Instruction/ maintenance manual of the product SVM152-A Lincoln Electric
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SVM152-A JUL Y , 2000 Safety Depends on Y ou Lincoln arc welding and cutting equipment is designed and built with safety in mind. However , your overall safety can be increased by pr oper installation .
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC i SAFETY i FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ii SAFETY ii ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding.
SAFETY iii iii V350-PRO Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ELECTRICALL Y powered equipment. 8.a. T urn off input power using the disconnect switch at the fuse box before working on the equipment. 8.
SAFETY iv iv V350-PRO Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions.
MASTER T ABLE OF CONTENTS FOR ALL SECTIONS v v V350-PRO Page Safety .................................................................................................................................................i-iv Installation ....................
SectionA-1 Section A-1 V350-PRO Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE OF CONTENTS - INST ALLA TION SECTION - Installation T echnical Specifications ..................................................
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-2 INST ALLA TION .
INST ALLA TION A-3 A-3 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT AND GROUNDING CONNECTIONS 1. Only a qualified electrician should connect the Invertec V350-PRO.
INST ALLA TION A-4 A-4 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 5. T ighten set screw to collapse copper tube. Screw must apply pressure against welding cable.
Section B-1 Section B-1 V350-PRO T ABLE OF CONTENTS - OPERA TION SECTION - Operation ............................................................................................................................... Section B Operating Instructions .....
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-2 B-2 V350-PRO OPERA TION OPERA TING INSTRUCTIONS ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing.
OPERA TION B-3 B-3 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC For both the Construction and Factory versions, these trigger modes can be over-ridden (switched) with the WELD TERMINALS push button.
OPERA TION B-4 B-4 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC • The Arc Control regulates the relative Slope of the process.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TION B-5 B-5 V350-PRO TIG mode • The remote will default to the 6-pin amphenol if a remote control is connected to the 6-pin amphenol and one of the 14-pin amphenols.
OPERA TION B-6 B-6 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Auxiliary Power • 1 15V AC, 42V AC and 24V AC power is available from the two 14-pin amphenols on the rear of the unit.
C-1 C-1 V350-PRO Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE OF CONTENTS - ACCESSORIES SECTION - Accessories ...............................................................................................
CONNECTION OF LINCOLN ELEC- TRIC WIRE FEEDERS CONNECTION OF THE LN-25 TO THE V350-PRO “ ACROSS THE ARC ” WITH OPTIONAL 6 PIN K441-1 REMOTE CON- TROL. 1. Remove input power to the V350-PRO. 2. Connect the electrode cable to the output terminal of polarity requir ed by the electrode.
CONNECTION OF THE LN-25 TO THE V350-PRO “ ACROSS THE ARC ” WITH OPTIONAL 6 PIN K857 REMOTE CON- TROL. 1. Remove input power to the V350-PRO. 2. Connect the electrode cable to the output terminal of polarity requir ed by the electrode. Connect the work lead to the other terminal.
ACCESSORIES C-4 C-4 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONNECTION OF THE LN-25 WITH K431 REMOTE OPTION TO THE V350-PRO.
ACCESSORIES C-5 C-5 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONNECTION OF THE K867 ADAPTER FOR USE WITH LN-25 WITH K431 OPTION/V350-PRO.
ACCESSORIES C-6 C-6 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONNECTION OF THE LN-7 TO THE V350- PRO USING K480 CONTROL CABLE (SEE FIGURE C.
ACCESSORIES C-7 C-7 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONNECTION OF THE K867 ADAPTER FOR USE WITH THE K291 OR K404 INPUT CABLES AND LN-7.
C-8 C-8 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ACCESSORIES CONNECTION OF THE LN-742 TO THE V350-PRO (SEE FIGURE C.
CONNECTION OF THE LN-10 TO THE V350- PRO USING THE K1505 CONTROL CABLE. NOTE: AN LN-10 CAN ONL Y BE USED WITH A F AC- TOR Y OR “ CE ” VERSION OF THE V350-PRO. 1. Remove input power to the V350-PRO. 2. Connect the K1505 control cable from the LN-10 to the Invertec 24/42V AC 14 pin amphenol con- necter on the rear of the V350-PRO.
ACCESSORIES C-10 C-10 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master T.
Section D-1 Section D-1 V350-PRO T ABLE OF CONTENTS -MAINTENANCE- Maintenance ......................................................................................................................... Section D Input Filter Capacitor Dischar ge Procedur e .
MAINTENANCE D-2 D-2 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC - + - + - + - + CAP ACITOR TERMINALS POWER RESISTOR INSULA TED GLOVES INSULA TED PLIERS EIGHT FIGURE D.
OVERLOAD PROTECTION The machine is electrically protected from producing high output currents. Should the output current exceed 430A, an electronic protection circuit will reduce the current to approximately 100A. The machine will con- tinue to produce this low current until the protection cir- cuit is reset.
W A R N IN G R E M O T E P O W E R O F F O N A AMPS A V VOLTS WELD T ERM IN ALS SE LE CT OUTPUT LINCOLN ELECTR IC INVERTEC V350-PRO WARNING WARNING A VISO DE PRECAUCION A TTENTION ! ! ! ! Lorem i ps u.
Section E-1 Section E-1 V350-PRO Theory of Operation ............................................................................................................. Section E General Description ..........................................................
FIGURE E.2 – INPUT VOL T AGE AND PRECHARGE Remote Board Mode P anel Status P anel Display P anel Control Board Choke P ositive Output T er minal Negative Output T er minal T o Control Board Current .
SWITCH BOARD & MAIN TRANSFORMER There is one switch boar d in the Invertec V350-Pro. This board incorporates two pairs of input capacitors, two insulated gate bipolar transistor (IGBT) switching circuits, a fan motor drive cir cuit, and a voltage/fre- quency capacitor feedback circuit.
THEOR Y OF OPERA TION E-4 E-4 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE E.
OUTPUT RECTIFIER AND CHOKE The output rectifier r eceives the AC output from the main transformer secondary and rectifies it to a DC voltage level. Since the output choke is in series with the negative leg of the output rectifier and also in series with the welding load, a filtered DC output is applied to the machine’ s output terminals.
THERMAL PROTECTION T wo normally closed (NC) thermostats protect the machine from excessive operating temperatur es. These thermostats are wir ed in series and are con- nected to the control boar d. One of the thermostats is located on the heat sink of the switch board and the other is located on the output choke.
INSULA TED GA TE BIPOLAR TRANSIST OR (IGBT) OPERA TION An IGBT is a type of transistor . IGBT are semiconduc- tors well suited for high frequency switching and high current applications. Example A in Figure E.8 shows an IGBT in passive mode. There is no gate signal, zer o volts r elative to the source, and ther efore, no curr ent flow .
PULSE WIDTH MODULA TION The term Pulse Width Modulation is used to describe how much time is devoted to conduction in the posi- tive and negative portions of the cycle.
V350-PRO Section F-1 Section F-1 T roubleshooting & Repair Section ................................................................................. Section F How to Use T roubleshooting Guide ......................................................
HOW TO USE TROUBLESHOOTING GUIDE Service and repair should be performed by only Lincoln Electric Factory T rained Personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician and machine operator and will invalidate your factory warranty .
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRIC SHOCK can kill. Have an electrician install and service this equipment.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-4 F-4 Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-5 F-5 TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-6 F-6 Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-7 F-7 Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-8 F-8 Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual.
SERVICE F ACILITY CORRECTIVE ACTION CORRECTIVE ACTION DESCRIPTION/ DEFINITION 31 32 Main transformer primary over current Capacitor bank “A” (lower) is under voltage T urn the machine off and back on to reset the machine. If condition persists, contact an authorized Lincoln Field Service Facility .
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SERVICE F ACILITY CORRECTIVE ACTION CORRECTIVE ACTION DESCRIPTION/ DEFINITION 33 34 Capacitor bank "B"(upper) is under voltage.
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SERVICE F ACILITY CORRECTIVE ACTION CORRECTIVE ACTION DESCRIPTION/ DEFINITION 35 37 Capacitor bank "B"(lower) is over voltage.
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SERVICE F ACILITY CORRECTIVE ACTION CORRECTIVE ACTION DESCRIPTION/ DEFINITION 39 43 44 Electrical "glitch" on the primary over current fault detector circuit.
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SERVICE F ACILITY C.
NOTES F-14 F-14 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
W ARNING Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING &am.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-16 F-16 V350-PRO ELECTRIC SHOCK can kill. • Have an electrician install and service this equipment.
MAIN SWITCH BOARD TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-18 F-18 V350-PRO MAIN SWITCH BOARD TEST (continued) FIGURE F .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-19 F-19 V350-PRO MAIN SWITCH BOARD TEST (continued) T ABLE F .
NOTES F-20 F-20 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
TROUBLESHOOTING & REP AIR F-21 F-21 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT RECTIFIER TEST Service and repair should be performed by only Lincoln Electric factory trained personnel.
TEST PROCEDURE 1. Remove input power to the V350-PRO machine. 2. Using a 5/16” nut driver , remove the case wraparound cover . 3. Perform the Capacitor Discharge Procedur e detailed earlier in this section. 4. Locate the input r ectifier and associated leads.
TROUBLESHOOTING & REP AIR F-23 F-23 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 9. If the input rectifier does not meet the acceptable readings outlined in T able F .
NOTES F-24 F-24 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
F-25 F-25 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR POWER BOARD TEST Service and repair should be performed by only Lincoln Electric factory trained personnel.
TEST PROCEDURE 1. Remove input power to the V350-PRO machine. 2. Using a 5/16” nut driver , remove the case wraparound cover . 3. Perform the Capacitor Discharge Procedure detailed earlier in this section. 4. Locate the power board and plugs J41, J42 and J43.
TROUBLESHOOTING & REP AIR F-27 F-27 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC POWER BOARD TEST (CONTINUED) T able F .
NOTES F-28 F-28 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
OUTPUT DIODE MODULES TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-30 F-30 V350-PRO OUTPUT DIODE MODULES TEST (continued) TEST PROCEDURE 1.
TROUBLESHOOTING & REP AIR F-31 F-31 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OUTPUT DIODE MODULES TEST (continued) 5.
TROUBLESHOOTING & REP AIR OUTPUT DIODE MODULES TEST (continued) F-32 F-32 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Figure F .
AUXILIAR Y TRANSFORMER TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-34 F-34 V350-PRO AUXILIAR Y TRANSFORMER TEST (continued) TEST PROCEDURE 1.
TROUBLESHOOTING & REP AIR AUXILIAR Y TRANSFORMER NO.1 TEST (continued) F-35 F-35 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 7.
NOTES F-36 F-36 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
TROUBLESHOOTING AND REP AIR F-37 F-37 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CURRENT TRANSDUCER TEST Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING AND REP AIR CURRENT TRANSDUCER TEST (continued) F-38 F-38 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TEST PROCEDURE 1.
TROUBLESHOOTING AND REP AIR CURRENT TRANSDUCER TEST (continued) F-39 F-39 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 9.
NOTES F-40 F-40 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
TROUBLESHOOTING AND REP AIR F-41 F-41 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F AN CONTROL AND MOTOR TEST Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING AND REP AIR F AN CONTROL AND MOTOR TEST (continued) F-42 F-42 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TEST PROCEDURE 1.
Lead 716- Plug J20 Lead 715+ TROUBLESHOOTING AND REP AIR F AN CONTROL AND MOTOR TEST (continued) F-43 F-43 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 7.
NOTES F-44 F-44 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
TROUBLESHOOTING AND REP AIR F-45 F-45 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SPI CABLE RESIST ANCE AND VOL T AGE TEST Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING AND REP AIR SPI CABLE RESIST ANCE AND VOL T AGE TEST (continued) F-46 F-46 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TEST PROCEDURE 1.
VOL T AGE AND CURRENT CALIBRA TION PROCEDURE Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
TROUBLESHOOTING AND REP AIR VOL T AGE AND CURRENT CALIBRA TION PROCEDURE (continued) F-48 F-48 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return t.
CURRENT CALIBRA TION PROCEDURE 1. Connect the resistive load band (approxi- mately .087 ohms) and test ammeter to the welding output terminals. 2. Press and hold in the Mode Select button. 3. T ur n on the V350-PRO. 4. Rotate the Output Control knob until the display reads “cur cAL”.
NOTES F-50 F-50 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
CONTROL BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-52 F-52 PROCEDURE 1. Remove input power to the V350-PRO.
Observe static precautions detailed in PC Board T roubleshooting Procedures at the beginning of this section. 8. The front of the machine may now gently be pulled forward to gain access to the Contr ol Boar d. Note: The front of the machine cannot be r emoved com- pletely , only pulled forward a few inches.
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 11.. Beginning at the right side of the machine remove plugs J10A and J10B.
F-55 F-55 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 14. Using a 3/8” nut driver remove the four mounting nuts from the four corners of the control boar d.
17. Replace the four 3/8” mounting nuts at the cor- ners of the board. 18. Replace plugs #J3, #J4, #J5, #J6, #J7, #J8, #J9, #J10B, and #J10A previously r emoved. 19. Using a 5/16” nut driver , replace the metal plate on the top of the machine that holds the case front assembly to the center panel.
DISPLA Y BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V350-PRO TROUBLESHOOTING & REP AIR F-58 F-58 FIGURE F.
TROUBLESHOOTING & REP AIR DISPLA Y BOARD REMOV AL & REPLACEMENT (continued) F-59 F-59 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE F.
10. Remove plug #J37 from the display boar d. 11. Remove plug #J3 originating from the contr ol board located dir ectly across fr om the display board. 12. Remove the display board. Note: Gentle prying from behind the boar d may be requir ed. 13. Replace the display board.
MAIN SWITCH BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
PROCEDURE 1. Remove the input power to the V350-PRO. 2. Using a 5/16” nut driver remove the case wrap- around cover . 3. Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section. Observe static precautions detailed in PC Board T roubleshooting Procedures at the beginning of this section.
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-63 F-63 FIGURE F.24 – 3/16” ALLEN BOLT LOCATION FIGURE F.
NOTES F-64 F-64 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
MODE BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-66 F-66 FIGURE F.
TROUBLESHOOTING & REP AIR F-67 F-67 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE F.
TROUBLESHOOTING & REP AIR F-68 F-68 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MODE BOARD REMOV AL AND REPLACEMENT (continued) FIGURE F.
TROUBLESHOOTING & REP AIR F-69 F-69 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MODE BOARD REMOV AL AND REPLACEMENT (continued) FIGURE F.
NOTES F-70 F-70 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
ST A TUS BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-72 F-72 FIGURE F.
V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-73 F-73 ST A TUS BOARD REMOV AL AND REPLACEMENT (continued) 5.
10. Remove plug #J311 and plug #J31 from the sta- tus board. 11. Remove plug #J37 originating from the display board located dir ectly above the status board. 12. Remove the status board. Note: Gentle prying from behind the boar d will be requir ed. 13.
SNUBBER BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
PROCEDURE 1. Remove input power to the V350-PRO. 2. Using a 5/16” nut driver remove the case wrap- around cover . 3. Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section. 4. Locate the snubber board.. See Figur e F .
POWER BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician or machine operator and will invalidate your factory warranty .
PROCEDURE 1. Remove input power to the V350-PRO. 2. Using a 5/16” nut driver remove the case wrap- around cover . 3. Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section. 4. Locate the power board. See Figur e F .34.
5. Locate the thr ee plug connections. J41, J42 and J43. See figure F .35. 6. Carefully r emove the three plugs fr om the power board. 7. Remove the four screws and associated washers at the corners of the board using a flathead screw- driver . Board is r eady for removal.
NOTES F-80 F-80 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
TROUBLESHOOTING & REP AIR F-81 F-81 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC .
PROCEDURE 1. Remove input power to the V350-PRO. 2. Using a 5/16” nut driver remove the case wraparound cover . 3. Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section. 4. Locate the input rectifier . See figure F .
9. Apply a thin coat of Penetrox A-13 heatsink com- pound to the point of contact between the input rectifier and the mounting surface. 10. Secur e the new input bridge into its proper posi- tion with the two 3/16”in. allen mounting screws previously r emoved.
NOTES F-84 F-84 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
F-85 F-85 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESH.
PROCEDURE 1. Remove input power to the V350-PRO. 2. Using a 5/16” nut driver remove the case wrap- around cover . 3. Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section. 4. Locate the output rectifier modules located behind the snubber board.
8. Under the copper plate pr eviously removed, ther e is an allen bolt. Remove it using a 9/64” allen wrench. 9. Using a 7/16” socket remove the mounting bolts at the top and bottom of the modules. See Figure F .39. 10. The output rectifier modules ar e r eady for r emoval and/or replacement.
NOTES F-88 F-88 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
F-89 F-89 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESH.
PROCEDURE 1. Remove input power to the V350-PRO. 2. Using a 5/16” nut driver remove the case wrap- around cover . 3. Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section. 4. Remove the caps on the two wir e feeder recepta- cles.
7. Label and remove the four leads connected to the two wire feeder cir cuit breakers. Pliers may be necessary . 8. Label and remove the two leads connecting to the CB2 circuit br eaker . Pliers may be necessary . 9. Label and remove the seven leads fr om the reconnect panel.
14. The back of the machine may now gently be pulled away to gain access to the current trans- ducer . Note: The rear of the machine cannot be removed completely . 15. Carefully swing the r ear of the machine open to the right while facing the rear of the machine.
24. Replace the current transducer . 25. Replace the two 3/8” mounting nuts previously removed. 26. Reconnect plug #J90 to the current transducer . 27. Replace any necessary cable ties previously cut. 28. Replace the output diode heatsink assembly pr e- viously removed using a 3/8” wr ench.
TROUBLESHOOTING AND REP AIR RETEST AFTER REP AIR F-94 F-94 V350-PRO Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Re.
G-1 ELECTRICAL DIAGRAMS G-1 T ABLE OF CONTENTS -ELECTRICAL DIAGRAMS SECTION- ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION G WIRING DIAGRAM . . . . . . . . . .
ELECTRICAL DIAGRAMS G-2 V350-PRO WIRING DIAGRAM - INVERTEC V350-PRO FAN FR O NT O F M A CH IN E MAIN XFMR 205 201 2. F OR MACHINES NOT SUPPL IED WITH INPUT CABLE FOR SIN GLE PH ASE I NPUT: GR OUND MACHINE PER NATIONAL AND LOCAL ELECTRICAL CODES. CONNECT TERMINALS U & W TO SUPPLY CIRCUIT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-3 V350.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-4 V350.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-5 V350.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-6 V350-PRO SCHEMA TIC - CONTROL PC BOARD #3 AD_DATA[0:13] SAW TOOTH GENERATOR PRIMARY CURRENT SHUTDOW N 0.
ELECTRICAL DIAGRAMS G-7 V350-PRO SCHEMA TIC - CONTROL PC BOARD #4 BD ID=03 D D D GSPI D D D D D D D D D D D D D D R173 10.0K R91 10.0K R92 10.0K R93 10.0K R94 10.0K R95 10.0K R96 10.0K R97 10.0K R98 10.0K R83 475 R86 475 R182 4.75k R201 10.0K R184 4.75K R104 10.
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-9 V350-PRO SCHEMA TIC - POWER SUPPL Y PRINTED CIRCUIT BOARD .
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
ELECTRICAL DIAGRAMS G-11 V350-PRO SCHEMA TIC - SWITCH PRINTED CIRCUIT BOARD G-11 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-13 V350-PRO SCHEMA TIC - DISPLA Y PRINTED CIRCUIT BOARD G-13 NOTE: This diagram is for reference only .
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-15 V350-PRO SCHEMA TIC -ST A TUS PRINTED CIRCUIT BOARD G-15 NOTE: This diagram is for reference only .
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-17 V350-PRO SCHEMA TIC - MODE SELECT PRINTED CIRCUIT BOARD G-17 NOTE: This diagram is for reference only .
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-19 V350-PRO SCHEMA TIC - REMOTE PRINTED CIRCUIT BOARD G-19 NOTE: This diagram is for reference only .
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
ELECTRICAL DIAGRAMS G-21 V350-PRO SCHEMA TIC-SNUBBER PRINTED CIRCUIT BOARD S24761 6-2-2000 G-21 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
SVM ERROR REPORTING FORM We need to know if there are errors in our manuals. W e also value any suggestions as to additional tests or procedures that would make this SVM a better tool for you.
An important point after buying a device Lincoln Electric SVM152-A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lincoln Electric SVM152-A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lincoln Electric SVM152-A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lincoln Electric SVM152-A you will learn all the available features of the product, as well as information on its operation. The information that you get Lincoln Electric SVM152-A will certainly help you make a decision on the purchase.
If you already are a holder of Lincoln Electric SVM152-A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lincoln Electric SVM152-A.
However, one of the most important roles played by the user manual is to help in solving problems with Lincoln Electric SVM152-A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lincoln Electric SVM152-A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
