Functional characteristics
MMA welding
Item No.: 099-002046-EWM01
31
5.2
MMA welding
5.2.1
Selection and adjustment
Operating
element
Action Result
Select welding process
MMA welding
Set welding current
NOTE
This completes the basic settings and the welding work can now start.
The hotstart current, hotstart time and arcforcing are factory-set to the optimum preset values
for common applications. To change these parameters, see the "Advanced settings" chapter.
5.2.2
Hotstart
The hotstart device improves the ignition of the stick electrodes using an increased hotstart current.
After striking the stick electrode, the arc ignites with hotstart current (iht) for the preset hotstart time (tht)
and then reduces to the main current (AMP).
The parameter values for hotstart current and time can be optimised for the electrode types being used.
NOTE
For parameter setting, see “Advanced settings” chapter.
Figure 5-8
5.2.3
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.
NOTE
For parameter setting, see “Advanced settings” chapter.
