HTP Pro Pulse 220 MTS, Owner'S Manual

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21
Important Things to Know about the JOB Mode
When you receive the Pro Pulse 220 MTS, the machine
includes some preprogrammed JOBs (typically, slots 20-
29). However, you can delete the preprogrammed JOBs,
as well as the JOBs you saved on the machine. To delete
all saved JOBs, press and release the JOB button C ,
and then press and hold the Select Mode button A and
button E at the same time for approximately five (5)
seconds. After hearing five (5) beeps, all JOBs,
including the preprogrammed demo JOBs, will be
permanently erased from the machine’s memory.
When saving a JOB, please note that the machine saves
everything , which means not just wire speed,
material thickness, and voltage, but also any voltage
corrections you make, if you made the weld in 2T or 4T
mode, induction (when and where applicable), run-in
speed and time (or hot start), burn back, pinch, pre– and
post-flow, t2 slope down (when and where applicable),
etc. For different JOBs, these settings can and will be
different, and, as you recall each JOB, the JOBs will
load with the exact settings used when you saved them.
Why is the JOB Mode Important and How Do You
Use It?
We will illustrate the importance of the JOB mode and
explain how you use it with an example (more
particularly, with an example using the JOB mode, as
well as the Trigger JOB Function). Let’s say you weld
with a lot of mild steel. You may choose to save two or
three JOBs with your favorite or most often used
wire diameters in the first three memory slots. To access
each of your three most often used JOBs, you simply
need to pull the trigger (see Trigger JOB Function on
page 19) to switch from one JOB to the next. Regarding
the JOBs themselves, for example, you could set up the
first JOB based on the actual material thickness you are
welding (for flat work or in-position welding). Then,
you could set up the second JOB for vertical welding (so
the parameters would be slightly cooler than JOB #1).
Lastly, you could set up the third JOB as a stitch weld
function to more easily fill gaps on less than perfect fit
up.
TIPS:
If you program a JOB for stainless steel, we suggest
using a long post-flow time (5 to 10 seconds) to shield
the weld.
If you program a JOB for aluminum, we recommend
setting the pinch low to prevent burn backs. Also, set
the t2 slope down between 2.5 and 5 seconds to fill
the crater at the end of the weld.
Remote Control Options
The Pro Pulse 220 MTS features a remote control (foot
pedal or hand control) option for MIG welding. The
unique feature of using a remote control for MIG
welding allows you to change settings (material
thickness = wire speed + voltage) while welding—
giving you 100% control, 100% of the time. If, for
instance, you encounter a section of poor fit-up when
welding and need to lower the settings of the machine
to bridge the gap, you can do so with a simple
movement of the remote control.
The remote control feature is especially handy when
welding aluminum because it allows you to adjust hot
start as much as or as little as and as short as or as long
as you want, as well as fill craters as slow as or as fast
as you want. The properties and weld-ability of
aluminum change dramatically with increased heat so
bridging gaps on poor fit up can be difficult. However,
the remote control feature makes welding aluminum, in
every thickness and temperature range and with good or
poor fit up, a breeze.
Trouble Shooting Burn Back Issues
Set the burn back to 004, and then lower the pinch to
zero (the pinch snips the wire by sending a final
electrical current to trim the ball off of the end of the
wire). When setting pinch, start at zero and increase the
pinch by increments of 10. Then, to fine tune, increase
the pinch by increments of 5.
If you are experiencing burn back issues at start-up,
then the start speed is set too low. The start speed
determines how crisp the arc ignition will be—high
speeds cause machine gunning and/or a sluggish arc
start. The start speed should be 0.3 or less (never above
0.5). Start speeds vary depending on the material you
are welding; thicker or harder wire requires a slower
start speed, and thinner or softer wire requires a higher
start speed.
If you are experiencing burn back issues in the middle
of the weld, the issue may stem from the contact tip,
wear on the liner, drive roll pressure, or wire brake
pressure. When welding aluminum, insufficient gas
flow may be causing the issue or your voltage
compensation could be set too high (e.g., on +8).
If you are experiencing burn back issues at the end of
the weld, then the pinch is set too high. Go into the
settings and change the pinch back to 0. Increase the
pinch by 5-10 until the Pro Pulse 220 MTS electrically
snips the ball from the end of the wire. For 4043
aluminum, the prime pinch setting falls in the 40 to 50
range, 5356 aluminum falls around 75, and 5554
aluminum falls around 100. For steel, the prime pinch
setting falls around 100, and for silicon bronze, the
prime pinch setting falls between 50-75. Please note:
The above ranges are approximate.