Fronius TransTig 800 - Page 85

0040 200100 300 I (A)
U (V)
con - 20 A / V
(4)
(5)
(6)
(7) (8)
(1)
(2)
(3)
(1
)
Load line for rod electrode
(2
)
Load line for rod electrode where arc
length is increased
(3
)
Load line for rod electrode where arc
length is reduced
(4
)
Characteristic where "CON" parameter is
selected (constant welding current)
(5
)
Characteristic where "0.1 - 20" parameter
is selected (drooping characteristic with
adjustable slope)
(6
)
Characteristic where "P" parameter is se-
lected (constant welding power)
(7
)
Example of pre-set arc-force dynamic
where characteristic (4) is selected
(8
)
Example of pre-set arc-force dynamic
where characteristic (5) or (6) is selected
Characteristics that can be selected using the ELn function
"con" parameter (constant welding current)
-
If the "con" parameter is set, the welding current will be kept constant, irre-
spective of the welding voltage. This results in a vertical characteristic (4).
-
The "con" parameter is especially suitable for rutile electrodes and basic
electrodes, as well as for arc air gouging.
-
For arc air gouging, set the arc-force dynamic to "100".
Parameter "0.1 - 20" (drooping characteristic with adjustable slope)
-
Parameter "0.1 - 20" is used to set a drooping characteristic (5). The setting
range extends from 0.1 A / V (very steep) to 20 A / V (very flat).
-
Setting a flat characteristic (5) is only advisable for cellulose electrodes.
NOTE!
When setting a flat characteristic (5), set the arc-force dynamic to a higher
value.
"P" parameter (constant welding power)
-
If the "P" parameter is set, the welding power is kept constant, irrespective
of the welding voltage and welding current. This results in a hyperbolic char-
acteristic (6).
-
The "P" parameter is particularly suitable for cellulose electrodes.
NOTE!
If there are problems with a rod electrode tending to "stick", set the arc-force
dynamic to a higher value.
85
EN