Miller Electric Millermatic 350P Owner'S Manual Download Page 4

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TABLE OF CONTENTS

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6-3-4-3. Postflow

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6-3-4-4. Spot Timer

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6-3-4-5. Trigger Hold Delay

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6-3-4-6. Right Display Preferences

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6-3-5. Hot Start (Pulse Mode Only)

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6-3-5-1. Start Power

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6-3-5-2. Start Time

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6-3-5-3. Starting Arc Length

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6-3-5-4. Start Ramp Time

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6-3-6. Crater Fill

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6-3-6-1. Crater Select

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6-3-6-2. Crater Wire Feed Speed

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6-3-6-3. Crater Time

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6-3-6-4. Crater Arc Length Or Voltage

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6-4. MIG Mode

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6-5. Synergic MIG Mode

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6-6. Pulse MIG Mode

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6-7. Jog Mode

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6-8. Purge Mode

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6-9. Weld Display Status

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6-10. Trigger Hold Feature

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6-11. Trigger Hold Timing Chart

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6-12. Trigger Pulls That Will Not Actuate Trigger Hold

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6-13. Arc Control

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6-14. System Menu

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6-14-1. Arc Hours

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6-14-2. Arc Starts

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6-14-3. User Interface Software Version

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6-14-4. Control Software Version

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6-14-5. Gun Calibration

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6-14-6. Hot Start Enable (Pulse only)

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6-14-7. Crater Fill Enable

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6-14-8. Trigger Schedule Select

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6-15. Gun Calibration

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6-16. Trigger Schedule Select

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6-17. Hot Start (Pulse Mode Only)

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6-18. Crater Fill

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6-19. System Reset

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SECTION 7

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MAINTENANCE &TROUBLESHOOTING

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7-1. Routine Maintenance

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7-2. Overheating

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7-3. Ground Clamp And Gun Connections

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7-4. Feeder Drive Assembly Maintenance

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7-5. Replacing Hub Assembly

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7-6. Measuring And Discharging Input Capacitor Voltage

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7-7. Help And Information Displays

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7-8. Troubleshooting

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SECTION 8

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ELECTRICAL DIAGRAM

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SECTION 9

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PARTS LIST

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WARRANTY
COMPLETE PARTS LIST

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Available at www.MillerWelds.com

Summary of Contents for Millermatic 350P

Page 1: ...um Processes Description R Arc Welding Power Source and Wire Feeder OM 254915E 2020 09 MIG GMAW Welding Pulsed MIG GMAW P File MIG GMAW For product information Owner s Manual translations and more vis...

Page 2: ...roducts continue the tradition They re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929 This Owner s Manual is designed to he...

Page 3: ...ult Weld Parameters And Settings 11 4 4 Specifications 11 4 5 Duty Cycle And Overheating 12 4 6 Volt Ampere Curve 12 4 7 Millermatic 350P Aluminum Differences vs Standard Millermatic 350 350P 13 SECTI...

Page 4: ...er Hold 44 6 13 Arc Control 45 6 14 System Menu 46 6 14 1 Arc Hours 46 6 14 2 Arc Starts 46 6 14 3 User Interface Software Version 46 6 14 4 Control Software Version 46 6 14 5 Gun Calibration 46 6 14...

Page 5: ...low ing electrically hazardous conditions are present in damp locations or while wearing wet clothing on metal structures such as floors gratings or scaffolds when in cramped positions such as sitting...

Page 6: ...ot possible tightly cover them with approved covers D Do not weld where flying sparks can strike flammable material D Protect yourself and others from flying sparks and hot metal D Be alert that weldi...

Page 7: ...o move unit be sure forks are long enough to extend beyond opposite side of unit D Keep equipment cables and cords away from moving vehicles when working from an aerial location D Follow the guideline...

Page 8: ...uments Website www global ihs com National Electrical Code NFPA Standard 70 from National Fire Protection Association Website www nfpa org and www sparky org Safe Handling of Compressed Gases in Cylin...

Page 9: ...e n cessaire se servir de la fonction de t l commande si l appareil en est quip D D autres consignes de s curit sont n cessaires dans les condi tions suivantes risques lectriques dans un environnement...

Page 10: ...e La projection d tincelles des pi ces chaudes et des quipements chauds peut provoquer des incen dies et des br lures Le contact accidentel de l lectrode avec des objets m talliques peut provoquer des...

Page 11: ...ant de mettre l appareil en service LA CHUTE DE L QUIPEMENT peut provoquer des blessures D Utiliser l anneau de levage uniquement pour soulever l appareil NON PAS les chariots les bouteilles de gaz ou...

Page 12: ...te Website www ansi org Safe Practices for the Preparation of Containers and Piping for Welding and Cutting American Welding Society Standard AWS F4 1 from Glob al Engineering Documents Website www gl...

Page 13: ...ch input voltage at job site Double check all connections relinking board position and input voltage before applying power Safe97 2012 05 For single phase operation insulate and isolate red conductor...

Page 14: ...Positive Negative Voltage Input Arc Control Constant Voltage Purge By Gas Protective Earth Ground Increase Line Connection Gas Metal Arc Welding GMAW Three Phase Static Frequency Converter Transfo rm...

Page 15: ...ference purposes only and final weld results can be affected by other variables and application specific circumstances The appropriateness of all parameters and settings should be evaluated and modifi...

Page 16: ...or duty cycle before welding NOTICE Exceeding duty cycle can damage unit and void warranty Overheating 0 15 A or V OR Reduce Duty Cycle Minutes 60 Duty Cycle At 300 Amperes 40 Duty Cycle At 350 Ampere...

Page 17: ...characteristics of the gun and adjust its operation to provide the most ideal feeding scenario See Section 6 15 for more detailed information on Gun Calibration 5 SUP is gone The new torque motor elim...

Page 18: ...n may be required where gasoline or volatile liquids are present see NEC Article 511 or CEC Section 20 1 Line Disconnect Device 2 Running Gear Locate unit near correct input pow er supply Movement 1 1...

Page 19: ...mm2 100 4 20 4 20 4 20 3 30 2 35 1 50 1 0 60 1 0 60 150 3 30 3 30 2 35 1 50 1 0 60 2 0 70 3 0 95 3 0 95 200 3 30 2 35 1 50 1 0 60 2 0 70 3 0 95 4 0 120 4 0 120 250 2 35 1 50 1 0 60 2 0 70 3 0 95 4 0 1...

Page 20: ...terminal onto weld output terminal and secure with nut so that weld cable terminal is tight against copper bar Do not place anything between weld cable terminal and copper bar Make sure that the surf...

Page 21: ...to side panel with the previously removed screws Ref 803 545 D Ref 803 539 C 1 2 3 5 6 Installing Spool Gun Or Push Pull Gun See Sections 5 7 And 5 8 1 Drive Assembly 2 Gun Securing Knob 3 Gun End Lo...

Page 22: ...ded collar 2 Weld Cable 3 Shielding Gas Hose Route weld cable and gas hose through opening in front panel 4 Positive Weld Output Terminal Connect weld cable to weld output terminal 5 Regulator Flowmet...

Page 23: ...d 2 Gun Liner 3 Wire Outlet Guide Trim excess liner from end of gun so no more than 3 32 in 2 4 mm of liner extends past wire outlet guide Connect gun end to drive assembly see Section 5 6 Be sure to...

Page 24: ...alve Remove cap stand to side of valve and open valve slightly Gas flow blows dust and dirt from valve Close valve 3 Cylinder 4 Regulator Flowmeter Install so face is vertical 5 Regulator Flowmeter Ga...

Page 25: ...pring Optional For 8 Inch Spool Part No 057745 5 Retaining Ring Slide spool onto hub so wire feeds off top Turn spool until hub pin fits hole in back of spool notch on hub aligns with hub pin for guid...

Page 26: ...mum Recommended Supply Conductor Length In Feet Meters 4 96 29 81 25 217 66 85 26 111 34 172 53 Raceway Installation Minimum Supply Conductor Size In AWG mm2 5 6 16 8 10 10 6 10 6 10 6 14 2 5 Minimum...

Page 27: ...rranty 1 Voltage Selection View Window Check voltage selected in unit Changing selection is only neces sary if selected value does not match available input voltage 2 Relinking Board PC6 3 Mounting Sc...

Page 28: ...List is available at www MillerWelds com OM 254915 Page 24 5 13 Connecting 3 Phase Input Power input2 2012 05 Ref 803 766 C Ref 804653 B 803 766 A Tools Needed 2 1 Rear Panel GND PE Earth Ground 3 3 4...

Page 29: ...ief 2 Input Power Cord 3 Disconnect Device switch shown in the OFF position 4 Green Or Green Yellow Grounding Conductor 5 Disconnect Device Grounding Terminal 6 Input Conductors L1 L2 And L3 7 Disconn...

Page 30: ...s available at www MillerWelds com OM 254915 Page 26 5 14 Connecting 1 Phase Input Power input1 2012 05 Ref 803 766 C Ref 803 543 E 803 766 A Tools Needed Rear Panel GND PE Earth Ground 8 1 4 2 9 10 1...

Page 31: ...ut Conductor L1 And L2 3 Red Input Conductor 4 Green Or Green Yellow Grounding Conductor 5 Insulation Sleeving 6 Electrical Tape Insulate and isolate red conductor as shown 7 Input Power Cord 8 Discon...

Page 32: ...new drive roll idler and shoulder washers as shown Use wire brush to clean idler 7 Outlet Guide 8 Wire Inlet Guide Check inlet and outlet guides and replace if worn Pull inlet guide toward rear of fe...

Page 33: ...pressure assembly Install proper size drive rolls Pull and hold wire cut off end Push wire thru inlet guide along drive roll groove and into wire conduit continue to hold wire Remove gun nozzle and c...

Page 34: ...latch door Feed wire to check drive roll pressure Tighten knob enough to prevent slipping Do not exceed midrange setting Cut off wire Close and latch door Turn welding power source Off Nonconductive S...

Page 35: ...t off Preflow The amount of time that the shielding gas will flow after the trigger is pressed and before the welding arc will be allowed to be active Pulse MIG GMAW CC weld process with factory taugh...

Page 36: ...10 VOLTS Indicator Light 11 ARC LENGTH Indicator Light 12 Left Display 13 Left SETUP Indicator Light 14 WIRE SPEED Indicator Light 15 AMPS Indicator Light 16 Right Display 17 Right SETUP Indicator Li...

Page 37: ...15 Page 33 6 3 Setup Button 6 3 1 Gun Ref 242 929 C 1 1 Lit Indicators This menu allows the user to select a gun to configure such as Python Aluma Pro or XR A 1 6 3 2 Process Ref 242 929 C 1 Lit Indic...

Page 38: ...A complete Parts List is available at www MillerWelds com OM 254915 Page 34 6 3 3 Wire Ref 242 929 C 1 Lit Indicators This menu allows the user to select the wire alloy and diameter 1 1 1 1 Notes...

Page 39: ...adjust the amount of time that the shielding gas will flow after the arc has been extinguished This setting is in seconds 6 3 4 4 Spot Timer This menu allows the user to adjust the spot time The spot...

Page 40: ...t Power In this menu the user can adjust the percentage of weld power applied during the start period The start wire feed speed and all other pulse paramet ers are calculated to obtain the high heat i...

Page 41: ...n and off for a particular gun type i e spool gun vs push pull gun 6 3 6 2 Crater Wire Feed Speed This menu allows the user to adjust the wire feed speed used during crater The setting is in IPM 6 3 6...

Page 42: ...ht knob 9 to select wire size Depress SETUP 6 button again to illuminate TIMERS 5 light For description of the TIMERS refer to TIMERS menu see Section 6 3 4 If crater fill function menus are enabled T...

Page 43: ...acks up and down to keep these values in the ideal welding condition Additionally if the user desires more or less voltage it can be adjusted within a limited window The newly adjusted low or high vol...

Page 44: ...for adjust ment of crater parameters and timers see Section 6 18 Depress SETUP 6 button again to exit menus and enter PULSE welding mode OPERATION Arc length can be adjusted from 0 99 All Pulse MIG pr...

Page 45: ...ire by means of the gun trigger or the Jog Purge switch If an arc is not estab lished within three seconds of the trigger pull the machine will begin jogging wire Jogging can also be accomplished by p...

Page 46: ...9 Weld Display Status Before welding the Left and Right Displays will show Arc Length or Volts and Wire feed speed depending on weld process The indicator lights beneath each display will indicate wha...

Page 47: ...ust be held for the trigger hold to become active There is a built in maximum trigger hold time which the trigger must be released within for trigger hold to become active The maximum trigger hold tim...

Page 48: ...A complete Parts List is available at www MillerWelds com OM 254915 Page 44 6 12 Trigger Pulls That Will Not Actuate Trigger Hold...

Page 49: ...ance or sharp arc depending on welding process While MIG welding changing the inductance will change the fluidity of the puddle While Pulse welding changing the SharpArc will vary the width of the wel...

Page 50: ...Version This menu reports the software version of the Control Board CXXX XXXX 6 14 5 Gun Calibration This menu allows the user to run gun calibration See Section 6 15 for more information G CAL XXXX 6...

Page 51: ...and then at a higher speed The machine will display G CAL HOLD while the calibration is in progress When the calibration has successfully completed the display with read G CAL DONE for 2 seconds or un...

Page 52: ...gger to return to the main menu Now set the second weld paramet er or Schedule B Quickly pull and release pop the gun trigger to illu minate the Schedule B indicator located on the top left side of th...

Page 53: ...age of the welding power Rotate the right adjustment knob until the power level is as high as desired Rotating the left adjustment knob will take the user to the next menu labeled STMR This represents...

Page 54: ...to the next menu labeled WFS This represents the wire feed speed during the crater fill period Rotate the right adjust ment knob to select the desired wire feed speed Rotate the left adjustment knob...

Page 55: ...2 100 25 1 2 100 35 1 0 0 047 in 1 2 mm 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 0 75 20 1 0 5XXX 100 Ar 0 035 in 0 9 mm 120 30 1 75 120 30 1 5 120 30 1 5 120 30 1 0 120 30...

Page 56: ...Damaged Gas Hose l Cracked Or Damaged Cord Every 6 Months OR Inside Unit Clean Drive Rolls After Each Spool Of Wire Gun Liner When using a 16 lb spool of wire per day blow out gun liner after each spo...

Page 57: ...er Washers Use wire brush to clean idler 7 Outlet Guide 8 Wire Inlet Guide Pull guide toward rear of feeder to remove Install new guide Thread welding wire and adjust drive roll pressure if necessary...

Page 58: ...pool and remove spool Take hub apart as shown 1 Plastic Brake Washer 2 Fiber Washer 3 Brake Washer 4 Hub 5 Keyed Washer 6 Spring 7 Flat Washer 8 Cap Screw 9 Retaining Ring Replace broken or worn parts...

Page 59: ...ove case 1 Input Capacitor C3 Terminals 2 Input Capacitor C4 Terminals 3 Voltmeter Check input capacitors as shown Measure the dc voltage across the positive and negative terminals until voltage drops...

Page 60: ...t www MillerWelds com OM 254915 Page 56 7 7 Help And Information Displays A V A V A V HELP 0 A V A V A V A V HELP 1 HELP 2 HELP 3 HELP 4 A V HELP 6 A V HELP 7 G CAL ERR 1 G CAL ERR 2 A V JOG A V HELP...

Page 61: ...d or there is a direct short between contact tip or wire and the workpiece Release gun trigger and clear fault condition S Help 6 Indicates a malfunction in wire feed system and or external drive moto...

Page 62: ...nge to correct size drive rolls see Section 7 4 Readjust drive roll pressure see Section 5 16 Replace inlet guide contact tip and or liner if necessary see gun Owner s Manual Have Factory Authorized S...

Page 63: ...OM 254915 Page 59 Notes...

Page 64: ...OM 254915 Page 60 SECTION 8 ELECTRICAL DIAGRAM Figure 8 1 Circuit Diagram For Welding Power Source...

Page 65: ...OM 254915 Page 61 255730 J...

Page 66: ...mal Metric 030 035 in 030 035 in 0 8 09 196 301 058 549 040 in 040 in 1 0 mm 194 118 058 549 3 64 in 047 in 1 2 mm 194 119 058 549 To maintain the factory original performance of your equipment use on...

Page 67: ...SAR Boxes and Panels TIG Torches No Labor Tregaskiss Guns No Labor Water Cooling Systems Wireless Remote Foot Hand Controls and Receivers Work Stations Weld Tables No Labor 5 6 Months Parts Batteries...

Page 68: ...ersonal records Always provide Model Name and Serial Style Number Contact a DISTRIBUTOR or SERVICE AGENCY near you Welding Supplies and Consumables Options and Accessories Personal Protective Equipmen...

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