Design and function
MMA welding
24
099-002057-EW501
04.03.2019
Item Symbol
Description
0
1
Welding procedure/power-saving mode push-button
--------- Selection of MMA welding procedure/electrode type setting
Signal light
R
RB
illuminated in green = electrode type rutile
Signal light
R
RB
illuminated in red = electrode type rutile basic
Signal light
RC
B
C
illuminated in green = electrode type basic/rutile cellulose
Signal light
RC
B
C
illuminated in red = electrode type cellulose
--------- Selection of TIG welding procedure
Press for 2 s to put the machine into power-saving mode. To reactivate, activate one of
the operating elements
> see 5.6 chapter
.
2
Select welding parameters button
This button is used to select the welding parameters depending on the welding process
and operating mode used.
3
AMP
Main current signal light
Imin to Imax (1 A increments)
4
AMP%
Hotstart current signal light
5
sec
Hotstart time signal light
6
Pulse welding (average value pulses) signal light
> see 5.2.6 chapter
On: ------ Function switched on
Not on: -- Function switched off
Flashing: Parameter selection and frequency setting
:
7
Welding parameter setting rotary transducer
Setting of welding current and other welding parameter and their values
5.2.3
Hotstart
The function hot start ensures a secure igniting of the arc and a sufficient heating to the still cold parent
metal at the beginning of the welding process. The ignition takes place here with increased current (hot
start current) over a certain time (hot start time).
A = Hot start current
B = Hot start time
C = Main current
I =
Current
t =
Time
Figure 5-8
Setting
EXIT
EXIT
Figure 5-9
5.2.4
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.
For parameter setting,
> see 5.2.7 chapter
.
