REHM FOCUS.ARC P 250, Руководство по эксплуатации

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Function description
39
End-crater current
The end crater current is the welding current to which the welding current is
reduced, within the set slope-down time, when the welding process is ended.
Selecting the appropriate end crater current enables:
•
Prevention of notches and end crater cracks at the end of the weld seam
due to rapid cooling of the weld pool
•
Welding with reduced current at the end of the weld seam at edges or for
heat accumulation
Burning off
Time between switching off the DV motor and switching off the power section.
This parameter changes the burning off (characteristic value) predefined for each
characteristic curve and allows individual adjustment of the length of the free wire
end at the welding end.
A higher value for the burning off provides a shorter free wire end (as the wire
burns back longer) and a lower value provides a longer wire end.
Burning off set too large: Wire end may burn to the contact tip
Gas post flow time
Time between the power section being switched off (end of burning off time) and
the gas valve being switched off. This parameter depends on the selected
characteristic curve, i.e. the gas post flow time can be set individually for each
characteristic curve.
Hotstart dynamic correction (SDI)
Hotstart: Dynamic correction
Dynamic correction I1 (SDI)
Current I1 Dynamic correction
Dynamic correction I2 (SDI)
Current I2 Dynamic correction
Dynamic correction slope-down (SDI)
Dynamic correction during slope-down
Hotstart LBL correction
Arc length correction during Hotstart
LBL correction I1
Arc correction during current I1
LBLcorrection I2
Arc correction during current I2
Slope-down LBL correction
Arc correction during slope-down
Spot time
Welding time in the operating modes spot and interval, if the torch trigger is not
released prematurely.
Pause time
Pause time in interval mode (time between 2 spots).