04/2014
Operating Manual E4-2800/4200/5200 / M4-3000/4000/5500
Page 23
Description of advanced parameters:
LED Function
Unit
Pre-gas time
Preflow of welding gas before start of welding in order to avoid shortage of shielding gas
at welding start and to facilitate safe ignition.
Sec
Wire creep-in speed
Reduced speed of the wire electrode until the initial contact with the workpiece, in order to
facilitate ignition.
% of factory
setting
Start energy (ignition power, „Hot Start“)
Duration of start energy
Anfangsschweißenergie prozentual von der gewählten Hauptenergie (=100%), um
Schweißfehler am Nahtbeginn zu vermeiden.
% of E1
sec
Up-Slope
Period during which ignition energy is ramped up to the main power.
sec
Welding energy E1 (=main power)
Arc length correction or voltage value for E1
Powerpuls PPS on/off
m/min
% or V
On / Off
Welding energy E2
available when text display value is > 0,0 m/min in
Special 4-cycle
mode
Additional energy value that can be selected by a short tap on the torch trigger.
Arc length correction or voltage value for E2
m/min
% or V
Welding energy E3
available when text display value is > 0,0 m/min in
Special 4-cycle
mode
Additional energy value that can be selected by a short tap on the torch trigger.
Arc length correction or voltage value for E3
m/min
% or V
Down-Slope
Period during which main power is ramped down to the end crater energy.
sec
End crater energy („crater filling“)
Duration of the end crater energy
Energy at weld end, as a percentage of the selected main power (=100%),
in order to fill the end crater.
% von E1
sec
Burn-back time
Adjustable time for wire burn-back at the end of welding, in order to keep the wire end
pointed and to avoid sticking of the wire rod in the melt.
% of factory
setting
Post-gas time
Postflow of the shielding gas after the end of welding, in order to protect the wire rod from
oxidation and to facilitate re-ignition.
sec
Depending on the selected welding process and operating mode , functions are
displayed or skipped.
During the welding process, the LED indicates the current machine function in use.
Fig. 6-9
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