Suggested Settings - Everlast PowerMTS 251Si Operator's Manual

Section 1
Amp setting. This helps to prevent the rod from
sticking and helps keep the arc going as arc voltage
falls. This action also boots penetration and can be
used to change the way the arc feels and acts.
5) Burn Back Control. Burn back control is used to
control the length of the wire stick-out after the
trigger is released. It helps to prevent the welding
wire from sticking in the coalescing weld puddle
after the arc is terminated and saves the user from
having to trim the wire before restarting the arc.
6) Spot and Stitch Timers. The spot timer function is
frequently used in fabrication applications where
consistent tack welds are required. The Stitch tim-
er is used in conjunction with the spot timer to cre-
ate a regular on/off cycle of the arc while the MIG
gun trigger is held to control heat input and to
make consistent seam weld during production.
7) Synergic MIG Mode. Synergic mode may be en-
gaged to simplify welder setup and adjustment.
This mode will allow the customer to input basic
parameters and the machine will automatically set
the wire feed speed (amps) and voltage based off
of the user input. The unit's programming is easily
overridden and the welder will remember the new
ratio of voltage to wire feed setting during the ac-
tive welding session until the process is changed, or
until the Synergic mode is deselected. The machine
has three synergic modes, one for standard MIG
operation, one for standard Spool gun operation
and one for standard push-pull gun operation.
8) Pulse MIG Mode. Pulse MIG operation is de-
signed to help the user achieve several key goals
while welding. Most often, the pulse MIG mode is
employed as a modification of the Pulse process
using a different blend of gas (≤10% CO2 typically,
but as high as 20% CO2), than standard 75/25 Ar/
CO2 mix used in short circuit steel. The use of Pulse
spray is helpful for welding out-of-position
(positions other than flat/down hand welding),
which is nearly impossible to do in true axial spray
mode. It is also used to weld thinner material than
typical with spray, while using a thicker wire diame-
ter. The main advantages of the Everlast version of
the single pulse MIG is that it offers control of the
heat and arc cone while maintaining good wet in
and travel speeds by pulsing voltage between two
different values. Due to the unique design of the
Everlast pulse MIG system, short circuit pulse is
feasible with steel and stainless alloys and can be
used successfully to weld materials as thin as .030"
in thickness when properly adjusted. When cou-
pled with either a push-pull gun, or a spool gun, the
Introduction and Specifications
pulse feature is an excellent tool for use in the pro-
duction welding or repair of Aluminum alloys.
9) Pulse TIG Mode. The pulse TIG feature can be
employed to control heat, wicking of the puddle
and reduce the arc cone diameter, improving the
directability of the arc. The Pulse TIG mode allows
the setting of Pulse Amps, Pulse Frequency, and
Pulse Time-On. Each features serves to change and
shape the welding arc and puddle to control heat,
wet-in and penetration.
10) Pre and Post Flow Control. The adjustable Pre
and Post flow control features are designed to im-
prove weld quality at the beginning and end of the
weld where porosity from oxidation can be a prob-
lem. This is accomplished by providing adjustable
time controls for both pre flow and post flow of
shielding gas. This control is active for both MIG
and TIG.
11) Slow Run-in of Wire. This feature improves arc
striking quality in MIG modes by helping prevent
arc stuttering (machine gunning) and push-off dur-
ing arc initiation by slowing the wire speed until
the arc is established. Note: This feature does
prevent the user from taking accurate measure-
ments of wire feed speed manually as the wire
will feed slower until the arc is struck and main-
tained. This is not an adjustable feature and can-
not be deactivated.
12) Spool Gun Modes. This welder is well equipped
to handle the aluminum welding needs of most
customers by being both spool gun and push-pull
gun ready. The unit can handle several different
Everlast spool gun models, but the most capable is
the 300 amp, Parker® DSP 360A spool gun. Also
the user may want to consider the Everlast
SM200N-MTS gun which is a 200+ Amp gun with a
24 series barrel. A spool gun is an economical
choice for light to heavy applications requiring a
fast deposition rate of aluminum on materials
3/16" or greater in thickness. A spool gun is lim-
ited to 4" rolls (usually holding 1 lb of aluminum
and 2 lbs of other filler metals) so numerous
spools may be needed on larger projects.
Basic Design and Construction. This multi-process
welder features an intuitive control panel and couples
it with digitally controlled IGBT inverter design that
produces a stable arc while conserving energy. Everlast
utilizes quality components from US, European, and
Asian based companies to ensure reliability and parts
commonality. Major control components are of a plug-
and-play design which allows rapid diagnosis and repair
12