Migatronic OMEGA3 YARD 300 Mode D'emploi page 16

PULSE / SYNERGIC control panels
Arc power (MMA)
The arc power function is used for
stabilising the arc in electrode welding. This takes place by
increasing the welding current during short-circuits. The
extra current is disposed off, when there is no longer a
short-circuit. Arc-power can be set between 0 and 150 %.
Gas pre-flow (MIG/MAG)
Gas pre-flow ensures that the arc
is fully protected from atmosphere before an arc is
established. Gas pre-flow time is the time from activating
the torch trigger until the wire feed starts. The gas pre-
flow time can be set between 0.0 sec. and 10.0 secs.
Soft-start (MIG/MAG)
Soft start improves the ignition
characteristics. Here speed with which the wire shall start
is set. The speed is set between 0.0-18.0 m/min.
MIG/MAG-hotstart (synergic MIG)
MIG/MAG-hotstart is a function that
helps to create the right temperature in the weld pool at
the beginning of a weld.
In 4-times the welding starts with an increased start amp.
This start amp remains there until the torch trigger is
released again. Subsequently, the current will decrease in
½ sec. to the adjusted value.
In 2-times the hot start cannot be controlled by the torch
trigger and is therefore defined in time in F34 (hotstart
time).
The start amp is increased by a percentage of the welding
current. It can be adjusted between -99 % and 99 %.
In manual MIG/MAG it is not possible to adjust a
MIG/MAG hot start by means of F33 and F34.
Hot-start time (synergic MIG)
Hotstart time determines the time in
which welding in hot-start in MIG/MAG two-times takes
place. The time can be set between 0.0 and 20.0 sec.
Slope-down (synergic MIG)
The time of the current slope-down is
set. By activating the trigger, the slope down begins in
order to make a crater filling. The current reduces from
the adjusted current to stop amp.
In 4-times the welding after current slope-down can be
extended by triggering the torch trigger continuously.
Slope down can be adjusted between 0 and 10 sec.
Stop amp (synergic MIG)
Stop amp is adjustable between
0-100% of the set welding current.
Burn back (MIG/MAG)
The burn back function prevents the
welding wire sticking to the workpiece at the end of a
weld. Burn back can be adjusted between 0 and 30.
Gas post-flow (MIG/MAG)
Gas post-flow time ensures protection
of the molten pool after welding and cools off the torch.
The gas post-flow time is the time from which the arc
extinguishes to the gas flow being disconnected.
The time can be set between 0.0 and 20.0 sec.
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Spot time (MIG/MAG)
When the spot time function is active,
welding will stop automatically after expiry of the set spot
time. It is possible to stop welding before the spot time
expires by pressing the torch trigger.
If the spot time is altered during welding, the alteration
has no effect till next welding. The spot time is adjustable
between 0.0 and 50.0 seconds. The value 0.0 means that
the function is disconnected.
Stop amp time (MIG/MAG)
Stop amp time is adjustable between 0
and 24 seconds.
Duo PLUS parameters
TM
If the -key is activated, the following
DUO Plus TM parameters will be adjustable:
Duo PLUS
TM
Effect trim is adjustable in % of the set
welding current, i.e. a value of 50% gives a base current
of 50A, if the set welding current is 100A.
Duo PLUS
TM
The time for the set effect trim is
adjustable between 0.1 and 9.9 seconds.
IGC - Intelligent Gas Control (option)
Gas flow % of welding current
Gas flow is adjustable between 0 and
27 l/min. Gas error is disconnected if the flow is set at
27 l/min.
Gas trim in %
Gas trim is adjustable between -50 and
+50% of the synergic gas flow.
User menu
Press and hold the -key to open the user menu when
the machine is ready to weld. Turn the left control knob
until the desired menu is displayed. Use the right control
knob to alter settings displayed in the right display. Press
the -key briefly to activate functions, such as gas test.
Functions and parameters in the user menu:
Press the -key to exit the menu.
GAS test
Press the -key to open and close the gas valve.
If an IGC kit is installed, it is possible to adjust the gas flow
with the right control knob.
effect trim %
time s