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Effective January 1, 2017

(Equipment with a serial number preface of MH or newer)

This limited warranty supersedes all previous Miller warranties and is exclusive with no other

guarantees or warranties expressed or implied.

LIMITED WARRANTY − Subject to the terms and conditions below,
Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to its original
retail purchaser that new Miller equipment sold after the effective date of
this limited warranty is free of defects in material and workmanship at
the time it is shipped by Miller. THIS WARRANTY IS EXPRESSLY IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND
FITNESS.

Within the warranty periods listed below, Miller will repair or replace any
warranted parts or components that fail due to such defects in material
or workmanship. Miller must be notified in writing within thirty (30) days
of such defect or failure, at which time Miller will provide instructions on
the warranty claim procedures to be followed. If notification is submitted
as an online warranty claim, the claim must include a detailed
description of the fault and the troubleshooting steps taken to identify
failed components and the cause of their failure.

Miller shall honor warranty claims on warranted equipment listed below
in the event of such a failure within the warranty time periods. All
warranty time periods start on the delivery date of the equipment to the
original end-user purchaser, and not to exceed twelve months after the
equipment is shipped to a North American distributor or eighteen
months after the equipment is shipped to an International distributor.

1.

5 Years Parts — 3 Years Labor
*

Original Main Power Rectifiers Only to Include SCRs,
Diodes, and Discrete Rectifier Modules

2.

3 Years — Parts and Labor
*

Auto-Darkening  Helmet Lenses (Except Classic
Series) (No Labor)

*

Engine Driven Welder/Generators
(NOTE: Engines are Warranted Separately by the
Engine Manufacturer.)

*

Inverter Power Sources (Unless Otherwise Stated)

*

Plasma Arc Cutting Power Sources

*

Process Controllers

*

Semi-Automatic and Automatic Wire Feeders

*

Transformer/Rectifier Power Sources

3.

2 Years — Parts and Labor
*

Auto-Darkening Helmet Lenses − Classic Series Only
(No Labor)

*

Fume Extractors − Capture 5, Filtair 400 and Industrial
Collector Series

4.

1 Year — Parts and Labor Unless Specified
*

AugmentedArc and LiveArc Welding Systems

*

Automatic Motion Devices

*

Bernard BTB Air-Cooled MIG Guns (No Labor)

*

CoolBelt and CoolBand Blower Unit (No Labor)

*

Desiccant Air Dryer System

*

External Monitoring Equipment and Sensors

*

Field Options
(NOTE: Field options are covered for the remaining
warranty period of the product they are installed in,
or for a minimum of one year — whichever is
greater.)

*

RFCS Foot Controls (Except RFCS-RJ45)

*

Fume Extractors − Filtair 130, MWX and SWX Series

*

HF Units

*

ICE/XT Plasma Cutting Torches (No Labor)

*

Induction Heating Power Sources, Coolers
(NOTE: Digital Recorders are Warranted
Separately by the Manufacturer.)

*

Load Banks

*

Motor-Driven Guns (except Spoolmate Spoolguns)

*

PAPR Blower Unit (No Labor)

*

Positioners and Controllers

*

Racks

*

Running Gear/Trailers

*

Spot Welders

*

Subarc Wire Drive Assemblies

*

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

6.

90 Days — Parts
*

Accessory (Kits)

*

Canvas Covers

*

Induction Heating Coils and Blankets, Cables, and
Non-Electronic Controls

*

M-Guns

*

MIG Guns, Subarc (SAW) Torches, and External
Cladding Heads

*

Remote Controls and RFCS-RJ45

*

Replacement Parts (No labor)

*

Spoolmate Spoolguns

Miller’s True Blue

®

 Limited Warranty shall not apply to:

1.

Consumable components; such as contact tips,
cutting nozzles, contactors, brushes, relays, work
station table tops and welding curtains, or parts that
fail due to normal wear. (Exception: brushes and
relays are covered on all engine-driven products.)

2.

Items furnished by Miller, but manufactured by others,
such as engines or trade accessories. These items are
covered by the manufacturer’s warranty, if any.

3.

Equipment that has been modified by any party other than
Miller, or equipment that has been improperly installed,
improperly operated or misused based upon industry
standards, or equipment which has not had reasonable
and necessary maintenance, or equipment which has
been used for operation outside of the specifications for
the equipment.

MILLER PRODUCTS ARE INTENDED FOR PURCHASE AND
USE BY COMMERCIAL/INDUSTRIAL USERS AND PERSONS
TRAINED AND EXPERIENCED IN THE USE AND
MAINTENANCE OF WELDING EQUIPMENT.

In the event of a warranty claim covered by this warranty, the
exclusive remedies shall be, at Miller’s option: (1) repair; or (2)
replacement; or, where authorized in writing by Miller in appropriate
cases, (3) the reasonable cost of repair or replacement at an
authorized Miller service station; or (4) payment of or credit for the
purchase price (less reasonable depreciation based upon actual
use) upon return of the goods at customer’s risk and expense.
Miller’s option of repair or replacement will be F.O.B., Factory at
Appleton, Wisconsin, or F.O.B. at a Miller authorized service facility
as determined by Miller. Therefore no compensation or
reimbursement for transportation costs of any kind will be allowed.

TO THE EXTENT PERMITTED BY LAW, THE REMEDIES
PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF PROFIT),
WHETHER BASED ON CONTRACT, TORT OR ANY OTHER
LEGAL THEORY.

ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND ANY
IMPLIED WARRANTY, GUARANTY OR REPRESENTATION AS
TO PERFORMANCE, AND ANY REMEDY FOR BREACH OF
CONTRACT TORT OR ANY OTHER LEGAL THEORY WHICH,
BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICATION,
OPERATION OF LAW, CUSTOM OF TRADE OR COURSE OF
DEALING, INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT
FURNISHED BY MILLER IS EXCLUDED AND DISCLAIMED BY
MILLER.

Some states in the U.S.A. do not allow limitations of how long an
implied warranty lasts, or the exclusion of incidental, indirect,
special or consequential damages, so the above limitation or
exclusion may not apply to you. This warranty provides specific
legal rights, and other rights may be available, but may vary from
state to state.

In Canada, legislation in some provinces provides for certain
additional warranties or remedies other than as stated herein, and
to the extent that they may not be waived, the limitations and
exclusions set out above may not apply. This Limited Warranty
provides specific legal rights, and other rights may be available, but
may vary from province to province.

Warranty Questions?

Call
1-800-4-A-MILLER
for your local
Miller distributor.

miller_warr 2017-01

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there to help you, every
step of the way.

Summary of Contents for XMT350 CC/CV Auto-Line CE

Page 1: ...Power Source XMT 350 CC CV OM 2254 219485AH 2017 03 Processes Description Multiprocess Welding File MULTIPROCESS Auto Line CE For product information Owner s Manual translations and more visit www Mil...

Page 2: ...ntinue 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 help you get...

Page 3: ...cations 12 4 5 Duty Cycle And Overheating 14 4 6 Volt Ampere Curves 15 SECTION 5 INSTALLATION 16 5 1 Selecting A Location 16 5 2 Selecting Cable Sizes 17 5 3 Weld Output Terminals 17 5 4 Remote 14 Rec...

Page 4: ...SMAW CAC A Process 38 9 4 Optional Low Open Circuit Voltage OCV Welding Modes 39 9 5 Alternate Configuration Functions 39 SECTION 10 MAINTENANCE TROUBLESHOOTING 40 10 1 Routine Maintenance 40 10 2 Bl...

Page 5: ...W AUX POWER CE 907161012 Council Directives 2014 35 EU Low voltage 2014 30 EU Electromagnetic compatibility 2011 65 EU Restriction of the use of certain hazardous substances in electrical and electron...

Page 6: ...changed Data is based on multiple settings programs only valid until setting options welding programs are changed Occupational exposure is below the Exposure Limit Values ELVs YES NO for health effect...

Page 7: ...ch as sitting kneeling or lying or when there is a high risk of unavoid able or accidental contact with the workpiece or ground For these conditions use the following equipment in order presented 1 a...

Page 8: ...erly prepared according to AWS F4 1 and AWS A6 0 see Safety Standards Do not weld where the atmosphere can contain flammable dust gas or liquid vapors such as gasoline Connect work cable to the work a...

Page 9: ...an injure Keep away from moving parts such as fans Keep all doors panels covers and guards closed and securely in place Have only qualified persons remove doors panels covers or guards for maintenance...

Page 10: ...A Standard 51B from National Fire Protection Association Quincy MA 02269 phone 1 800 344 3555 website www nfpa org OSHA Occupational Safety and Health Standards for General Indus try Title 29 Code of...

Page 11: ...es lectriques dans un environnement humideou si l on porte des v tements mouill s sur des structures m talliquestelles que sols grilles ou chafaudages en position coinc e comme assise genoux ou couch...

Page 12: ...s et des br lures Le contact accidentel de l lectrode avec des objets m talliques peut provoquer des tincelles une explosion un sur chauffement ou un incendie Avant de commencer le soudage v rifier et...

Page 13: ...appareil Tenir l quipement c bles et cordons distance des v hicules mobiles lors de toute op ration en hauteur Suivre les consignes du Manuel des applications pour l quation de levage NIOSH r vis e Pu...

Page 14: ...rical Code NFPA Standard 70 from National Fire Protec tion Association Quincy MA 02269 phone 1 800 344 3555 website www nfpa org and www sparky org Safe Handling of Compressed Gases in Cylinders CGA P...

Page 15: ...stributor for further information Safe37 2012 05 Wear dry insulating gloves Do not touch electrode with bare hand Do not wear wet or damaged gloves Safe2 2012 05 Protect yourself from electric shock b...

Page 16: ...ing unit Safe28 2012 05 After taking proper precautions as shown connect power to unit Safe29 2012 05 Do not use one handle to lift or support unit Safe31 2012 05 EnvironmentalProtection Use Period Ch...

Page 17: ...Panel Alternating Current AC V Voltage On Voltage Input Protective Earth Ground Line Connection Three Phase Static Frequency Converter Transformer Rectifier X Duty Cycle Percent Three Phase Lift Arc O...

Page 18: ...in CC Mode Max Open Circuit Voltage RMS Amps Input at Rated Load Output 50 60 Hz 3 Phase at NEMA Load Volt ages and Class I Rating KVA KW 230 V 380 V 400 V 460 V 3 Phase 350 A at 34 VDC 60 Duty Cycle...

Page 19: ...tion with the distribution network operator if necessary that the system impedance complies with the impedance restrictions ce emc 1 2014 07 D China EEP Hazardous Substance Information China EEP Hazar...

Page 20: ...unit overheats output stops a Help message is displayed and cooling fan runs Wait fifteen min utes for unit to cool Reduce amper age or voltage or duty cycle before welding NOTICE Exceeding duty cycle...

Page 21: ...mum voltage and amper age output capabilities of welding power source Curves of other set tings fall between curves shown 0 10 20 30 40 50 60 70 80 90 100 0 100 200 300 400 500 50 75 100 25 0 AMPERAGE...

Page 22: ...or CEC Section 20 1 Lifting Forks Extend forks beyond opposite side of unit 2 Lifting Handles Use handles to lift unit 3 Hand Cart Use cart or similar device to move unit 4 Line Disconnect Device Loca...

Page 23: ...2 0 70 3 0 95 4 0 120 2x2 0 2x70 2x3 0 2x95 2x3 0 2x95 350 1 0 60 2 0 70 3 0 95 4 0 120 2x2 0 2x70 2x3 0 2x95 2x3 0 2x95 2x4 0 2x120 400 1 0 60 2 0 70 3 0 95 4 0 120 2x2 0 2x70 2x3 0 2x95 2x4 0 2x120...

Page 24: ...E 0 to 10 volts DC input command signal from remote control M CC CV select A V AMPERAGE VOLTAGE F Current feedback 1 volt DC per 100 weld am peres H Voltage feedback 1 volt DC per 10 weld volts GND G...

Page 25: ...regulator flowmeter to Gas In fitting Connect hose coupler to torch Connect one end of gas hose to hose coupler Connect remaining end of gas hose to Gas Out fitting Operation The gas solenoid control...

Page 26: ...21 630 11 and 630 12 50 60 Hz Three Phase Input Voltage V 230 380 400 460 Rated Maximum Supply Current I1max A 46 5 27 6 26 3 22 6 Maximum Effective Supply Current I1eff A 28 2 16 9 16 0 13 7 Max Rec...

Page 27: ...A complete Parts List is available at www MillerWelds com OM 2254 Page 21 Notes...

Page 28: ...arts List is available at www MillerWelds com OM 2254 Page 22 5 8 Connecting 3 Phase Input Power Input2 2012 05 Ref 803 766 C Ref 802 136 A Ref 803 879 B Tools Needed 1 GND PE Earth Ground L1 2 1 L2 L...

Page 29: ...without removing cover to relink the power source See rating label on unit and check input volt age available at site For Three Phase Operation 1 Input Power Cord 2 Disconnect Device switch shown in t...

Page 30: ...Stick or CC mode is selected on mode switch When set towards minimum short circuit amperage at low arc voltage is the same as normal welding amperage When set towards maximum short circuit amperage is...

Page 31: ...Amps Panel Amps Lift Arc TIG GTAW Electrode Hot Amps Panel Amps TIG GTAW Remote 14 Amps Panel Amps MIG GMAW Remote 14 Volts Volts Pulsed MIG GMAW P Remote 14 N A Arc Length 0 100 CC SMAW CAC A Remote...

Page 32: ...s 264 339 A Turn off power before making con nections 1 Foot Control 2 Positive Weld Output Terminal 3 Remote 14 Receptacle Connect desired remote control to Remote 14 receptacle if required 4 Gas In...

Page 33: ...o SCRATCH START TIG position as shown The open circuit voltage is shown in the Left Display Preset amperage is shown in the Right Display Operation The Adjust Control is used to set desired preset amp...

Page 34: ...set desired preset amperage A remote control is required to turn on the weld output To start welding momentarily depress out put switch Touch tungsten electrode to workpiece at weld start point Slowly...

Page 35: ...to TIG position as shown The preset amperage is shown in the Right Display Operation The Adjust Control is used to set desired preset amperage A remote control is required to turn on the weld output I...

Page 36: ...ons 1 Remote 14 Receptacle 2 Positive Weld Output Terminal 3 Negative Weld Output Terminal 4 Ground Cable to Workpiece 5 Workpiece 6 Gun 7 Wire Feeder 8 Gas Hose 9 Gas Cylinder Use of shielding gas is...

Page 37: ...is shown in the Left Dis play Operation The Adjust Control is used to set desired preset voltage The preset voltage can be adjusted re motely at the wire feeder if the feeder has a voltage control Th...

Page 38: ...e Weld Output Terminal 4 Negative Weld Output Terminal 5 Ground Cable to Workpiece 6 Workpiece 7 Gun 8 Wire Feeder 9 Gas Hose 10 Gas Cylinder Use of shielding gas is dependant on Wire Type The connect...

Page 39: ...elding mode 1 Mode Switch 2 Left Display 3 Right Display 4 Adjust Control Setup For typical system connections refer to Section 8 3 Rotate Mode Switch to PULSED MIG posi tion as shown Left and Right D...

Page 40: ...rminal 2 Negative Weld Output Terminal 3 Ground Cable to Workpiece 4 Workpiece 5 Voltage Sensing Clamp 6 Gun 7 Gun Trigger Receptacle 8 Wire Feeder 9 Gas Hose 10 Gas Cylinder Use of shielding gas is d...

Page 41: ...itch to V SENSE FEEDER position as shown The Left Display toggles between open cir cuit voltage and preset voltage Operation The Adjust Control is used to set desired preset voltage The Left Display t...

Page 42: ...349 A Turn off power before making con nections 1 Electrode Holder Carbon Arc For CAC A process connect carbon arc cutting torch to to positive weld output ter minal 2 Electrode Holder 3 Positive Wel...

Page 43: ...ion 3 is se lected remote control preset will be displayed in the amperage window See section 9 5 for more information regarding Alternate Configuration Functionality Adaptive Hot Start automatically...

Page 44: ...are ac tive remote controls will be ignored and amperagewill operate in panel only control See section 9 5 for more information re garding Alternate Configurations Adaptive Hot Start automatically inc...

Page 45: ...s remote operation When configuration 2 is selected Stick mode operates in Panel Only control meaning any remote control that is plugged into the remote 14 control will be ignored and have no effect o...

Page 46: ...ning Check Change Clean Replace Every 3 Months Replace Damaged Or Unreadable Labels Replace Cracked Torch Body Repair Or Replace Cracked Cables Repair Or Replace Cracked Cables And Cords Every 6 Month...

Page 47: ...heated The unit has shut down to allow the fan to cool it see Section 4 5 Operation will continue when the unit has cooled Help 6 Display Indicates operation at maximum input cur rent The unit has a m...

Page 48: ...No weld output meter display On Input voltage outside acceptable range of variation see Sections 5 7 5 8 Check repair or replace remote control Unit overheated Allow unit to cool with fan On see Secti...

Page 49: ...A complete Parts List is available at www MillerWelds com OM 2254 Page 43 Notes...

Page 50: ...OM 2254 Page 44 SECTION 11 ELECTRICAL DIAGRAM Figure 11 1 Circuit Diagram...

Page 51: ...OM 2254 Page 45 271 739 A...

Page 52: ...Notes...

Page 53: ...Notes Over 80 000 trained since 1930 400 Trade Square East Troy Ohio 45373 1 800 332 9448 www welding org Start Your Professional Welding Career Now...

Page 54: ...Notes...

Page 55: ...Guns Subarc SAW Torches and External Cladding Heads Remote Controls and RFCS RJ45 Replacement Parts No labor Spoolmate Spoolguns Miller s True Blue Limited Warranty shall not apply to 1 Consumable co...

Page 56: ...your personal 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 Safety Equip...

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