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4.3.1 Soft-Start Adjustment (SYN/MAN)
Soft-Start setting is adjustable on a scale -10 to +10. Sometimes known as 'hot start' or 'slow feed'. When
a weld is started, the workpiece and the wire will be 'cold' compared to welding temperature. This can
cause an uneven and poor start to the weld using the voltage and wire feed speed selected as optimal once
the arc is established. This setting slows the wire speed down at the start of the weld which improves the
weld starting performance. If you find the wire 'bumping' the workpiece before the arc is fully established
try increasing Soft-Start setting.
4.3.2 Inductance (SYN/MAN)
Inductance setting is adjustable from -10 to +10.
This setting changes the MIG waveform to simulate changing the inductance of the welding circuit.
Inductance controls the rate of the current rise and fall as the welding wire contacts the workpiece (known
as a short circuit).
More inductance increases the short circuit time and decreases the short circuit frequency rate. This causes
a wider and more penetrating arc, often with better edge wetting, useful for thicker weld joints.
Less inductance will create a narrow more focused arc. This effect can also be used to fine tune the arc to
produce less spatter. This is often effective on thin materials.
Wire speed, wire size and type, shielding gas will all change the effect that the inductance setting has on
the welding arc. Inductance change will have no practical effect on MIG spray transfer process (as opposed
to short circuit process).
4.3.3 Burnback Adjustment (SYN/MAN)
Burn-back setting is adjustable on a scale 0 to 10. Burnback adjustment controls the short period of time
that the wire feed will continue to run for after the main welding current stops. If the wire feed and current
is stopped at exactly the same time, the wire will still be hot and will 'burn' back and stick to the welding
tip. If this problem is happening, increasing the burnback adjustment will cause the wire feeder to run for
longer after the arc has stopped. If the burnback adjustment is excessive, after a weld has stopped, the
operator will be left with excess 'stick out' wire length from the torch tip that will require correcting before
starting the next weld.
4.3.4 Post-Gas Time (SYN/MAN)
Post-Gas (or Post-Flow) setting is adjustable from 0 – 10 seconds. This controls the period of time the
shielding gas continues to flow after the arc has stopped. This protects the weld area from contamination
while it is still hot enough to react with atmospheric gases, after the weld is finished/trigger is released. In
most common welding applications post-gas is not critical and can be set to 0.
4.3.5 Trigger Function (SYN/MAN)
2T stands for Two Touch or 'Standard Trigger' mode. In this mode the trigger is pulled and held on to start
welding, when the trigger is released, the welding stops.
4T stands for Four Touch or 'Latching' mode. The trigger is pulled once and released to start welding and
then pulled and released again to stop the welding. This function is useful for longer welds as the trigger is
not required to be held on continuously and thus reduces operator fatigue.
4.3.6 Spot/Stitch Weld Time (SYN/MAN)
This setting will ONLY be accessible when Trigger Mode is set to 'Spot Welding'.
Spot/Stitch Weld Time setting is adjustable from 0 – 5 seconds. This controls the length of time for the weld.
When the trigger is pulled the machine will weld for the set time and then stop. This is great for producing
very precise weld size or ensuring consistent weld size/length when spot welding, tacking or stitch welding.
4.3.7 Metric/Imperial (SYN/MAN)
This changes the display settings to either Metric or Imperial language.
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© Weldclass 2020 | E.&O.E.
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Table of Contents
Troubleshooting
