Selecting Mma Welding; Hotstart Current And Hotstart Time - EWM Pico 180 Operating Instructions Manual

Design and function
MMA welding
5.6.2

Selecting MMA welding

Control element Action
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.
I
AMP%
sec
Hotstart current
Control element Action
Hotstart time
Control element Action
After a waiting time of approx 5 seconds, the display changes back to the main current
set and the signal light sec comes on.
22
Result
MMA welding signal light
x x
Main current setting
AMP
Result
Signal light AMP% lights up
n x
Hotstart current is set as a percentage of the main current
(50 % to 200 %)
Result
Signal light sec lights up
n x
Hotstart time is set
(0.1 s to 20 s)
lights up
Figure 5-4
NOTE
Symbol Meaning
AMP Main current
AMP% Hotstart
current
sec Hotstart time
t
099-002003-EW501
19.09.2011