Migatronic PI 320 DC Manuel D'instruction page 24

Post-flow [s]
Post-flow is the period of time for which gas
flows after the arc is extinguished and is
variable 0-20 sec.
Synergic post-flow (option) can be activated by
adjusting time to less than 0 secs, if the IGC kit has
been mounted. The displays shows then IGC and the
current post-flow. The synergic post-flow can be
adjusted +/- 50% by pressing the
adjusting the control knob (when the function is
active).
IGC Gas control kit (option)
Adjustment of the gas flow is possible
if a gas control kit has been installed
as special equipment. Press on the
the gas pre-flow and gas post-flow icons are turned
on. The gas flow is variable 4 - 26
Synergic gas flow can be activated by setting l/min to
less than 1 l. The display shows then IGC and the
current gas flow level. The synergic gas flow can be
adjusted +/- 50% by pressing the
ajusting the control knob (when the function is
active).
The gas valve will be completely open and the gas
adjustment is disconnected when the gas flow rate is
set to 27l.
CWF wire program (option)
Press on the
slope-up and slope-down icons are
turned on. The display will show X.YY where X is the
CWF unit and YY is the relative program number to be
used. Rotate the encoder to select unit/program. 0.00
is used when NO CWF must be activated. (default)
Slow pulse (TIG DC HP)
Is used for selection of slow pulse.
The pulse current is equal to the
set current. It is possible to adjust:
Pulse time
Adjustable from 0.01 to 10 sec. in steps of
0.01 sec.
Pause time
Adjustable from 0.01 to 10 sec. in steps of
0.01 sec.
Base amp
Adjustable from 10 to 90% of the pulse
current.
-key pad and
-key pad until
l/min.
-key pad and
-key pad until the
24
Fast pulse (TIG DC HP)
Is used for selection of fast pulse.
The pulse current is equal to the
set current. It is possible to adjust:
Pulse frequency
For TIG DC welding the range is 25-523 Hz and
For MMA DC welding the range is 25-100 Hz.
Base amp
Adjustable from 10 to 90% of the pulse current.
Synergy PLUS
The machines automatically and dynamically
adjust all overall pulse parameters during
welding, when the peak welding current has been set
by encoder.
TIG tack welding TIG-A-TACK
(TIG DC HP)
The machine offers one tack welding program
to allow a quick switch from welding to tack welding.
The following features will be available:
Arc ignition HF 2-times
-
No slope-up/slope-down
-
No pulse
-
Spot TIME from 0.01 to 2.5 secs in steps of 0.01
-
sec. Set the value by selecting the parameter
"spot time"
.
Electrode welding (MMA)
Is used for selection of electrode
welding. It is not possible to
change welding process during welding.
Hot start
Hot start is a function that helps to establish
the arc at the beginning of MMA welding. This
can be achieved by increasing welding current (when
the electrode is applied to the workpiece) in relation to
the set value.
This increased start amp is maintained for half a
second, after which it decreases to the set value of
welding current.
Amp
0,5 s
Set welding
current
Welding
start
The hot start value reflects the percentage value by
which initial current is increased, and can be set be-
tween 0% and 100%.
TM
(TIG DC HP)
TM
Additional
current supply
from hot-start-
function
time