Tig Operating Modes; General Remarks; Symbols And Their Explanations - Fronius TransTig 2200 Instructions De Service

TIG operating modes

General remarks

Please see the section headed "The Set-up menu" for information on the settings,
setting range and units of measurement of the available parameters.
Symbols and
their explanati-
ons
Symbol
GPr
I
UPS
I
I-2
t
I
G-H/G-L
Warning! Operating the equipment incorrectly can cause serious injury and
damage. Do not use the functions described here until you have read and
completely understood all of the following documents:
- these Operating Instructions
- all "Operating Instructions" for the system components, especially the
"Safety rules"
Pull back and hold the
torch trigger
Push forward and hold the
torch trigger
Explanation
Gas pre-flow time
Starting current phase: The temperature is raised gently, at low welding
S
amperage, so that the filler metal can be positioned correctly
Upslope phase: The starting current is continuously increased until it
reaches the welding amperage
Welding current phase: Uniform thermal input into the base metal, whose
1
temperature is raised by the advancing heat
Reduced current phase: Intermediate lowering of the welding amperage in
order to prevent any local overheating of the base metal
Downslope phase: The welding current is continuously lowered until it
down
reaches the final current.
Final current phase: To prevent any local overheating of the base metal
E
due to heat build-up towards the end of welding. This eliminates any risk of
weld drop-through.
Gas post-flow time
G-H Gas post-flow time at maximum welding amperage
G-L Gas post-flow time at minimum welding amperage
Release the torch trigger
Release the torch trigger
22
Briefly pull back the
torch trigger (< 0.5 s)