Fronius AccuPocket 150/400 TIG - TIG Modes; Symbols and Their Explanations; 2-Step Mode

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TIG modes
Symbols and
their explanations
Adjustable parameters:
- GPo: Gas post-flow time
- I-S: Starting-current phase - the temperature is raised gently at low welding current,
so that the filler metal can be positioned correctly
- I-E: Final current phase - to prevent crater cracks or cavitations
- I-1: Main current phase (welding-current phase) - uniform thermal input into the base
material, whose temperature is raised by the continuous heat
- I-2: Reduced current phase - intermediate lowering of the welding current in order to
prevent any local overheating of the base material
Fixed parameters:
- GPr: Gas pre-flow time
- t
up
: UpSlope phase - the welding current is continually increased
Duration = 0.5 seconds
- t
down
: DownSlope phase - the welding current is continually decreased
Duration = 0.5 seconds
- t
S
: Starting current duration
- t
E
: Final current duration
2-step mode See the 2-step mode section on page 51 for details on how to activate 2-step mode.
Place the tungsten electrode onto the workpiece and then pull the torch trigger back
and hold => shielding gas flows
Raise the tungsten electrode => arc ignites
Release torch trigger => end of welding
4-step mode See the 4-step mode section on page 51 for details on how to activate 4-step mode.
Pull back and hold the
torch trigger
Release the torch trigger
forwards
Push forward and hold
the torch trigger
Release the torch trigger
backwards
I
t
I-1
GPo
GPr
1 2 3
tdowntup
1
2
3