Fronius TransTig 1600, Operating Instructions And Spare Parts List

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13
- Enables the 4-step mode to be activated from TIG torch triggers without the double-
pushbutton function
- ZIntermediate lowering to the reduced current I
3
(for details of how to set this, see
"Working with the program-levels")
-
Welding current can be lowered from the main current to the reduced current I
3
and back, without interrupting the welding sequence
- In the "PRESETTINGS LEVEL___" program level (see "Working with the program-
levels"), Parameter I3, the reduced current I3 can be set as a percentage of the
main current I
H
- In the "PRESETTINGS LEVEL___" (see "Working with the program-levels"), TIG
parameters, SFS must be set to 1
Fig. 13 Functional sequence in special 4-step mode - Variant I
briefly press the torch trigger (forward)
briefly press the torch trigger (forward)
Release the torch trigger
Pull back torch trigger and hold it down
I
S
I
H
I
3
I
t
Pull back torch trigger and hold it down
Release the torch trigger
I
E
I
H
Start of cycle
Gas pre-flow time
Current rise via up-slope
Gas post-flow time
End of welding
Welding with pre-set
lowering current I
3
(Setup)
Arc ignition with start arc I
S
Welding with pre-set
main current I
H
Current drop via
down-slope
Welding with pre-set
main current I
H
Crater-fill current I
E
Diagram showing intermediate lowering
Special 4-step
mode - Variant I