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5 OPERATION
Al / Mg Aluminium
Diameter
150 / 3.8
3/64"
22 V 100 A
1/16"
5.3.4
MobileFeed 301 with CC Power Sources
1.
Select the weld current/arc voltage needed for the wire type and diameter to be
welded, see section "Weld data table" in this chapter.
2.
Set the power supply current with the knob for setting the current on the front panel of
the power source.
3.
Set the arc voltage, value taken from the weld data table, with the knob for setting the
voltage on the wire feeder.
4.
Set the wire feed speed, value taken from the weld data table, with the knob for setting
the wire feed speed on the wire feeder.
5.
Strike an arc and adjust it to the desired wire speed with the knob for setting the wire
feed speed.
5.3.5
MobileFeed 301 with CV Power Sources
1.
Select the arc voltage/weld current needed for the wire type and diameter to be
welded, see section "Weld data table" in this chapter.
2.
Set the power supply voltage with the knob for setting the voltage on the power source
or use the optional remote voltage control in the wire feeder.
3.
Read the wire feed speed at the top of the column in the "Weld data table" for the
chosen wire type, diameter and arc voltage/weld current.
4.
Use the "Weld data table" to determine the position of the knob for setting the wire
feed speed on the wire feeder.
5.
Strike an arc and adjust the arc length as needed with the knob for setting the wire
feed speed.
NOTE!
It is NOT RECOMMENDED to use the CV switch setting when using a CC power
source. Extreme wire feed speed sensitivity exists that makes it difficult to set
stable welding condition. The arc stability is very dependant on maintaining
constant "Tip To Work" (TTW) distance which is almost impossible to control
when welding manually. CV setting is only recommended for use with CV power
sources.
Typical welding voltages for 5000 Aluminum are between 21 and 25 volts which
limits the wire feed speed of the MobileFeed especially if trying to weld with 035"
diameter 5356 alloy. Welding with wire diameters ≤3/64" and/or below 22 arc
volts could cause problems with limited wire feed speed and the inability to
achieve a good welding condition.
NOTE!
On many CV power sources the actual welding arc voltage is less than the "Open
Circuit Voltage" (OCV) set on the power source front panel. Therefore, an extra 3
to 6 volts may be added to the power source front panel setting to achieve the
actual arc voltage needed or shown in the tables.
0558 012 634
Wire Feed Speed
(inch/min) / (m/min)
200 / 5.1
250 / 6.35
23 V 150 A
23 V 175 V
23 V 200 A
25 V 250 A
- 22 -
300 / 7.6
350 / 8.9
24 V 190 A
25 V 205 A
27 V 280 A
27 V 290 A
400 / 10.2
25 V 220 A
28 V 340 A
© ESAB AB 2016
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