Fronius MagicWave 2200 Comfort, Operating Instructions Manual

Page: 47 / 216

47
EN
TIG modes
Safety
See the "The Setup menu" section for information on the settings, setting range and units
of measurement of the available welding parameters.
Symbols and
their explanations
WARNING! Operating the equipment incorrectly can cause serious injury and
damage. Do not use the functions described until you have thoroughly read and
understood the following documents:
-
these operating instructions
- all the operating instructions for the system components, especially the safe-
ty rules
Pull back and hold the torch trig-
ger Release the torch trigger Briefly pull back the torch trigger
(< 0.5 s)
Push forward and hold the torch
trigger Release the torch trigger
GPr
Gas pre-flow time
SPt
Spot welding time
I
S
Starting-current phase: the temperature is
raised gently at low welding current, so
that the filler metal can be positioned cor-
rectly
I
E
Final current phase: to prevent any local
overheating of the base material due to
heat build-up towards the end of welding.
This eliminates any risk of weld seam
drop-through.
t
up
Upslope phase: the starting current is con-
tinuously increased until it reaches the
main current (welding current) I
1
t
down
Downslope phase: the welding current is
continuously lowered until it reaches the
end-crater current.
I
1
Main current phase (welding-current
phase): uniform thermal input into the
base material, whose temperature is
raised by the advancing heat
I
2
Reduced current phase: intermediate low-
ering of the welding current in order to pre-
vent any local overheating of the base
material
G-H
Gas post-flow time at maximum welding
current
G-L
Gas post-flow time at minimum welding
current