Table of Contents
Troubleshooting
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Summary of Contents for Miller Electric Millermatic 350, 350P
- Page 1 Millermatic 350 And Visit our website at www.MillerWelds.com Millermatic 350P OM-1327 213 814X 2007−11 Processes MIG (GMAW) Welding Pulsed MIG (GMAW-P) Flux Cored (FCAW) Welding Description Arc Welding Power Source and Wire Feeder File: MIG (GMAW)
- Page 2 ISO 9001:2000 Quality System Standard. particular model are also provided. Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1-1. Symbol Usage ............... . 1-2. - Page 4 TABLE OF CONTENTS SECTION 5 − PROGRAMMING ..............5-1.
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Page 5: Section 1 − Safety Precautions - Read Before Using
DC constant voltage (wire) welder, 2) a DC manual (stick) welder, or 3) an AC welder with reduced open-circuit volt- age. In most situations, use of a DC, constant voltage wire welder is recommended. And, do not work alone! D Disconnect input power or stop engine before installing or servicing this equipment. -
Page 6: Noise Can Damage Hearing
OM-1327 Page 2 D Do not use welder to thaw frozen pipes. D Remove stick electrode from holder or cut off welding wire at contact tip when not in use. -
Page 7: Additional Symbols For Installation, Operation, And Maintenance
1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. D Do not install or place unit on, over, or near combustible surfaces. D Do not install unit near flammables. D Do not overload building wiring − be sure power supply system is properly sized, rated, and protected to handle this unit. -
Page 8: California Proposition 65 Warnings
1-4. California Proposition 65 Warnings Welding or cutting equipment produces fumes or gases which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Section 25249.5 et seq.) Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other... -
Page 9: Section 2 − Consignes De Sécurité − Lire Avant Utilisation
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION Se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes. 2-1. Symboles utilisés DANGER! − Indique une situation dangereuse qui si on l’évite pas peut donner la mort ou des blessures graves. Les dangers possibles sont montrés par les symboles joints ou sont expliqués dans le texte. - Page 10 Il reste une TENSION DC NON NÉGLIGEABLE dans les sources de soudage onduleur quand on a coupé l’alimentation. D Arrêter les convertisseurs, débrancher le courant électrique et décharger les condensateurs d’alimentation selon les instructions indiquées dans la partie Entretien avant de toucher les pièces. DES PIÈCES CHAUDES peuvent provoquer des brûlures graves.
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Page 11: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance
ACCUMULATIONS risquent de provoquer des blessures ou même la mort. D Fermer l’alimentation du gaz protecteur en cas de non-utilisation. D Veiller toujours à bien aérer les espaces confi- nés ou se servir d’un respirateur d’adduction d’air homologué. LES CHAMPS MAGNETIQUES peuv- ent affecter des implants médicaux. -
Page 12: Proposition Californienne 65 Avertissements
LES FILS DE SOUDAGE peuvent provoquer des blessures. D Ne pas appuyer sur la gâchette avant d’en avoir reçu l’instruction. D Ne pas diriger le pistolet vers soi, d’autres per- sonnes ou toute pièce mécanique en enga- geant le fil de soudage. DES ORGANES MOBILES peuvent provoquer des blessures. -
Page 13: Principales Normes De Sécurité
2-5. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www.global.ihs.com). Recommended Safe Practices for the Preparation for Welding and Cut- ting of Containers and Piping, American Welding Society Standard AWS F4.1 de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www.global.ihs.com). - Page 14 OM-1327 Page 10...
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Page 15: Section 3 − Installation
SECTION 3 − INSTALLATION 3-1. Specifications Max. Open Circuit Circuit Rated Output Rated Output Voltage 300 A at 350 A at 32 VDC, 32 VDC, 60% Duty 60% Duty 40% Duty 40% Duty Cycle Cycle * While idling Wire Type and Diameter Solid Steel Stainless Steel .023 −... -
Page 16: Volt-Ampere Curve
A complete Parts List is available at www.MillerWelds.com 3-3. Volt-Ampere Curve 3-4. Connecting To Weld Output Terminals Tools Needed: 3/4 in (19 mm) Turn off power before connecting to weld output terminals. Failure to properly connect weld cables may cause excessive heat and start a fire, or damage your ma- chine. -
Page 17: Installing Work Clamp
3-5. Installing Work Clamp 3-6. Installing Welding Gun/Cable Holder A complete Parts List is available at www.MillerWelds.com Work Cable Boot Route cable through front panel opening. Slide boot onto work cable. Negative (−) Output Terminal Connect cable to terminal and cover connection with boot. -
Page 18: Installing Welding Gun
A complete Parts List is available at www.MillerWelds.com 3-7. Installing Welding Gun OM-1327 Page 14 Drive Assembly Gun Securing Knob Gun End Loosen securing knob. Insert gun end through opening until it bottoms against drive assembly (make sure gun end does not touch drive rolls). Tighten knob. -
Page 19: Connecting Spoolmatic) 15A Or 30A Gun
3-8. Connecting Spoolmatic) 15A Or 30A Gun Tools Needed: 3/4, 5/8 in A complete Parts List is available at www.MillerWelds.com Gun Trigger Plug Insert plug into receptacle, and tighten threaded collar. Weld Cable Shielding Gas Hose Route weld cable and gas hose through opening in front panel. -
Page 20: Connecting Xr Edge, Xr-A Gun, Xr-A Python, Or Xr - Aluma-Pro
A complete Parts List is available at www.MillerWelds.com 3-9. Connecting XR Edge, XR-A Gun, XR-A Python, Or XR - Aluma-Pro Be sure to trim liner to proper extension. 3/32 in (2.4 mm) OM-1327 Page 16 XR Edge guns prior to serial no. LE079101 require an adapter cord (part no. -
Page 21: Setting Gun Polarity For Wire Type
3-10. Setting Gun Polarity For Wire Type Changing Polarity Wire Drive Assembly Lead Positive Terminal Shown as shipped − Electrode Positive (DCEP): For solid steel, stainless steel, aluminum, or flux core with gas wires (GMAW). Electrode Negative (DCEN): Reverse lead connections at terminals from that shown above for gasless flux core wires (FCAW). -
Page 22: Installing Gas Supply
A complete Parts List is available at www.MillerWelds.com 3-11. Installing Gas Supply Rear Panel Tools Needed: 1-1/8, 5/8 in OM-1327 Page 18 Argon Gas Or Mixed Gas Obtain gas cylinder and chain to running gear, wall, or other stationary support so cylinder cannot fall and break off valve. -
Page 23: Installing Wire Spool And Adjusting Hub Tension
3-12. Installing Wire Spool and Adjusting Hub Tension When a slight force is needed to turn spool, tension is set. 3-13. Electrical Service Guide Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda- tions are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source. -
Page 24: Selecting Input Voltage (200/230/460 Volt Models Only)
A complete Parts List is available at www.MillerWelds.com 3-14. Selecting Input Voltage (200/230/460 Volt Models Only) Be sure to reinstall all four screws securing relinking board in place. Tools Needed: 5/16 in OM-1327 Page 20 Turn Off welding power source, disconnect input power, and check voltage on input capacitors according Section... -
Page 25: Selecting A Location And Connecting 3-Phase Input Power
3-15. Selecting A Location And Connecting 3-Phase Input Power Do not move or operate unit where it could tip. 18 in (457 mm) for airflow Rear Panel Tools Needed: Installation must meet all National and Local Codes - have only qualified persons make this installation. -
Page 26: Selection A Location And Connecting 1-Phase Input Power
A complete Parts List is available at www.MillerWelds.com 3-16. Selection A Location And Connecting 1-Phase Input Power Do not move or operate unit where it could tip. 18 in (457 mm) for airflow Rear Panel Tools Needed: Installation must meet all National and Local Codes - have only qualified persons make this installation. -
Page 27: Threading Welding Wire For Mig Gun
3-17. Threading Welding Wire For MIG Gun Open pressure assembly. Tighten Close and tighten pressure assembly, and let go of wire. Press gun trigger until wire comes out of gun. Reinstall contact tip and nozzle A complete Parts List is available at www.MillerWelds.com Hold wire tightly to keep it from unraveling. -
Page 28: Threading Welding Wire For Xr Edge, Xr-A Gun, Xr-A Python, Or Xr - Aluma-Pro
A complete Parts List is available at www.MillerWelds.com 3-18. Threading Welding Wire For XR Edge, XR-A Gun, XR-A Python, Or XR - Aluma-Pro Open pressure assembly. Push wire thru guides into gun; continue to hold wire. See Section 3-19 for threading welding wire through XR guns. -
Page 29: Threading Welding Wire Through Xr Guns
3-19. Threading Welding Wire Through XR Guns For XR-A Edge Gun: Turn On Welding Power Source. For XR-A Pistol Gun: Turn On Welding Power Source. Remove barrel assembly before threading wire For XR-A Pistol Gun: Nonconductive Surface Feed wire to check drive roll pressure. Tighten knob enough to prevent slipping. -
Page 30: Section 4 − Operation
A complete Parts List is available at www.MillerWelds.com SECTION 4 − OPERATION 4-1. Controls Pulse Indicator Light Pulse only lights if unit has the pulse MIG module and is programmed for pulse MIG. MIG Indicator Lights Pulse (1) and MIG (2) illuminate to Indicate weld mode of unit. -
Page 31: Weld Status
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. -
Page 32: Weld Parameters For Mig Mode
A complete Parts List is available at www.MillerWelds.com 4-9. Weld Parameters For MIG Mode OM-1327 Page 28... -
Page 33: Weld Parameters For Pulse Mode
A complete Parts List is available at www.MillerWelds.com 4-10. Weld Parameters For Pulse Mode OM-1327 Page 29... -
Page 34: Section 5 − Programming
A complete Parts List is available at www.MillerWelds.com SECTION 5 − PROGRAMMING 5-1. MIG Welding Mode When the MIG light (2) is illuminated, the unit is in MIG Welding mode. SETUP To enter MIG welding mode, depress the SETUP (6) button once to go to GUN selection. -
Page 35: Pulse Mig Welding Mode
5-2. Pulse MIG Welding Mode When the PULSE MIG (1, 2) is illuminated, the unit is in Pulse MIG Welding mode. SETUP To enter Pulse MIG welding mode, depress the SETUP (6) button once to go to GUN selection. Rotate the right knob (9) to select the gun being used. -
Page 36: Timers
A complete Parts List is available at www.MillerWelds.com 5-3. Timers To enter the TIMERS (5) menu depress the SETUP (6) button 4 times or until the TIMERS light (5) is illuminated. Items that can be adjusted in this menu are: R-IN Run-in speed ( ) −... -
Page 37: Arc Times, Arc Starts, Hot Start (Aluminum Pulse Only), And Crater Fill
5-4. Arc Times, Arc Starts, Hot Start (Aluminum Pulse Only), And Crater Fill Arc times and number of arc starts are saved in unit memory. To view this information, press both SETUP (1) and ARC CONTROL (2) buttons at the same time. -
Page 38: Setting Hot Start (Aluminum Pulse Only) Parameters
A complete Parts List is available at www.MillerWelds.com 5-5. Setting Hot Start (Aluminum Pulse Only) Parameters To access the Setup Feature Menu, press both SETUP (1) and ARC CONTROL (2) buttons at the same time. Left display will initially show arc hours. ALST Rotate left knob (3) until appears in... -
Page 39: Setting Crater Fill
5-6. Setting Crater Fill To set Crater Fill, select a program and press SETUP (1) until the TIMERS LED turns on. Press SETUP again and the left CRTR display will show and the right display will show Rotate right knob (3) to turn crater Rotate left knob (2) to change display to , and rotate right knob (3) to set crater wire feed speed. -
Page 40: Recommended Crater Fill Parameters
5-7. Recommended Crater Fill Parameters Recommended Crater Parameters What Process What Material are You Using? are You Welding? OM-1327 Page 36 A complete Parts List is available at www.MillerWelds.com Suggested Suggested Wire Types Shielding Gases Wire Sizes (Diameter) 1/2" (12.7mm) -
Page 41: Mig And Pulse Setting Examples
A complete Parts List is available at www.MillerWelds.com 3/8" 1/4" 3/16" 1/8" 19ga. 20ga. (1.05mm) (0.9mm) SC-187 212-A OM-1327 Page 37... -
Page 42: System Reset
A complete Parts List is available at www.MillerWelds.com 5-8. System Reset Accessing the System Reset function will also allow access to Timer Reset ( and Option Reset ( for use by factory authorized service personnel only. Do not use the timer reset or option reset functions if they appear on the displays. A system reset function is available that completely resets unit back to all the original factory settings. -
Page 43: Motor Calibration Function
5-9. Motor Calibration Function Perform this function after replacing wire drive motor and/or control circuit board. motor calibration function automatically calibrates the wire drive motor to enhance arc starting performance and consistency. obtain most accurate calibration, set up welding power source in MIG welding mode. -
Page 44: Set Up Push Motor Torque (Sup) Or Reset (Res)
A complete Parts List is available at www.MillerWelds.com Welding wire birdnesting at the welding power source drive rolls may occur if this value is set too high. 5-10. Set Up Push Motor Torque (SUP) Or Reset (rES) Setup Button Left Knob Left Display Right Knob Right Display... -
Page 45: Section 6 − Maintenance &Troubleshooting
SECTION 6 − MAINTENANCE &TROUBLESHOOTING 6-1. Routine Maintenance n = Check Z = Change * To be done by Factory Authorized Service Agent Every Months l Damaged Or Unreadable l Repair Or Replace Labels Cracked Weld Cable Every Months Months ~ Inside Unit Clean Drive Rolls 6-2. -
Page 46: Measuring Input Capacitor Voltage
A complete Parts List is available at www.MillerWelds.com 6-3. Measuring Input Capacitor Voltage Tools Needed: 5/16 in OM-1327 Page 42 Significant DC voltage can remain on capacitors after unit is Off. Always check ca- pacitors as shown to be sure they have discharged before working on unit. -
Page 47: Changing Drive Roll And Wire Inlet Guide
6-4. Changing Drive Roll and Wire Inlet Guide .045 Groove .035 Groove Stamped Stamped .035 .045 Tools Needed: 5/64 in 7/16 in A complete Parts List is available at www.MillerWelds.com Securing Screw Inlet Wire Guide Loosen screw. Slide tip as close to drive rolls as possible without touching. -
Page 48: Help Displays
A complete Parts List is available at www.MillerWelds.com 6-5. Help Displays HELP HELP HELP HELP HELP HELP HELP HELP OM-1327 Page 44 HELP HELP HELP HELP SAVE 350P Displays a jog wire feed speed. - Page 49 Help 1 Turn off primary input power and check input voltage per primary voltage rating of welder, and correct if necessary. If HELP 1 persists, this Indicates a communication error between control board PC1 and user interface board.
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Page 50: Troubleshooting
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 3-15 or 3-16). Replace building line fuse or reset circuit breaker if open (see Section 3-15 or 3-16). Secure gun trigger connections (see Section 3-7). - Page 51 Notes OM-1327 Page 47...
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Page 52: Section 7 − Electrical Diagram
SECTION 7 − ELECTRICAL DIAGRAM Figure 7-1. Circuit Diagram For 200V/230V/460V Models OM-1327 Page 48... - Page 53 224 242-B OM-1327 Page 49...
- Page 54 Figure 7-2. Circuit Diagram For 460V/575V Models OM-1327 Page 50...
- Page 55 223 926-B OM-1327 Page 51...
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Page 56: Section 8 − Parts List
SECTION 8 − PARTS LIST 8-1. Drive Roll And Wire Guide Kits Base selection of drive rolls upon the following recommended usages: V-Grooved rolls for hard wire. U-Grooved rolls for soft and soft shelled cored wires. U-Cogged rolls for extremely soft shelled wires (usually hard surfacing types). V-Knurled rolls for hard shelled cored wires. - Page 57 Notes...
- Page 58 Notes...
- Page 59 Warranty Questions? LIMITED WARRANTY − Subject to the terms and conditions Call below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to 1-800-4-A-MILLER its original retail purchaser that new Miller equipment sold after the effective date of this limited warranty is free of defects in for your local material and workmanship at the time it is shipped by Miller.
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Page 60: Owner's Record
File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. 2007 Miller Electric Mfg. Co. 2007−01 Miller Electric Mfg. Co. An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA International Headquarters−USA...
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