Lincoln Electric V350-PRO User Manual

Invertec®V350-PRO

PHASE

Designed Smart. Built Tough.

The Invertec®V350-PRO is a versatile, multi-purpose, multi-process power source that’s lightweight and portable. Available in Construction, Factory, Factory (Tweco®), and Advanced Process models, the V350-PRO is capable of doing virtually any job, whether in the shop or on the construction site. The V350-PRO is capable of stick, DC TIG, MIG, Pulsed MIG most versatile inverter power source in its class. And it’s built tough to handle the rigors of harsh environments.

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, flux-cored and arc gouging, making it the

ENGINE DRIVEN WELDERS

MULTI-PROCESS WELDERS

Output

Input

Processes

Stick, DC TIG, MIG, Pulsed

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, Flux-Cored, Gouging

Advantage Lincoln

• Choose the Construction Model for economy and lightweight portability, the Factory Model for full remote capabilities, and the Advanced Process Model for pulsed MIG applications.

• All input voltages and frequencies are both single and three phase rated—no output derating necessary on single phase.

• 5-425 amp output range for all recommended processes from DC TIG to arc gouging.

• Input voltage from 208-575 and 50 and 60 Hz operation—this one machine is capable of running on virtually any input power supply.

• Touch-StartTIG

• Low power consumption for energy savings—88% efficiency.

• Advanced Process model includes Pulsed MIG, Pulse-On-Pulse and Power Mode®for best-in-class welding performance.

• Parallel two units for 700A carbon arc gouging.

for contamination-free starts.

Note: Plugs not included with Tweco®model.

• The K1728-5, -6, -7, -8, Invertec Cable Plugs (K852-70, quantity 2) for easy, tool-less cable connection. The K1728-13 Invertec

Tweco

cable receptacles. Tweco®plugs are not included.

V350-PRO includes Twist-Mate

V350-PRO Factory (Tweco®) model includes

™

• Bright, large digital amp and volt meters are easy to monitor—even in sunlight—and presettable for precise procedure control.

• Rugged skid and tube handles for convenience and added protection.

• Manufactured under a quality system certified to ISO 9001 requirements and ISO 14001 environmental standards.

• Three-year warranty on parts and labor. Two-year extended warranty available in the U.S.

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Advanced Process Panel only.

TECHNICAL SPECIFICATIONS

Product Product Current/ Input Current @ Output H x W x D Weight

Name Number Model Input Power Voltage/Duty Cycle Rated Output Range inches (mm) lbs.(kg)

K1728-5 Construction K1728-6 Factory

Invertec

V350-PRO K1728-13 Factory (Tweco

Tweco®is a registered trademark of Thermadyne.

K1728-7 Advanced Process

K1728-8 CE 200-220/380-400/ 350A/34V/60% (3ph) 3ph: 48/28-27/26-24 86.5

200-208/230/380-415/

460/575/1/3/50/60

208/230/415/ 300A/32V/100% 3ph: 41-39/36/23-22/19/16

)

460/575/1/3/50/60 1ph: 76/69/41/36/31

415-440/1/3/50/60 320A/33V/60% (1ph) 1ph: not rec’d - 82/55-50/48-45 (37.4)

Rated Output Dimensions Net

350A/34V/60% 3ph: 50/42/28-26/23/18 5-425A 14.8 x 13.3 x 27.8 81

300A/32V/100% (3ph) 3ph: 41-37/28-22/22-21 275A/31V/100% (1ph) 1ph: not rec’d-64/44-43/38-35

1ph: 94/85/54/42/37 Max OCV: (376 x 338 x 709) (36.7)

80V DC

Publication E5.91 11/07

www.lincolnelectric.com

A CLOSER LOOK

PERFORMANCE

Exceptional Multi-Process Fabrication Welding

The Lincoln Invertec®V350-PRO inverter welder enables strong multi-process welding performance with optimized arc characteristics for each process.

• Fast arc response yields tight output control: – More consistent bead appearance – Smooth arc action – Easy to follow puddle control

Five Welding Process Modes

1. CC-Stick Soft

Intended for low hydrogen stick applications.

Use to obtain outstanding E7018 performance for a variety of construction and fabrication applications.

2. CC-Stick Crisp

Delivers a crisp shorting response optimized for cellulosic (E6010) electrodes.

Stick

3. DC TIG GTAW

Standard Lincoln Touch-Start TIG

makes it easy to establish an arc.

Add the optional TIG Module for touch-less high frequency starting.

4. CV-Wire

Intended for use for most MIG, and gas-shielded flux-cored or metalcored applications.

The Invertec®V350-PRO features an exceptionally wide sweet spot delivering the arc performance and finished weld quality every operator appreciates:

• .030-1/16" (0.8-1.6 mm) solid wire

• .035-3/32" (0.9-2.4 mm) cored wire

Delivers outstanding performance with a wide variety of shielding gas mixes, including 100% CO2, Ar/CO2or Ar/O shielding gas for carbon steel as well as helium blends for stainless welding.

5. CV-Innershield®, Outershield®, Metalshield®and UltraCore

Features a wide voltage range and tight voltage control optimized for Lincoln Innershield®self-shielded flux-cored applications and for gas shielded flux-cored Lincoln®Outershield®procedures.

Arc Gouging

CV-Wire

6. Arc Gouging accessible from all Stick and CV Welding Modes

With a maximum 425 amps, the Invertec®V350-PRO has plenty of power to handle a 5/16" (7.9 mm) carbon.

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Stainless

Invertec®V350-PRO

www.lincolnelectric.com

A CLOSER LOOK

TIME

WELDING CURRENT

Background

Peak

Ramp Up

Tail Out

Step Off

PULSE FREQUENCY

Low Heat

(Background)

High Heat

(Peak)

FEATURES

Key Controls

A) Large, bright, easy to read meters B) Local/remote output control C) Mode selection switch D) Remote Output Control Receptacles—6- & 14-pin E) Negative and Positive Twist-Mate®or Tweco

Output Teminals F) Wire Feeder Voltmeter Polarity Switch G) Circuit Breaker Reset Buttons H) On/Off Switch

I)Hot Start Control J ) Arc Control Knob K) Weld Terminals on or remotely controlled L) Preset Output Amps and Voltage Control M) Thermal Overload Indicator Light

Shown:

Invertec®V350-PRO

Factory Model

Power Mode

spatter and improves

bead appearance,

even for low voltage

Pulse-On-Pulse®on 3mm Aluminum

reduces

procedures on

stainless.

Power Mode

bead wetting

and penetration

on aluminum.

Pulse-On-Pulse

• Uses a sequence of varying pulse wave shapes to produce a TIG-like bead appearance and excellent weld properties when MIG welding aluminum.

• Pulse-On-Pulse®controls arc length and heat input together, making it easier to achieve good penetration.

For more information see Nextweld®Document NX-2.10

Power Mode

• Uses high-speed regulation of output power to deliver extremely fast response to changes in the arc, for example, when using a whip technique.

aids

• Improved MIG welding performance, including low spatter, very uniform, consistent bead wetting and controlled penetration.

• Great for low voltage applications on thin steel and stainless steel material less than 20 gauge (0.7 mm).

• Delivers excellent arc characteristics on aluminum and other alloys such as silicon bronze and nickel alloys.

For more information see Nextweld®Document NX-2.60

Pulsed MIG

• Varies weld current between peak (high heat) and background (low heat) current to provide better control of heat input.

• Reduces warping and burnthrough on thin materials.

• Enables in-the-flat, horizontal, vertical up, or overhead welding without a slag system. Great for hard automation, robotic, and high production semiautomatic applications.

• Optimized GMAW-P waveforms are available to use on aluminum, carbon steel, high strength low alloy steel, stainless steel, and nickel alloys.

For more information see Nextweld®Document NX-2.70

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Invertec®V350-PRO

www.lincolnelectric.com

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