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INVERTEC
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT
READING
THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
V350-PRO
® ®
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OPERATOR'S MANUAL
• World's Leader in Welding and Cutting Products •
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Copyright © Lincoln Global Inc.
IM731-C
October, 2007

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  • Page 1 NRTL/C OPERATOR’S MANUAL Copyright © Lincoln Global Inc. • World's Leader in Welding and Cutting Products • • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com...
  • Page 2 SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents The engine exhaust from this product contains are known to the State of California to cause can- chemicals known to the State of California to cause cer, birth defects, and other reproductive harm.
  • Page 3 SAFETY ARC RAYS can burn. ELECTRIC SHOCK can kill. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and 3.a. The electrode and work (or ground) circuits the rays of the arc when welding or observing are electrically “hot”...
  • Page 4 SAFETY WELDING and CUTTING CYLINDER may explode SPARKS can if damaged. cause fire or explosion. 7.a. Use only compressed gas cylinders 6.a. Remove fire hazards from the welding area. containing the correct shielding gas for the If this is not possible, cover them to prevent process used and properly operating the welding sparks from starting a fire.
  • Page 5 SAFETY PRÉCAUTIONS DE SÛRETÉ 6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque dʼincendie dû aux étincelles. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce 7.
  • Page 6 for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product T T h h a a n n k k Y Y o o u u ••• as much pride as we have in bringing this product to you! CUSTOMER ASSISTANCE POLICY The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip- ment.
  • Page 7: Table Of Contents

    TABLE OF CONTENTS Page Installation .......................Section A Technical Specifications ..................A-1 Physical Dimensions ..................A-2 Safety Precautions ..................A-3 Select Suitable Location..................A-3 Stacking ......................A-3 Tilting.......................A-3 Input and Grounding Connections ..............A-3 Power Cord Connection ..................A-3 Connection of Wire Feeders to V350-PRO ..........A-3,A-4 Remote Control of Invertec ................A-5 Undercarriage Mountings................A-5 Parallel Operations..................A-5 ________________________________________________________________________...
  • Page 8: Installation

    INSTALLATION TECHNICAL SPECIFICATIONS - INVERTEC V350-PRO INPUT AT RATED OUTPUT Product Input AC Rated DC Output Output Open Name Voltage Amps/Volt Range Circuit /Duty Cycle (continuous) Voltage I I n n v v e e r r t t e e c c...
  • Page 9: Physical Dimensions

    INSTALLATION PHYSICAL DIMENSIONS Height Width Depth Weight with Cord Construction and Factory 14.8”(373mm) 13.3”(338mm) 27.8” *(706mm*) 81.0 Lbs.(36.7 Kg) Advanced Process 14.8”(373mm) 13.3”(338mm) 27.8” *(706mm*) 81.5 Lbs.(37.0 Kg) and Rack TEMPERATURE RANGES OPERATING TEMPERATURE RANGE STORAGE TEMPERATURE RANGE -20°C to +40°C -40°C to +40°C * Overall Length Including Handle, 27.8”...
  • Page 10: Safety Precautions

    Code. ----------------------------------------------------------------------- ---------------------------------------------------------------------- SELECT SUITABLE LOCATION BLACK The Invertec V350-PRO will operate in harsh environments. GREEN Even so, it is important that simple preventative measures WHITE or BROWN are followed in order to assure long life and reliable opera- tion.
  • Page 11 INSTALLATION LN-742 Connection Instructions LN-10 Connection Instructions An LN-742 can only be used with the “Factory” & An LN-10 can only be used with the “Factory” & “Advanced Process” ” versions of the 350-Pro. “Advanced Process” ” versions of the 350-Pro. •...
  • Page 12: Remote Control Of Invertec

    INSTALLATION General Instructions for Connection of Wire 27.82 Feeders to V350-Pro Wire feeders other than those listed above may be 3.44 21.06 used provided that the auxiliary power supply rating of the V350-Pro is not exceeded. K867 universal adapter plug is required. See connection diagram S24985 on page F-4.
  • Page 13: Operation

    GENERAL DESCRIPTION volts. • After welding, the meter holds the actual voltage The Invertec V350-Pro offers multi-process CV, CC, value for 5 seconds. The displays blink indicating and DC welding and is rated 350 amps, 34 volts at a that the machine is in the "Hold" period.
  • Page 14 OPERATION CC-STICK SOFT: The Stick Soft process features STICK = ON CV = REMOTE continuous control ranging from 5 to 425 amps. This TIG = REMOTE if remote output controls are mode was intended for most SMAW applications, and attached to the machine. Arc Gouging.
  • Page 15 OPERATION CV-INNERSHIELD: The CV-INNERSHIELD mode • The Arc Control regulates the Arc Force to adjust features continuous control from 10 to 45 volts. This the short circuit current. The minimum setting (-10) mode was designed for self-shielded flux cored wires will produce a "soft"...
  • Page 16 OPERATION 7A. ADVANCED PROCESS PANEL • Pulsed Modes (See Figure 2) In Pulse Modes; The work point will be in the Amps window and To program Welding modes. Select knob is used to should be set close to the wire feed speed of the Scroll through all Welding modes.
  • Page 17 OPERATION CONTROLS: (See Figure 2) 5. After all adjustments have been made press and hold the Memory button until the display changes. The right and the left window will display a memory The MEMORY button and SELECT knob are used position, lets say M1(or turn knob to select memory together to select a welding process and store it in of your choice.
  • Page 18: Weld Mode Details

    OPERATION WELD MODE DETAILS: Mode Range Comments Stick Soft 5 - 425 amps The stick soft mode is the best selection for general stick applications. Arc Control = Arc Force Hot Start = Initial hot start current (min = start a match set amps, Max. = greatest hot start current) During hot start, arc force is set at high and is fast response.
  • Page 19: Pulse Programs

    OPERATION PULSE PROGRAMS: MODE IPM* COMMENTS .030 Steel 65 - 1200 The V350 pulse programs are non-synergic and allow independent .035 Steel 55 - 800 control of the wire feed speed and the arc length. The Output .045 Steel 50 - 700 Control Knob on the V350, adjusts an "SPD"...
  • Page 20: Lower Case Panel

    20mA. pushing the OUTPUT CONTROL or WELD TERMINAL but- • 0 volts supplied to 76 will set the Invertec V350-Pro to ton. (A user cannot select between the 6 and 14 pin MS- minimum output for the mode that has been selected style connectors.)
  • Page 21: Auxiliary Power

    AUXILIARY POWER • 115VAC, 42VAC and 24VAC power is available from the 14-pin MS-style connector. The Construction model of the Invertec V350-Pro does not have the 14-pin MS-style connector) These sup- plies are intended to supply power for auxiliary equipment like wire feeders and the TIG Module.
  • Page 22: Accessories

    ACCESSORIES QUICK DISCONNECT PLUGS OPTIONS / ACCESSORIES • K2176-1 Twist-Mate to Lug Adapter A quick disconnect system is used for the welding • K1764-1 Inverter and Feeder Cart cable connections. The K852-70 is designed to • K1557 Swivel Kit accept a welding cable size of 1/0 to 2/0. •...
  • Page 23: Maintenance

    MAINTENANCE SAFETY PRECAUTIONS VISUAL INSPECTION WARNING Clean interior of machine with a low pressure air stream. Make a thorough inspection of all compo- ELECTRIC SHOCK can kill. nents. Look for signs of overheating, broken leads or • Do not touch electrically live parts or electrode with skin or wet clothing.
  • Page 24: How To Use Troubleshooting Guide

    TROUBLESHOOTING HOW TO USE TROUBLESHOOTING GUIDE WARNING Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 25 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual POSSIBLE RECOMMENDED PROBLEMS CAUSE COURSE OF ACTION (SYMPTOMS) 1. Contact your local authorized Major physical or electrical damage is evident when the sheet metal Lincoln Electric Field Service facil- ity for technical assistance. covers are removed.
  • Page 26 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Thermal symbol is lit 1. Check for proper fan operation. If fan is not operating correctly the CB 2 amp breaker may have opened.
  • Page 27: Fault Codes

    TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual Fault Codes Code Description Corrective Action Primary over current. If condition persists The machine needs to contact an authorized be turned off and back Lincoln Field Service on to reset the machine. Shop CAP bank A under voltage.
  • Page 28: Displays

    TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual Displays Description Scrolling dash Appears at power up while the machine is going through its self configu- ration "Err" "####" Fault code display. The first fault to occur will be displayed for three seconds.
  • Page 29 DIAGRAMS INVERTEC® V350-PRO...
  • Page 30 DIAGRAMS INVERTEC® V350-PRO...
  • Page 31 DIAGRAMS INVERTEC® V350-PRO...
  • Page 32 DIAGRAMS INVERTEC® V350-PRO...
  • Page 33 DIAGRAMS INVERTEC® V350-PRO...
  • Page 34 DIAGRAMS INVERTEC® V350-PRO...
  • Page 35 DIAGRAMS INVERTEC® V350-PRO...
  • Page 36 DIAGRAMS INVERTEC® V350-PRO...
  • Page 37 DIMENSION PRINT INVERTEC® V350-PRO...
  • Page 38 WARNING Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. electrode with skin or wet clothing. AVISO DE Insulate yourself from work and ground. Spanish PRECAUCION No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el bajo carga con la piel o ropa moja-...
  • Page 39 WARNING Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or Use ventilation or exhaust to guards off. AVISO DE remove fumes from breathing zone. Spanish PRECAUCION Los humos fuera de la zona de res- Desconectar el cable de ali- No operar con panel abierto o piración.
  • Page 40 • World's Leader in Welding and Cutting Products • • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com...

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