RETURN TO MAIN MENU IM10051 ® INVERTEC V311-T AC/DC For use with machines having Code Numbers: December, 2009 11685 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 thoughtful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT.
i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. The Above For Diesel Engines The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS.
ii ii SAFETY ELECTRIC SHOCK can kill. 3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate hands. 3.b. Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full area of physical contact with work and ground.
iii iii SAFETY WELDING and CUTTING SPARKS can cause fire or explosion. 6.a. Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas. Avoid welding near hydraulic lines. Have a fire extinguisher readily available. 6.b.
iv iv SAFETY PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suivantes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a. Les circuits à l’électrode et à la piéce sont sous tension quand la machine à souder est en marche.
v v SAFETY Electromagnetic Compatibility (EMC) Conformance Products displaying the CE mark are in conformity with European Community Council Directive of 3 May 1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility (89/336/EEC). It was manufactured in conformity with a national standard that implements a harmonized standard: EN 60974-10 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding Equipment.
vi vi SAFETY Electromagnetic Compatibility (EMC) The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking place. The surrounding area may extend beyond the boundaries of the premises. Methods of Reducing Emissions Mains Supply Welding equipment should be connected to the mains supply according to the manufacturer’s recommendations.
vii vii Thank You for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product ••• 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 equipment. Our challenge is to meet the needs of our customers and to exceed their expectations.
viii TABLE OF CONTENTS Page Installation.......................................................................................................................Section A Technical Specifications .......................................................................................................A-1 Select Suitable Location .......................................................................................................A-2 Stacking......................................................................
A-1 A-1 INSTALLATION TECHNICAL SPECIFICATIONS - INVERTEC® V311-T AC/DC TIG K2915-1 RATED OUTPUT Rated Output Current, Voltage, Duty Cycle (104°F, 40°C) Input Power Phase Voltage/ Hertz TIG 460/50/60 STICK ThreePhase TIG 230/50/60 STICK TIG 208/50/60 STICK TIG 460/50/60 STICK SinglePhase Input Current @ Rated Output TIG 230/50/60 STICK TIG 208/50/60 STICK 210A / 18.4V / 100% 230A / 19.2V / 60% 310A / 22.4V / 40% 200A / 28.0V / 100% 220A / 28.8V / 60% 270A / 30.8V / 40% 210A / 18.
A-2 INSTALLATION A-2 Read entire installation section before starting installation. MACHINE GROUNDING AND HIGH FREQUENCY INTERFERENCE PROTECTION Safety Precautions The Capacitor Discharge Circuit used in the high frequency generator, may cause many radio, TV and electronic equipment interference problems. These problems may be the result of radiated interference. Proper grounding methods can reduce or eliminate radiated interference. WARNING ELECTRIC SHOCK can kill.
A-3 INSTALLATION 5. The work terminal must be connected to a ground within ten feet of the welder, using one of the following methods. a) A metal underground water pipe in direct contact with the earth for ten feet or more. b) A 3/4” (19mm) galvanized pipe or a 5/8” (16mm) solid galvanized iron, steel or copper rod driven at least eight feet into the ground. The ground should be securely made and the grounding cable should be as short as possible using cable of the same size as the work cable, or larger.
A-4 INPUT PLUG INSTALLATION INSTALLATION A-4 ENGINE DRIVEN GENERATOR POWER CORD CONNECTION A 10 ft. power cord is provided and wired into the machine. Follow the power cord connection instructions. Single Phase Input Connect green lead to ground per National Electrical Code. Connect black and red leads to power. Wrap white lead with tape to provide 600V insulation. Three Phase Input Connect green lead to ground per National Electric Code. Connect black, red and white leads to power.
A-5 A-5 INSTALLATION OUTPUT CONNECTIONS WARNING ELECTRIC SHOCK can kill. • Insulate yourself from work and ground. • Turn the input line Switch on the Invertec® V311T AC/DC “off” before connecting or disconnecting output cables or other equipment. This unit does not include a TIG torch, but one may be purchased separately.
INSTALLATION A-6 QUICK DISCONNECT PLUG (FOR STICK ELECTRODE CABLE and WORK CABLE) A quick disconnect system is used for the welding cable connections. The stick electrode cable will need to have a plug attached. 1. Cut off welding cable lug, if present. A-6 SHIELDING GAS CONNECTION Obtain the necessary inert shielding gas. Connect the cylinder of gas with a pressure regulator and flow gage. Install a gas hose between the regulator and gas inlet (located on the rear of the welder).
B-1 OPERATION Read and understand this entire section before operating your machine. SAFETY INSTRUCTIONS WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts such as output terminals, electrode or internal wiring. • Insulate yourself from the work and ground. • Always wear dry insulating gloves. -----------------------------------------------------------FUMES AND GASES can be dangerous. • Keep your head out of fumes. • Use ventilation or exhaust to remove fumes from breathing zone.
B-2 B-2 OPERATION REAR CONTROL PANEL (FIGURE B.1) WARNING • I1: Off/On switch turns on the electric power to the welder. It has two positions, "O" off, and "I" on. -----------------------------------------------------------* With "l1" in the "I" (ON) position, the welding machine is operational and there is voltage between the positive (+) and negative (-) Terminals in stick welding. In TIG, the welding process needs a trigger closure command at the remote control connection.
B-3 B-3 OPERATION USER INTERFACE OVERVIEW AND OPERATION: FIGURE B.3 2 1 3 5 A B C D IN V E R T E C The Invertec® V311-T AC/DC User interface consists of the following (Refer to Figure B.3): 1. DYNAMIC LCD DISPLAY 2. STATUS LED LIGHTS a. VRD On (Voltage Reduction Device) Status Light- Voltage reduction device can be enabled from the set-up menu so that an output voltage limit can be set that reduces the output open circuit voltage to a safer level when not welding.
B-4 B-4 OPERATION DYNAMIC LCD DISPLAY f 97A The Dynamic display is divided into several sections (Refer to Figure B.4): 100Hz + 75% - 10A 10A 10.0s 0.2s 72A 1. Weld Sequence Diagram 4.3Hz 50% 0.0s 14A 5.0s 50% 5A 10.0s 0.2s 2. Parameter Display Figure B.4b 70A 3. Mode Push Button Indicators f 0.2Hz 100Hz + 75% 50% 10A Figure B.4 - 50% 10A 10.0s 0.2s 1. The Weld Sequence Diagram shows the various parameters that can be selected and adjusted and their preset values.
B-5 B-5 OPERATION 3. The Mode Push Buttons and Indicators show the current selection made by the corresponding weld push buttons (A-F). Refer to Table B.2 for a full list of all parameters and their ranges. Below is a description of the function of each push button and display: Two-Step with Foot Pedal -This mode is only available when the machine senses a remote amperage control device is plugged in. It is used when a foot or hand amptrol is plugged in.
B-6 B-6 OPERATION Bi-Level Current – (If Enabled from the Setup Menu) Depressing an arc start switch and releasing will initiate the arc to current level A1. Depressing and releasing the arc Start switch again will toggle to current level A2. Each depressing and releasing of the switch will toggle between A1 and A2. Depressing and holding the switch in will initiate the down slope to the finish current level and finally releasing the trigger will extinguish the arc.
B-7 B-7 OPERATION WELDING PARAMETERS The following parameters are adjustable on the Invertec® V311-T AC/DC. (See Table B.3) Table B.3 Parameter Symbol Parameter Name unit Parameter Range Min Max Pre-Flow Sec 0 5 Start Current Amps Min. Peak Finish Current Amps Min Peak Min. Current Amps Min Peak Upslope Sec 0 10 Downslope Sec 0 10 Spot Time Sec Off 10 Max. Current Amps 5 310 Pulse Frequency Hz 0.
B-8 B-8 OPERATION USER MENU SET UP PARAMETERS Many additional parameters can be modified via the Set Up Menu. To access the Set Up Menu press and hold the rotary encoder knob for several seconds until the following screen appears: (See figure B.7) FIGURE B.7b FIGURE B.7 Rotating the encoder knob will scroll through the setup parameters shown in Table B.4. Selected parameters are changed in one of two ways: For parameters like background current (shown in Figure B.
B-9 B-9 OPERATION TABLE B.4 Parameter Symbol See Figure B.
B-10 TABLE B.
B-11 B-11 OPERATION TIPS FOR IMPROVED TIG STARTING 1. Start Current: For the best AC or DC TIG starting characteristics it may be necessary to adjust the start current on the front panel depending on the tungsten size. In general, larger tungsten requires more energy to establish an arc than smaller tungsten. As an initial guideline, set the start current according to the following recommendations: Tungsten Size (in.) 0.020, 0.
C-1 ACCESSORIES OPTIONAL ACCESSORIES AND COMPATIBLE EQUIPMENT Field Installed K857 - Remote Output Control - For Stick welding. Portable current control provides the same range as the current control on the welder. Consists of a 6-pin connector which plugs into the remote control connector. 25 foot cable length. K870 - Foot Amptrol tm for TIG welding. The foot Amptrol energizes the output and controls the output remotely. The Foot Amptrol connects directly to the 6pin remote control connector.
C-2 ACCESSORIES CABLE PLUGS K852-70 - Cable Plug Kit for 1/0-2/0 cable. Attaches to welding cable to provide quick disconnect from machine. K1622-1 Twist-Mate adapter for PTA-9 & 17 AirCooled TIG torches – Adapter for PTA-9 or PTA-17 TIG torches with one-piece cable. The quick connect plug provides connection for both gas and welding current. K1622-3 Twist-Mate adapter for PTA-26 Air-Cooled TIG torches – Adapter for PTA-26 TIG torches with one-piece cable.
D-1 MAINTENANCE SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill. • Have an electrician install and service this equipment. • Turn the input power off at the fuse box, disconnect or unplug supply lines and allow machine to sit for five minutes minimum to allow the power capacitors to discharge before working inside this equipment. • Do not touch electrically hot parts.
E-1 TROUBLESHOOTING E-1 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.
E-2 E-2 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION PROBLEMS IN STICK WELDING Excessive spatter 1. Long arc 2. High current Craters 1. Fast movement of the electrode away from piece. Inclusions 1. Poor cleanliness or distribution of the Welding passes. 2. Improper movement of the electrode. Insufficient penetration 1. High progression speed. 2. Welding current too low. 3. Narrow chamfering.
E-3 E-3 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION PROBLEMS IN TIG WELDING Oxidation 1. lnsufficient gas. 2. No protection on the back side. Tungsten inclusions 1. lncorrect electrode sharpening. 2. Electrode too small. 3. Operating failure (contact of the tip with the workpiece). Porosity 1. Dirt on the edges. 2. Dirt on the filler material. 3. Excessive travel speed. 4. Current intensity too low.
E-4 E-4 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION ELECTRICAL FAILURES Machine fails to come on 1. No Input Voltage. (LCD screen and LED display do 2. Faulty supply plug or cable. not illuminate) 3. Internal fuse blown. 4. Input voltage not within range Power output incorrect 1. Incorrect setting up of the welding parameters. 2. Low mains supply voltage No output current 1.
E-5 TROUBLESHOOTING The Invertec® V311-T AC/DC, when a fault condition is detected, displays on the graphics LCD an alarm notification composed of: ALARM ICON + ALARM CODE + ALARM TYPE ICON Exx When a fault condition is detected, the power source and the cooler are switched in safety mode, it means the welding operation are stopped. To recover from a fault condition, it is necessary to remove the cause and exit the safety mode depressing the exit key button on the UI.
12/13/07 WIRING DIAGRAMS INVERTEC® V311-T AC/DC TIG NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number.
● Do not touch electrically live parts or WARNING Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENÇÃO ● Keep flammable materials away. ● Wear eye, ear and body protection. ● Mantenga el material combustible ● Protéjase los ojos, los oídos y el electrode with skin or wet clothing. ● Insulate yourself from work and ground. ● No toque las partes o los electrodos bajo carga con la piel o ropa mojada. ● Aislese del trabajo y de la tierra.
● Keep your head out of fumes. ● Use ventilation or exhaust to ● Turn power off before servicing. ● Do not operate with panel open or guards off. remove fumes from breathing zone. ● Los humos fuera de la zona de res- piración. ● Mantenga la cabeza fuera de los humos. Utilice ventilación o aspiración para gases. ● Gardez la tête à l’écart des fumées. ● Utilisez un ventilateur ou un aspira- ● Desconectar el cable de ali- mentación de poder de la máquina antes de iniciar cualquier servicio.
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