Design and function
MMA welding
099-002032-EW501
29.04.2010
27
5.6.3
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
t
AMP%
AMP
I
sec
Figure 5-6
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)
NOTE
After a waiting time of approx 5 s, the display changes back to the main current set and
the signal light AMP comes on.
