Program Sequence - EWM M1.83-A-1 Operating Instructions Manual

Functional characteristics
MIG/MAG welding
Interval
Start
• Press and hold torch trigger.
• Shielding gas is expelled (gas pre-flows).
Sequence
• Arc ignites after the wire electrode makes contact with the workpiece at creep speed.
• Welding current flows.
• Wire feed speed increases to the set nominal value.
• The wire feed stops after the spot time elapses.
• Arc is extinguished after the wire burn-back time elapses.
• The process is repeated when the pause time is over.
End
• Release torch trigger, wire feed stops, arc is extinguished, gas post-flow time elapses.
If the pause time is less than 3 s, wire creep only takes place in the first spot phase.
When the torch trigger is released, the welding process is also ended even before the spot time elapses.
5.2.6

Program sequence

Certain materials require additional programs for reliable, high-quality welding. In addition to the main pro-
gram P (continuous welding), a start program P
A
and an end program P
By entering a start time
latched special) are activated. Corresponding slope times can also be defined.
The relevant parameters are set in the Expert menu > see 5.2.7 chapter.
Display
P
START
26
(prevention of end-craters through targeted heat reduction) are used.
END
and / or end current time
Setting/selection
Start program
Figure 5-12
(prevention of cold welds at the start of the seam)
START
, the special operating modes (non-latched or
Figure 5-13
099-M183xA-EW501
15.7.2022