HTP Pro Pulse 220 MTS, Owner'S Manual

Page: 19 / 30

19
MIG 4T
The selection and setup of MIG 4T works identically to
MIG 2T. The only difference between MIG 2T and
MIG 4T is trigger function. In MIG 2T, pressing and
holding the trigger will make the weld, and releasing
the trigger will stop the weld. In MIG 4T, pressing the
trigger will make the gas flow, releasing the trigger will
make the weld start, pressing the trigger again will
make the weld stop, and releasing the trigger will make
the gas stop. The procedure is the same when welding
mild steel, stainless steel, silicon bronze, flux-cored, as
well as every other kind of welding wire.
Attention: The 4T trigger is reprogr ammed for ALL
pulsed aluminum programs. We assigned a hot start
function to the initial pull. Please read Welding
Aluminum with the Pro Pulse 220 MTS (pages 10
and 11) to fully understand the hot start function.
Stitch Welding
Fig. 20
to. The stitch process repeats itself indefinitely until
you release the trigger.
Pro Tip: Don’t use any slope down with spot or
stitch timers unless you are aware of the
consequences and that that is really your desired
weld procedure.
NOTE: Try to avoid turning the Pro Pulse 220
MTS off when in stitch mode. If you turn the
machine off in stitch mode, you may encounter an
overheat message when you turn the
machine back on. If you turn the machine off and
encounter the overheat message, turn the machine
off again and then back on. When you turn the
machine back on, press button A (Select Mode)
three (3) times within 3-5 seconds. This will put the
Pro Pulse 220 MTS back into MIG 2T mode. At
this point, the machine should be operational, but
we suggest that you once again turn the machine off
and then power back on.
Note: The Stitch weld function can also be used as a
Spot welding function. Set your Time ON for the
spot weld size/duration you want to do and select a
long Time OFF (for example 5-10 seconds) so you
can let go of the trigger before the next spot weld
starts.
Press and release button A (Select Mode) until the LED
next to STITCH illuminates, and then press and release
button E to enter the menu. The new screen ( Fig. 20 )
lets you adjust Time ON and Time OFF for stitch
welding. To adjust Time ON, turn encoder G to the
desired time, and then press and release button C . Now
encoder G will adjust Time OFF. When initially setting
up the stitch feature, set the start speed to 100% and the
time to 0.1 seconds. Later, the settings may be adjusted
to yield the best results. Stitch welding can be used to
reduce heat input, to fill gaps where the fit is less than
perfect, or on thin material where burning through is a
concern. When you press and hold the trigger, the
machine welds for the amount of time that Time ON is
set to, then it will stop (while the trigger is still
depressed) for the amount of time that Time OFF is set