Design and function
MMA welding
099-002050-BOC01
30.11.2009
21
5.6.2
Selecting MMA welding
Operating
element
Action Result
MMA
welding process selected
20
40
60
80
100
120
140
160
AMP
Main current setting
5.6.3
Arcforce
During the welding process, arcforce prevents the electrode sticking in the weld pool with increases in
current. This makes it easier to weld large-drop melting electrode types at low current strengths with a
short arc in particular.
5.6.4
Hotstart device
The hotstart device uses an increased ignition current to improve arc ignition. There are presets
for the optimum hotstart current and hotstart time parameters on the machine.
After striking the stick electrode, the arc will ignite with the hotstart current and will then drop to the main
current setting.
5.6.5
Antistick
Anti-stick prevents the electrode from annealing.
If the electrode sticks in spite of the Arcforce device, the
machine automatically switches over to the minimum
current within about 1 second to prevent the electrode
from overheating. Check the welding current setting
and correct according to the welding task!
Figure 5-3
