Migatronic PI 320 AC/DC Manuel D'instruction page 23

Slow pulse
(TIG DC and TIG AC)
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 DC and
from 0.1 to 10 sec. in AC, in steps of 0.01 sec.
Pause time
Adjustable from 0.01 to 10 sec. in DC and
from 0.1 to 10 sec. in AC, in steps of 0.01 sec.
Base amp
Adjustable from 10 to 90% of the pulse
current.
Fast pulse (only TIG DC)
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
The machine offers one tack welding program
to allow a quick switch from welding to tack
welding. In TIG DC and AC 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.
TM
(only TIG DC)
TM
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
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%.
Arc-power
The arc power function is used to stabilise the
arc in MMA welding. This can be achieved by
increasing welding current during the short-circuits.
The additional current ceases when the short circuit is
no longer present.
Amp
Set welding
current
Arc power can be adjusted between 0 and 100% of
the welding current setting.
E.g. If the welding current is set to 40A and arc power
to 50% the additional current is 20 A equals 60 A
when doing arc power. If the arc power is set to
100% the additional current is 40 A equals 80 A
when doing arc power.
Torch adjustment /
remote control – 7-poled plug
The regulation of welding current is made by
means of the torch potentiometer (optional). The
maximum current reachable is the level previously
adjusted on the front panel. The minimum current is
5A.
External adjustment –
8-poled plug (optional)
Can be used for foot pedal (optional) and
remote control units (optional) that use a 8-poled plug.
The function is used for arc ignition and adjustment of
the current. The maximum current reachable is the
level previously adjusted on the front panel. The actual
current is shown on the display.
23
0,5 s
Additional
current supply
from hot-start-
function
time
Additional current
supply from the arc
power function
short-
time
circuit