Miller XMT 350 Owner's Manual
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Miller XMT 350 Owner's Manual

Fieldpro with auto-line and arcreach
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OM-278618C
2017−08
Processes
Multiprocess Welding
Description
Arc Welding Power Source
R
™
XMT 350 FieldPro
™
With Auto-Line
R
And ArcReach
File: MULTIPROCESS
For product information,
Owner's Manual translations,
and more, visit
www.MillerWelds.com

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  • Page 1 OM-278618C 2017−08 Processes Multiprocess Welding Description Arc Welding Power Source ™ XMT 350 FieldPro ™ With Auto-Line And ArcReach File: MULTIPROCESS For product information, Owner’s Manual translations, and more, visit www.MillerWelds.com...
  • Page 2 We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING ....... . . 1-1.
  • Page 4 TABLE OF CONTENTS SECTION 8 − GMAW/FCAW OPERATION ............8-1.

  • Page 5: Section 1 − Safety Precautions - Read Before Using

    SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som 2015−09 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions.
  • Page 6 D Remove stick electrode from holder or cut off welding wire at FUMES AND GASES can be hazardous. contact tip when not in use. D Wear body protection made from durable, flame−resistant material Welding produces fumes and gases. Breathing (leather, heavy cotton, wool). Body protection includes oil-free these fumes and gases can be hazardous to your clothing such as leather gloves, heavy shirt, cuffless trousers, high health.

  • Page 7: Additional Symbols For Installation, Operation, And Maintenance

    1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can injure. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards D Do not install unit near flammables.

  • Page 8: California Proposition 65 Warnings

    1-4. California Proposition 65 Warnings Welding or cutting equipment produces fumes or gases This product contains chemicals, including lead, known to which contain chemicals known to the State of California to the state of California to cause cancer, birth defects, or other cause birth defects and, in some cases, cancer.

  • Page 9: Section 2 − Consignes De Sécurité − Lire Avant Utilisation

    SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION fre_som_2015−09 Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives aux précautions de sécurité et au mode opératoire. 2-1.
  • Page 10 chauffement ou un incendie. Avant de commencer le soudage, vérifier LES PIÈCES CHAUDES peuvent et s’assurer que l’endroit ne présente pas de danger. provoquer des brûlures. D Déplacer toutes les substances inflammables à une distance de D Ne pas toucher à mains nues les parties chaudes. 10,7 m de l’arc de soudage.

  • Page 11: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    D Placer les bouteilles debout en les fixant dans un support station- déroule du soudage à l’arc, du soudage par points, du gougeage, de la découpe plasma ou une opération de chauffage par naire ou dans un porte-bouteilles pour les empêcher de tomber ou induction.

  • Page 12: Proposition Californienne 65 Avertissements

    D N’utiliser que les pièces de rechange recommandées par le LE SOUDAGE À L’ARC risque de constructeur. provoquer des interférences. D Effectuer l’installation, l’entretien et toute intervention selon les manuels d’utilisateurs, les normes nationales, provinciales et de D L’énergie électromagnétique risque l’industrie, ainsi que les codes municipaux.

  • Page 13: Section 3 − Definitions

    SECTION 3 − DEFINITIONS 3-1. Additional Safety Symbols And Definitions Some symbols are found only on CE products. Warning! Watch Out! There are possible hazards as shown by the symbols. Safe1 2012−05 Do not discard product (where applicable) with general waste. Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection facility.
  • Page 14 Welding sparks can cause fires. Have a fire extinguisher nearby, and have a watchperson ready to use it. Safe14 2012−05 Do not weld on drums or any closed containers. Safe16 2017−04 Do not remove or paint over (cover) the label. Safe20 2017−04 Flying pieces of parts can cause injury.

  • Page 15: Miscellaneous Symbols And Definitions

    3-2. Miscellaneous Symbols And Definitions Amperage Three Phase Percent Negative Voltage Output Single Phase Variable Positive Inductance Gas Metal Arc Arc Force Remote Welding (GMAW) (DIG) Flux Cored Arc Flux Cored Arc Input Voltage Welding - Self Welding (FCAW) Shielded (FCAW-S) Shielded Metal Line Connection...

  • Page 16: Section 4 − Specifications

    SECTION 4 − SPECIFICATIONS 4-1. Features And Benefits LVCt Line Voltage Compensation is circuitry that keeps the power source output constant regardless of input pow- er fluctuation. Wind Tunnel Technologyt circulates air over components that require cooling, not over electronic circuitry, which reduces contaminants and improves reliability in harsh welding environments.

  • Page 17: Dimensions And Weight

    4-5. Dimensions And Weight Hole Layout Dimensions 12-7/8 in. (327 mm) 24 in. (610 mm) 4-11/16 in. (119 mm) 17 in. (432 mm) 15-3/4 in. (400 mm) 22-3/32 in. (561 mm) 12-1/2 in. (318 mm) 8-11/16 in. (221 mm) 1-17/32 in. (39 mm) 278579-A 278673-A 1-11/16 in.

  • Page 18: Duty Cycle And Overheating

    4-7. Duty Cycle And Overheating Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating. If unit overheats, output stops, a Help message is dis- played and cooling fan runs. Wait fifteen minutes for unit to cool.

  • Page 19: Volt-Ampere Curves

    4-8. Volt-Ampere Curves Volt-ampere curves show minimum A. CC Mode and maximum voltage and amper- age output capabilities of welding power source. Curves of other set- tings fall between curves shown. SMAW GTAW SMAW GTAW CONTROL 100% AMPERAGE B. CV Mode 5 00 AMPERAGE 217 836-A / 217 837-B...

  • Page 20: Section 5 − Installation

    SECTION 5 − INSTALLATION 5-1. Selecting A Location Movement Do not move or operate unit where it could tip. Location And Airflow Special installation may be required where gasoline or volatile liquids are present − see NEC Article 511 or CEC Section 20.

  • Page 21: Selecting Cable Sizes

    **Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. ( ) = mm for metric use ***For distances longer than those shown in this guide, call a factory applications rep. at 920-735-4505 (Miller) or 1-800-332-3281 (Hobart). Ref. S-0007-L 2015−02 5-3. Weld Output Terminals Turn off power before connecting to weld output terminals.

  • Page 22: Remote 14 Receptacle Information

    5-4. Remote 14 Receptacle Information Socket* Socket Information 24 volts AC. Protected by supplementary protect- or CB2. 24 VOLTS AC Contact closure to A completes 24 volts AC C L N contactor control circuit. Output to remote control; 0 to +10 volts DC, +10 volts DC in MIG mode.

  • Page 23: Optional Gas Valve Operation And Shielding Gas Connection

    5-6. Optional Gas Valve Operation And Shielding Gas Connection Obtain gas cylinder and chain to running gear, wall, or other station- ary support so cylinder cannot fall and break off valve. Cylinder Regulator/Flowmeter Install so face is vertical. Gas Hose Connection Fitting has 5/8-18 right-hand...

  • Page 24: Electrical Service Guide

    5-7. Electrical Service Guide Elec Serv 2017-01 NOTICE − INCORRECT INPUT POWER can damage this welding power source. This welding power source requires a CONTINUOUS supply of input power at rated frequency(+10%) and voltage (+10%). Phase to ground voltage shall not exceed +10% of rated input voltage. Do not use a genera- tor with automatic idle device (that idles engine when no load is sensed) to supply input power to this welding power source.
  • Page 25 Notes OM-278618 Page 21...

  • Page 26: Connecting 1-Phase Input Power

    5-8. Connecting 1-Phase Input Power =GND/PE Earth Ground Tools Needed: Input1 2012−05 − Ref. 803766-C / 278673-A OM-278618 Page 22...
  • Page 27 5-8. Connecting 1-Phase Input Power (Continued) nected to any input power between 208 and Disconnect Device (switch shown in the Installation must meet all National and 575 VAC without removing cover to relink the OFF position) Local Codes − have only qualified per- power source.

  • Page 28: Connecting 3-Phase Input Power

    5-9. Connecting 3-Phase Input Power = GND/PE Earth Ground Tools Needed: input2 2012−05 − Ref. 803766-C / 278673-A OM-278618 Page 24...
  • Page 29 5-9. Connecting 3-Phase Input Power (Continued) voltage available at site. This unit can be con- Input Conductors (L1, L2 And L3) Installation must meet all National and nected to any input power between 208 and Local Codes − have only qualified per- Disconnect Device Line Terminals 575 VAC without removing cover to relink the sons make this installation.

  • Page 30: Section 6 − Operation

    SECTION 6 − OPERATION 6-1. Front Panel Controls Ref. 278547-A / Ref. 278649-A values after arc initiation and remains dis- 10 Arc Control Stiff Indicator Weld process operation sections de- played for approximately three seconds 11 Arc Control Soft Indicator scribe functionality of the identified items after the arc is broken.

  • Page 31: Mode Switch Settings

    6-2. Mode Switch Settings Remote 14 Switch Position Process Output Control Panel Adjust ArcReach Adjust Adjust GMAW WIRE − Gas Remote 14 Volts Volts − − FCAW GMAW WIRE − Gas (1) Electrode Hot Volts Volts Volts FCAW WIRE - No Gas (1) FCAW-S Electrode Hot Volts...

  • Page 32: Section 7 − Gtaw Operation

    SECTION 7 − GTAW OPERATION 7-1. Typical Connection For GTAW Process 278669-A Remote 14 Receptacle Gas Out Connection (Optional) Turn off power before making con- nections. Connect desired remote control to Remote Negative (−) Weld Output Terminal 14 receptacle if required. Foot Control TIG Torch Gas In Connection (Optional)

  • Page 33: Typical Connection For Arcreach Stick/Tig Remote (Gtaw Process)

    7-2. Typical Connection For ArcReach Stick/TIG Remote (GTAW Process) Ref. 280219-A mode. The electrode negative (TIG) in- Voltage Sensing Lead Turn Off welding power source be- dicator on the remote will be lit. fore making any input or output Attach voltage sensing lead clamp to weld cable connections.

  • Page 34: Lift-Arc Tig Welding Mode - Gtaw Lift-Arc - Output On

    7-3. Lift-Arc TIG Welding Mode - GTAW Lift-Arc - Output On 278547-A 1 − 2 “Touch” Seconds Do NOT Strike Like A Match! Set Mode Switch to GTAW LIFT-ARC posi- Weld terminals are energized at all If an ArcReach device is used for am- tion.

  • Page 35: Tig Welding Mode - Gtaw - Remote On/Off

    7-4. TIG Welding Mode - GTAW - Remote ON/OFF 278547-A Setup Operation Weld terminals energized through the remote control in TIG The Adjust Control is used to set desired For typical system connections refer to welding mode. preset amperage. Section 7-1. A remote control is required to turn on the Mode Switch weld output.

  • Page 36: Section 8 − Gmaw/Fcaw Operation

    SECTION 8 − GMAW/FCAW OPERATION 8-1. Typical Connection For Remote Control Feeder GMAW/FCAW Process 278670-A Workpiece Use of shielding gas is dependant on Wire Turn off power before making Type. connections. Remote 14-Receptacle The connection diagram illustrates Wire Feeder DCEP (reverse polarity) suitable for all Positive (+) Weld Output Terminal wires except self-shielded FCAW-S.

  • Page 37: Mig Welding Mode - Gmaw/Fcaw Remote On/Off

    8-2. MIG Welding Mode - GMAW/FCAW Remote ON/OFF 2 5.0 278547-A Set Mode Switch to GMAW/FCAW GAS, Arc Control Weld terminals energized REMOTE ON/OFF position. through the remote control in this Pressing the Arc Control button will cause mode. The preset voltage is shown in the Left Dis- the Arc Control Indicator to light.

  • Page 38: Typical Connection For Voltage-Sensing Feeder Gmaw/Fcaw, Fcaw-S Process

    8-3. Typical Connection For Voltage-Sensing Feeder GMAW/FCAW, FCAW-S Process 278671-A Use of shielding gas is dependant on Wire Turn off power before making con- Type. nections. Gun Trigger Receptacle Positive (+) Weld Output Terminal The connection diagram illustrates Negative (−) Weld Output Terminal Wire Feeder DCEP (reverse polarity) suitable for all Ground Cable to Workpiece...

  • Page 39: V-Sense Feeder Welding Modes - Gmaw/Fcaw, Fcaw-S Output On

    8-4. V-Sense Feeder Welding Modes - GMAW/FCAW, FCAW-S Output ON 278547-A with Cable Length Compensation the Weld terminals are energized at all If using an ArcReach feeder capable of voltage display on the power source times in these modes. communication while welding, the volt- will show ACC.

  • Page 40: Section 9 − Smaw/Cac-A Operation

    SECTION 9 − SMAW/CAC-A OPERATION 9-1. Typical Connection For SMAW And CAC-A Process 278672-A cutting torch to to positive weld output ter- Connect desired remote control to remote Turn off power before making con- minal. 14 receptacle as required. nections. Electrode Holder Compressed Air LIne Electrode Holder...

  • Page 41: Typical Connection For Arcreach Stick/Tig Remote (Smaw And Cac-A Process)

    9-2. Typical Connection For ArcReach Stick/TIG Remote (SMAW And CAC-A Process) Ref. 280218-A (Stick) indicator on the remote will be Attach voltage sensing lead clamp to Turn Off welding power source be- lit. workpiece. fore making any input or output weld cable connections.

  • Page 42: Stick Welding Modes - Smaw Exx18, Smaw Exx10, Cac-A Gouge - Output On

    9-3. Stick Welding Modes - SMAW EXX18, SMAW EXX10, CAC-A Gouge - Output ON 278547-A Hot Start settings. Right Display. If set to 0 neither STIF or Weld terminals are energized at all SOFT will appear. times in this mode. If a remote control is connected to the Rotate Adjust Control to select desired Arc Mode Switch...

  • Page 43: Low Open Circuit Voltage (Ocv)

    9-4. Low Open Circuit Voltage (OCV) Low OCV Operation The unit is configured at the factory for low open circuit voltage (OCV) operation in OUTPUT ON: Wire, Stick, Lift-Arc TIG modes. The OUTPUT ON: Wire modes will always operate as low OCV operation even if configured for normal OCV. 9-5.

  • Page 44: Section 10 − Maintenance & Troubleshooting

    SECTION 10 − MAINTENANCE & TROUBLESHOOTING 10-1. Routine Maintenance Disconnect power Maintain more often during before maintaining. severe conditions. n = Check Z = Change ~ = Clean l = Replace Every Replace Months Damaged Replace Cracked Torch Body Unreadable n Z l Labels Repair Or Replace...

  • Page 45: Help Displays

    10-3. Help Displays All directions are in reference to the front HELP of the unit. All circuitry referred to is lo- cated inside the unit. HELP Help 1, 6, 7 Display HELP Indicates a malfunction in the primary power circuit. If this display is shown, contact a Fac- tory Authorized Service Agent.

  • Page 46: Troubleshooting

    10-4. Troubleshooting Trouble Remedy No weld output; unit completely inop- Place line disconnect switch in On position (see Sections 5-8 and 5-9). erative. Check and replace line fuse(s), if necessary, or reset circuit breaker (see Sections 5-8 and 5-9). Check for proper input power connections (see Sections 5-8 and 5-9). No weld output;...
  • Page 47 Notes OM-278618 Page 43...

  • Page 48: Section 11 − Electrical Diagram

    SECTION 11 − ELECTRICAL DIAGRAM Figure 11-1. Circuit Diagram OM-278618 Page 44...
  • Page 49 278576-A OM-278618 Page 45...

  • Page 50: Section 12 − Parts List

    SECTION 12 − PARTS LIST Ref. 278972-C Figure 12-1. Parts Assembly OM-278618 Page 46...
  • Page 51 ..... . 119503 ..Label, Miller 9.925X4.125 Horizontal (Not Shown) ....
  • Page 52 ..280231 Circuit Card Assy, Display XMT 350 FieldPro ....... .
  • Page 53 Item Dia. Part Mkgs. Description Quantity Figure 12-1. Parts Assembly (Continued) ....227746 Gasket, Inductor Mounting ........

  • Page 54: Section 13 − Open Source License Notices

    SECTION 13 − OPEN SOURCE LICENSE NOTICES For ST Liberty License (STM32 Cube, ST USB Host, ST USB Device, ST FATFS, ST CMSIS): CopyrightE 2014, 2015 STMicroelectronics International N.V. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted, provided that the following conditions are met: Redistribution of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  • Page 55 Notes Start Your Professional Over 80,000 trained 400 Trade Square East, Troy, Ohio 45373 Welding Career Now! since 1930! 1-800-332-9448 www.welding.org...
  • Page 56 Contact the Delivering Carrier to: 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. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2017 Miller Electric Mfg. Co. 2017−01...

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