Miller Electric Millermatic 350 Weld Status, MIG Gun-On-Demand, Pulse MIG Mode Voltage Adjustment

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.A complete Parts List is available at www.MillerWelds.com

because gas valve is located inside spool gun. For MIG guns, wire will feed for up to 2 minutes while trigger is pressed, then wire drive system in unit will automatically shut off. For spool guns, wire will feed for up to 30 seconds before shutting off. If gun trigger is pressed for 3 seconds without striking an arc the displays will show JOG MODE.

4-4. Weld Status

When trigger is released on a MIG gun, spool gun, or push-pull gun, the last actual amperage and voltage will be shown on the displays for 5 seconds. The VOLTS and AMPS indicator lights will illuminate under the displays and each value will appear in the corresponding display.

If a programmed value requires adjustment after the arc is extinguished and during the 5 seconds display of actual values, turning either knob will cause actual values in the displays to be replaced by programmed values for adjustment purposes.

.The 5 second delay after the arc is extinguished for displaying actual weld values can be turned on or off in the Timer menu DISP selection (see Section 5-3).

4-5. MIG Gun-On-Demand

The guns that can be used with this unit are MIG guns, spool guns, and push-pull guns. 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.

4-6. Pulse MIG Mode Voltage Adjustment

In Pulse MIG mode there is no manual voltage adjustment; instead, voltage is synergically aligned with the proper wire feed speed. Arc Length adjustment 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.

4-7. Pulse MIG Gun-On-Demand

The spool gun functions slightly different in Pulse MIG mode. 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. For a spool gun, the wire speed is taken from the position of the gun potentiometer. This wire speed value is automatically adjusted if the potentiometer is moved since the last time the gun was active. If the unit is powered down and back on again, the gun last used will become the current active gun.

4-8. Tip Saver

If gun contact tip is directly shorted to the workpiece while gun trigger is pressed, the welding arc automatically shuts off after 1 second to prevent wire burnback in the contact tip.

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Contents File MIG Gmaw OM-1327Processes DescriptionFrom Miller to You Table of Contents − Programming − Maintenance &TROUBLESHOOTINGHOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killFlying Metal or Dirt can injure eyes Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionMoving Parts can cause injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryAbout Implanted Medical Devices Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationUNE Décharge Électrique peut entraîner la mort Symboles utilisésIndique des instructions spécifiques LES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LA Chute DE L’APPAREIL peut blesser LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées Risque D’INCENDIE OU D’EXPLOLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-1327 Duty Cycle And Overheating SpecificationsVolt-Ampere Curve Connecting To Weld Output TerminalsInstalling Welding Gun/Cable Holder Installing Work ClampInstalling Welding Gun Connecting Spoolmatic 15A Or 30A Gun Be sure to trim liner to proper extension Connecting XR Edge, XR-A Gun, XR-A Python, Or XR Aluma-ProGun End Gun Liner Wire Outlet Guide XR Edge guns prior to serial noPolarity Changeover Information Setting Gun Polarity For Wire Type11/16 Rear Panel Installing Gas SupplyMin Input Conductor Size In AWG Installing Wire Spool and Adjusting Hub TensionElectrical Service Guide Input VoltageSelecting Input Voltage 200/230/460 Volt Models Only 18 in 457 mm for airflow Selecting a Location And Connecting 3-Phase Input PowerTools Needed = GND/PE Earth Ground L1L2 Selection a Location And Connecting 1-Phase Input PowerDisconnect Device Input Power Connections =GND/PE Earth GroundHold wire tightly to keep It from unraveling Threading Welding Wire For MIG Gun150 mm Pressure4321 Indicator ScaleTurn welding power source Off Threading Welding Wire Through XR GunsFor XR-A Pistol Gun Controls MIG ModeJog Mode Pulse Indicator LightPulse MIG Gun-On-Demand Pulse MIG Mode Voltage AdjustmentWeld Status MIG Gun-On-DemandMillerWelds.com Weld Parameters ForWeld Weld Parameters For Pulse ModeWeld Bead Setting OM-1327 MIG Welding ModeLow Setting High Setting Pulse MIG Welding ModeTimers Crater Fill display can be turned Rmpt − Ramp Time Setting Hot Start Aluminum Pulse Only ParametersManual Hot Start Mode To exit this menu, press the Setup 1 button OM-1327Setting Crater Fill Recommended Crater Fill Parameters Recommended Crater Parameters19ga 20ga 05mm 0.9mm System Reset Motor Calibration Function Set Up Push Motor Torque SUP Or Reset rES Overheating Routine MaintenanceDisconnect power = Check = Change ~ = Clean = ReplaceSignificant DC voltage can Measuring Input Capacitor VoltageWorking on unit Changing Drive Roll and Wire Inlet Guide Help Displays Displays a jog wire feed speed OM-1327MM 350P Jog XXX Wire Feed SpeedHelp Tip SaveUnit is in an overheated condition see Section TroubleshootingTemperatures are within acceptable limits see -2and Connect work clamp to get good metal to metal contactOM-1327 − Electrical Diagram 224 242-B Circuit Diagram For 460V/575V Models 223 926-B Drive Roll And Wire Guide Kits Page Page Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact
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