Fronius TransTig 1600, Инструкция по эксплуатации и список запасных частей

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15
Fig. 16 Functional sequence in special 4-step mode - Variant IV
Fig. 17 Functional sequence in special 4-step mode - Variant V
Variante V (Fig. 17) allows the welder to raise and lower the welding current without an
Up/Down torch.
The longer the torch-trigger rocker switch is pushed forward during welding, the more
the welding current is increased (up to maximum).
After the welder releases the torch trigger, the welding current remains constant. The
longer the torch trigger is pushed forward once again, the further the welding current is
reduced.
Special 4-step
mode - Variant II /
III / IV / V
(continued)
Push trigger forward and hold it
Release the torch trigger
Pull back torch trigger and hold it down
I
S
I
H
I
E
I
t
Pull back torch trigger and hold it down
Release the torch trigger
I
H
Start of cycle
Gas pre-flow time
Current rise via up-
slope
Current drop via
down-slope
Gas post-flow time
End of welding
Crater-fill
current I
E
Arc ignition with start arc I
S
Welding with pre-set
main current I
H
Current rise via up-
slope
Welding with pre-set
main current I
H
Start of cycle
Gas pre-flow time
Pull back torch trigger and hold it down
Release the torch trigger
Release the torch trigger
Arc ignition with start arc I
S
Push trigger forward and hold it
I
S
I
Push trigger forward and hold it
Release the torch trigger
Pull back torch trigger and hold it down
Release the torch trigger
Diagram showing intermediate lowering
Current rise via up-slope
Current drop via
down-slope
Gas post-flow time
End of welding
Crater-fill current I
E
Welding with pre-set
main current I
H
I
H
I
E
t
Current-rise while trigger is
pushed forward
Current-drop while trigger is
pushed forward
Welding with decreased
main current I
H
Welding with increased
main current I
H