ESAB MobileFeed 300 AVS, Instruction Manual

Page: 32 / 52

32
sectIon 3 operatIon
note
On many CV power sources the actual welding arc voltage is usually less the “Open Circuit Voltage” (OCV) set on the power
source front panel. Therefore, an extra 3 to 6 volts should be added to the power source front panel setting to achieve the
“actual” arc voltage needed or shown in the tables.
* MobileFeed Wire Feed Speed Knob Position
WIRE FEED SPEED TABLE
WFS
Set
19 V 20 V 21 V 22 V 23 V 24 V 25 V 26 V 27 V 28 V 29 V 30 V 31 V 32 V 33 V 34 V
Min 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 4 5 5 6 6 7 7 7 9 11 12 15 14 13 13 11
2 44 51 56 65 70 74 77 85 90 93 95 103 102 102 101 100
3 99 109 116 129 136 140 144 155 165 173 179 196 198 200 201 205
4 152 163 170 184 196 204 211 230 241 250 256 275 282 287 291 302
5 210 225 235 255 270 281 290 315 329 339 347 370 379 385 390 405
6 267 282 292 312 331 345 356 388 412 430 443 483 490 495 499 510
7
334 354 368 395 415 430 441 475 503 524 540 587 594 599 603 615
8 380 411 431 472 494 511 523 560 589 610 626 675 685 693 698 715
9 385 427 454 510 536 556 571 615 649 674 693 750 770 785 796 830
Max 395 435 462 515 544 565 581 630 667 695 716 779 803 820 833 873
Min
Max
* Wire
Speed Set
3.5 shutDoWn
A. Release torch trigger to break the arc.
B. When leaving the equipment unattended, always shut OFF and disconnect all power to the equipment and shut off the
shielding gas supply at source.
MobileFeed 300 with Digital meter and
CONSTANT CURRENT Power Source
Using the table, select the weld VOLTAGE / CURRENT 1.
needed for the wire type and diameter to be weld-
ed.
Set the power supply CURRENT using the cur-
2.
rent control knob on the front panel of the power
source.
Read the WIRE FEED SPEED (WFS) at the top of the
3.
column for the wire type, diameter and weld VOLT-
AGE / CURRENT chosen.
Flip the MobileFeed digital display switch to the WFS
4.
position.
Release the pressure roll assembly and pull the gun
5.
trigger then set the WFS on the digital display using
the VOLTS / WFS knob.
Reset the pressure roll assembly and strike an arc
6.
then trim the arc length as needed using the VOLTS
/ WFS knob.
MobileFeed 300 with Digital meter and
CONSTANT VOLTAGE Power Source
Using the table, select the weld VOLTAGE / CURRENT 1.
needed for the wire type and diameter to be weld-
ed.
Set the power supply VOLTAGE using the voltage con-
2.
trol knob on the front panel of the power source.
Read the WIRE FEED SPEED (WFS) at the top of the
3.
column for the wire type, diameter and weld VOLT-
AGE / CURRENT chosen.
Flip the MobileFeed digital display switch to the WFS
4.
position.
Release the pressure roll assembly and pull the gun
5.
trigger then set the WFS on the digital display using
the VOLTS / WFS knob.
Reset the pressure roll assembly and strike an arc
6.
then trim the arc length as needed using the VOLTS
/ WFS knob.
note
Using the “Constant Feed” dip switch settings when using a CC power source is NOT RECOMMENDED. Extreme wire feed
speed sensitivity exists making it difficult to set stable welding condition. The arc stability is very dependant on maintain-
ing constant TTW distance which is almost impossible to control when welding manually. “Constant Speed” settings 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 Mobile-
Feed 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.