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Component Identification and Explanation
Setting the Unit Up for Welding/Cutting Manually
side. After 5 seconds of adjustment or no input being made, When
the Wire Feed Speed is selected for adjustment the display will
brighten in color. This is the setting. After 5 seconds of no input or
adjustment of other parameters or functions has ceased, the selected
setting will default back to the Voltage setting.
7.
Up-Slope and Down Slope. These two functions are linked in func-
tion. Up Slope provides a time duration for wire speed to accelerate
from the Start Wire Feed Speed (Start WFS). This can be used to
further improve arc starting when used with run in and should exag-
gerate the hot start feel. The Down Slope provides a time duration
for the wire speed to ramp down to the preset End Wire Feed Speed
( End WFS). This provides time for the welder to fill the crater instead
of the arc abruptly terminating and leaving a crater at the end of the
weld. In 2T, the arc will start slow and accelerate up to the welding
wire feed speed automatically. In 4T, the trigger should be depressed
and released quickly, as soon as the arc starts, to allow the Up Slope
to function and accelerate the wire speed. If the trigger is held the Up
-Slope will be delayed until the trigger is released. Note that Down
Slope will keep the wire feeding briefly after the trigger is let go in 2T
if a time value is set more than 0.0 seconds. In 4T the trigger is
depressed and held to control the actual arc termination, or is de-
pressed and let go quickly to automatically allow the wire to deceler-
ate to the End WFS. If one or both of these functions are not desired,
select 0.0S. In PowerSet mode these functions are managed auto-
matically and will be non-adjustable. If manually rapid tacking or spot
welding select 0.0S for both.
8.
Start and End Wire Feed Speed (WFS). The Start and End Wire Feed
functions (Start WFS, End WFS) allow the user to set a pre-
determined wire feed settings at the start and end of the weld. At the
Start of the weld, if being used, a lower setting creates a smoother
start with less popping and spattering typical of cold starts. The re-
duction of the sputtering (also known as "machine gunning") will be
noticeable at lower settings than used to weld. End wire feed speed
is designed to be used to fill the crater at a lower Amperage/WFS to
help prevent stress in the weld. If in doubt about the best setting for
either, always start at the minimum Start and End WFS setting for the
smoothest starts. Or, for general purpose welding set both to 60% to
75% of welding wire feed speed and fine tune it as desired.
9.
Pre-Flow. The unit has an adjustable pre-gas flow setting. This auto-
matically times the flow of gas before the weld, improving overall
weld quality at the critical start of the weld. However, the user may
opt to turn down this setting if desired Use the left Up and Down
navigation keys to navigate and highlight (turn green) this setting.
Use the left adjustment knob to turn the setting on or off. In Flux-
Cored mode, this feature will be unavailable and be listed as N/A.
10. Post Flow. The unit has an adjustable post-gas flow setting. This is
complimentary to the Preflow setting and also serves to improve the
weld quality and prevent oxidation after the weld is terminated and
also serves to provide gun cooling. However, the user may opt to
turn down this setting if desired Use the left Up and Down navigation
keys to navigate and highlight (turn green) this setting. Use the left
adjustment knob to turn the setting on or off. In Flux-Cored mode,
this feature will be unavailable and be listed as N/A.
11. Inductance. This improves the wet in of the weld. A low setting will
result in a very poor arc, with a high pitch. The result will be a raised
ridge in the middle and poor wet-in. Excess spatter may be observed.
The result of too high of a setting will result in a very fluid, flat pud-
dle. The pitch will be raspy and not smooth. Starts will not be as
smooth Generally a setting of 65 to 75% is a good starting point on
Steel with C25. With Steel and C100, 70 to 80% is a good starting
point. Generally pure CO2 is not very smooth on many welders, but
with inductance control, high quality welds can be achieved. Stainless
requires the highest inductance with 90% or greater. Aluminum can
range depending upon the wire from 60 to 80% or so. Flux-Core
behaves a little differently with a 40 to 50% starting point. Of course,
different weld positions, joint designs and thicknesses of metal can
affect the inductance requirement slightly. Use the left Up and Down
arrow keys to navigate and highlight (turn green) the Burn Back con-
trol. Use the left side control knob to change the value.
12. Burn Back. This is the amount of time the arc stays on after the wire
stops feeding. It is used to help prevent the wire from sticking in the
weld and to reduce the need for constant trimming of the wire before
restarting. Use a setting of .1 to .3 seconds to begin with for most
applications. Smaller diameter wires need less burn back time. Use
the left Up and Down navigation keys to select and highlight (turn
green) the Burn Back feature. Use the left adjustment knob to adjust
the duration of the Burn Back.
13. Spot Timer. This is a timer that can be set to automatically shut off
the weld when the trigger is held down. This allows you to make
repeatable and perfectly sized tack welds or short seams. Use the
Right side Up and Down navigation keys to navigate and highlight
(turn green) the Spot Timer. Use the right side adjustment knob to
turn the Spot Timer on and set the duration of the spot timer.
NOTE: Keep in mind that If the spot timer is turned on accidently, the
wire feed will stop suddenly soon after the trigger is pressed. In fact
it may barely feed and just seem to quit if the time is set low. This is
normal, but often a source of tech support calls. If your wire feeder
stops feeding unexpectedly after the trigger is pressed, check this
function first.
14. Stitch Timer. This function works only in conjunction with the Spot
timer. This provides a continuous "on/off" action of the spot timer,
allowing the user to move smoothly and evenly space spot welds
along a seam or around a part, providing "stitches", or a series of tack
welds. The time set is the length of "OFF" time between the Spot
cycles. The trigger will be held down and the spot/stitch cycle will
continue until the trigger is released unless the unit is being used in
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