Arc-Force Dynamic - Fronius AccuPocket 150/400 TIG Operating Instructions Manual

Examples:
(set welding current = 100 A)
-
-
-
-
I (A)
120A
Example of HotStart function
Arc-force dynam- To obtain optimum welding results, it will sometimes be necessary to adjust the arc-force
ic dynamic.
Setting range: 0 - 100 (corresponds to 0 - 200 A current increase)
Operating principle:
At the moment of droplet transfer or in the event of a short circuit, the amperage is briefly
increased in order to obtain a stable arc.
If the rod electrode threatens to sink into the weld pool, this measure prevents the weld
pool solidifying, as well as preventing a prolonged short-circuit of the arc. This largely pre-
vents the rod electrode from sticking.
Setting the arc-force dynamic:
1
2
Examples:
-
40
NOTE! The maximum HotStart current is limited to 180 A.
100% Starting current = 100 A
80% Starting current = 80 A
135% Starting current = 135 A
200% Starting current = 180 A
90A
0,5 s
Press the setting value button until
the arc-force dynamic indicator lights up
Turn the adjusting dial until the desired correction value is reached
- Power source is ready for welding
NOTE! The maximum arc-force dynamic current is limited to 180 A.

Arc-force dynamic = 0

- arc-force dynamic deactivated
- soft, low-spatter arc
Function deactivated
SoftStart
HotStart
HotStart (maximum current limit reached!)
Features of SoftStart function:
-
Features of HotStart function:
-
-
-
t
1 s 1,5 s
Reduced pore formation with certain
electrode types
Improved ignition properties, even
when using electrodes with poor igniti-
on properties
Better fusion of the base material du-
ring the start-up phase, meaning fewer
cold-shut defects
Largely prevents slag inclusions