Control Knobs; Adjustment Of Mig Dynamics (Arc Force); Gas Test; Wire Inch - Kemppi FastMig KM300 Operating Manual

3.3.3 Control knobs

• The left-hand control knob (P8) allows adjustment of the speed of wire feeding. The
selected speed is shown on the display on the left-hand side (P2).
• The control knob on the right-hand side (P9) allows you to adjust the welding voltage. The
selected voltage is shown on the right-hand display (P6).
These adjusters are used also for selecting the values of the machine's operational parameters,
such as the MIG mode and set-up features. A parameter for adjustment is selected with the
left-hand knob knob (P8), while the value of the parameter is selected with the right-hand
knob (P9).

3.3.4 adjustment of Mig dynamics (arc force)

When you press button P3, you can adjust the MIG welding dynamics of the machine by
means of the right-hand knob, P9. The welding dynamics setting affects the properties of the
welding arc and the amount of spatter as follows:
• The value 0 is the recommended basic setting.
• Use values -1 ... -9 if you want a softer arc and less spatter.
• Use values 1 ... 9 if you want a rougher and more stable arc. This setting is useful when
you are using 100% CO₂-shielding gas when welding steel.

3.3.5 gas test

The gas test button (P4) opens the gas valve without activating the wire feed or power source.
By default, gas flows for 20 seconds. The gas flow time remaining is shown on the display.
The right-hand knob (P9) allows you to set the default gas flow time, between 10 - 60 seconds,
and store the new default value in the machine's memory. To abort the gas test, press the start
button or gun switch.

3.3.6 Wire inch

When you press the Wire inch button, P5, the wire feeder engine starts but the gas valve does
not open and the power source is not activated. The default wire feed speed is 5 m/min, and
you can adjust the speed with the right-hand knob. When the button is released, the wire
feeding stops. The machine automatically goes back to the normal state after approximately
five seconds from release of the button or immediately when you press the start button.
FI

3.3.7 selection of liquid- or gas-cooled Mig gun

You can select a MIG gun cooled with liquid or gas by pressing buttons 3 and 5 simultaneously
SV
and holding them down for at least one second.
• When the display reads 'GAS' , you can use a gas-cooled MIG gun with the equipment.
NO
• When the display reads 'COOLEr' , you can use a liquid-cooled MIG gun with the
equipment.
DA You can change the gun selection by pressing buttons P3 and P4 again, as above. With a
liquid-cooled gun selected, the liquid cooling function is started when the power source is
started the next time.
EN EN

3.3.8 retrieval of weld data

DE
The weld data function allows you to return to the welding current and voltage used during
the previous session, with the weld data feature. To use the feature, press buttons P4 and P5
NL
simultaneously.

3.3.9 selection of control panel

FR
Button P10 allows you to switch control between the control panels in the power source and
ES wire feeder. The indicator shows which of the control panels is in use.
• When the 'LOCAL' light is on, the wire feeding speed and welding current are set using
knobs P8 and P9 of the power source control panel.
PL
• When the 'REMOTE' light is on, the wire feed speed and welding current are set using the
control panel of the wire feeder. Control knobs of the power source are disabled in this
RU
mode.
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