Design and function
Voltage reducing device
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14.10.2022
5.6
Voltage reducing device
Only machine variants with the (VRD/SVRD/AUS/RU) code are equipped with a voltage reduction device
(VRD). The VRD is used for increased safety, especially in hazardous environments such as shipbuilding,
pipe construction or mining.
A VRD is mandatory in some countries and required by many on-site safety instructions for power
sources.
The VRD
> see 4.2 chapter
signal light is illuminated when the voltage reduction device is operating wit-
hout f ault and the output voltage is reduced to a value specified in the relevant standard (see technical
data
> see 8 chapter
).
5.7
Machine configuration menu
Figure 5-19
5.7.1
Arcforce correction (welding characteristics)
Example:
You are using a rutile/basic electrode type and set "Rutilbas" accordingly on the machine control. When
welding the electrode type, you specify a hard or aggressive arc. You should now change the arcforce
setting in the direction of "less arcforce
– softer arc" until the required result is achieved.
Display
Setting/selection
Arcforce correction > see 5.2.2.1 chapter
• Increase value > harder arc
• Decrease value > softer arc
5.7.2
Arc length restriction (USP)
The arc length restriction
function stops the welding process when an excessive arc voltage is detec-
ted (unusually high gap between electrode and workpiece). The setting is saved separately for each
welding process.
The arc length restriction cannot be used for cel characteristics (if available).
Display
Setting/selection
Arc length restriction > see 5.7.2 chapter
-------- Function switched on
------- Function switched off
