Design and function
Voltage reducing device
099-002032-EW501
15.10.2018
31
5.4.3
Dirt filter
These accessory components can be retrofitted as an option
> see 9 chapter
.
The duty cycle of the welding machine decreases as an effect of the reduced cooling air volume. The dirt
filter must be remove at regular intervals and cleaned by blowing out with compressed air (depending on
the level of soiling).
Figure 5-18
Item Symbol
Description
0
1
Cooling air inlet
2
Dirt filter with fixing plate
3
4 fixing screws for dirt filter
• Fix dirt filter with 4 fixing screws on the front of the casing (cooling air inlet) of the welding machine.
5.5
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
without fault and the output voltage is reduced to a value specified in the relevant standard (see technical
data
> see 8 chapter
).
5.6
Machine configuration menu
Figure 5-19
