Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines
FOR ENGINEpowered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors....
Page 3 - ii
ii SAFETY ii ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable...
Page 4 - iii
FOR ELECTRICALLYpowered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working onthe equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’srecommendations. 8.c. Ground the equipment in ac...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
iv SAFETY iv PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instruc- tions et les précautions de sûreté specifiques qui parraissent d a n s c e m a n u e l a u s s i b i e n q u e l e s p r é c a u t i o n s d e s û r e t é générales suivantes: Sûreté Pour Soudage A L...
Page 6 - Thank You; Please Examine Carton and Equipment For Damage Immediately
INVERTEC V250-S 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! Read this Operators Manual completely before attempting to use this equipment. Save...
Page 7 - TABLE OF CONTENTS; PAGE
INVERTEC V250-S vi TABLE OF CONTENTS PAGE INSTALLATION .......................................................................................................................SECTION A TECHNICAL SPECIFICATIONS ........................................................................................A-1...
Page 8 - INSTALLATION; PHYSICAL DIMENSIONS
A-1 INSTALLATION INVERTEC V250-S A-1 Height Width Depth Weight 15.0 in. 9.1 in. 19.7 in. 36 lbs. 381 mm 231 mm 500 mm 17 Kg PHYSICAL DIMENSIONS THREE PHASE SINGLE PHASE Standard Input Current Voltage at Rated Output Model 208/230/460 60Hz 34/32/16 60Hz 200/220/400/440 50/60Hz 35/33/18/17 50/60 Hz 38...
Page 10 - SAFETY PRECAUTIONS; SELECT SUITABLE LOCATION
A-3 INSTALLATION INVERTEC V250-S A-3 Read this entire installation section before youstart installation. SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Have an electrician install and ser- vice this equipment. • Turn the input power off at the fuse box before working on equipment. • Do not touch elec...
Page 11 - INPUT FUSE AND SUPPLY WIRE; Technical Specifications; RECONNECT PROCEDURE; CAUTION; Figure A.1 Input Voltage Reconnect Instructions
A-4 INSTALLATION INVERTEC V250-S A-4 P O W E R I N P U T C O N N E C T I O N F O R 5 0 / 6 0 H ZMACHINES 1. Connect terminal marked to earth ground per National Electric Code. 2. Connect the supply lines to the line switch. Torque to 3.0 Nm. 3. Install in accordance with all local and national elect...
Page 12 - OUTPUT CONNECTIONS; FIGURE A.2 OUTPUT CONNECTIONS; REMOTE CONTROL RECEPTACLE; Cable Sizes for Combined Length of Electrode and; QUICK DISCONNECT PLUGS
A-5 INSTALLATION INVERTEC V250-S A-5 OUTPUT CONNECTIONS Refer to figure A.2 for the location of the 6 Pin RemoteReceptacle and the Output Terminals. FIGURE A.2 OUTPUT CONNECTIONS REMOTE CONTROL RECEPTACLE Remote control (K857), Arc start switch (K814), Handamptrol (K963) and Foot amptrol (K870) conn...
Page 13 - OPERATION; GENERAL DESCRIPTION; OPERATIONAL FEATURES; SAFETY INSTRUCTIONS; ELECTRIC SHOCK can kill.
B-1 OPERATION B-1 GENERAL DESCRIPTION The Invertec V250-S is a 250 amp arc welding powersource that utilizes single or three phase input power,t o p r o d u c e c o n s t a n t c u r r e n t o u t p u t . T h e w e l d i n gresponse of this Invertec has been optimized for stick(SMAW) and TIG (GTAW)....
Page 14 - CONTROLS AND SETTINGS; CASE FRONT CONTROLS.
B-2 OPERATION B-2 1. Power Switch - Place the lever in the “ ON ” position to energize the machine. When the power is on, the fan willo p e r a t e a n d t h e o u t p u t w i l l b e e n e r g i z e d i n S M A Wmodes. GTAW mode requires remote trigger to energizethe output. 2. Output Control - Thi...
Page 15 - Arc Force - This control functions in SMAW modes; Output Connections; CONSTANT CURRENT PROCESSES; AIR CARBON ARC CUTTING; Accessories; RECOMMENDED ARC FORCE/INDUCTANCE
B-3 OPERATION B-3 6. Arc Force - This control functions in SMAW modes to adjust the Arc Force. The arc is soft at the mini-mum settings and more forceful or driving at themaximum settings. Higher spatter levels may bepresent at the maximum settings. 7. Output Terminals - These quick disconnect termi...
Page 16 - PARALLEL OPERATION; T h e I n v e r t e c; OVERLOAD PROTECTION
B-4 OPERATION B-4 PARALLEL OPERATION T h e I n v e r t e c ’ s a r e o p e r a b l e i n p a r a l l e l . F o r b e s t results, the currents of each machine should be rea-s o n a b l y w e l l s h a r e d . A s a n e x a m p l e , w i t h t w omachines set up in parallel for a 300 amp procedure,ea...
Page 17 - ACCESSORIES; OPTIONS / ACCESSORIES; CABLE PLUGS; K857 - Remote Output Control for stick welding.
C-1 ACCESSORIES C-1 OPTIONS / ACCESSORIES CABLE PLUGS K852-70 - Cable Plug Kit for 1/0-2/0 cable. Attachesto welding cable to provide quick disconnect frommachine. K852-95 - Cable Plug Kit for 2.0-3/0 cable. N O T E : T w o K 8 5 2 - 7 0 p l u g s a r e i n c l u d e d w i t h t h eV250-S. REMOTE CO...
Page 18 - MAINTENANCE; ELECTRIC SHOCK; LOCATION OF INPUT FILTER CAPACITOR TERMINALS.
D-1 MAINTENANCE D-1 INPUT FILTER CAPACITORDISCHARGE PROCEDURE 1. Turn off input power or disconnect input power lines. 2. Remove the 5/16" hex head screws from the side and top of the machine and remove wrap-aroundmachine cover. 3. Be careful not to make contact with the capacitor terminals that...
Page 19 - ROUTINE MAINTENANCE
D-2 MAINTENANCE D-2 ROUTINE MAINTENANCE 1. Perform the following preventive maintenanceprocedures at least once every six months. It isgood practice to keep a preventive maintenancerecord; a record tag attached to the machineworks best. 2. Remove the machine wrap-around cover and per-form the input ...
Page 20 - LOCATION OF MAINTENANCE COMPONENTS.
D-3 MAINTENANCE D-3 INVERTEC V250-S FIGURE D.2 — LOCATION OF MAINTENANCE COMPONENTS. POWER PC BOARD CONTROL PC BOARD INPUT RECTIFIER OUTPUT RECTIFIERHEATSINK FINS MAIN TRANSFORMER OUTPUT TERMINALS POWER SWITCH COOLING FANS AUXILIARY TRANSFORMER
Page 21 - TROUBLESHOOTING & REPAIR; PC BOARD TROUBLESHOOTING PROCEDURES
INVERTEC V250-S E-1 TROUBLESHOOTING & REPAIR E-1 _______________________________ C A U T I O N : S o m e t i m e s m a c h i n e f a i l u r e sappear to be due to PC board failures. Theseproblems can sometimes be traced to poorelectrical connections. To avoid problemsw h e n t r o u b l e s h o...
Page 22 - OUTPUT PROBLEMS
E-2 TROUBLESHOOTING & REPAIR E-2 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual OUTPUT PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION Major physical or electrical damageis observed when cover wrap-aroundis removed. The ...
Page 23 - Observe all Safety Guidelines detailed throughout this manual; The mode switch must be in one
E-3 TROUBLESHOOTING & REPAIR E-3 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual OUTPUT PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION No output but the fan operates nor-mally. 1. The mode switch must be in one of the SM...
Page 24 - Check the input voltages and
E-4 TROUBLESHOOTING & REPAIR E-4 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual OUTPUT PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION Output turns on momentarily, thenswitches off and repeats cycle. Remote output contro...
Page 25 - Inspect input leads for possible
E-5 TROUBLESHOOTING & REPAIR E-5 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual OUTPUT PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION No output - Main input fuses open,indicating excessive current draw. The machine oper...
Page 26 - Check the input voltage and input
E-6 TROUBLESHOOTING & REPAIR E-6 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual OUTPUT PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION The machine will not produce morethan 200 amps. 1. This may be normal operation. If t...
Page 27 - WELDING PROBLEMS; Installation
E-7 TROUBLESHOOTING & REPAIR E-7 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual WELDING PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION Poor welding, weld settings drift, oroutput power is low. Poor stick electrode weldi...
Page 28 - DIAGRAMS
F-1 DIAGRAMS F-1 INVERTEC V250-S ELECTRICAL SYMBOLS PER E1537 W § AA6Œqb 31/32 H1 18V 76 C B A F 75 76 77 GND REMOTE CONTROL RECEPTACLE MIN T3 T2 OFF ON H1 I I TP5 B W TP4 C6 C5 311 313 W B 376 330 303 327 304 303 303A 305 1 2 3 377 376 330 303A LOCAL REMOTE 327 328 J4 CONNECTOR CAVITY NUMBERING SEQ...
Page 30 - ELECTRICAL DIAGRAMS
F-3 ELECTRICAL DIAGRAMS F-3 INVERTEC V250-S ELECTRICAL SYMBOLS PER E1537 +W § AA6Œqb 31/32 H1 18V 76 C B A F 75 76 77 GND REMOTE CONTROL RECEPTACLE MIN T3 T2 OFF ON H1 I I B W 311 313 W B 376 330 303 327 304 303 303A 305 1 2 3 377 376 330 303A LOCAL REMOTE 327 328 J4 CONNECTOR CAVITY NUMBERING SEQUE...
Page 32 - DIMENSION PRINT
F-5 DIAGRAMS F-5 INVERTEC V250-S 19.72 15.04 12.58 9.13 DIMENSION PRINT M17229 8-5-94
Page 33 - NOTES
Page 34 - Lincoln Welding School; BASIC COURSE; weeks of fundamentals
Now Available...12th EditionThe Procedure Handbook of Arc Welding With over 500,000 copies of previous editions published since 1933, the Procedure Handbook is considered by many to be the “ Bible ” of the arc welding industry. T h i s p r i n t i n g w i l l g o f a s t s o d o n ’ t d e l a y . P ...
Page 35 - ÇÃ
WARNING AVISO DE PRECAUCION ATTENTION WARNUNG ATEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BEUSED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS I...