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Operator's Manual
INVERTEC
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Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)
IM10586
| Issue D ate Feb-21
© Lincoln Global, Inc. All Rights Reserved.
V276
®
For use with machines having Code Numbers:
13079, 13080
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Table of Contents
Related Manuals for Lincoln Electric INVERTEC V276
Summary of Contents for Lincoln Electric INVERTEC V276
- Page 1 Operator’s Manual INVERTEC V276 ® For use with machines having Code Numbers: 13079, 13080 Register your machine: www.lincolnelectric.com/register Authorized Service and Distributor Locator: www.lincolnelectric.com/locator Save for future reference Date Purchased Code: (ex: 10859) Serial: (ex: U1060512345) IM10586 | Issue D ate Feb-21 ©...
- Page 2 THANK YOU FOR SELECTING A QUALITY PRODUCT BY KEEP YOUR HEAD OUT OF THE FUMES. DON’T get too close to the arc. LINCOLN ELEC TRIC. Use corrective lenses if necessary to stay a reasonable distance away from the arc. READ and obey the Safety Data PLEASE EXAMINE CARTON AND EQUIPMENT FOR Sheet (SDS) and the warning label DAMAGE IMMEDIATELY...
- Page 3 W117.2. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 2.d. All welders should use the following procedures in order to St. Clair Avenue, Cleveland, Ohio 44117-1199.
- Page 4 SAFETY ELECTRIC SHOCK ARC RAYS CAN BURN. CAN KILL. 3.a. The electrode and work (or ground) circuits are 4.a. Use a shield with the proper filter and cover plates to protect your electrically “hot” when the welder is on. Do eyes from sparks and the rays of the arc when welding or not touch these “hot”...
- Page 5 SAFETY WELDING AND CUTTING CYLINDER MAY EXPLODE IF SPARKS CAN CAUSE DAMAGED. FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used 6.a. Remove fire hazards from the welding area. If and properly operating regulators designed for this is not possible, cover them to prevent the welding sparks the gas and pressure used.
- Page 6 SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier. Pour votre propre protection lire et observer toutes les instruc- tions et les précautions de sûreté...
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Page 7: Table Of Contents
TABLE OF CONTENTS INSTALLATION............................. SECTION A TECHNICAL SPECIFICATIONS............................. A-1 SAFETY PRECAUTIONS...............................A-2 SUITABLE LOCATION..............................A-2 INPUT CONNECTIONS..............................A-2 INPUT VOLTAGE RECONNECT PROCEDURE........................ A-3 OUTPUT CONNECTIONS............................A-4 OPERATION ..............................SECTION B SAFETY PRECAUTIONS.............................. B-1 GENERAL DESCRIPTION.............................B-1 CONTROLS AND SETTINGS............................B-2 CONSTANT CURRENT PROCESSES.......................... - Page 8 ® INVERTEC V276 INSTALLATION Technical Specifications - Invertec V276 INPUT AT RATED OUTPUT - THREE PHASE ONLY EFFICIENCY INPUT IDLE OUTPUT CURRENT @ RATED INPUT VOLTS-Hz POWER CONDITIONS AMPS OUTPUT 200A/28V/100% 27/25/13/11 *208/230/460/575 - 60Hz 250A/30V/60% 35/33/17/14 *275A/31V/35% */37/19/16 120W Max 190A/27.6V/100%...
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Page 9: Installation
• Turn off input power to the power source at the disconnect switch or The normal operation of the Invertec V276 may fuse box before working on this equipment. Turn off adversely affect the operation of RF controlled the input power to any other equipment connected to... -
Page 10: Input Voltage Reconnect Procedure
® INVERTEC V276 INSTALLATION INPUT VOLTAGE RECONNECT PROCEDURE When received directly from the factory, units are con- nected for, 460 VAC. If 460 VAC is the desired input, then the machine may be connected to the power sys- tem without any setup required inside the reconnect door. -
Page 11: Output Connections
® INVERTEC V276 INSTALLATION OUTPUT CONNECTIONS QUICK DISCONNECT PLUGS A quick disconnect system is used for the welding Refer to figure A.2 for the location of the 6-Pin cable connections. Remote Receptacle and the Output Terminals. FIGURE A.2 OUTPUT CONNECTIONS 1. -
Page 12: Operation
Read and understand this entire section before GENERAL DESCRIPTION operating your machine. The Invertec V276 is a 275 amp arc welding power SAFETY PRECAUTIONS source that utilizes single or three phase input power, to produce constant current output. The welding... -
Page 13: Controls And Settings
® INVERTEC V276 OPERATION CONTROLS AND SETTINGS All operator controls and adjustments are located on the case front of the V276. Refer to Figure B.1 and corre- sponding explanations. FIGURE B.1 — CASE FRONT CONTROLS. OUTPUT 1. POWER SWITCH machine. Place in the “REMOTE” position to allow output Place the lever in the “ON”... -
Page 14: Constant Current Processes
TIG WELDING* The Invertec V276 is capable of touch start TIG welding. An Thermostats are self-resetting once the machine cools suffi- electrode cable, work cable, TIG torch, and gas supply with reg- ciently. -
Page 15: Options / Accessories
(NEC) standards. Twist-Mate Cable Receptacle - For connecting weld- ing cable to Twist-Mate cable plug. For 1/0-2/0 (50- • Includes 4 or 8 Invertec V276 rack model power 70mm ) cable. sources. This special rack version has all the same Order K1759-70 features as the standard V276. -
Page 16: Maintenance
® INVERTEC V276 MAINTENANCE 4. Obtain a high resistance and high wattage resistor WARNING (25-1000 ohms and 25 watts minimum). This resis- ELECTRIC SHOCK can kill. tor is not supplied with machine. NEVER USE A • Have an electrician install and service SHORTING STRAP FOR THIS PROCEDURE. -
Page 17: Routine Maintenance
® INVERTEC V276 MAINTENANCE ROUTINE MAINTENANCE 1. Perform the following preventive maintenance pro- cedures at least once every six months. It is good practice to keep a preventive maintenance record; a record tag attached to the machine works best. 2. Remove the machine wrap-around cover and per- form the input filter capacitor discharge procedure (detail at the beginning of this chapter). -
Page 18: Location Of Maintenance Components
® INVERTEC V276 MAINTENANCE FIGURE D.2 — LOCATION OF MAINTENANCE COMPONENTS. WRAP-AROUND CENTER ASSEMBLY COOLING FANS OUTPUT RECTIFIER ASSEMBLY CASE FRONT ASSEMBLY INPUT RECTIFIER CONTROL PC BOARD CASE BACK ASSEMBLY MAIN TRANSFORMER ASSEMBLY POWER SWITCH OUTPUT TERMINALS CHOKE ASSEMBLY SWITCH BOARD & HEAT SINK ASSEMBLY BASE... -
Page 19: Calibration Procedures
Please allow 5 seconds 2. Set load bank to 375A with the switch in the OFF position before turning 3. Turn on Invertec V276 back ON. 4. Place mode toggle switch into SMAW mode The changes are now saved and will remain 5. -
Page 20: 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 21 ® INVERTEC V276 TROUBLESHOOTING PC BOARD TROUBLESHOOTING PROCEDURES WARNING - Remove the P.C. Board from the static- shielding bag and place it directly into the ELECTRIC SHOCK can kill. equipment. Don’t set the P.C. Board on or Have an electrician install near paper, plastic or cloth which could have and service this equip- a static charge.
- Page 22 ® INVERTEC V276 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION OUTPUT PROBLEMS Major physical or electrical damage is observed when cover wrap-around is removed. The machine is dead - no output. 1.
- Page 23 ® INVERTEC V276 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION OUTPUT PROBLEMS Output turns on momentarily, then 1. Check the input voltages and switches off and repeats cycle. reconnection procedures. Make sure the input voltage is correct for the machine.
- Page 24 ® INVERTEC V276 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION OUTPUT PROBLEMS No output - Main input fuses open, 1. Inspect input leads for possible indicating excessive current draw. shorts or grounds or mis-connec- tions.
- Page 25 ® INVERTEC V276 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION OUTPUT PROBLEMS The machine will not produce more 1. This may be normal operation. If than 200 amps. the output current exceeds 300 amps, an electronic protection circuit will reduce the current to less than 200 amps.
- Page 26 ® INVERTEC V276 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION WELDING PROBLEMS Poor welding, weld settings drift, or 1. Make sure the machine settings output power is low. are correct for the weld process being used.
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Page 27: Diagrams
® INVERTEC V276 DIAGRAMS WIRING DIAGRAM- CODES: 13079, 13080... - Page 28 ® INVERTEC V276 DIAGRAMS...
- Page 29 ® INVERTEC V276 NOTES...
- Page 30 ® INVERTEC V276 NOTES...
- Page 31 WARNING Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. electrode with skin or wet clothing. Insulate yourself from work and AVISO DE 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 32 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. remove fumes from breathing zone. AVISO DE Spanish PRECAuCION Los humos fuera de la zona de res- Desconectar el cable de ali- No operar con panel abierto o piración.
- Page 33 We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or advice.
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Questions and answers
Do you need argon to use the machine lincoln vertec v276
The Lincoln Electric Invertec V276 supports multiple welding processes, including Stick (SMAW) and TIG (GTAW). If using the TIG process, shielding gas such as argon is typically required to protect the weld from contamination. However, for Stick welding, no shielding gas is needed.
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