Migatronic PI 400 PLASMA Betriebsanleitung Seite 21

Fast pulse
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/Plasma 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 Plasma 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"
.
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 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.
Ignition methods
It is possible to choose between 2 different
methods of ignition for TIG welding: High-
Frequency (HF) and LIFTIG ignition. The ignition
method cannot be changed during welding. The
LIFTIG ignition is active when the indicator is
illuminated. The HF is automatically active when the
LED is switched off.
HF-ignition (TIG and PLASMA welding)
In HF-TIG ignition the eletrode should not touch the
workpiece. A high-frequency (HF) impulse initiates the
arc when the torch trigger is activated.
The HF will not arise and the machine will stop if the
electrode is in contact with the workpiece. Detach the
electrode and start ignition again
TM
TM
LIFTIG-ignition (only TIG)
In LIFTIG ignition the TIG arc is ignited after making
contact between the workpiece and the tungsten
electrode, after which the trigger is activated and the
arc is established by lifting the electrode from the
workpiece.
Trigger mode
Selection of trigger mode. Four-times trigger
mode is active when the LED is illuminated,
and two-times trigger mode is active when the LED is
turned off. It is not possible to change trigger method
during the welding process.
Two-times
The welding process begins by pressing the torch
trigger. Welding continues until the trigger is released
again which effects the slope-down period.
Four-times (only TIG)
The welding process begins by pressing the torch
trigger. If the torch trigger is released during the slope-
up period welding continues with the adjusted welding
current.
In order to stop the welding process the trigger must
be pressed again for more than 0.5s after which the
slope-down period begins. The slope-down period can
be stopped by releasing the trigger. Thereafter the
post-flow starts.
Reset to factory settings of all programs
It is possible to recall all factory standard parameters.
In this case all programs in the machine will be reset
to the following value:
•
MMA current 80A
•
MMA hotstart 50%
•
MMA arc power 50%
•
TIG Current 80A
•
TIG Spot Current 80A
•
Plasma current 80A
•
Plasma pilot arc 10A
•
Plasma gas 3,0 Liters
•
Plasma gas slope down 0 sec.
•
Plasma gas final value 0,1 Liters
•
Shield gas 15 Liters
•
Pre-flow 0.0 sec
•
Post-flow 3.0 sec
•
No slope-up/slope-down
•
Start amp 40%
•
Stop amp 20%
•
Second Current level 50%
•
Base amp 40%
•
Fast pulse frequency 49Hz
•
Pause time = Pulse time = 0.1 sec
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