Kemppi FastMig MSF 53 Operating Manual page 16

When the adjustment of SETUP parameters has been confirmed with long press on button
(10b), the adjustable parameter is selected via potentiometer (11), the name of which is
shown on display (2). Parameter value is selected from potentiometer (12), value can be seen
on display (8). (See the information on SETUP functions).
Selection of MIG operating procedure (10a)
MIG 2T: MIG welding with two-sequence procedure of welding gun start switch
1. switch pressed: welding starts
2. switch released: welding stops
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 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.
Gas test (5)
EN
The gas test button opens the gas valve without activating the wire feed or power source.
By default, gas flows for 20 seconds. The display shows the remaining gas flow time.
The default time for gas flow can be adjusted via the right-hand potentiometer within a 10- to
60-second range. 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
adjusted via the right-hand potentiometer.
When the button is released, the wire feed stops. Unit 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 to the equipment. When liquid cooling is 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 that were in use when welding was
discontinued to the displays.
Selection of welding process (9)
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).
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