Everlast POWER i-MIG 253DP Operator's Manual page 46

Section 2
performance.
To set Amps properly in the Double Pulse, first
set Peak Pulse amps as you would for welding
in Single Pulse normally, and up to 20% higher
if desired. Begin to set the Base amps
(Welding LED) with an Amp setting that is 50
to 75% of the Peak Amps. Do not change or
adjust the Volt Offset unless needed. Keep the
Volt Offset value the same in both Peak and
Base portions.
The Frequency of the Double Pulse results in
regulating the spacing of the ripples in the
weld. A slow frequency will yield large, coarse
ripples, while the faster frequency will begin
to refine and tighten up spacing between the
ripples. To achieve TIG like results, try setting
the Pulse to 1 to 3 Hz. A steady travel speed
and a close watch on the puddle will give good
results initially. With practice, the results can
be improved by manipulating the torch in time
with each double pulse cycle. This is accom-
plished moving forward followed by a brief
pause timed to coincide with the up and down
cycles of the weld.
The Pulse Time-On is similar to the Pulse-Time
On featured in the example on page 44. How-
ever, you are simply skewing the time the
pulse spends welding in the high stage of sin-
gle pulse setting against the time the pulse
spends welding at the low pulse setting. In-
creasing the Pulse Time-On increases the heat
put into the weld an reduces the freezing ac-
tion if the pulse hertz. Penetration will be
deeper. Decreasing the Pulse Time-On in-
creases the cooling effect, and definition but
may also reduce penetration and travel speed.
For balanced, even look without sacrificing
travel speed, consider setting Pulse Time on to
Setup Guide and component Identification
PULSE MIG OPERATION
40 to 60% as an initial setting range.
Pulse MIG and Inductance. Whether in Single
Pulse Mode or Double Pulse Mode do not fo-
get about the value of Inductance. It is very
important to the function of the Pulse Mode.
See previous comments regarding the Induct-
ance settings. Remember that if you are
getting a long arc and the wire wants to burn
back into the tip while actively welding, it is
likely that the Inductance is too low. This
effect will be greater while welding Aluminum.
For Aluminum set Inductance to 5 and turn up
from there. If spatter is noticed, it can be a
product of having the Inductance set at one
extreme or the other. It also can be from hav-
ing the Amps set too low.
Synergic Special Note concerning Synergic Pulse oper-
ation with the spool gun: Make sure if you purchase a
spool gun for operation with this unit, that the Parker
version of the spool gun is purchased. This will offer
you excellent control of both Amps and Volts through
the speed control knob located on the spool gun. This
is something particularly useful and will allow you
better control than any other brand or type of spool
gun on the current market by reducing your need to
visit the panel to make corrections to voltage while
welding. You will not be able to adjust amps/wire
speed on the panel in synergic mode since wire speed/
amp control is routed through the gun, but will still be
able to fine tune voltage on the panel if needed.
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