Kemppi SF 52W - Manual (Page 8)

FastMig SF 52W, SF 53W
6
EN
2.3 SF 52W and SF 53W operations
ON/OFF button (1)
The wire feed unit remains in the OFF position when the power source is switched on, thus
preventing start-up. ’OFF’ is shown on the display.
When the ON/OFF button is pressed for more than 1 second, the unit starts up. The unit is now
ready for welding and will automatically return back to it previous position, before the power
was cut off. The wire feed unit starts up also by pressing three (short) times the switch of the
welding gun.
Basic settings and displays
With MIG welding the wire feed speed is set via left potentiometer (control knob) and the
value is shown on the left display. The welding voltage is set via right potentiometer (control
knob) and the value is shown on the right display. During welding, the left display shows the
actual welding current value and the display on the right shows the welding voltage.
With electrode welding (MMA) the welding current value is set via the potentiometer and
the value is shown on the left display. The display on the right shows the idling voltage of the
power source. During welding the left display shows the actual welding current value and the
display on the right shows the welding voltage.
When MIG dynamics/electrode welding Arc force adjustment is activated with Arc Force/
Dynamics button the value is adjusted via right potentiometer (control knob) (see the
information on adjustment of MIG dynamics/arc force).
With Synergic 1-MIG welding, the power value is set via left potentiometer (control knob) and
the length of the arc via right potentiometer (control knob) (see ’1-MIG welding’).
Adjustment of MIG dynamics/Arc Force (3)
With MIG welding dynamics adjustment is influenced on welding stability and spatter
amount. Zero setting is recommended basic setting. Values –> min (-1 ... -9), softer arc for
reduced spatter amount. Values –> max (1 ... 9), harder arc for increased stability and when
100 % CO₂ shielding gas is used when welding steel.
With electrode welding Arc Force adjustment is influenced on welding stability. Adjustment
is needed for using different types of electrodes. Control range (-9 ... 0) is commonly used
for welding electrodes for stainless steel. Control range (0 ... +9) is used for harder arc
characteristic to increase stability, e.g. for welding with thicker basic electrodes and using
lower current value than recommendated. Factory set value (0) is a good general use for
adjusting the roughness of the arc.
Indication of liquid-cooled MIG gun (4)
You can activate either liquid- or air-cooled MIG gun with a setup parameter. For more
information, see chapter 2.6.
If the LED (4) is lit, liquid-cooling is activated in the system. In this case, ensure that you have
connected a liquid-cooled MIG gun to the equipment. The cooling units starts on the next
machine startup.