Alfa IN AXE 250 IN MIG MAN, Instruction Manual, Page: 18 / 24

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4. Use V8 button to select the values you want to set the machine with, the
corresponding light will illuminate.
5. Machine output (current, wire feed speed, material thickness) is set by the
encoder V5 .
6. If necessary, power and its characteristics can by fine-tuned by encoder V16 .
7. The value of the voltage or the choke correction are shown on the display
V11 only during the configuration.
8. From the factory, the machine is set to use voltage correction. (to change the
meaning of the correction from Voltage to Wire speed, press and hold the
button
V13 ). (When you change the welding power by turning the encoder
V5 it will reset the correction, in other words the machine uses parameters
from the factory stored synergic curves. The machine supports the possibility
of maintaining a user-defined correction when changing the welding power.
Switching to such arrangements must be made by the manufacturer or an
authorized service center.)
9. Button V13 to switches between correction of voltage and correction of the
choke. Confirm the change with encored V16 .
MIG/MAG WELDING MANUAL
1. Choose MAN method (see SETTING THE METHOD OF WELDING)
2. The left display V10 shows MAN.
3. The left display V10 shows the wire feed speed, the right display V11 shows
voltage or choke.
4. Wire feed speed is set by the encoder V5 .
5. Voltage or choke is adjusted via the encoder V16 .
6. Voltage or choke can be displayed and set by long-pressing V13 .
7. During welding, the display V10 shows measured values of welding current
and the display V11 shows measured values of voltage.
8. After welding, on the displays will remain measured values ( HOLD ) for 6 sec.
WELDING VOLTAGE
It is set using voltage potentiometer pic. 8, V16.
WELDING CURRENT – GENERAL INFORMATION
Size of the welding current depends on the wire feed speed and voltage.
Characteristic of the curve ("hardness / softness") can be controlled by
correction of the choke.
Approximate setting for the MIG / MAG welding current and voltage corresponds
the empirical relationship U2 = 14 +0.05 I2. According to this relationship, we
can determine the required voltage. When setting the voltage, we expect the