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LORCH
12.2
TIG
welding
proces
~
Switch on the
system
:>
Switch on
the
system
at the
main
switch 6.
:>
Keep pressing
button
44 until the desired MIG
oper-
ating function
is
selected
.
./
The TIG
symbol
(LED
41) lights up.
:>
Use
control knob
48
to
set
the desired
welding
cur-
rent.
TIG
welding current
Range
Factory
setting
Welding current
11
10
to
350A
100
Tab.
3:
TIG welding current
Arc
ignition
:>
Open the valve
19
on
the
TIG
welding
torch.
CD
(
~
(
p
'//////////////
'///
///
/ /
//////
:>
<D
Briefly touch the
workpiece
with the
tip
of the
elec-
trode
at
the
point
t
o be
welded.
:>
@
Lift
the
electrode a
little.
./ The arc
burns
between the workpiece and
the
elec-
trode.
Ups lope
O
A
short-circuit
current
of
60
A
is
used
fo
r
igniting
during
the TIG
welding
process.
The upslope takes
place
with
115
Ns
until the set welding
current
is
reached.
Guideline values for the current intensity and
the gas quantity
Tungsten
electrode
Current in-
Gas quantity
diameter [mm]
tensity [A]
[Vmin]
1.0
3
..
.40
4
1.6
15
...
130
5 ... 6
2.0
45 ...
180
5
...
8
2.4
70
...
240
6
...
10
3.2
140
...
320
6
...
12
4.0
220
..
.450
6
...
14
-12
-
Start-up
12.3
MIG welding
process
(MIG/MAG}
_ _
Switch on the system
:>
Switch
on the
system
at
the main
switch
6.
Selecting the welding process
:>
Keep
pressing button
44
until the
desired MIX or C0
2
operating function is
selected.
./
The
MIX or C0
2
symbol (LED 39
or 40)
lights
up.
Selecting
the
wire feed case
CD
The type
of connected wire
feed
case can
be
selected at the welding
unit.
0
If you are
using
a
wire
feed case
with
its
own
control
system you
must
set
the
case type
lo
external (EXI).
O
If
you
are using
a wire feed case without
its own
con-
trol
system (with 6 or 7
pole
connection plug)
you
must
set
the
case
type
to internal (lnt).
:>
Press the
operating button
48
for
2
sees.
to
call
up
the
secondary
parameters.
:>
Select the case type secondary
parameter (Code
"Fdt") by turning
the
control
knob
48
.
./
The parameter code and the corresponding setting
are
displayed alternately
in the 7-Segment
display
35.
:>
Confirm
the
secondary
parameter by pressing
the
control
knob
48
.
:>
Set
the desired
case type by
rotating the
control
knob
48
.
./
"lnt" or
"EXt"
is
displayed in
the
7
segment
display 35.
:>
Confirm the setting by
pressing
the control
knob
48.
:>
Exit the
secondary
parameters
by pushing
the
oper-
ating
button
48 for 2
sees.,
or
by pressing the selec-
tion button 44.
Operating mode EXt case type
O Only
the 2 cycle operating
mode
is possible
in
the
case type
E.Xt operating mode.
:>
Set the
welding voltage
by
rotating
the
control knob
48.
:>
Press
the
operating button 48
to
display
the welding
current.
O
The
welding current
is
only
displayed
during
welding.
Operating mode
lnt
case type
:>
Keep
pushing the
button 47
until the desired operat-
ing
mode
2 cycle or
4 cycle and/or
crater
filling
func-
tion
is selected .
./
The
LEDs
50
or
51
and/or 49
light
up.
:>
Set
the
desired welding voltage
by rotating the knob
on
the feed
case.
:>
Set the
desired
wire
feed speed by
rotating the
knob
on
the
feed case.
10.13
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