Functional characteristics
Voltage reducing device
099-00T500-EW501
2.9.2022
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5.9 Voltage reducing device
The voltage reduction device (VRD) is used to increase safety, especially in dangerous environments
(such as shipbuilding, pipeline construction, mining).
The use of a voltage reduction device is mandatory in some countries and specified in many in-house
safety regulations for welding power sources.
The VRD
> see 4.1.2 chapter
signal light lights up when the voltage reducing device is working properly
and the output voltage has been reduced to the values specified in the relevant standard (technical data).
5.10 Dynamic power adjustment
This requires use of the appropriate mains fuse.
Observe mains fuse specification!
This function enables aligning the machine to the mains connection fusing. This may counteract frequent
tripping of the mains fuse. The maximum input power of the machine is limited with an exemplary value
for the existing mains fuse (infinitely variable).
You can predefine this value in the machine configuration menu
> see 5.11 chapter
using parameter
.
The function automatically adjusts the welding power to an uncritical level for the corresponding mains
fuse.
When using a 25-A mains fuse, a suitable mains plug has to be installed by a qualified electri-
cian.
5.11 Machine configuration menu
Basic machine settings are defined in the machine configuration menu.
5.11.1 Selecting, changing and saving parameters
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Figure 5-54
