Design and function
MMA welding
099-002060-EW501
19.10.2015
31
5.7.2.2 Hotstart current and Hotstart time
The hotstart device uses an increased ignition current to improve arc ignition. The parameters for
the hotstart current and time can be adjusted individually.
When the stick electrode has been struck, the arc ignites at the adjusted hotstart current AMP%
(factory
setting: 120 % of main current)
and welds at this current until the hotstart
time in seconds has elapsed
(factory setting: 1 second). The hotstart current then reduces to the main current set.
Symbol
Meaning
AMP
Main current
AMP%
Hotstart current
sec
Hotstart time
Figure 5-9
Hotstart current
Control element Action
Result
n x
Signal light AMP% lights up
Hotstart current is set as a percentage of the main current
(50 % to 200 %)
Hotstart time
Control element Action
Result
n x
Signal light sec lights up
Hotstart time is set
(0.1 s to 20 s)
After a waiting time of approx 5 s, the display changes back to the main current set and the signal
light AMP comes on.
5.7.2.3 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 5-10
