Miller Millermatic 255, Руководство пользователя

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A complete Parts List is available at www.MillerWelds.com
OM-279299 Page 32
6-2. Special Features
A. MIG Mode
In MIG mode, the left knob is used to adjust welding voltage within a range of 12 to 32 volts. The right knob is used to adjust wire feed speed within a
range of 50 to 800 IPM. Refer to weld chart inside the wire drive compartment for proper parameter settings according to wire type, shielding gas, and
material type and thickness.
B. Jog Mode
If gun trigger is pressed and held for more than 3 seconds without striking an arc, unit will automatically shut off weld power and shielding gas. Trigger
error will be displayed after preset length of wire is fed, dependent on MIG gun selected. See Section 8-5.
C. Weld Status
When trigger is released on a MIG gun, spool gun, or push-pull gun, the last actual amperage and voltage are shown on the display for 5 seconds. If a
programmed value requires adjustment after the arc is extinguished and during the 5-second display of actual values, turning either knob will cause
actual values in the displays to be replaced by programmed values for adjustment purposes.
D. MIG Gun-On-Demand
MIG guns, spool guns, and push-pull guns can be used with this unit. To switch from one gun to another, momentarily press the trigger on the desired
unused gun to make it the active gun. Once the trigger is pressed, the unit will recall stored data and both displays will show the last programmed values
for that particular gun. If the unit is powered down and back on again, the gun last used will become the current active gun.
E. Pulsed MIG Mode Voltage Adjustment
In Pulsed MIG mode there is no manual voltage adjustment; instead, voltage is synergically aligned with the proper wire feed speed. Arc Length adjust-
ment is used to adjust actual arc length, which automatically adjusts the voltage. See weld chart in front compartment for proper wire feed speed
adjustment according to wire size and type.
Notes