Miller Electric 350P manual Troubleshooting, Trouble Remedy

Page 50

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

6-6. Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trouble

Remedy

 

 

No weld output; wire does not feed.

Be sure line disconnect switch is On (see Section 3-16or 3-17).

 

 

 

 

 

 

 

Replace building line fuse or reset circuit breaker if open (see Section 3-16or 3-17).

 

 

 

 

 

 

 

Secure gun trigger connections (see Section 3-7).

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check Power switch.

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check all board connections and main control board.

 

 

No weld output; wire feeds.

Thermistor RT1 or RT2 open (overheating). Allow fan to run; the unit will be enabled when it has cooled

 

 

 

and temperatures are within acceptable limits (see Section 3-2and 6-2).

 

 

 

 

 

 

 

Connect work clamp to get good metal to metal contact.

 

 

 

 

 

 

 

Replace contact tip (see gun Owner’s Manual).

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check main control board and main rectifier.

 

 

Low weld output.

Connect unit to proper input voltage or check for low line voltage (see Section 3-16or 3-17).

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check main control board and user interface board.

 

 

Low, high, or erratic wire speed.

Readjust front panel settings (see Section 4-1).

 

 

 

 

 

 

 

Change to correct size drive rolls (see Section 6-4).

 

 

 

 

 

 

 

Readjust drive roll pressure (see Section 3-18).

 

 

 

 

 

 

 

Replace inlet guide, contact tip, and/or liner if necessary (see gun Owner’s Manual).

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check input voltage.

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check main control board.

 

 

No wire feed.

Turn Wire Speed control to higher setting (see Section 4-1).

 

 

 

 

 

 

 

Clear obstruction in gun contact tip or liner (see gun Owner’s Manual).

 

 

 

 

 

 

 

Readjust drive roll pressure (see Section 3-18).

 

 

 

 

 

 

 

Change to correct size drive rolls (see Section 6-4).

 

 

 

 

 

 

 

Rethread welding wire (see Section 3-18).

 

 

 

 

 

 

 

Check gun trigger and leads. Repair or replace gun if necessary.

 

 

 

 

 

 

 

Have Factory Authorized Service Agent check main control board and user interface board.

 

 

 

 

 

 

 

H − − message appears on voltmeter and ammeter displays to indicate thermistor RT1 or RT2 is open

 

 

 

and unit is in an overheated condition (see Section 6-5).

 

 

 

 

 

 

 

OM-1327 Page 46

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Page 49 Page 51
Contents File MIG Gmaw ProcessesDescription From Miller to You Table of Contents Warranty Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can burnWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Equipment can injure Welding Wire can injureFire or Explosion hazard Moving Parts can injureEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings About Implanted Medical DevicesIndique des instructions spécifiques Symboles utilisésUNE Décharge Électrique peut entraîner la mort LE Soudage peut provoquer un incendie ou une explosion LES Pièces Chaudes peuvent provoquer des brûluresLES Fumées ET LES GAZ peuvent être dangereux Risque D’INCENDIE OU LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’ÉQUIPEMENT peut provoquer des blessuresLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLes Pièces Mobiles peuvent causer des blessures LE Soudage À L’ARC risque de provoquer des interférencesEn ce qui concerne les implants médicaux Principales normes de sécuritéInformations relatives aux CEM OM-1327 Specifications Duty Cycle And OverheatingConnecting To Weld Output Terminals Volt-Ampere CurveInstalling Work Clamp Installing Welding Gun/Cable HolderInstalling 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-ProXR Edge guns prior to serial no Setting Gun Polarity For Wire Type Changing PolarityInstalling Gas Supply Rear PanelHz Single Phase Hz Three Phase Input Voltage Installing Wire Spool and Adjusting Hub TensionElectrical Service Guide Min Grounding Conductor Size In AWGSelecting Input Voltage 200/230/460 Volt Models Only Selecting a Location And Connecting 3-Phase Input Power Serial Number And Rating Label LocationDisconnect Device Input Power Connections Selection a Location And Connecting 1-Phase Input PowerDo not move or operate Unit where it could tip Threading Welding Wire For MIG Gun Hold wire tightly to keep It from unravelingFor Aluminum Push-Pull welding For XR-A Pistol Gun Threading Welding Wire Through XR GunsTurn welding power source Off Controls MIG ModeJog Mode MIG Gun-On-Demand Pulse MIG Mode Voltage AdjustmentWeld Status Pulse MIG Gun-On-DemandMIG Chart Weld Parameters ForPulse Mode WeldçêchartsMIG Welding Mode − ProgrammingPulse MIG Welding Mode ARC LengthTimers Crater Fill display can be turned Two parameters that will have Setting Hot Start Aluminum Pulse Only ParametersManual Hot Start Mode Setting Crater Fill Recommended Crater Parameters Recommended Crater Fill Parameters19ga 20ga 05mm 0.9mm System Reset Motor Calibration Function Set Up Push Motor Torque SUP Maintain more often during severe conditions Routine MaintenanceOverheating Measuring Input Capacitor Voltage Changing Drive Roll and Wire Inlet Guide Grooved drive rolls are re Quired for feeding aluminum wireXXX Help DisplaysTip Save Jog XXX Wire Feed SpeedHelp MM 350PTroubleshooting Trouble RemedyOM-1327 − Electrical Diagram 246 030-B − Parts List Drive Roll And Wire Guide KitsService SupportOwner’s Record Miller Electric Mfg. Co

350P specifications

The Miller Electric 350P is a highly regarded power source in the world of welding, known for its impressive performance and versatility. This machine is part of the Miller family's long-standing tradition of providing reliable and efficient welding solutions for various applications including construction, manufacturing, and maintenance.

One of the main features of the Miller 350P is its ability to perform both MIG and Pulsed MIG welding. This dual capability allows operators to choose the most suitable welding process for their specific requirements. The machine is equipped with a robust inverter technology, which greatly enhances its efficiency and reduces energy consumption. The inverter design allows for a portable and lightweight unit, making it easier for welders to transport and set up in different working environments.

The 350P showcases an intuitive interface, featuring a digital display that provides real-time information on parameters such as voltage, current, and wire feed speed. This advanced interface is user-friendly, allowing operators to make quick adjustments on the fly, ultimately improving productivity and weld quality. The machine also supports a wide range of materials, including steel, stainless steel, and aluminum, making it a versatile tool for various projects.

Another key characteristic of the Miller 350P is its advanced arc control technology. This includes features such as Auto-Set and Adaptive Hot Start, which automatically adjust the welding parameters based on the material thickness and type. This technology not only simplifies the process for the operator but also enhances the overall quality of the welds, reducing the risks of defects and ensuring consistent results.

Additionally, the Miller 350P is designed with durability in mind. The machine is housed in a rugged case that protects it from challenging environments, allowing it to withstand the rigors of everyday use. Its cooling system ensures that it operates at optimal temperatures, preventing overheating during extended welding sessions.

In summary, the Miller Electric 350P is a powerful and versatile welding machine designed to meet the demands of today’s welding professionals. With its advanced technologies, user-friendly interface, and durable construction, it stands out as a top choice for those seeking efficiency and reliability in their welding processes. Whether for industrial applications or personal projects, the 350P offers a robust solution that supports a wide variety of welding needs.
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