Kemppi FastMig MSF 53 Operating Manual page 18

MIG 4T: MIG welding with four-sequence procedure of welding gun start switch
1. switch pressed: shielding gas flow starts
2. switch released: welding starts
3. switch pressed: welding stops
4. switch released: shielding gas flow stops
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 in welding of 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.
Gas test (5)
The gas test button opens the gas valve without activating the wire feed or power source. Gas
flows for 20 seconds by default. The display shows the remaining gas flow time. The default
time of gas flow can be adjusted via the right-hand potentiometer within a range of 10 to 60
seconds. The new time setting is recorded in the memory. The gas flow can be discontinued
by pressing the ON/OFF button or the start switch of the gun.
Wire feed test (7)
The wire feed switch starts the wire feed motor without opening the gas valve and without
engaging the power source. The default wire feed speed is 5 m/min. The speed can be
EN
adjusted via the right-hand potentiometer. When the button is released, the wire feed stops.
Operation returns to normal approx. 3 seconds after release of the button or if the ON/OFF
button is pressed briefly.
Selection of liquid- /gas-cooled MIG gun (4)
Selection of liquid-cooled/gas-cooled MIG gun is activated by pressing buttons 3 and 5
simultaneously (for more than 1 second). When 'Gas' is shown on the display, the welding
equipment will assume that a gas-cooled MIG gun has been connected. If the above buttons
are pressed again, the text 'CooLEr' appears on the display and the LED indicating liquid
cooling selection lights up. In this case, the welding equipment will assume that a liquid-
cooled MIG gun has been connected. When liquid cooling has been selected, the liquid
cooling unit will start up in connection with the next equipment start-up.
Weld data (6)
The weld data function is activated by pressing buttons 5 and 7 simultaneously. The weld data
function returns the welding current and voltage values to the displays that were in use when
welding was discontinued.
Selection of welding process (11)
The welding process – normal MIG, 1-MIG or FR-MIG – can be chosen by the welding process
selection button. In normal MIG welding wire feed speed and welding voltage is adjusted
separately. In synergic 1-MIG and FR-MIG welding the welding voltage and other parametres
related to welding are optimally bound to each other! In synergic welding the setting for
power and arc lenght are adjusted.
FR-MIG welding is the facility provided separately, so the function is not in every equipment.
Electrode welding (MMA) is selected by pressing the button for >1 second. N.B.! When
electrode welding is selected, the power source, the electrode holder connected to it and the
MIG gun become energised (idling voltage).
Settings selection button (17)
The settings selection button is used to choose the basic settings required. Active settings are
indicated by an LED pilot lamp. Settings are performed manually via the panel potentiometers
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