Fronius TransTig 1750 Puls, Operating Instructions Manual

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47
EN
4-step mode - Welding start-up with starting current I
S
: pull back and hold the torch trigger
- Welding with main current I
1
: release the torch trigger
- Lowering to end current I
E
: pull back and hold the torch trigger
- End of welding: release the torch trigger
IMPORTANT! For 4-step mode, the SFS setup parameter must be set to "OFF".
*) Intermediate lowering
Intermediate lowering during the main current phase causes the welding current to be re-
duced to the specified reduced current I
2
.
- To activate intermediate lowering, push forward and hold the torch trigger
- To revert to the main current, release the torch trigger
Special 4-step:
variant 1 Variant 1 of the special 4-step mode is activated when the SFS setup parameter is set to
"1".
Briefly pull back the torch trigger to start intermediate lowering to the specified reduced cur-
rent I
2
. When the torch trigger is briefly pulled back a second time, the main current I
1
is
restored.
I
t
I
1
GPr t
up
t
down
SPt
G-L
G-H
I
S
t
E
I
E
t
S
I
t
I
1
GPr
I
S
t
up
t
down
I
E
I
2
G-L
G-H
I
1
*)
t
E
t
S