagHammer function is stored on the selected characteristic, faster and
more stable SFI ignition takes place in conjunction with a CMT drive unit and a
wire buffer.
88