Home

Lincoln Electric V350-PRO User's Manual

1. NB N G NM 5 PLACES NK 4 PLACES NN 2 PLACES NH 2 PLACES NJ 8 PLACES R 045 pui 275 25 10 2 CRIMP HEIGHT NON COMPONENT SIDE EYELET DETAIL MANUFACTURED AS G3830 1B1 IDENTIFICATION CODE PART NO NOTES NA CAUTION THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY LINCOLN ELECTRIC TO SEE E2454 BEFORE HANDLING N B SNAP POWER TERMINALS INTO COMPONENT SIDE OF BOARD N C THIS AREA TO BE COVERED ON BOTH SIDES OF BOARD WHERE POSSIBLE WITH SEALANT PRIOR TO ENCAPSULATION N D INJECT SEALANT ITEM 8 THROUGH THE PC BOARD TO SEAL MODULE LEADS 16 PLACES AND ALL COMPONENT LEADS ON THE NONO COMPONENT SIDE OF THE BOARD THAT ARE COVERED BY MODULE CASE N E FEMALE EYELET TO BE AGAINST THE NON COMPONENT SIDE AS SHOWN EYELET MUST NOT SPIN AFTER CLINCHING N F SOLDER EYELET SO THAT SOLDER COVERS ENTIRE EYE
2. 10 0 252 vIOVVA q AVS Mel as VeCSZSWA THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U SA MANUFACTURING TOLERANCE 2 o f Chg Sheet No DESIGN INFORMATION REFERENCE EQUIPMENT TYPE INVERTER WELDERS 9 pm UR SUBJECT DIGITAL CONTROL SCHEMATIC K amp ae reno __________ __ 12 15 99 DRWNGNo 3789 100 4 Return to Section TOC Return to Master TOC NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual V350 PRO me ELECTRICAL DIAGRAMS Bk PC BOARD ASSEMBLY CONTROL 25001 3321SMT_ 525001 22125 SRES 3 32K_1206 1 1 8W NPLAMZ R123 R128 R129 R179 3 SRES 22 1K 1206 1 1 8W TRNP R37 R38 R35 R203 RB RID 6 9 NJ veu DIGITAL CONTROL BLANK 525001 47855 5 5 475 12061 BW TRNP R3R2 25001 4753SMT SRES 475K 1206 1 1 8W TRNP R100 5 5205380 525001 10038 SRES 100K 1206 1 1 6W 200PPM 855 R111 R49 R108 R115 R124 R142 R208 E2527 EPOXY ENCAPSULATION RESIN 100K 1206 1 1 8W R207 R106 E3539 1 ELECTRICAL INSULATING COM
3. ITEM REQD PART NO IDENTIFICATION C1 23 2 520500 4 CAPACITOR PPMF 0047 1000V BOX 10 11 2 513490 130 0 27 50 5 2 24 2 520500 7 047 1600 1096 25 26 2 111577 57 0 1 400 10 18 2 813490 93 _ CAPACITOR TAEL 27 35V 10 631 032 2 516668 7 820 50 5 4 21 2 520500 1 0 1 1000 10 C5 C6 C15 C16 4 S16668 6 4700 50 1096 7 12 13 14 20 027 28 9 1516668 5 _ 022 50 20 C29 C30 C8 C9 C22 3 S16668 9 150 100 5 CR1 CR2 2 814293 18 RELAY DPST 12VDC AG CDO D1 D4 D16 D17 4 T12705 59 DIODE AXLDS 3A 600V UFR D7 D8 D9 D12 D14 D18 D19 9 12199 1 DIODE AXLDS 1A 400V D20 D21 DZ1 DZ2 DZ3 DZ5 DZ6 DZ15 10 12702 29 2 DIODE 1 15 5 1 4744 DZ16 DZ18 DZ19 DZ23 DZ11 DZ22 2 112702 2 ZENER DIODE 1W 20V 5 1N4747A 24 027 0217 0220 4 T12702 40 2 DIODE 1W 6 2V 5 1N4735A 028 1 _ 12702 19 ZENER DIODE 1W 12V 5 1N4742A DZ9 DZ10 DZ12 DZ13 4 T12702 45 ZENER DIODE 1W 18V 5 1N4746A 220 121 2 5240168 CONNECTOR MOLEX MINI PCB RT L 8 PIN 022 1__ 524016 4 4 2 0 3
4. c21 017 1000V PRIMARIES TRANSFORMER IN mM NOTE 202 203 206 amp 207 BOLT ON WITH FILTER CAPS 207 INPUT RECTIFIER 168 Return to Section Return to Master TOC NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual LINCOL V350 PRO Return to Section Return to Master TOC Return to Section TOC Return to Master TOC wn 8 B Return to Section EF o 8 gt Return to Master TOC PC BOARD ASSEMBLY SWITCH ELECTRICAL DIAGRAMS ND 16 PLACES O 4 PLACES
5. Return to Section TOC Return to Master TOC OOOOOO 5 00000 T o n E ET sss 525080 25 SLED GRN 1206 TRNP 111088 1 BB s 8 I or i
6. 2 oll 8 Welder Output T Input Power 1 Terminal Screws NS 9 O switch Screws M e N gt 818 5 E 5 16 Screws gc V350 PRO LINCOLN 5 53 53 TROUBLESHOOTING REPAIR CONTROL BOARD REMOVAL AND REPLACEMENT continued FIGURE F 18 METAL PLATE LOCATION Retum to Section TOC Retum to Master TOC 5 16 Screws Metal Plate Retum to Section TOC Retum to Master TOC 9 Using a 5 16 nut driver or a flathead screwdriver CAUTION remove the metal plate on the top of the machine that holds the case front assembly to the center panel There are two nylon cable ties that will Observe static precautions detailed in need to be cut in order for the metal plate to be Board Troubleshooting Procedures the removed See Figure F 18 beginning of this section Retum to Master TOC 5 8 9 10 The control board is now accessible to replace 8 The front of the machine may now gently be pulled forward to gain access to the Control Board Note The front of the machine cannot be removed com pletely only pulled forward a few inches Return to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Y 4 2
7. OUTPUT_ON DATA 0 15 1015 1016 DISABLE 455 10178 gt 4 4a 30701 AVS LEZSZSWN _ Q6 3 Vi WhoisE Vb THERMOSTA INT 1 MANUFACTURING TOLERANCE PER E2056 EQUIPMENT TYPE INVERTER WELDERS emo emen ESIS EOF ADEGREE SUBJECT DIGITAL CONTROL SCHEMATIC ED STANDARDS ___ Cr EL DATEI2 15 99 DRWNGNo G 3789 100 1 NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual Return to Section TOC Return to Master TOC V350 PRO Return to Section Return to Master TOC Return to Section TOC Return to Master TOC Ojo ojo Ele lt BIZ o o Return to Section TOC Return to Master TOC G 5 SCHEMATIC CONTROL PC BOARD 2 ae 7 gt gt R1 2 21K C1 v LED1 278 D 4TuF GREEN 16698151 CR gt R31 NOISE GND C9 2 21K ABI LED2 ZN AS 4 7uF XZ GREEN 16658161 35V 063 516 MC79LOSABD 2 14 PW1 X10 74 14 14 7 2 X30 74 14 7 441 X gt 100K C10 LEDS V 9 c 4TuF A GREEN ozesawst W
8. OO 100000000 Return to Master Return to Section TOC 1 i 6121 R198 8252 R253 R195 R194 R41 R11 R83 RBS R166 R165 R21 825001 47505 SRES 475 1206 1 1 8W TR NP R15 R20 R88 R81 R14 R9 R17 R19 R10 R18 R16 R141 R138 R119 R116 R85 R84 R40 R36 R190 R192 R182 R184 R137 R146 R209 R210 8222 R42 R46 R47 R51 R67 COMPONENT SIDE 25003 2000SMT_ SRES 200 2512 5 1W TR NP R132 R133 25001 1501SMT SRES 1 5K 1206 1 1 8W NP_ R113 R118 R122 R74 R76 R80 R78 525001 75005 SRES 750 1206 1 1 8W NP R183 525001 51105 SRES 511 MF 1206 1 1 8W TR R24 R23 525001 10045 SRES 1M 1206 196 1 8W TR 9X0098 R212 R211 525001 26725 SRES 26 7K THK 1206 196 1 8W 10 R187 R114 R120 R72 BUY AS NOTES L11088 1D0 N A CAUTION THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY LINCOLN ELECTRIC TO SEE E2454 BEFORE HANDLING PART NO IDENTIFICATION CODE BOARD ASSEMBLY IN PLACE WITH ITEM 3 TOP OF THESE COMPONENTS MUST BE FREE OF POTTING MATERIAL IDENTIFY COMPLETE ASSEMBLY WITH A PRINTED LABEL PER E3867 THERE ARE COMPONENTS ON BOTTOM SIDE OF P C BOARD PROGRAM 89 wiTH ITEM 6 PROGRAM 98 WITH
9. X6 Pin 11 Return to Section TOC Return to Master TOC NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual LINCOLN amp V350 PRO Return to Section Return to Master TOC Return to Section TOC Return to Master TOC wn 8 B Return to Section o o 2 8 gt 2 Return to Master TOC G 14 PC BOARD ASSEMBLY DISPLAY ELECTRICAL DIAGRAMS CIS RII LES me 7 Oct et Lore 111132 2 CS7ID2 DSPS 0595 0597 5686 Ss ENCAPSULATE WITH HUMISEAL 1A27LU E1844 OR WITH EQUIVALENT AS APPROVED BY LINCOLN ELECTRIC COMPANY 2 COATS G 14 PART NO DESCRIPTION DESIGNATOR G3656 C DISPLAY PC BOARD BLANK L11166 1 FLEX CIRCUIT T15176 2 LED SPACER 0 140 HIGH E3539 ELEC INSUL COMPOUND 0102 FOR ITEMS BELOW REFER TO ELECTRONIC COMPONENT DATABASE FOR COMPONENT SPECIFICATIONS 525020 35 CAPACITOR SMD CERAMIC 0 1MF 50V 1096 X 2 3 4 5 11 12 19 20 525020 95 ICAPACITOR SMD CERAMIC
10. Section F How to Use Troubleshooting Guide F 2 E PC Board Troubleshooting Procedures and F 3 Troubleshooting Guide wis ceti pee m t e ee i e ER ee F 4 Test Procedures Input Filter Capacitor Discharge Procedure F 15 Main Switch Board Test tc ec ones ta cer a E e d F 17 Input Rectifier 21 Power Board Test eite ec e i Lu T a F 25 Output Diode Modules Test emen F 29 Auxiliary Transformer at e n eda E Lian Ped M EL rh Loci oua F 33 Current Transducer F 37 8 Fan Control and Motor Test cce E Ra eee RU e Eco F 41 SPI Cable Resistance and Voltage Test emen F 45 Voltage and Current Calibration F 47 Replacement Procedures Control Board Removal and 02 F 51 E Display Board Removal and 1 2 0 01 F 57 8 Main Switch Board Removal F 61 Mode Board Removal and Replacement F 65 Status Board Removal
11. PERIPHERAL COM V JENERAL INFORMATION LAST NO USED D R MBOLS PER E1537 Rs 5 PACITORS 022 50V UNLESS mo T4 RESISTORS Ohms 1 4W UNLESS a 16 DIODES 1A 400V UNLESS OTHERWI 01 x15 330740 DG201ADY V 16 6 3 0G201ADY DG201ADY 4 SUPPLY VOLTAGE NET a E c20 Vad 5 il 1 D esp V 1 T power suPPLy source W Now 3100 14 precum um HC1510 1 1 77260 HC3680 MCi4489DW TO AMPHENOLS UA _ 510 an Am EARTH GROUND CONNECTION LM THE LINCOLN ELECTRIC TYPE MISC CLEVELAND OHIO U S A SUBJERT SPI REMOTE SCHEMATIC COMPONENTS OR CIRCUITRY ON PRINTED CIRCUIT BOARD MAY CHANGE 5 002 01 THOUT AFFECTING THE INTERCHANGEABILITY OF COMPLETE BOARD THIS DIAGRAM MAY SCALE NONE NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING amp COMMON CODE 0 BK 0 0_ 05 24 00 5 3708 NUMBE WITH PUBLISHED STANDARDS 3 ST Return to Section Return to Master TOC NOTE This diagram is for reference only It may not be accurate for all machines covered by thi
12. ozesawst X GREEN 35V LED6 oza ASL 1699 51 V NOISE GND ADDR 1 18 MODEO INT RESET WRH P2 7 INT P2 6 ADO AD1 AD2 AD4 MOSI Al 05 P1 3 AD11 AD6 SCLK P1 4 AD12 AD7 P1 5 AD13 39 P1 6 AD14 P1 7 AD15 VSS1 FULL DUPLEX RS232 COMMUNICATION LIN R194 45 LA ZUINOO 9L DATA 0 15 C N COMMUNICATION CIRCUITRY C121 R196 BUSS_H bos Vb ISOLATION THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A Ese peser esser bee a 5 26 _____ NOTE This diagram is for reference only It may not be accurate for machines covered by this manual GCAN 485 TRANSCEIVER 08668151 Vocan COMMUNICATION CIRCUITRY INVERTER WELDERS DIGITAL CONTROL SCHEM
13. C 3 LN 25 with K431 Remote 0 04 0010000 nennen nne C 4 V350 PRO LN 25 with K867 020 C 5 V350 PRO LN 7 with K480 Control Cable 2 102000 400 000401040101 nnn C 6 V350 PRO LN 7 with K867 2 C 7 V350 PRO LEN 742 iti pue rn ete Vonks rv tat t ah rra E dee bt L a D C 8 V350 PRO LN 10 with K1505 Control Cable 01 10 nmn C 9 6 NEUEM 10 0 5 0 REL EDU XR FLIRT da oe Gain C 10 8 x 4 2 4 2 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC C 2 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 required by the electrode Connect the work lead to the other terminal Welding cable must be sized for current and duty cycle of the
14. Machine Control Shut Down Capacitor DC Input lt 15Volts 100Amp 33W Operati Undervoltage 9055 VDC Detect lt 30VDC 023 104 E Return to Section TOC Return to Master TOC R34 221K 15Volts 250Amps SPI Overvoltage Shutdown 1 55VDC D eov 5Volts 3 Amps SPI gt 5Volts 100 Amp 20Volts DO 200 Amps Gate Drive Ojo ojo Ele lt BIZ o o 20Volts 200 Amps Gate Drive 5Volts 100 Amp RS232 g
15. 1 44 Return to Section Return to Master TOC DSACK PE1 pe 45V 3 LEVEL IN 112 4 RMGPE3 TAS ASIPE4 R487 IRLR120N DS DS PES R84 2 99 Q9 5 SOFTS 5120 PE6 475 nyo ADDR1 40 ADDR2 4 Im Dun 43 ADDR5 44 ADDR6 46 ADDR8 49 ADDR9 50 ADDR10 5 ADDR11 52 ADDR12 56 ADDR13 57 60 ADDR16 63 ADDR17 D4 D FREEZE IFETCH DSI IRES R11 R41 J T Raw E X0 79 ANA LEVEL IN NOSE sie sic FPGA DONE DONE 112 9 ao 115 LECSZSWW ZNDS 5121 3 _ MS gr3 ps eese peur BIER IE ero uooctx NORMA Vb HER ToU PFY IRQI 4 5V FAULT NOISE GNDV FAULT INT 99 2 2 22 1K FPGA INT 1 00k R136 CAPA OV PF4 IRQ4 OISE GND INT CAN V FPGA BAD AD 96 IRQ5 PFE IRQ6 IRQ7 lt FAULT SIGNAL TPUCH1 A19 7 DSP RESETS TPUCH2 4 57 20 3 vpp CTRL gt 4 100K Q10 RED PESCE A21 ADDR1 x 3 199 70 71 LED7 22 9 CADDR2 1340 TN 10A t0ov 9658
16. NE D 3 Major Component locations etie ie re E cep x nad te da D 4 0 2 8 5 1 4 8 B 2 8 i 4 8 0 2 8 i V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC MAINTENANCE WARNING Have qualified personnel do the maintenance work Always use the greatest care when working near moving parts Do not put your hands near the cooling blower fan problem cannot be corrected by following the instructions take the machine to the nearest Lincoln Field Service Shop ELECTRIC SHOCK kill Do not touch electrically live parts or electrode with skin or wet clothing e insulate yourself from work ground Always wear dry insulating gloves EXPLODING PARTS can cause Failed parts can explode or cause other parts to explode when power is applied Always wear a face shield and long sleeves when ser vicing See additional warning information throughout this operators manual INPUT FILTER CAPACITOR DISCHARGE PROCEDURE 1 Remove the input power to the V350 PRO 2 Using the 5 16 wrench remove the screws from the case wraparound cover 3 Becareful not to make contact with the capacitor terminals located at the top and bottom of the switch boar
17. amp DSP A1 sls DSP DSP D8 DSP D9 DSP 014 DSP 010 DSP D13 DSP D12 DSP D11 AD DATA11 AD DATA13 AD DATA12 10 0K R243 ANN 10 0K R93 10 0K R91 ANA 10 0K R92 10 0K R94 10 0K R95 10 0K R96 10 0K R98 39 AD DATA10 DSP A13 AD DATA9 DSP A14 AD DATA8 23 AD DATAG AD DATAS TPUS AD 4 112 J 108 CLK 8 R104 0107 Ho PPGA RECET 105 N N BAV99LT D106 N Pi pi 55 1 155 1 4 4 es PD 99 70107 p BAV99LT D104 p BAV99LT D105 BAV99LT D102 BAV99LT D103 GND1 BONES X33 Al B1 245 2 2 B3 A4 B4 A5 B5 A6 B6 A7 B7 8 7 Vb A8 B8 6 SCK3 5 MOSI B GND DIR ENABLE VCC o o 2 8 gt 2 wn 8 B SPIMOSI MSELEN FPGA DONE 7104 09 09 00 CO THERMAL LED TURN OFF lt 3 lt 1
18. 100 3 DEGREE TO AGREE Ojo ojo Ele lt BIZ o o Rr 02 3 33K 5 3 1 n3 Le x 1 m SW 3074A 02 pee R38 WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD THIS DIAGRAM MAY NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING COMMON CODE NUMBER SINCE COMPONENTS OR CIRCUITRY ON PRINTED CIRCUIT BOARD MAY CHANGE ON HOLES SIZES PER 2056 ON 2 PLACE DECIMALS 15 02 WITH PUBLISHED STANDARDS ON 3 PLACE DECIMALS 15 002 ON ALL ANGLES IS AND IS NOT BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS PERMISSION OF THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY UNLESS OTHERWISE SPECIFIED TOLERANCE MATERIAL TOLERANCE 10 0K T FILTER LO i p on 8 TW 33075 047 l i o0v 15V B R135 TOOK R127 865 3X 3 200 C23 R126 002 L 0047 33K 54 ENTIS 1000V 1 4 e 7 j FORN a LEER CAPACITOR 207
19. loo 022 109 50V R19 Dout HC368A EOC z GSPI CAL REMOTE 10 0K 19 x3 Vref NOTE RIGHT LED PAIR TELLS OPERATOR THE STATUS OF THE OUTPUT ER RED HOT STUD GREEN REMOTE TONTROLLED 7 LEFT LED PAIR INDICATES THE CONTROL MODE RED LOCAL GREEN REMOTE 35V 1 1 GSP MC14489 16 19 14 R25 vag E ne ls 145051 51 d R24 TOOK een amp lin ts gt 6 Ojo ojo Ele LEES BIZ o o if Vcc x5 01 01 X3 X7 145051 HC368A GENERAL INFORMATION LAST NO USED Vss GND R 27 LED 16 i ELECTRICAL SYMBOLS PER E1537 e CAPACITORS MFD UNLESS OTHERWISE SPECIFIED C 27 7 RESISTORS Ohms UNLESS OTHERWISE SPECIFIED LABELS 2 9 5 2 NOTES DIODES UNLESS OTHERWISE SPECIFIED SUPPLY VOLTAGE NET N A SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD THIS DIAGRAM MAY POWER
20. VA 1 8 111016 Y le 0 1uF OVR CUR 1 C23 0 1uF 7 R114 A V 9 4 MC33074AD VIOVVL R125 15V 4 MC33074AD C57 0 1uF a OFF gt 4 4 5VA 15V GND n 4170 OLTAGE FEEDBAC 4 MC33074AD R138 E 1 11 15 1 lt GAIN lt 11 IDEAL V_AD 2 5V 70 ArcVOLTS SDI_AGND4 AD8403ARU10 Vasey Vb on STT FLOW STT 4401 32 018 4 STT CURRENT FLO I gt 56A 1 lt 56 LO THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A TOS ORANG NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual J EQUIPMENT TYPE INVERTER WELDERS been DIGITAL CONTROL SCHEMATIC m DATEI2 15 99 DRAWING Mo G 3789 100 3 G 6 V350 PRO ot ELECTRICAL DIAGRAMS CONTROL PC BOARD 4 0 1uF C138 0 1uF C139 0 1uF C114 0 1uF C84 Return to Master TOC
21. iim LEFT SIDE V350 PRO LINCOLN 5 33 33 TROUBLESHOOTING REPAIR AUXILIARY TRANSFORMER TEST A WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This procedure will determine if the correct voltage is being applied to the primary of auxil iary transformer and also if the correct voltage is being induced on the secondary windings of the transformer Retum to Section TOC Retum to Master TOC MATERIALS NEEDED Volt ohmmeter Multimeter 5 16 Nut Driver Wiring Diagram This procedure takes approximately 25 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 34 34 TROUBLESHOOTING REPAIR AUXILIARY TRANSFORMER TEST continued 5 FIGURE 8 Auxiliary Tr
22. ENGINEER T ODONNEL SUPERSEDING WITH PUBLISHED STANDARDS SCALENONE DATE4 6 99 DRAWNGNo 11088 1 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 not available from Lincoln Electric This information is pro vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the LINCOL ine 50 Return to Section Return to Master TOC ELECTRICAL DIAGRAMS SCHEMATIC POWER SUPPLY PRINTED CIRCUIT BOARD Machine Control Power Supply 5Volts 750 Amp Return to Section TOC Return to Master TOC 10 55 VDC Operation D22 1 KE a 15Volts 750 Amp DC Input
23. 5 4 Retum to Master F 54 11 12 F 54 TROUBLESHOOTING amp REPAIR CONTROL BOARD REMOVAL AND REPLACEMENT continued Beginning at the right side of the machine 13 Working your way down the left side of the board remove plugs J 10A and J 10B Note Be sure to remove plugs 4 and 3 See Figure F 19 label each plugs position upon removal See Figure F 19 Working your way across the top of the board from right to left label and remove plugs 389 3 8 7 46 and 5 See Figure F 19 FIGURE F 19 CONTROL BOARD PLUG LOCATION V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 55 F 55 TROUBLESHOOTING amp REPAIR CONTROL BOARD REMOVAL AND REPLACEMENT continued 14 Using a 3 8 nut driver remove the four mounting 16 Replace the control board nuts from the four corners of the control board See Figure F 20 15 Remove the control board Note Gentle prying from behind the board using a flathead screw driver may be required FIGURE F 20 CONTROL BOARD MOUNTING SCREW LOCATION Mounting Screws V350 PRO LINCOLN 5 56 56 TROUBLESHOOTING amp REPAIR CONTROL BOARD REMOVAL AND REPLACEMENT continued 17 Replace the four 3 8 mou
24. Welder Output Terminal Screws Input Power Switch Screws 5 16 Screws V350 PRO LINCOLN 5 74 74 TROUBLESHOOTING REPAIR STATUS BOARD REMOVAL AND REPLACEMENT continued 10 Remove plug 311 and plug 31 from the sta 16 Replace the four phillips head screws removed tus board from the front of the machine located around the two welder output terminals Retum to Master TOC 11 Remove plug 37 originating from the display board located directly above the status board 17 Replace the six phillips head screws and their washers from around the input power switch Retum to Section TOC 12 Remove the status board Note Gentle prying from behind the board will be required 18 Using a 5 16 nut driver replace the four screws previously removed from the front of the machine 13 Replace the status board 19 Replace the case wraparound cover 14 Replace plug 37 previously removed 15 Replace plug 31 and plug 311 previously removed Retum to Section TOC Retum to Master TOC Retum to Master TOC 5 8 9 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 75 75 TROUBLESHOOTING amp REPAIR SNUBBER BOARD REMOVAL AND REPLACEMENT A WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel Unauthorized repairs
25. 40VDC Solenoid Supply 40VDC Machine Control Supply SPI Supply 15VDC 5VDC RS232 Supply 5VDC Remote T THEORY OF OPERATION 0 FIGURE E 2 INPUT VOLTAGE AND g 5 5 To Control Main Switch Board Board 918 2 Positive 8 8 Input switch Input Output E E amp 100A Breaker Rectifier Terminal 8 5 lt gt Negative cic Output Lis Switch Terminal 2 o 02 2 Supply Input Relay Control gt Auxiliary Soft Start Control 8 115VAC 42VAC Transformer 8 Capacitor Feedback 2 Control Board SPI Communications 15VDC 5VDC Supply Status Panel Display Panel Mode Panel Board Remote Control amp Trigger GENERAL DESCRIPTION The Invertec V350 Pro is an inverter based welding power source that offers multi mode constant voltage and constant current CC welding and is rated at 350 amps 34VDC at a 60 duty cycle The Invertec V350 Pro is available in either a construction version no wire feeder connection or auxiliary power and a factory version that includes a wire feeder connection and related power INPUT LINE VOLTAGE AUXILIARY TRANSFORMER amp PRECHARGE The Invertec V350 Pro can be connected for a variety of three phase or single phase input voltages The ini tial power is applied to the V350 thro
26. 3 If the problem persists replace the suspect board using standard practices to avoid static electrical damage and electrical shock Read the warning inside the static resistant bag and perform the following procedures PC Board can be damaged by static electricity Remove your body s static charge before opening the static shielding bag Wear an anti sta tic wrist strap For safety use a Aa ATTENTION ps Static Sensitive 1 Meg ohm resistive cord con Devices nected to a grounded part of the Handle only at equipment frame If you don t have a wrist strap Workstations touch unpainted grounded part of the equipment frame Reusable Keep touching the frame to Container prevent static build up Be sure Do Not Destroy not to touch any electrically live parts at the same time Tools which come in contact with the PC Board must be either conductive anti static or static dissipative Remove the PC Board from the static shielding bag and place it directly into the equipment Don t set the PC Board on or near paper plastic or cloth which could have a static charge If the PC Board can t be installed immediately put it back in the static shielding bag e f the PC Board uses protective shorting jumpers don t remove them until installation is complete If you return a PC Board to The Lincoln Electric Company for credit it must be in the static shielding bag
27. 5 3 Retum to Master SAFETY PR CAUTIONS DE S RET B Pour votre propre protection lire et observer toutes les instructions et les pr cautions de s ret specifiques qui parraissent dans manuel aussi bien que les pr cautions de s ret g n rales suiv antes S ret Pour Soudage A L Arc 1 Protegez vous contre la secousse lectrique Les circuits l lectrode et la pi ce sont sous tension quand la machine souder est en marche Eviter toujours tout contact entre les parties sous tension et la peau nue ou les v tements mouill s Porter des gants secs et sans trous pour isoler les mains Faire tr s attention de bien s isoler de la masse quand on soude dans des endroits humides ou sur un plancher met allique ou des grilles metalliques principalement dans les positions assis ou couch pour lesquelles une grande partie du corps peut tre en contact avec la masse Maintenir le porte lectrode la pince de masse le c ble de soudage et la machine souder en bon et s r tat defonc tionnement d Ne jamais plonger le porte lectrode dans l eau pour le refroidir Ne jamais toucher simultan ment les parties sous tension des porte lectrodes connect s deux machines souder Eloigner les mat riaux inflammables ou les recouvrir afin de pr venir tout risque d incendie d aux tincelles Quand on ne soude pas poser la pince une endroit isol de la masse Un court
28. A Pin 1 lead 801 to Pin 6 lead 806 should read 2 4 VDC machine loaded to 300 amps If for any reason the machine cannot be loaded to 300 amps Table F 5 shows what feedback voltage is produced at various cur rent loads 11 If the correct supply voltages are applied to the current transducer and with the machine loaded the feedback voltage is missing or not correct the current transducer may be faulty Before replacing the current transducer check the leads and plugs between the control board 8 and the current transducer 90 See The Wiring Diagram For access to plug J 90 and the current transducer refer to Current 12 Remove input power to the V350 PRO 13 Replace the control box top and any cable ties previously removed 14 Install the case wraparound cover using the 5 16 nut driver V350 PRO LINCOLN 5 40 NOTES LINCOLN V350 PRO F 40 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 41 41 TROUBLESHOOTING AND REPAIR FAN CONTROL AND MOTOR TEST WARNING Retum to Section Retum to Master TOC 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 you
29. F 16 TROUBLESHOOTING amp REPAIR INPUT FILTER CAPACITOR DISCHARGE PROCEDURE continued A WARNING ELECTRIC SHOCK can kill Have electrician install and service this equipment Turn the input power off at the fuse box before working on equipment Do not touch electrically hot parts Prior to performing preventative maintenance perform the following capacitor discharge procedure to avoid electric shock DISCHARGE PROCEDURE 1 Remove the input power to the V350 PRO 2 Using the 5 16 wrench remove the screws from the case wraparound cover 3 Becareful not to make contact with the capacitor terminals located at the top and bottom of the switch board 4 Obtain a high resistance and high wattage resistor 25 1000 ohms and 25 watts minimum This resistor is not with the machine NEVER USE A SHORTING STRAP FOR THIS PROCEDURE Locate the eight capacitor terminals shown in fig ure F 1 Using electrically insulated gloves and pliers hold the body of the resistor with the pliers and con nect the resistor leads across the two capacitor terminals Hold the resistor in place for 10 sec onds DO NOT TOUCH CAPACITOR TERMINALS WITH YOUR BARE HANDS Repeat the discharge procedure for the other three capacitors Check the voltage across the terminals of all capacitors with a DC voltmeter Polarity of the capacitor terminals is marked on the PC board above the terminals Voltage should be zer
30. THE LINCOLN ELECTRIC CO gt 6 2 2000 RIGHT DISPLAY Ch ge Sht No DATA OUT BANK BANK2 BANK HC368D HC3680 ENABLE BANK z TEED on DATALIN yj CLOCK Rx Ojo ojo Ele lt BIZ o o X3 DISP2 LEFT DISPLAY BLOCK 1 1 1 LOGIC TABLE BOARD 1D 0000010 16 6 6 3 3 3 Vcc Vcc INPUTS OUTPUTS G3 HC368D x2 01 5 X6 x1 1 1510 20 1650 MC144890W MC144890W MC14489DW 755 ce GND GND GND Vss Vss Vss li p NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING COMMON CODE WITHOUT AFFECTING THE INTERCHANGEABILITY OF COMPLETE BOARD THIS DIAGRAM MAY NUMBER SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE ON HOLES SIZES PER 2056 ON 2 PLACE DECIMALS S 02 WITH PUBLISHED STANDARDS MC14489DW ON PLACE DECIMALS 15 002 ON ALL ANGLES 18 5 OF DEGREE AND IS NOT TO REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS PERMISSION OF THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY UNLESS OTHERWISE SPECIFIED TOLERANCE MATERIAL TOLERANCE TO AGREE gt
31. specification then proceed to the Voltage Calibration 10 If the ammeter does not meet the specification then proceed to the Current Calibration NOTE Before attempting to calibrate the voltage or current setting of the V350 PRO be sure to read the entire voltage or current calibration section If the steps are not completed quickly the machine will automatically leave the calibration mode with out changing the calibration settings The voltage and current calibration settings of the V350 PRO are completely independent of each other Adjusting one will not affect the other V350 PRO VOLTAGE CALIBRATION Connect the resistive load band approximate ly 087 ohms and test voltmeter to the welding output terminals Press and hold in the Mode Select button Turn on V350 PRO Rotate the Output Control knob until the dis play reads vol cAL Release the Mode Select button Adjust the output control knob until the actual output voltage reading on the test volt meter is 20volts 5 volts Wait for the machine s output to be automati cally turned off and then back on Adjust the Output Control knob again if neces sary to make the actual voltage output 20 volts 5 volts Wait for the machine s output to be automati cally turned off and then back on Repeat the above two steps if necessary Press and release the Mode Select button to save the calibration NOTE If the Mode Select button is not
32. F 92 14 15 16 17 18 F 92 TROUBLESHOOTING amp REPAIR CURRENT TRANSDUCER REMOVAL AND REPLACEMENT continued 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 Carefully swing the rear of the machine open to the right while facing the rear of the machine Snubber Perform the Board Removal Remove leads 2 and 20 from the output diode module Remove leads 4 and 40 from the other output diode module 19 20 21 22 23 Using a 3 8 wrench remove the four mounting screws from the output diode heatsink assembly Take note placement of insulation for reassembly See Figure F 42 Cut any necessary cable ties and carefully remove the heavy lead from the diode heatsink Remove the output diode heatsink assembly through the rear of the machine Remove plug 90 from the current transducer Using a 3 8 nut driver remove the two mounting nuts from the current transducer FIGURE F 42 OUTPUT HEATSINK MOUNTING SCREW LOCATION FOUR 3 8 MOUNTING BOLTS LEFT SIDE V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Y 4 2 5 4 Retum to Master F 93 24 25 26 27 28 29 30 31 32 93
33. Put the Control Select in the Module Test Local position If the problem is solved the remote control 5 The control board may be faulty device or associated circuitry may be faulty 6 The input filter capacitors may be faulty Check and replace if 4 If an error code is displayed see necessary Fault Code Explanations 7 The status panel board may be faulty Retum to Section TOC Retum to Master TOC The V350 Pro will not produce full 1 The input voltage may be too 1 Perform the Output Rectifier output low limiting the output Test capability of the machine Make certain the input voltage 2 Perform the Main Switch is correct for the machine and the reconnect switch and jumper lead configuration 3 Perform the 2 The welding current may be too high The machine will fold 4 Perform the Current back to 100 amps if the welding current exceeds 450 amps 5 If the preset function is not performing properly the status Make sure the machine is in panel board or the output Local output control If the control may be faulty problem is resolved the Remote control board or the external 6 The control board may be faulty remote control unit may be faulty CAUTION If for any reason you do not understand the test procedures or are unable to perform the test repairs safely con tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833
34. Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 59 F 59 TROUBLESHOOTING amp REPAIR DISPLAY BOARD REMOVAL amp REPLACEMENT continued FIGURE F 22 CASE FRONT SCREW LOCATION 5 16 Screws Input Power gt Switch Screws Welder Output Terminal Screws 5 16 Screws 5 Using a 5 16 nut driver remove the four 8 The front of the machine may now gently be screws from the top and bottom of the front of pulled forward to gain access to the display the machine See Figure F 22 Board Note The front of the machine cannot be removed completely only pulled forward a 6 Using a phillips head screwdriver remove the few inches six screws and their washers from around the input power switch See Figure F 22 9 The display board is now accessible to replace 7 Using a phillips head screwdriver remove the four screws from around the two welder out put terminals on the front of the machine See Figure F 22 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 60 F 60 TROUBLESHOOTING amp REPAIR DISPLAY BOARD REMOVAL amp REPLACEMENT continued 1
35. Return to Section TOC DSP DO 4 DSP 10 73 SP 2 11 74V AD 3 SP 3 12 75 DSP D4 5 76 DSP 05 16 77 DSP D6 17 78 SP 7 18 79 DSE ADCINS IO PA3 ADCIN9 IO PA2 ADCIN10 ADCIN111 ADCIN12 34 X 2 fe ADCINIS S TMS320F240 TMRCLK IOPB7 PORESET TMDIR IOPB6 7 XTAL1 CLKIN 5 2 T2PWM T2CMP IOPB4 ADCSOC IOPCO T1PWM T1CMP IOPB3 CLKOUT IOPC1 PWM9 CMP9 IOBP2 Hy XFIIOPC2 PWMB CMPB IOBP1 STT PWM7 CMP7 IOPBO 52 21 lt gt 2 1 1 4 PWM6 CMP6 S 2 PWMS CMP5 gt 1 s gt CAPA IOPC7 PWM3 CMP3 2 1 DS 2 2 PS PWMT CMP1 gt 1 READY SCIRXD IO MP MC SCITXD IO 8 1 DSP CLK ADDR12 DSP CLK MISO7 SPI LATCH7 AD od jon s os S RESERVED SPISIMO IO 5 5 SOICLK IO sca Return to Section Return to Master TOC xia i BD 0 03
36. SUBJECT ENGINEER ISUPERSEDING SWITCH P C BOARD ASSEMBLY APPROVED SCALE FULL DATE 5 II 2000 DRAWNG No G 3830 1 1 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 not available from Lincoln Electric This information is pro vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the machine V350 PRO ELECTRICAL DIAGRAMS ce SCHEMATIC DISPLAY PRINTED CIRCUIT BOARD AU 6 00 Di HCL4AD 01W 02 475 03 VIA 4 R27 100 04 01W 2 fe R26 HC165D HC368D E ie 100K 01W E i T i HCI51D 0 M HC368D HCLGAD Al 10 STROBE 9 1 HCLAAD HC14AD DATA BANK4 1 2 2 UL BANK HC14AD BANK ENABLE BANKS THERMAL LEDS 1 IN x5 A CLOCK Rx MC14489DW LEDY I LAST NO USED 2 gt Return to Section Return to Master TOC SUPPLY VOLTAGE NET POWER SUPPLY SOURCE POINT 57 COMMON CONNECTION 7
37. TROUBLESHOOTING amp REPAIR CURRENT TRANSDUCER REMOVAL AND REPLACEMENT continued Replace the current transducer 33 Replace the two 3 8 mounting nuts previously removed 34 Reconnect plug 90 to the current transducer Replace any necessary cable ties previously cut 35 Replace the output diode heatsink assembly pre viously removed using a 3 8 wrench 36 Note Be sure to place insulation in its original location 37 Replace leads 4X2 20 X4 40 previously removed from the two output diode modules 38 Torque to 30 40 inch 105 Perform the Snubber Board Replacement 39 From the rear of the machine replace the heavy 40 flex lead to the bottom of the output diode heatsink assembly using a 1 2 wrench Note Don t forget to include washers 41 The rear of the machine may now be placed back into its original position V350 PRO Using a 3 8 wrench replace leads 202 203 206 and 207A previously removed from the reconnect switches Tighten the metal nut previously removed from the inside of the rear wall on the back of the machine Channel locks may be necessary Replace the large plastic nut from around input power line located at the back of the machine Replace the seven leads to the reconnect panel in their proper locations Replace the two leads to the CB2 circuit breaker Replace the four leads to the two wire feeder cir cuit breakers Using a 5 16 nut driver replace the four s
38. external electrical detector circuit noise or signal level Make sure the V350 Pro Perform the Power is grounded correctly The machine is self clearing when There may be a problem condition ceases with the primary current sensors located on the main switch board See the wiring diagram The control board may be faulty 43 Capacitor banks A Make sure the recon There may be a problem lower and B upper nect switches are con with the V F signals from are not balanced figured for the input the main switch board to voltage being applied to the control board the machine The machine is self clearing Perform the Main Switch when condition ceases The capacitor s may faulty Check and replace if necessary 44 The machine has Make sure the V350 Pro Perform the Power detected a fault in the is grounded correctly central processing unit CPU The machine is self clearing when condition ceases The control board or associated wiring may be faulty See the wiring diagram NOTE If more than one fault message is being displayed perform all the checks for the faults before replacing the printed circuit board V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 13 TROUBLESHOOTING amp REPAIR F 1
39. 100 50V R16 V GsPI 10 melly a CONTROL Return to Master TOC Return to Section TOC gt 8 I 5 o e 5 S Zo nm om ws Dout Vref Vag MC145051 5 BOARD x0000001 js ja t gt gt gt gt gt gt gt gt gt Ul um OUTPUTS X2 Y X5 5 X3 Pin 11 MISO N HC368A un p ea e _ O45 55 1 100pF 100V d 6 FO SA C2 M zov 5 HC368A MC145051 INFORMATION LAST NO USED 7 54 ELECTRICAL SYMBOLS PER E1537 R 27 X 6 J34 l i Ojo ojo Ele lt gle BIZ o o CAPACITORS MFD UNLESS OTHERWISE SPECIFIED C 32 RESISTORS Ohms UNLESS OTHERWISE SPECIFIED E D 0 5 1 SUPPLY VOLTAG
40. 18 Replace the four allen bolts and washers previously removed Replace the eight capacitor terminal nuts washers and necessary leads previously removed Reconnect the three harness plugs previous ly removed Reconnect the nine leads 4201 4209 that were previously removed Pre torque all screws to 25 inch 105 before tightening to 44 inch Ibs Replace the case wraparound cover FIGURE F 25 NYLON MOUNTING PIN DEPRESS LOCKING TAB ON MOUNTING PIN V350 PRO LINCOLN 5 F 63 64 NOTES LINCOLN V350 PRO F 64 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 65 65 TROUBLESHOOTING amp REPAIR MODE BOARD REMOVAL AND REPLACEMENT WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting as
41. 715 15 lt 15 aa OL ALIN ID 716 16 lt CONTROL 374 2 7 29 nm v 8 J9 J42 P53 gt 5505 power down signal gt J42 4 407 407 POWERDOWN SIGNAL HIGH RUN T POWER 15 J42 1 1 412 412 J4 12 lt 15 a 5 a3 HM 115 CONTROL 5 8 gt J42 3 gt 408 408 4 8 lt 5 LES POWER GND J42 5 410 410 J4 10 lt GND 28 20 J21 UPPLY 411 41 J4 11 15V din o o 541 65B t 5 SPI b J43 t 403 403 J4 3 5 SPI b E 5 E o ca a pour 5SPI 402 402 4 2 lt 15 SPI b 58 e 532 41 6 lt 45 1 SUPPLY SPIGND b 4J43 12 401 401 lt GND SPI b 143 J331 E 2 J Rs252 5 95232 J43 4 gt 406 406 J46 lt 5 RS232 e 24 66B 41 supply Y lo o o_o o ol 25 75B GND e 39 405 405 5 GND e epo s 5 20 J43 8 1 438 J10A iB CHOPPER GND c 2 gt 432 2 8 551 Lc P554 438 SUPPLY 4200 L ATE 552 55 2 lt 431 GND d J43 1 gt 431 SB T P55 3 47 1 2 o ack of machine 76B 1 lt 55 4 2 FLEX c AB N FLEX CIRCUIT CONNECTOR CAVITY NUMBERING SEQUENCE gt CIRCUIT 1 IEWED FROM COMPO
42. Do not attempt to override the governor idler by pushing on the throttle control rods while the engine is running 2 d 3 Do not place your body between the electrode and work cables If the electrode cable is on your right side the work cable should also be on your right side AR Connect the work cable to the workpiece as close as possible to the area being welded 1 0 To prevent accidentally starting gasoline engines while turning the engine or welding generator during maintenance work disconnect the spark plug wires distributor cap or magneto wire as appropriate Do not work next to welding power source Mar 95 LINCOLN 5 Retum to Master Retum to Master TOC Y 4 2 8 5 Retum to Master TOC 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 In addition to the normal safety precautions if welding must be performed under electrically hazardous conditions in damp locations or while wearing wet clothing on metal structures such as floors gratings or scaffolds when in cramped positions such as sitting
43. LINCOLN 5 Retum to Section Retum to Section TOC 6 8 Return to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 10 TROUBLESHOOTING amp REPAIR F 10 FAULT CODES DESCRIPTION CORRECTIVE SERVICE FACILITY CORRECTIVE DEFINITION ACTION ACTION 33 Capacitor bank Make sure the reconnect There may bea problem B upper is under switches are configured with the V F signals from voltage for the input voltage the main switch board to being applied to the the control board machine The machine is self clearing when Perform the Main Switch condition ceases Perform the Power The control board may be faulty 34 Capacitor bank Make sure the reconnect There may bea problem A lower is over voltage switches are configured for the input voltage being applied to the machine The machine is self clearing when condition ceases with the V F signals from the main switch board to the control board Perform the Main Switch Board Test Perform the Power Board Test The control board may be faulty NOTE If more than one fault message is being displayed perform all the checks for the faults before replacing the printed circuit board V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Return to Section Retum to Master TOC Retum to Master TOC Retum to
44. Overall Length Including Handle 27 8 706mm without handle V350 PRO INPUT CURRENT Recommended Fuse Sizes Based On The U S National Electrical Code And Maximum Machine Outputs Input 50 60 Hz Output Recommended Voltage Phases 275Amps 350Amps Line Cord Size Fuse Size Notes 31Volts 100 34Volts 60 208 230 415 460 575 200 208 230 380 400 415 125A Note 1 125A Note 1 80A Note 1 70A 50A 80A Note 1 80A Note 1 70A 50A 50A 50A 460 50A 575 35A 1 When operating on these inputs the line cord should be changed to an input conductor of 6 AWG or larger WWWWWWWW HH HHH AN OUTPUT CABLES CONNECTIONS AND LIMITATIONS Select the output cable size based upon the following chart Cable sizes for Combined Length of Electrode and Work Cable Copper 75C rated DUTY CYCLE CURRENT LENGTH UP 61m 200 FT 61 76m 200 250 FT 100 275 1 0 1 0 60 350 1 0 2 0 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC A 3 INSTALLATION INSTALLATION A WARNING ELECTRIC SHOCK can kill e TURN THE INPUT POWER OFF AT THE DISCONNECT SWITCH BEFORE ATTEMPTING TO CONNECT OR DIS CONNECT INPUT POWER LINES OUTPUT CABLES OR CONTROL CABLES Only qualified personnel should p
45. Return to Master TOC L11110 1A1 7 IDENTIFICATION CODE GROUND SIDE PART NO NOTES N A DO NOT COAT WITH ENCAPSULATION MATERIAL N B CAUTION THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY SEE E2454 BEFORE HANDLING Ojo ojo Ele lt BIZ o o N C DO NOT INSERT THESE COMPONENTS N D THERE MUST NOT BE MORE THAN 010 GAP BETWEEN SPACERS OR BETWEEN SPACER amp LED OR BETWEEN SPACER amp P C BOARD ENCAPSULATE P C BOARD SPACERS amp LOWER HALF OF LED N E CONNECTOR MUST BE GREASED WITH ITEM 4 PRIOR TO ENCAPSULATION ENCAPSULATE WITH HUMISEAL 1A27LU PER E1844 OR WITH EQUIVALENT AS APPROVED BY LINCOLN ELECTRIC COMPANY 2 COATS BUY PER E3867 TEST PER E3856 MS MANUFACTURING TOLERANCE PER E2086 Sheet No INFO DESIGN INFORMATION REFERENCE EQUIPMENT TYPE MISCELLANEOUS ON 2 PLACE DECIMALS IS 02 XM5626 ON 3 PLACE DECIMALS IS 1 002 DRAWN BY M D ONAL ANGLES IS OF A DEGREE x SPI MODE SELECT P C BD ASSEMBLY WITH PUBLISHED STANDARDS BONOT SCALE THIS DRAWING APPROVED SCALEFULL 2 23 99 DRAWINGNo 11110 1 Return to Section TOC Return to Master TOC NOTE Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting PC Board repairs will invalida
46. Return to Master TOC Return to Section TOC wn 8 B Return to Master o o 2 8 gt 2 6 10 PC BOARD ASSEMBLY POWER SUPPLY ELECTRICAL DIAGRAMS HEATSINK MOUNTING DETAIL NOTES N A SEE HEAT SINK MOUNTING DETAILS N B ALL CONNECTORS MUST BE GREASED WITH ITEM 5 PRIOR TO ENCAPSULATION N C ATTACH ITEM 1 TO ITEM 2 2 PLACES WITH ITEM 3 TOURQUE 5 3 05 IN LB ITEM 1 SHOULD BE ALLIGNED SO THAT THE DISTANCE BETWEEN ITEM 1 s CONNECTORS AND ITEM 2 IS AS LARGE AS POSSIBLE N D ENCAPSULATION PER E1911 E TO A MINIMUM DEPTH SO ALLOF THE COMPONENTS LEADS ARE COVERED TIGHTEN TO 6 8 in Ibs WITHOUT APPLYING ANY PRESSURE TO PLASTIC CASE OF ITEM 51 N F PLACE A HEAVY FILM OF ITEM 74 ON HEATSINK SURFACE DO NOT GET ON THREADS N G PLACE BARCODED ASSEMBLY NUMBER IDENTIFICATION AND BARCODED SERIAL NUMBER IDENTIFICATION IN AREA SHOWN PART NUMBER 3632 0 DESCRIPTION PC BOARD BLANK G 10 REFERENCE DESIGNATOR M19436 3 POTTING TRAY 58025 80 SELF TAPPING SCREW E2527 1150 4 1 oz ENCAPSULATIOG RE
47. TROUBLESHOOTING amp REPAIR MODE BOARD REMOVAL AND REPLACEMENT continued FIGURE F 29 SCREW IN CAP Replace the mode board Replace the 1 4 nuts and their washers that mount the Hot Start and Arc Control knobs Using a small screwdriver replace the two knobs previously removed Be sure to place both potentiometers in the full counter clock wise position and position knobs for proper calibration Replace the three 5 16 screws previously removed from the front of the machine located around the mode board knobs Replace plugs 31 and 34 previously removed V350 PRO 23 24 25 26 Small Flathead Screwdriver Replace the four phillips head screws removed from the front of the machine located around the two welder output terminals Replace the six phillips head screws and their washers from around the input power switch Using a 5 16 nut driver replace the four screws previously removed from the front of the machine Replace the case wraparound cover LINCOLN 5 70 NOTES LINCOLN V350 PRO F 70 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 71 71 TROUBLESHOOTING REPAIR STATUS BOARD REMOVAL AND REPLACEMENT WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel Unauth
48. application 3 Attach the single lead from the LN 25 control box to the work using the spring clip on the end of the lead This is only a control lead it carries no welding current 4 Set the voltmeter switch to the electrode polarity chosen 5 Set CONTROL SELECT to REMOTE 6 Set MODE to the CV WIRE position 7 Set WELD TERMINALS SELECT to the ON position If you are using an LN 25 without an internal con tactor the electrode will be HOT when the V350 PRO is energized 8 Set ARC CONTROL to the position and then adjust to suit Figure C 1 V350 PRO LN 25 ACROSS THE ARC CONNECTION DIAGRAM 6 pin Amphenol Optional K444 1 Remote Control LN 25 Wire Feeder Work Clip Lead To Work Electrode Cable NOTE lllustation shows electrode connected for negative polarity V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC C 3 ACCESSORIES CONNECTION OF THE LN 25 TO THE V350 PRO ACROSS THE ARC WITH OPTIONAL 6 PIN K857 REMOTE CON TROL 1 2 Remove input power to the V350 PRO Connect the electrode cable to the output terminal of polarity required by the electrode Connect the work lead to the other terminal Welding cable must be sized for current and du
49. pressed within 30 seconds after adjusting the Output Control knob the machine will leave the calibration mode and use the previous calibra tion settings LINCOLN 5 49 49 TROUBLESHOOTING AND REPAIR VOLTAGE AND CURRENT CALIBRATION PROCEDURE continued CURRENT CALIBRATION PROCEDURE Retum to Section TOC Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC Connect the resistive load band approxi mately 087 ohms and test ammeter to the welding output terminals Press and hold in the Mode Select button Turn on the V350 PRO Rotate the Output Control knob until the display reads cur cAL Release the Mode Select button The left display will change to ICAL to indicate that current calibration is in progress The right display will scroll the following message Adj oCP SorEAL cur 300A Adjust the Output Control knob until the actual output current reading on the test ammeter is 300amps 2 Wait for the machines output to be automatically turned off and then back on V350 PRO 10 11 12 13 14 15 Adjust the Output Control knob again if necessary to make the actual output cur rent reading the test ammeter 300 amps 2A Wait for the machines output to be auto matically turned off and then back on Repeat the above two steps if necessary Press and re
50. 0 LN 7 5 TO LN 7 81 9 1 CONTROL 3 4 14 PIN 115VAC 42 o BOX 2 41 o B 8 31 o 31 EJE 32 o 32 8 5 2 0 0 4 o 4 21 o 21 K291 OR K404 SIE ces HRN INVERTEC POWER SOURCE a V 77 9 77 K775 OPTIONAL 2 REMOTE CONTROL Retum to Master TOC 5 8 9 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 C 8 C 8 ACCESSORIES CONNECTION OF THE LN 742 TO THE 3 Connect the K591 control cable to the 24 42VAC V350 PRO SEE FIGURE C 7 14 pin amphenol on the back of the V350 PRO NOTE AN LN 7 CAN ONLY BE USED WITH A FAC and the input cable plug on the LN 742 TORY OR VERSION OF THE V350 PRO 4 Set the VOLTMETER switch to or depending on the polarity chosen 1 Remove input power to the V350 PRO 5 MODE to the CV WIRE position Retum to Section TOC Retum to Master TOC 2 Connect the electrode cable from the LN 742 to the terminal of the welder Connect the work 6 Set CONTROL SELECT to LOCAL cable to the terminal of the welder 7 Place the WELD TERMINALS SELECT in the NOTE Figure C 7 shows the electrode connected REMOTE position for positive polarity To change polarity shut the welder off and reverse the electrode and work 8 Adjust wire feed speed at the LN 742 cables at the output te
51. 1 800 833 9353 WELD V350 PRO LINCOLN 5 8 8 TROUBLESHOOTING 6 REPAIR Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual PROBLEMS POSSIBLE AREAS OF RECOMMENDED SYMPTOMS MISADJ USTMENT S COURSE OF ACTION FUNCTION PROBLEMS Retum to Section TOC Retum to Master TOC The display is not functioning 1 Refer to the Operation Section 1 Check for loose or faulty plug properly of this manual for normal connections between the operation characteristics Display board and the control board See the wiring diagram 2 The display board may be faulty 3 The control board may be faulty A fault or error code is displayed 1 See the Fault Code 1 See Fault Code Explanations Retum to Section TOC Retum to Master TOC For no apparent reason the weld 1 Check the welding cables for 1 Perform the Voltage ing characteristics have change loose or faulty connection 2 Make sure the machine s mode and output are set correctly 2 Perform the Current the process being used CV CC TIG etc 3 Perform the Output Diode 3 If Mig welding make sure the shielding gas and wire speed are correct for the process 4 The control board may be faulty being used Retum to Master TOC B 8 CAUTION If for any reason you do not understand the test procedures or are unable to perform the test repairs safely con tact the L
52. 117 2 1974 PR CAUTIONS DE S RET POUR contre les chutes dans le cas ou on recoit un choc Ne jamais LES MACHINES SOUDER enrouler le c ble lectrode autour de n importe quelle partie du TRANSFORMATEU R ET 2 Dans le cas de travail au dessus du niveau du sol se prot ger corps REDRESSEUR Un coup d arc peut tre plus s v re qu un coup de soliel donc a Utiliser un bon masque avec un verre filtrant appropri ainsi 1 qu un verre blanc afin de se prot ger les yeux du rayon nement de l arc et des projections quand on soude ou quand on regarde l arc b Porter des v tements convenables afin de prot ger la peau de soudeur et des aides contre le rayonnement de l arc c Prot ger l autre personnel travaillant proximit au soudage l aide d crans appropri s et non inflammables Relier la terre le chassis du poste conformement au code de l lectricit et aux recommendations du fabricant Le dispositif de montage ou la piece souder doit tre branch une bonne mise la terre Autant que possible l installation et l entretien du poste seront effectu s par un lectricien qualifi Avant de faires des travaux l interieur de poste la debranch Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise paisse pan talons sans revers et chaussures montantes Toujo
53. 2 te 1 6 1 iw PIN DETECT ON DFF b Ber CHIP SFI AND asse PULL CURRENT ON OFF 6 PIN REMOTE CONNECTED DETECTION 6 PIN REMOTE SIGNAL CONDITIONING SOLENOID DRIVE ON OFF MISO CPLD C 105 1 14 PIN REMOTE CONNECTED DETECTION 14 REMOTE SIGNAL CONDITIONING SEE X413 PN RMT CNCTD MOSI T Din m lt p PIN DETECT ON OFF 3 6 PIN 76 LINE SIGNAL L ano L CONNECTED SEE 101 5 H UNCONNECTED st 14 PIN 76 LINE SIGNAL ANI g ANZ 0 A D OUTPUT DATA vi K 7 17 7 ANG Dout gt ot EE ANS coc PP EOM 14 PIN 76 ANG vref SEE J331 9 8 vii ANB 1450510 Return to Section Return to Master TOC 05 Visor 1 CONVERTER 5 5 5 14 PIN 76 LINE SIGNAL A D ENABLE DL MT A D CONVERSION Vaser X14 Ves PERIPHERAL DRIVER PERIPHE 5 PERIPHERAL SUPPLY ERIPHERAL SUPP
54. 525051 25 TRANSISTOR SMD NMF D2PAK 18A 200V IRF 98 525000 24315 RESISTOR SMD METAL FILM 1 10W 2 43K 1 R1 525000 22115 RESISTOR SMD METAL 1 10 2 21 1 R113 R121 525000 33225 RESISTOR SMD METAL FILM 1 10W 33 2K 1 R115 525003 22115 RESISTOR SMD 1W 2 21K 196 R132 R133 R134 Return to Section TOC Return to Master TOC Return to Section TOC Return to Master TOC CAPACITORS MFD VOLTS INDUCTANCE HENRIES RESISTANCE OHMS SHIELD SIDE NOTES N A ALL CONNECTORS MUST BE GREASED WITH ITEM 6 PRIOR TO ENCAPSULATION CAUTION THIS DEVICE Is SUBJECT TO DAMAGE BY STATIC ELECTRICITY SEE E2454 BEFORE HANDLING ATTACH ITEM 1 TO ITEM 2 WITH ITEM 3 TIGHTEN ITEM TO 60 05Nm 5 3 5 IN LBS ENCAPSULATION PER E1911 E TO A MINIMUM DEPTH SO ALL OF THE COMPONENTS LEADS ARE COVERED PLACE BARCODED ASSEMBLY NUMBER IDENTIFICATION AND BARCODED SERIAL NUMBER IDENTIFICATION IN AREA SHOWN Ojo ojo Ele lt BIZ o o DO NOT INSERT THESE COMPONENTS Ammo o THESE COMPONENTS MUST BE COMPLETEL
55. 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 D 4 o z lt 2 a 2 of 5 a E oc SE 9 lt lt lt N 2 o gt 5 gt 09 5 2 x lt 5 0 lt gt 09 0 ogococscg Omoooo FIO 201 uirgo 201 5 WINDY 201 5 1 o3 LUNDY DOL OF 201 uono2es o 201 uono2es o 201 uono2es o 201 uon2es oy Section 1 Section E 1 TABLE OF CONTENTS THEORY OF OPERATION SECTION g Theory of Operation rene ena anata Section 8 General Description err iet de s ee d deo E 2 5 Input Line Voltage Auxiliary Transformer and E 2 Switch Board and Main lt 1 2 E 3 Power board Control Board and SPI Communications E 4 Output Rectifier and Choke ui ea a AT RM Cu e E dn E 5 Thermal er Piet eo E 6 Protection CIRC 1 EE E 6 Over tide toa rrr cene edet e p e nr Edda ga E 6 Under Over Voltage Protection eene nennen E 6 5 Insulated Gate Bipolar Transistor IGBT Operation E 7 g Pulse
56. C 5 shows the electrode connected for positive polarity To change polarity shut the welder off and reverse the electrode and work cables at the output terminals NOTE Welding cable must be sized for current and duty cycle of application 3 Connect the input cable from the K480 control cable to the 115VAC 14 pin amphenol on the V350 PRO and the input cable plug on the LN 7 Set the VOLTMETER switch to or depending on the polarity chosen Set CONTROL SELECT to Set the MODE to the CV WIRE position Place the WELD TERMINALS SELECT in the position Adjust wire feed speed at the LN 7 and adjust the welding voltage with the optional remote control if used Set the ARC control at 0 initially and adjust to Suit Figure C 5 V350 PRO LN 7 with K480 Control Cable Connection Diagram 14 PIN AMPHENOL 115VAC AT REAR OF MACHINE 6 PIN AMPHENOL V350 PRO TO WORK K480 CONTROL CABLE TO LN 7 INPUT CABLE PLUG OPTIONAL K857 REMOTE CONTROL ELECTRODE CABLE TO WIRE FEED UNIT LINCOLN 5 ACCESSORIES CONNECTION OF THE K867 ADAPTER FOR USE WITH THE K291 OR K404 INPUT CABLES AND LN 7 1 Insulate each unused lead individually Retum to Section TOC Retum to Master TOC 2 Splice leads and insulate Figure C 6 Connection of LN 7 to V350 PRO using K867 adapter Y 8 SPARE o ELECTRODE CABLE 82
57. FRAME CONNECTION L EARTH GROUND CONNECTION UNIFIED SPI PANELS DISPLAY PCB SCHEMATIC 12 x3 1 HC368D SUP S D G gt SUBJECT CHK 1 4W UNLESS OTHERWISE SPECIFIED UNLESS OTHERWISE SPECIFIED 05 19 00 111108 30 MFD 022 50V UNLESS OTHERWISE SPECIFIED Ohms DATE 1A 400V LED O THERMAL LEDS CLEVELAND OHIO U S A FILENAME 01 MLO GENERAL INFORMATION ELECTRICAL SYMBOLS PER 1537 CAPACITORS THE LINCOLN ELECTRIC CO RESISTORS DIODES PG Return to Section TOC Return to Master TOC TO CONVERT TO TEST FIXTURE DISPLAY BOARD CONNECT A SPDT SWITCH AS FOLLOWS REMOVE R22 AND R23 DATA DUT CONNECT A NORMALLY OPEN PUSHBUTTON BANK1 9 AS FOLLOWS l BANK3E va 5 O O 4 ENABLE BANK THE LOCATIONS OF VIA 1 THRU VIA 5 2 DATA_IN ARE SILKSCREENED ON THE BOARD 1 CLOCK Rx POSITION B TO TEST CHIP SELECT 7 BOARDS POSITION A TO TEST ALL OTHER CHIP SELECTS MC14489DW THE LINCOLN ELECTRIC CO 3 8 col a1 b1 c1 d1 e1 f1 g1 h1
58. HSS MTP VERT MOUNT TO220 NP Q1 Q2 HEATSINKS 518380 15 RES THERMISTOR PTC POS TEMP TR R40 518380 16 RES THERMISTOR NTC NEG R55 111577 62 CAP 1uF PEMF 200V 10 NP 13 C26 520375 9 TFM L 5763 3 FLYBACK NP 520375 10 TFM L 5764 3 FLYBACK NP 112704 93 ITRA BUZ30A NMF 21A 200V T0220 24020 4 524020 6 6 524020 12 12 5 WASHER N A 525040 85 ISDIO MURS360T3 NP 019 520500 4 1500pF 2000V MET POLYPROP 12 31 525020 25 ISCAP 0 022uF 50v X7R 49 525020 135 SCAP 150pF 0805 100V COG 5 27 C45 C46 C52 525002 47 5 SRES 47 5 1210 5 1 2W TR NP R6 R7 R57 R58 25000 10ROSMT 5 5 10 0805 1 1 10 R9 R60 R61 25002 30R1SMT SRES 30 1 FXD 1210 5 1 2W TR R35 R36 525068 95 STRA 78M15C DPACK 515128 65 STRA 7815C DPACK XB 525068 105 STRA 79M15C DPACK 525002 24915 SRES 2 49K 1210 5 1 2W T R R19 R23 525002 12115 SRES 1 21K 1210 5 1 2W TR NP R46 R48 R37 25002 1500SMT SRES 150 1210 5 1 2W TR NP R25 R44 R62 R63 R64 25001 4750SMT SRES 475 1206 R8 N A SHSS MTP D2PACK TO263 8 016 HEATSINKS 525
59. If trigger control is local weld terminals on the ON display will be lit If trigger control is remote weld terminals remotely controlled the REMOTE display will be lit The unit will power up in pre determined preferred trigger modes For the Construction version all modes ON For the Factory version STICK and ON or REMOTE depending if remote output controls are connected to the machine V350 PRO LINCOLN 5 Retum to Section Retum to Master TOC Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC B 3 OPERATION For both the Construction and Factory versions these trigger modes can be over ridden switched with the WELD TERMINALS push button When changed the unit will power up in the configuration it was in when it was last powered down 5 THERMAL This status light indicates when the power source has been driven into thermal overload If the output terminals were ON the ON light will blink indi cating that the output will be turned back on once the unit cools down to an acceptable temperature level If the unit was operating in the REMOTE mode the trigger will need to be opened before or after the thermal has cleared and closed after the machine has cooled down to an acceptable temper ature to establish output 6 CONTROL REMOTE LOCAL Two status lights indicate
60. Install in accordance with all local and national electric codes PARALLEL OPERATION The V350 Pro are operable in parallel CC mode For best results the currents of each machine should be reasonably well shared As an example with two machines set up in parallel for a 400 amp procedure each machine should be set to deliver approximately 200 amps not 300 amps from one and 100 amps from the other This will minimize nuisance shutdown conditions In general more than two machines in parallel will not be effective due to the voltage requirements of procedures in that power range To set machine outputs start with output control pots and arc control pots in identical positions Use the output control pots to balance the currents and main tain the desired voltage or current The arc control pots should be kept identical on the two machines QUICK DISCONNECT PLUGS A quick disconnect system is used for the welding cable connections The welding plug included with the machine is designed to accept a welding cable size of 1 0 to 2 0 1 Remote 25mm 1 in of welding cable insulation 2 Slide rubber boot onto cable end The boot end may be trimmed to match the cable diameter Soap or other lubricant will help to slide the boot over the cable BOOT WELDING CABLE 25 mm C tin TRIM 3 Slide the copper tube into the brass plug 4 Insert cable into copper tube V350 PRO LINCOLN 5 Retum to Sec
61. OF CONTENTS ELECTRICAL DIAGRAMS SECTION ELECTRICAL DIAGRAMS seins nn ores Sad Ed eae DEAS RD ad SECTION G WIRING DIAGRAM MIT G 2 MACHINE SCHEMATIC ustami G 3 CONTROL PC BOARD SCHEMATIC 1 52 25 meon ed a G 4 CONTROL PC BOARD SCHEMATIC 2 3426 teas avecenaen s G 5 CONTROL PC BOARD SCHEMATIC 372 iare ote uina OG el p icc eit G 6 CONTROL PG BOARD SCHEMATIC 4 G 7 CONTROL PC BOARD ASSEMBLY 2 pid eeu ibaa Win uae Lad aie d he G 8 POWER SUPPLY PC BOARD SCHEMATIC enano da CREER G 9 POWER SUPPLY PC BOARD ASSEMBLY rex ehh G 10 SWITCH PC BOARD SCHEMATIC eire ai retards arii utet eec G 11 SWITCH PC BOARD ASSEMBLY 2 5 Made io d Xa G 12 DISPLAY PC BOARD SCHEMATIC ied aede gt PERRA G 13 DISPLAY PC BOARD ASSEMBLY oe des a RO Rd G 14 STATUS BOARD 5 9 15 STATUS BOARD ASSEMBLY be wlan 9 16 MODE SELECT BOARD SCHEMATIC 45224 9 17 MODE SELECT PC BOARD ASSEMBLY ac ara eR OUR EU d G 18 REMOTE PC BOARD SCHEMATIC Luua uu aro o div patata e t G 19
62. PRO LINCOLN 5 86 86 TROUBLESHOOTING 6 REPAIR OUTPUT RECTIFIER MODULES Q E REMOVAL AND REPLACEMENT continued 1 2 PROCEDURE 818 1 Remove input power to V350 PRO 5 Before the output rectifier modules can be reached Snubber Board 2 Using a 5 16 nut driver remove the case wrap Procedure must be performed around cover 6 After the snubber board is removed remove the 3 Perform the Input Filter Capacitor Discharge four leads connected to the modules using a 3 16 Procedure detailed earlier in this section allen wrench These leads are 4X4 4X2 20 40 Note their positions for reassembly See Figure 4 Locate the output rectifier modules located behind F 38 the snubber board See figure F 38 7 Remove the copper plates from the tops of the modules FIGURE F 38 OUTPUT RECTIFIER MODULE LEAD LOCATIONS Retum to Section TOC Retum to Master TOC Lead 420 Lead 4X2 Lead 4 Lead 40 Snubber Board e al Retum to Master TOC 8 9 LEFT SIDE Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 87 F 87 TROUBLESHOOTING amp REPAIR OUTPUT RECTIFIER MODULES REMOVAL AND REPLACEMENT continue
63. REMOTE BOARD ASSEMBLY oce sciet whee a a aA UG e Cb FERAE Rr ER G 20 SNUBBER BOARD SCHEMATIC uccide eb ied G 21 SNUBBER BOARD ASSEMBLY ii buco cuna o a ties elo cede E AUR Y G 22 V350 PRO LINCOLN 5 0 2 ELECTRICAL DIAGRAMS 6 2 vlo WIRING DIAGRAM V350 PRO o FF 5 WIRING DIAGRAM INVERTEC V350 PRO 9 RIGHT SIDE OF MACHINE 918 c c 1001 1002 5 1010 1020 Ble o o 607 615 716 i 1002 1020 59 1001 1010 5 5 J10B Jt CB1 100 A CIRCUIT BREAKER CURRENT o e TRANSDUCER PRIMARY E RECONNECT 8 207 LL B B z o o o E AUXILIARY 5 XFMR amp 380 575VAC POSITION D INPU E SINC BRIDGE n H4 380 o c E OUTPUT REGTIEER FLEX CIRCUIT FLEX CIRCUIT olo CERA 8 3 SOLENOID RECTIFIER e go 9 TAR MEC ps c Oslo ho Ps Eis 0 EU K B cB 4B 431 4 2 4 5 54 MN lt 3 lt lt WIRE FEEDER Wi WEE WIRE REEDER COLOR CODE REMOTE REMOTE B BLACK REAR VIEW REAR VIEW G GREEN R RED W WHITE U BLUE 21 21B 2A 4A N BROWN NOTES TSATGA TTA LEFT SIDE OF MACHINE
64. Relay Control 9 gt Auxiliary 8 Soft Start Control 115VAC 42VAC Transformer 5 V F Capacitor Feedback 2 24 Machine Control Supply Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC 15VDC 15VDC 6VDC Power 28VAC 40VDC m E Amphenol Board SPI Supply 15VDC 5VDC J RS232 Supply 5VDC Jo gt Control Board SPI Communications 15VDC 5VDC Supply Solenoid Supply 40VDC Remote Board Display Panel Panel Panel Mode Status Remote Control amp Trigger 6 Pin Amphenol POWER BOARD CONTROL BOARD AND SERIAL PERIPHERAL INTER FACE SPI COMMUNICATIONS POWER BOARD The 28VAC auxiliary is rectified and filtered and applied to the power board The power board utilizing a switching power supply processes the 40VDC input and develops several regulated positive and negative DC supplies Three DC supplies are fed to the control board for machine control supplies Two positive DC voltages are coupled to the control board for the Serial Peripheral Communications SPI supplies A 5VDC is used for the RS232 connection supply and a 40VDC is fed to the remote board to power an optional gas solenoid An over or under input voltage detection and shutdown circuit is also part of the power board s circuitry CONTROL BOARD
65. WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY d TROUBLESHOOTING amp REPAIR OUTPUT RECTIFIER MODULES REMOVAL AND REPLACEMENT WARNING Retum to Section Retum to Master TOC 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the output rectifier modules for maintenance or replacement MATERIALS NEEDED Retum to Section TOC Retum to Master TOC 3 16 Allen wrench 9 64 Allen wrench 5 16 Nut Driver 7 16 Wrench Flathead Screwdriver Penetrox A 13 Heatsink Compound Thin Knife S crewdriver This procedure takes approximately 30 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350
66. Width Modulation cece sess cece e ete nnne 8 Minimum M aximum nnne nn nna enn nn E 8 2 FIGURE E 1 V350 PRO BLOCK LOGIC DIAGRAM Main Switch Board LX Output Input switch Input E rimary Terminal amp 100A Breaker Rectifier ___ euren Sensor Negative Output Terminal Reconnect Switch Primary Current H 555 ED 2 Y 4 2 8 5 3 Output Voltage Sense 115VAC Fan Supply Input Relay Control E Auxiliary 8 Soft Start Control 115VAC 42VAC Transformer 5 8 Machine Control Supply 15VDC 15VDC 6VDC Control Board SPI Communications amp 15VDC 5VDC Supply Solenoid Supply Y Y Y Y 40VDC 4 Mode Status Display Board Panel Panel Panel 6 Pin Remote Control amp Trigger Amphenol V350 PRO LINCOLN 5 Optional Solenoid Retum to Master TOC Retum to Section 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC 15VDC 15VDC 6V Power Board 28VAC
67. after arc initiation The Arc Control regulates the Arc Force to adjust the short circuit current The minimum setting 10 will produce a soft arc and will produce minimal spatter The maximum setting 10 will produce a crisp arc and will minimize electrode sticking CC STICK CRISP The Stick Crisp mode features continuous control from 5 to 425 amps This mode was intended primarily for pipe welding applications The Hot Start control regulates the starting current at arc initiation Hot Start can adjust starting cur rent up or down by 25 of the preset value The recommended setting for Hot Start is 5 where the initial current is equal to the preset current Figure B 1 CASEFRONT V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC ui OPERATION idi The Arc Control regulates the relative Slope of the process Slope dynamically controls the force the arc has to penetrate an open root At the minimum setting Arc Control is very soft and is similar to the Stick Soft mode At the maximum setting the slope is reduced the OCV is reduced and the operator has full control off the arc force required to pene trate an open roo
68. c22 150pFz 100V 1 4W UNLESS OTHERWISE SPECIFIED UNLESS OTHERWISE SPECIFIED 06 22 00 MFD 022 50V UNLESS OTHERWISE SPECIFIED Ohms DATE 1A 400V RECONNECT 206 THE LINCOLN ELECTRIC CO CLEVELAND OHIO U S A GENERAL INFORMATION ELECTRICAL SYMBOLS PER E1537 FILENAME L11487 1C CAPACITORS RESISTORS DIODES Return to Section TOC Return to Master TOC 5626 3 3K Aa L FILTER 205 022 xa TL 2 33074A 33074A 11 11 33K 5 33K N V com 8 A Xe ER CAPACITOR E 28 THE LINCOLN ELECTRIC CO PRIMARIES TRANSFORMER THE LINCOLN ELECTRIC CQ 6 2 2000A 221 es V F CONVERTER 2 gt 291 5VDC CAP 5 89VDC AT VREF B 1 000KHZ 2215 5 08 1VDC CHANGE ON 8HZ Bik RECONNECT 400V 203 PWM DRIVE RAD R131
69. circuit accidental peut provoquer un chauffement et un risque d incendie S assurer que la masse est connect e le plus pr s possible de la zone de travail qu il est pratique de le faire Si on place la masse sur la charpente de la construction ou d autres endroits loign s de la zone de travail on augmente le risque de voir passer le courant de soudage par les chaines de levage c bles de grue ou autres circuits Cela peut provoquer des risques d incendie ou d echauffement des chaines et des c bles jusqu ce qu ils se rompent Assurer une ventilation suffisante dans la zone de soudage Ceci est particuli rement important pour le soudage de t les galvanis es plomb es ou cadmi es ou tout autre m tal qui produit des fume s toxiques Ne pas souder en pr sence de vapeurs de chlore provenant d op rations de d graissage nettoyage ou pistolage La chaleur ou les rayons de l arc peuvent r agir avec les vapeurs du solvant pour produire du phosg ne gas fortement toxique ou autres produits irritants parce que la tension entre les deux pinces peut tre le total 11 Pour obtenir de plus amples renseignements sur la s ret voir de la tension vide des deux machines Si on utilise la machine souder comme une source de courant pour soudage semi automatique ces precautions pour le porte lectrode s applicuent aussi au pistolet de soudage le code Code for safety in welding and cutting CSA Standard W
70. gt J21 2 gt 608 INPUT SWITCH A 801 J8 1 CURRENT FEEDBACK 4 500 802 J8 24 15V 804 J84 15V TEN 806 18 6 lt CONTROL BOARD COMMON E 203 901 J9 1 STUD VOLTAGE SENSE INPUT RED 2 e 52 903 J9 3 STUD VOLTAGE SENSE LINES 09 204 3 13 G GREEN Olo 94J21 13 605 2 GND i CONVERTER 2 a o gt J21 3 gt 610 THERMOSTAT D ashed lines represent J21 4 506 503 J1 46 J7 P52 D Copper bus connections 321 8 aes d 506 ay 25555555 Shown connected for 9 sespe 16 200 240 Volt Input Voltage x 1020 1010 505 503 J5 3 THERMOSTAT c s l luz 502 15 2 lt THERMOSTAT 231 33 psi LLL II E E 5 1 334 337 m go ELS 5 55 AUXILIARY 08 z 602 92 505 52556 yo azo LZ Erg 605 165 lt VOLTAGE FREQUENCY CONVERTER 2 Enc TRANSFORMER 299 2 5992 610 16 10 lt VOLTAGE FREQUENCY CONVERTER 2 6 10 SSSS amp S amp SS 502 1010 108 1 lt CURRENT Y C 1020 J10B 2 PRIMARY CURRENT SENSE 2 2 5 11 5 FAN 607 615 611 611 6 11 GND a 402 M1 415 VAC 612 612 J6 12 SOFT START CONTROL 77 715 615 16 15 PULSE TRANSFORMER GATE DRIVE T 3 607 46 7 PULSE TRANSFORMER GATE DRIVE 98 88
71. is devoted to conduction in the posi tive and negative portions of the cycle Changing the pulse width is known as modulation Pulse Width Modulation PWM is the varying of the pulse width over the allowed range of a cycle to affect the output of the machine MINIMUM OUTPUT By controlling the duration of the gate signal the IGBT is turned on and off for different durations during the Cycle The top drawing in Figure E 9 shows the mini mum output signal possible over a 50 microsecond time period The positive portion of the signal represents one IGBT group conducting for one microsecond The negative portion is the other IGBT group The dwell time off time is 48 microseconds both IGBT groups off Since only two microseconds of the 50 microsecond time period is devoted to conducting the output power is minimized MAXIMUM OUTPUT By holding the gate signal on for 24 microseconds each and allowing only two microseconds of dwell time off time during the 50 microsecond cycle the output is maximized The darkened area under the top curve can be compared to the area under the bottom curve The more dark area that is under the curve indi cates that more power is present lan IGBT modules winding IGBT primary group consists of two feeding transformer V350 PRO LINCOLN 5 Section F 1 Section F 1 TABLE OF CONTENTS 9 TROUBLESHOOTING amp REPAIR SECTION Troubleshooting amp Repair
72. performed on this equipment may result in danger to the technician or 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 Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the snubber board for mainte nance or replacement MATERIALS NEEDED Retum to Section TOC Retum to Master TOC 5 16 Nut Driver 7 16 Socket or Nut Driver Retum to Master TOC 8 This procedure takes approximately 15 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 76 F 76 TROUBLESHOOTING amp REPAIR SNUBBER BOARD REMOVAL AND REPLACEMENT continued PROCEDURE 1 Remove input power to the V350 PRO 3 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 2 Using a 5 16 nut driver remove the case wrap around
73. safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This test will help determine if there is a possible open in the SPI cable and also determine if the correct supply voltages are being applied to the boards in the SPI network Retum to Section TOC Retum to Master TOC MATERIALS NEEDED Volt Ohmmeter 5 16 Nut Driver This procedure takes approximately 35 minutes to perform Retum to Master TOC B 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Master TOC Retum to Section TOC Retum to Master TOC 5 8 9 Retum to Section Y 4 2 5 4 Retum to Master F 46 F 46 TROUBLESHOOTING AND REPAIR SPI CABLE RESISTANCE AND VOLTAGE TEST continued TEST PROCEDURE Remove the input power to the V350 PRO Using the 5 16 nut driver remove the case wraparound cover Perform the Capacitor Discharge Procedure Using a 5 16 nut driver remove the control box top Cut any necessary cable ties Perform the Do not remove the SPI ribbon cable connecting the
74. the CV WIRE mode The Arc Control regulates pinch effect At the mini mum setting 10 minimizes pinch and results in a soft arc Low pinch settings are preferable for welding with gas mixes containing mostly inert gases At the maximum setting 10 maximizes pinch effect and results in a crisp arc High pinch settings are preferable for welding FCAW and GMAW with 2 CV FLUX CORED The CV FLUX CORED mode features continuous control from 10 to 45 volts This mode was designed for self shielded flux cored wires that require tight voltage control The Hot Start control is not used in the CV FLUX CORED mode The Arc Control regulates pinch effect At the mini mum setting 10 minimizes pinch and results in a soft arc At the maximum setting 10 maximizes pinch effect and results in a crisp arc Most self shielded wires work well at an Arc Control setting of 5 8 HOT START and ARC CONTROL features have different functions depending on the welding Mode that is active Each feature is described under the welding mode heading 7 for specified Mode Operation LOWER CASE FRONT The output studs line switch and remote connector are located on the lower case front 9 Both STUDS contain Twist Mate connector inserts The Negative stud is configured to accept the pass through gas system 10 The ON OFF switch is a 3 phase circuit breaker rated at 100 amps per leg 11 The METER POLARITY switc
75. to Master TOC B 5 OPERATION 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 If a remote is not connected to the 6 pin amphenol then the remote will default to the 14 pin amphenols if a remote is connected to one of the 14 pin amphe nols If a remote control is connected to any of the amphenols the WELD TERMINAL control will default to REMOTE If there not any remote control devices attached the WELD TERMINAL control will default to ON CC Stick modes The remote will default to only the 6 pin amphenol if a remote is connected to it The WELD TERMINAL control will default to ON with or without a remote connected Types of Remote OUTPUT CONTROL The Invertec V350 Pro s Output Control can be controlled by either a potentiometer connected between 77 amp 75 with the wiper connected to 76 or a to 10V DC supply connected between 76 8 75 76 needs to be positive 14 Pin Amphenol lead 75 is pin G lead 76 is pin F and lead 77 is pin E 6 Pin Amphenol lead 75 is pin C lead 76 is pin B and lead 77 is pin A Potentiometer Control The total resistance should be between 2000 ohms 2K and 10 000 ohms 10K The machine output will be at minimum when lead 76 wiper is at the end of the potentiometer that is connected to 75 The machine s output will increase as the wiper of the potentiometer is mov
76. to your code is pasted inside one of the enclosure panels of your machine LINCOLN V350 PRO ELECTRICAL DIAGRAMS ae SCHEMATIC COMPLETE MACHINE ojo FF 918 SWITCH BOARD 2 204 gt INPUT 818 x9 NU mrt CONTROL BOARD 609 J6 9 15V B B RECONNECT SWITCH CRI 602 J6 2 lt MAIN RELAY CONTROL o o 616 16 16 lt VOLTAGE FREQUENCY CONVERTER 1 SNUBBER 608 J6 8 VOLTAGE FREQUENCY CONVERTER 1 oc BOARD 1001 J10A 1 PRIMARY CURRENT SENSE 1 400 AMP X 9 0 1002 10 2 lt PRIMARY CURRENT SENSE 1 BREAKER CONVERTER 2 E j
77. transducer at plug J8 See Figure F 11 A Pin 2 lead 8024 to pin 6 lead 806 should read 15 VDC B Pin 4 lead 8044 to pin 6 lead 806 should read 15 VDC If either of the supply voltages are low or miss ing the control board may be faulty FIGURE F 11 Plug J 8 Viewed From Lead Side of Plug 801 804 O 9 9 O k Plug J8 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 39 9 10 39 TROUBLESHOOTING AND REPAIR CURRENT TRANSDUCER TEST continued TABLE F 5 EXPECTED TRANSDUCER FEEDBACK OUTPUT LOAD CURRENT VOLTAGE Check the feedback voltage from the current transducer using a resistive load bank and with the V350 PRO in mode 200 Mode 200 is a constant current test mode This mode can be accessed from the front panel of the V350 by pressing and holding the Mode Select but ton while turning the machine on Then rotate the output knob while still holding the Mode Select button in until the displays read Mode 200 Release the Mode Select Button and the machine will be in mode 200 With the V350 PRO in mode 200 apply the grid load across the output of the V350 PRO set machine output to 300 amps and enable WELD TERMINALS Adjust the grid load to obtain 300 amps on the external ammeter and check feedback voltages per Table F 5
78. unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call or 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the display board for maintenance or replacement Retum to Section TOC Retum to Master TOC MATERIALS NEEDED 5 16 Nut Driver Flathead Screwdriver Phillips Head Screwdriver This procedure takes approximately 30 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 58 F 58 TROUBLESHOOTING amp REPAIR DISPLAY BOARD REMOVAL amp REPLACEMENT continued FIGURE F 21 DISPLAY BOARD LOCATION Display Board Status Board PROCEDURE 3 Perform the Input Filter Capacitor 1 Remove input power to the V350 PRO Discharge Procedure detailed earlier in this section 2 Using a 5 16 nut driver remove the case wraparound cover 4 Locate the display board behind the front panel of the machine See Figure F 21 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section
79. 0 Remove plug 37 from the display board 15 Replace the four phillips head screws removed from the front of the machine located around the 11 Remove plug 3 originating from the control two welder output terminals board located directly across from the display board 16 Replace the six phillips head screws and their washers from around the input power switch 12 Remove the display board Note Gentle prying from behind the board may be required 17 Using a 5 16 nut driver replace the four screws previously removed from the front of the machine Repace the display board 18 Replace the case wraparound cover 14 Replace plugs 3 and 37 previously removed V350 PRO LINCOLN 5 61 61 TROUBLESHOOTING REPAIR MAIN SWITCH BOARD REMOVAL AND REPLACEMENT A WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD D
80. 001 47535 5 5 475 1206 1 1 8 R21 525001 15 05 5 5 15 1206 1 1 8 R43 R32 E1868 THERMALCOTE 251 Q1 Q2 HEATSINK 525001 75025 5 5 75 1206 1 R31 525068 15 RR E P nl af PS PR ro ERR ER P ER P l ER P ER ER UR ER cof SS ER E ER ER af PE SICS 78M05 DPAK V REG Xo X7 MANUFACTURING TOLERANCE PER E21 BUY AS rm G3632 2D0 IDENTIFICATION CODE PART NO CAPACITORS MFD VOLTS INDUCTANCE HENRIES RESISTANCE OHMS BUY PER E3867 TEST PER E3856 P THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A DESIGN INFORMATION EQUIPMENT TYPE INVERTER WELDERS T SUBJECT DIGITAL POWER PC ASBLY see ree paene ww ____ 50 DATEI2 09 99 DRAWINGNo G 3632 2 DO Return to Section Return to Master TOC 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 not available from Lincoln Electric This information is pro vided for reference only Lincoln Electric discou
81. 132 DAIN MMBT4401 57 4401 NOISE R15 GND2 A SEDTAGAN ADDRI3 4 30 DATAB PWRDN INT EVIE 32 DATA LA 4 Q5 475 INPUT 1C4451 1 R40 475 C22 tL 2 YY 5 MS mes Da 100pF 3 16890151 NOISE 4401 BAV70LT1 m ATS 59177 7 CONTRE jq et NAP zeg 4 75K D 699 181 IRES ADDR 1 19 N 4401 44 lt EDE Vo ADDR17 28 ADDRIS 17 YADDRi9 16 ALPRE 16 43 DATAT4 CSB 26 15 DATATS TTA m 27 39 DATA12 41 _ ___ 077 e ES c lt AN 10 0K 199 10 0 R200 ANNA 10 0K R180 10 0K R181 AAA VV 0 0 9814 10 0 5V TE28F800B5 B90 Vb R254 5 PLOWbL X24 CRYSTAL 85 ExTAL xrc 8 7 CLKOUT ir 1 4 IRES 92 CSBOOT P747 CS0 Cd HALT 50 P142 ICS1 CST p443 1682 R36 5 ISC 80 BGACK 52 BERR 94 77 NOISE GND 3 FREEZE 819 BERR DSO T8 1 NCH UT 51BM
82. 15VAC at plug J 22 pin 2 machine to J22 pin 3 leads 115B to COM 2 See Figure F 13 WARNING HIGH VOLTAGE IS PRESENT AT THE MAIN SWITCH BOARD FIGURE F 13 PLUG J 22 Fan Lead Lead 115 B Retum to Master TOC 8 2 Fan Lead Plug J22 V350 PRO LINCOLN 5 Retum to Section TOC Retum to Master TOC Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 43 7 F 43 TROUBLESHOOTING AND REPAIR FAN CONTROL AND MOTOR TEST continued If the 115VAC is low or not present perform Also check plug J 22 and associated leads for loose or faulty connections See the Wiring Diagram Energize the weld output terminals Select Weld Terminals ON and carefully check for 115VAC at plug J 22 pin 1 to J 22 pin 4 fan leads If the 115VAC is pre sent and the fan is not running then the fan motor may be faulty Also check the associat ed leads between plug J 22 and the fan motor for loose or faulty connections See the Wiring Diagram WARNING HIGH VOLTAGE IS PRESENT AT THE SWITCH BOARD If the 115VAC is NOT present in the previous step then proceed to the fan control test FAN CONTROL TEST PROCEDURE 1 Locate plug 20 switch board Do not remove the plug from the switch board See Figure F 12 and Figure F 14 2 4 En
83. 287 standards 4 b Use suitable clothing made from durable flame resistant material to protect your skin and that of your helpers from the arc rays Protect other nearby personnel with suitable non flammable screening and or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal 3 5 5 5 be dangerous 5 a Welding may produce fumes and gases hazardous to health Avoid breathing these fumes and gases When welding keep your head out of the fume Use enough ventilation and or exhaust at the arc to keep fumes and gases away from the breathing zone When welding with electrodes which require special ventilation such as stainless or hard facing see instructions on container or MSDS or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes keep exposure as low as possible and below Threshold Limit Values TLV using local exhaust or mechanical ventilation In confined spaces or in some circumstances outdoors a respirator may be required Additional precautions are also required when welding on galvanized steel Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing cleaning or spraying operations The heat and rays of the arc can react with solvent vapors to form phosgene a highly toxic gas and other irritating products Shielding gases used for arc welding can displace air and
84. 3 FAULT CODES DESCRIPTION CORRECTIVE SERVICE FACILITY RRECTIVE DEFINITION ACTION TION 47 Electrical glitch on the Possibly caused by an There may be a problem V F signals from the main switch board to the control board external electrical noise or signal level Make sure the V350 Pro is grounded correctly The machine is self clearing when condition 5 5 with the V F signals from the main switch board to the control board Perform Switch Board Test Perform the Power The control board may be faulty bad node HEB The selected weld mode does not exist in the weld table that is presently loaded in the machine Press the Mode Select button to select a different welding mode Perform the Board Test Perform the SPI Cable Resistance and Voltage Test The control board may be faulty NOTE If more than one fault message is being displayed perform all the checks for the faults before replacing the printed circuit board V350 PRO LINCOLN 5 14 NOTES LINCOLN V350 PRO F 14 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 15 15 TROUBLESHOOTING REPAIR INPUT FILTER CAPACITOR DISCHARGE PROCEDURE A WARNING Service and repair should be performed by only Lincoln Electric factory trained
85. 3 R105 9 519400 1001 RESISTOR MF 1 4W 1 00K 196 R109 R128 R129 R55 R56 R57 R58 4 524376 53 _ RESISTOR WW 10W 100 5 R61 R77 2 519400 8251 RESISTOR MF 1 4W 8 25K 1 R65 R120 2 S19400 2001_ RESISTOR MF 1 4W 2 00K 1 R78 R79 2 516296 5 1 2 10 10 LINEAR T1 1 513000 46 TRANSFORMER PCE T2 T3 2 19612 CURRENT TRANSDUCER 125 TURN 1__ 713640 24 175 5 1201 20 TRII 1 515161 27 TRIAC T220 8A 800V 2 515128 10 REF ADJ PRECISION 4311 X2 X3 2 815128 18 33074 CAPACITORS MFD VOLTS INDUCTANCE HENRIES RESISTOR OHMS ITEM PART NO DESCRIPTION ary BOARD BLANK 1 ELECTRONIC MODULE A2 2 TERMINAL 8211 8218 8204 8205 8209 5 CURRENT TRANSDUCER 2 T3 2 POWER TERMINAL 8201 8208 2 EYELET FEMALE 8 EYELET MALE 8 SEALANT 5 002 1911 ENCAPSULATE WITH E1844 3 COATS TEST PER E3817 SW THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A DESIGN INFORMATION EQUIPMENT TYPE INVERTER WELDERS 2 PLACE DECIMALS IS 102 6 2 2000A ON 3 PLACE DECIMALS IS ON ALL ANGLES IS 5 OF A DEGREE MATERIAL TOLERANCE t TO AGREE WITH PUBLISHED STANDARDS XM5626 XA DRAWNBY
86. 35 Carefully remove the three plugs from the power board Remove the four screws and associated washers atthe corners of the board using a flathead screw driver Board is ready for removal Note the posi tion of washers upon removal Remove the power board 9 10 11 12 Replace with new power board Secure the new power board into its proper posi tion with the four screws and washers previously removed Replace the three plugs previously removed Plugs J 41 J 42 and J 43 Replace the case wraparound cover FIGURE F 35 POWER BOARD LEAD LOCATION C V350 PRO of 44 442 441 443 2 27 LINCOLN 80 NOTES LINCOLN V350 PRO F 80 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 81 TROUBLESHOOTING amp REPAIR RECTIFIER REMOVAL AND REPLACEMENT WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughou
87. 40206 514390 173 CAP iuF RA 63V 1096 NP C136 C135 5240202 525020 25 5 0 022 0805 50 7 10 C86 C7 51824810 525020 105 SCAP 4700pF 0805 50V X7R 10 69 518248 16 525020 55 SCAP 22pF 0805 50V COG 5 TR N C118 C116 C128 C130 2402016 525020 186 0805 100 5 C32 52402012 525020 136 SCAP 150pF 0805 100V COG 5 TR C64 C89 C26 C35 C36 C38 037 5240208 i _____ 525020 45 SCAP 820pF 0805 50V COG 5 TR _ C43 C74 C71 C19 C70 C5 C72 C6 C17 520353 45 07 ciz LN 524833 1 0 27 507 5mm 5 TR NP C56 C34 525065 25 525020 145 330 100 126 143 525070 75 525025 55 5 4 74 7343 36 10 TRNP C12 C102 C1 C9 C10 C39 C40 C16 C61 515000 285 525024 25 SCAP 1uF TAN 3528 35V TR NP C94 C97 C104 C107 C47 C81 C2 46 520353 5 525024 85 SCAP 10uF TAN 6032 TR NP C66 C62 C65 C63 825082 15 525024 105 SCAP 22uF TAN 7343 25V 10 119 C110 C49 C54 S2035 513490 179 CAP 1000uF ALU 35V 20 NP C45 525067 513490 182 5 120 25 20 C13 EE 25040 2SMT SDIO 1A 400V 00 214BA GLS pula i 15126 18SMT D25 045 D44 D17 09 06 D2 05107 08 D35 525069 35 25046 18MT SDIO MMSZ5231BT1 5 1V NP Dae ae PS D42 bel DAD Dod Do S25060 4S MT 525044 95MT SDIO 1SMB5O20BT3 6 2V NP 062 061 D60 013 D12 D1 D46 EE 525046 35 SDIO MMSZ524
88. 47pF 50V 5 COG 13 14 15 16 17 18 525024 75 CAPACITOR SMD TANTALUM 47MF 20V 106 8 c1 518248 10 10 137 520496 15 IC SMD CMOS DRIVER DISPLAY LED CC MCU X5 X6 X7 517900 285 5 5 INVERTING BUFFER 3 ST 517900 85 IC SMD CMOS INVERTER SCHMITT HEX HC14 Xt 113657 6 LED T 1 RED HLMP K101 LED1 LED2 LED3 LED4 DISP1 DISP2 DISP3 DISP4 DISP5 DISP6 DISP7 DISP8 113657 12 LED T 1 3 4 YELLOW HI NTENSITY LED5 LED6 LED7 517900 265 IC CMOS SMD MUX DAT 8 INPUT HC151 SS x2 525000 10015 RESISTOR SMD METAL FILM 1 10W 1 00K 1 IR21 R26 525000 15015 RESISTOR SMD METAL FILM 1 10W 1 50K 1 R6 R16 525000 47515 RESISTOR SMD METAL FILM 1 10W 4 75K 1 R24 525000 10805 RESISTOR SMD METAL FILM 1 10W 10 00HM R22 R23 R25 525000 12125 RESISTOR SMD METAL FILM 1 10W 12 1K 1 R9 R10 R11 R12 R13 R14 525000 47525 RESISTOR SMD METAL FILM 1 10W 47 5K 1 R27 525000 26705 RESISTOR SMD METAL FILM 1 10W 2670HMS R20 517900 105 _ IC SMDCMOS REGISTER SHFT S PI SO 8 BI x4 517395 6 LED DISPLAY 7 SEGMENT CC BRIGHT UNLESS OTHERWISE SPECIFIED CAPACITORS 15 INDUCTANCE HENRIES RESISTANCE OHMS NOTES N A DO NOT COAT WITH ENCAPSULATION MATERIAL CAUTION THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY SEE
89. 5 0610 A23 m CAN CS ADDES A1 VCC2 mn axe 2 7 Meme 1 R183 TPUGH EC FPGA CS 3 IRES 5 FUNCEN 4 150 PC2CS5 FC2 ADDRES Vb 10 139 DATAN ADDRES CAPO eae 137 DATA ADDRIO 19 TOUCHIS 136 DATAS ADDR11 E pum V j TPUCHIA 133 DATA4 ADDRI2 22 1K 2 DAUS POOR TS MICRO_CONTROLLER CAPAUV CAPA_UV IRLR120N 6 ADDR19__ A PC3CS6 19 6814 00L e lt Ojo ojo Ele lt BIE NOISE GND TPUCH15 18 3 CAPBOV R203 CAPB OV 65 PasoMISO 130 ADDRIS 2 PQS1MOSI T DATAS ADDRIG 2 T PQSISCK 125 DATAS ADDR 7 22 9 4 36 5 50 55 32 CAPBUV UV 4 gt 34 M PQS4PCS1 D ADDR 1 19 35 33 TDO PQSSPCS2 ICS2 36 JATA13 PQSGPCS3 HA7 37 __ 14 THERMOSTAT 40 g PQS7TXD 117 DATATA RW WE DATA15 a 116 DATAIS 7652 WE pis LB GND1 OV UB GND2 UV V sso 4 FETA MN FAULT INT 12 34
90. 515000 22 OPTOCOUPLER PHOTO Q 70V CNY17 3 VDI 1 515000 29 OPTOCOUPLER TRIAC DRV RANDOM 600V 1 12704 75 _ TRANSISTOR NMF 1247 4A 900V SS 02 03 04 05 4 T12704273 MOSFETA PIN DIP 1A 100V RFD110 SS 96 1 12704 69 TRANSISTOR PNP TO226 0 5A 40 2 4403 R1 R2 R3 R4 R7 R8 R9 R10 16 14648 5 _ RESISTOR WW 5W 3 3K 5 SQ R124 R125 R126 R127 R130 R131 R132 R133 R11 R12 R30 R31 4 519400 1503 RESISTOR MF 1 4W 150K 195 R13 R39 R43 R60 RB1 R92 6 1519400 3321 RESISTOR MF 1 4W 3 32K 1 R137 1 519400 3570_ RESISTOR MF 1 4W 357 1 R138 1 519400 1500_ RESISTOR MF 1 4W 150 1 R139 1 519400 4750_ RESISTOR MF 1 4W 475 1 R14 R107 2 S19400 1652_ RESISTOR MF 1 4W 16 5K 1 R140 1 19400 39R2 RESISTOR MF 1 4W 39 2 1 R15 R20 R21 R22 R27 R28 12 19400 10R0 RESISTOR MF 1 4W 10 0 1 R97 R98 R99 R100 R101 R106 R29 R83 R122 R141 4 519400 1000 RESISTOR MF 1 4W 100 195 R32 R33 R34 R48 R49 R50 16 519400 1003 RESISTOR MF 1 4W 100K 1 R51 R62 R63 R74 R75 R85 R86 R87 R134 R135 R35 R52 R73 R84 4 519400 6191 RESISTOR MF 1 4W 6 19K 1 R36 R37 R123 3 519400 2213 RESISTOR MF 1 4W 221K 1 R38 R40 R42 R45 R53 R59 14 519400 1002 RESISTOR MF 1 4W 10 0K 196 R66 R69 R70 R72 R80 R82 R142 R143 RA1 R67 2 519400 4752 RESISTORMF 1 4W 47 5K 196 R44 R68 2 112300 799 RESISTOR WW 1W 1 0 1 R46 R76 2 519400 3322 RESISTOR MF 1 4W 33 2K 1 R47 R64 2 S19400 2000_ RESISTOR MF 1 4W 200 1 R5 R6 R19 R26 R9
91. 6 27 525000 26705 RESISTOR SMD METAL FILM 1 10W 2670HMS 518380 14 THERMISTOR PTC 5000HMS 28mA R42 R43 RAA4 R64 R65 525001 33205 RESISTOR SMD 3320HMS 1 4W 1206 196 TR R46 R47 525001 22105 RESISTOR SMD 2210HMS 1 4W 1206 1 TR R48 R49 525001 10005 RESISTOR SMD 1000HMS 1 4W 1206 1 TR R51 R52 525000 33215 RESISTOR SMD METAL FILM 1 10W 3 32K 1 R55 R56 R57 R126 R127 c29 525000 68115 RESISTOR SMD METAL FILM 1 10W 6 81K 1 R62 R63 R128 R129 SATEN CAPACITOR SMD CERAMIC 2700pF 50V5 X _ 30 032 130131 513490 184 CAPACITOR ALEL 330 100V 20 C34 525000 68135 RESISTOR SMD METAL FILM 1 10W 681K 1 R66 R67 25020 7SMT CAPACITOR SMD CERAMIC 0 22MF 50V 20 C35 C36 525000 90925 RESISTOR SMD METAL FILM 1 10W 90 9K 1 R68 R69 S25024 25MT CAPACITOR SMD TANTALUM 1 35V 1096 C37 525000 28015 RESISTOR SMD METAL FILM 1 10W 2 80K 1 R70 R71 525024 55 CAPACITOR SMD TANTALUM A 7MF 35V 10 C40 525000 12125 RESISTOR SMD METAL 1 10 12 1 1 R8 R9 R1OR11 R12 R13 25024 9SMT CAPACITOR SMD TANTALUM 100MF 20V 20 C41 525000 20025 RESISTOR SMD METAL FILM 1 10W 20 0K 1 R82 R85 525024 75 CAPACITOR SMD TANTALUM 47MF 20V 10 S C42 C46 25001 6810SMT RESISTOR SMD 6810HMS 1 4W 1206 1 TR R86 525020 65 CAPACITOR SMD CERAMIC 4700pF 50V 5 C63 525004 24305 RESISTOR SMD 1W 2430HMS 1 R91 R92 R93 R99 R107 25020 2SMT CAPACITOR SMD CER
92. 8B 18V ZENER TRNP D53 052 058 059 SD GSMT S25044 105MT SDIO B5930 16V 1 5W ZENER TRN D18 015 043 525057 35 526044 55 SDIO 1SMB5931B73 3W 18V 5 D27 D32 D25 030 031 D29 D24 D14 016 M15105 9SMT 525044 4SMT 5DI0 B5929 15V 1 5W ZENER TRN D10011 515018 215 066 D50 033 049 019 078 079 D102 D103 Ie 525040 55 SDIO BAV99LT1 SOT23 DUAL SWITC LG 525070 35 0104 0105 0106 0107 S25068 29MT 525049 45 SDIO BATEAS DUAL 30V 200mA D34 D54 D28 047 D80 D81 082 083 EE LED8 LED1 LEDS LED3 LED2 LED4 LEDS 525066 25 525068 75 _ 525070 45 525080 15 SLED RED 1206 TRNP LED7 LED1O 20620 1008 525082 15 SIND FERRITEBEAD TRNP 1 525040 125 525001 47525 SRES47 5K 1206 1 1 8W TRNP R230 R27 R28 R26 R53 R29 R110 R57 525020 5 525001 22115 SRES 2 21K 1206 1 1 8W NP R25 R13 R12 R32 R1 R31 R134 R66 52500010005 R171 R178 R177 R193 R231 R167 R61 R34 R89 71270260 i R82 R163 R135 R136 R169 R131 R112 R60 R56 71270259 525001 10019 SRES 1K 1206 1 1 8W TR 9XO056 R125 R71 RS4 R69 ROB R43 R144 R8 R206 R213 R214 R90 R168 R255 R256 1525001 33205 R173 R191 R181 R164 R170 R172 R189 R186 825040 58 R180 R91 R92 R93 R94 R95 R96 R97 R98 R22 R174 R201 R185 R104 R87 R33 R99 R260 R261 Ries 825001 10025 SRES 10K MF 1206 1 1 8W R139 R140 R121 R200 R107 R199 R103 R221 Ls R229 R204 R242 R241 R216 R217 R218 R243 Ep ES R246 R244 R245 R247 R248 R249 R250 R251
93. 9 C30 C40 C47 525020 45 ISCAP 820pF 0805 50V COG 5 TR 525020 55 ISCAP 2700pF 0805 50V X7R 5 TR C16 C42 525020 35 SCAP 0 1uF 0805 50V X7R 10 TR C2 C5 C7 C9 C14 C21 C22 C25 C34 C39 C44 C53 525020 185 SCAP 10pF CER 0805 100V 5 TR C28 C32 525026 15 SCAP 33uF TAN 7343 25V 10 TR LOW ESR 525026 25 ISCAP 100uF TAN 7343 10V 2096 TR C35 C36 C37 C41 C43 525040 25 SDIO 1A 400V DO 214BA GLS NP D10 D12 D13 D14 D17 D24 D25 525080 15 ISLED RED 1206 TR NP LED1 LED2 25040 3SMT SDIO MURD620CT 6A 200V ULTRA F 04 018 525049 25 SDIO MBRA130LT3 1A 30V SCHOTTK D20 D21 D22 D23 525040 135 SDIO MURB1620CT 16A 200V 016 525044 135 SDIO 1SMB5934BT3 24V 3W 021 525046 55 SDIO MMSZ5254BT1 0 5W 27V 596 T 022 023 525044 125 SDIO 1SMB5913BT3 3W 3 3V 5 TR 024 525044 55 SDIO 1SMB5931BT3 3W 18V 5 TR DZ7 DZ8 525001 15025 SRES 15K FXD 1206 1 1 8W TR R1 25001 6191SMT 525040 115 ISRES 6 19K 1206 1 1 8W TR NP SDIO MURS160 1A 600V FAST RECO R3 D1 D2 D3 D6 D7 D8 D9 D15 515128 105 SICS TL4311D LIN V REF 36V 40 X2 525071 25 SICS PWM 4 5 515000 10 17 3 2 518104 5
94. 9353 WELD Retum to Master TOC 5 8 9 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 6 F 6 TROUBLESHOOTING amp REPAIR Observe Safety Guidelines detailed in the beginning of this manual PROBLEMS SYMPTOMS The machine regularly overheats and the yellow thermal light is ON indicating a thermal overload POSSIBLE AREAS OF MISADJ USTMENT S FUNCTION PROBLEMS 1 The welding application may be exceeding the recommended duty cycle of the V350 Pro Dirt and dust may have clogged the cooling channels inside the machine Air intake and exhaust louvers may be blocked due to inade quate clearance around the machine Make certain the fan as needed F A N is operating properly The fan should operate when welding voltage is present and or when there is an over temperature condition TROUBLESHOOTING GUIDE RECOMMENDED COURSE OF ACTION 1 The 115VAC fan motor is controlled by the control board via the main switch board Perform the Fan Motor And 1 A thermostat or associated circuitry may be faulty See the wiring diagram One normally closed thermostat is located on the output choke and the other is located on the main switch board heat sink
95. 9532 1A0 IDENTIFICATION CODE Ojo ojo Ele lt BIZ o o THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A MANUFACTURING TOLERANCE PER E2056 DESIGN INFORMATION EQUIPMENT TYPE INVERTER WELDERS ON 3 PLACE DECIMALS 002 5626 pRawnBy 4 SUBJECT SNUBBER P C BOARD ASSEMBLY APPROVED pee SCALENONE DATE O 6 99 DRAWNGN M 19532 1 ON ALL ANGLES IS 5 OF A DEGREE MATERIAL TOLERANCE t TO AGREE WITH PUBLISHED STANDARDS Return to Section TOC Return to Master TOC 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 This information is vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the LINCOLN E ine Retum to Master Retum to Master TOC Y 4 2 8 5 3 Retum to Master TOC SVM ERROR REPORTING FORM We need to know if there are
96. AMIC 0 022MF 50V 10 C64 17900 8SMT IC SMD CMOSJNVERTER SCHMITTHEXHCi4 X1 25040 1SMT DIODE SMD 1A 400V FAST RECOVERY DO 21 20 520496 15 IC SMD CMOS DRIVERDISPLAY LED CCMCU _ X10 525049 25 DIODE SMD 1A 30V SMA SCHOTTKY 21 525068 55 IC SMD VOLTAGE CONVERTER SWITCHED CAP X11 25040 5SMT DIODE SMD DUAL 0 200A 70V UFR D24 D25 D26 515128 105 IC SMD VOLTAGE REF ADJ PECISION 4311 x12 525040 25 DIODE SMD 1A 400V DO 214BA AC D3 D6 D7 D19 515018 225 IC SMD ARRAY CLAMPING HEX SOIC 8 X14 525044 15 ZENER DIODE SMD 3W 5 1V 5 SMB 21 022 023 515018 115 IC SMD CMOS SWITCH ANALOG QUAD 201 SS_ X15 525046 45 ZENER DIODE SMD 0 5W 12V 5 SOD 123 210 M15458 4SMT IC PWM CONTROLLER LMODE 2842A SOIC x16 525044 45 ZENER DIODE SMD 3W 15V 5 SMB DZ11 517900 265 IC CMOS SMD MUX DAT 8 INPUT HC151 SS 2 525044 65 ZENER DIODE SMD 3W 27V 5 SMB 212 517900 105 IC SMDCMOS REGISTER SHFT S PI SO 8 BI 525044 35 ZENER DIODE SMD 3W 12V 5 SMB DZ6 DZ7 DZ8 DZ9 M15105 7SMT IC SMD CMOS CONVERTER A D MPU 10 BIT X5 518248 10 CONNECTOR MOLEX MINI PCB 10 PIN 133 515128 185 IC OP AMP SMT QUAD HIGH PERF 33074D X6 X7 524020 12 CONNECTOR MOLEX MINI PCB 12 PIN TIN J331 517900 285 IC SMD CMOS HEX INVERTING BUFFER 3 ST X8 515000 255 OPTOCOUPLER SSR FORM 1A 1B 0 17A 8 PI och 525050 15 TRANSISTOR SMD NPN 0 5A 40V SOT 23 MM Q2 03 04 Q7 525050 25 TRANSISTOR SMS PNP SOT23 0 5A 40V MM 06
97. ATIC DAIEI2 15 99 3789 100 2 E G 5 V350 PRO Return to Section Return to Master TOC Return to Section TOC Return to Master TOC Ojo ojo Ele lt BIZ o o Return to Section TOC Return to Master TOC G 6 SCHEMATIC CONTROL PC BOARD 3 D99 10 MURS32OT 010 MURS320T3 1N5358B 244 1 gE ESNL 210A 10A DZ1 S8 SNI J10B DZ2 S9SESNI AS 229 ELECTRICAL DIAGRAMS 3 R146 1 gt RESET RAMP AAA 1 4 75 2 11 MC33074AD eLozesunW 860 Z MURS320T3 J10B X D101 AD8403ARY10 8 2 5 a 2 MURS320T3 Pi Sors MRT R160 D55 D51 W VA 47 5 516 075 10 149 0 1uF C127 SAWTOOTH GENERA TOR B2 9 AGND1 0810 AGND2 0811 DGND 0812 H BUSY DB13 FRIMARY CURRENT SENSE D33 BAV99 R65 33 2K X6 CAD DATAS 12 02 AD 4 11 DATAS 10 AD DATAS R63 33 2K X 71 1 00K 1 00 68
98. BOLT LOCATIONS Mounting Bolts 3 16 Allen Bolts 9 64 Allen Bolts Mounting Bolts LEFT SIDE V350 PRO LINCOLN 5 88 NOTES LINCOLN V350 PRO F 88 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 89 89 TROUBLESHOOTING amp REPAIR CURRENT TRANSDUCER REMOVAL AND REPLACEMENT A WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the current transducer for maintenance or replacement MATERIALS NEEDED 5 16 Nut Driver 1 4 Nut Driver 1 2 Wrench 3 8 Wrench Channel Locks Retum to Section TOC Retum to Master TOC Flathead Screwdriver Phillips Head Screwdriver Ha
99. CURRENT TRANSDUCE SIGNAL IN 4V 500A OUTPUT CURRENT TRANSDUCER INPUT VOLTAGE e gt MSELO MSEL1 1 2W HV 67 R75 lout Vin 0 99mA CURRENT LIMIT 15V aK K Y BAT54934 V A 15V d R62 8 14 MC33074AD 1 59 221 5 URRENT NODE CONTROL DISABLE FETS AS SOON AS PRIMARY CURRENT 15 GREATER THAN A REFERENCE LEVE VA 1 50K R691 00K R113 1 2W HV R209 R1276 81K 15 MC33074AD 4 75K URRENT FEEDBAC INTEGRATOR R122 1 2W HV Q9 2 Q9 sme Q9 9 Q9 9 21 8024 004 3 0 1 2W HV 3500 VOLTS ON CONNECTOR IDEAL VOLTAGE 2 6 202 6 70V 0 9V cet LEZSZSW LINCOLN B e 6ed VA ALS Mel LEZSZSINI 1 50K AD DATA 0 13 m 4 CONVERSION 5V 1g gy X6 POT CS CLK VDD RS AGND1 1 CS AGND2 SCK 3 SYS RES SHDWGND3 1 MOSI 501 AGND4 L2 SDO DGND AD8403ARU1 X32 CLK VDD RS AGND1 2 SHDWGND3 500
100. D AS BLY E APPROVED SCALENONE DATE 9 30 99 DRAWINGNo L 11107 2 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 This information is vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the LINCOLN machine V350 PRO E ELECTRICAL DIAGRAMS eir SCHEMATIC MODE SELECT PRINTED CIRCUIT BOARD CLEGT Return to Section TOC Return to Master TOC gt gt 10 E HC14A 15 100pF 1009 D HC14A Wesel AL 16 DATA OUTI 2 5 xy 6 STROBE ae 100V 5 BAN LEDS LED1 LEDZ LED3 A 17 ep HC368A ENABLE BAN x3 DATA IN ese 1 2 1 cock Rx MC14489 R24 R23 475K C10 475 2 07 21
101. E 10 VM NOTES DIODES UNLESS OTHERWISE SPECIFIED SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD THIS DIAGRAM MAY SUPPLY SOURCE POINT NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING COMMON CODE COMMON CONNECTION NUMBER FILENAME M19372 1AB 1 1 FRAME CONNECTION THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC CO EARTH GROUND CONNECTION AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS PERMISSION OF THE LINCOLN ELECTRIC CO e UNLESS OTHERWISE SPECIFIED TOLERANCE EQUIP ON HOLES SIZES PER E 2056 7 Ci E Unified SPI Panels ON 2 PLACE DECIMALS IS 02 COLN ELECTRIC TYPE ON PLACE DECIMALS 15 002 ELAND OHIO U S A suasecr Mode Select Board Schematic ON ALL ANGLES IS 5 OF A DEGREE E MATERIAL TOLERANCE t TO AGREE __ NONE SHT MLD pate 06 12 00 _ Lo c B Min NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual LINCOLN amp V350 PRO Return to Section TOC Return to Master TOC 0 18 ELECTRICAL DIAGRAMS G 18 PC BOARD ASSEMBLY MODE SELECT BOARD REFERENCE ITEM PARTNO REQD D SIGNATORE DESCRIPTION 1 L11110 A 1 P C BOARD BLANK L11166 1 Poa FLEX ASSEMB
102. E2454 BEFORE HANDLING N C USE ITEM 3 TO STAND ITEM 12 FROM THE P C BOARD THERE MUST NOT BE MORE THAN 020 GAP BETWEEN SPACER AND P C BOARD OR BETWEEN SPACER AND LED ENCAPSULATE P C BOARD SPACER AND LOWER HALF OF LED N D DISP 1 THRU DISP 8 MUST ALWAYS BE MATCHED BY VENDOR NAME DO NOT MIX DIFFERENT VENDORS ON THE SAME BOARD ASSEMBLY N E DO NOT INSERT THESE COMPONENTS CONNECTOR MUST BE GREASED WITH ITEM 4 PRIOR TO ENCAPSULATION REL L11130 2CO CODE BUY PER E3867 TEST PER E3856 D THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A UN DTOLERAN MANUFACTURING TOLERANCE PER E2056 X INFO Chg Sheet No ON 2 PLACE DECIMALS IS 702 ON 3 PLACE DECIMALS IS 002 5826 DESIGN INFORMATION REFERENCE EQUIPMENT TYPE MISCELLANEOUS ON ALL ANGLES IS 1 5 OF A DEGREE DRAWNBY ITH PUBLISHED STANDARDS ENGINEER SPI DISPLAY P C BOARD ASSEMBLY DONOT SCALE THIS DRAWING APPROVED SCAEFULL DATE I 19 99 DRAWNGNo 11130 2 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 This information is pro
103. ESCRIPTION The following procedure will aid the technician in removing the main switch board for main tenance or replacement Retum to Section TOC Retum to Master TOC MATERIALS NEEDED 5 16 Nut Driver Flathead Screwdriver 7 16 mm Socket 3 16 Allen Wrench 3 8 Nut Driver This procedure takes approximately 35 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 62 62 TROUBLESHOOTING REPAIR MAIN SWITCH BOARD REMOVAL amp REPLACEMENT continued FIGURE F 23 MAIN SWITCH BOARD LEAD LOCATIONS Retum to Section TOC Retum to Master TOC Retum to Section TOC Retum to Master TOC PROCEDURE 1 Remove the input power to the V350 PRO 5 Using a 5 16 and 3 8 nut driver remove the input lead shield from the area at the bottom of 2 Using a 5 16 nut driver remove the case wrap the main switch board around cover Using a 7 16 socket remove leads 201 202 6 3 Perform the Input Filter Capacitor Discharge 203 204 205 206 207 208 209 from the Procedure detailed earlier in this section switch board Note lead terminals locations and washer positions upon removal Retum to Master TOC B 8 7 Locate disconnect three harness plugs associated with the main switch board Plugs CAUTION 3 20 34 21 22 See Figure F 23 Observe static precautions detailed in PC Boar
104. HERMAL PROTECTION Two normally closed NC thermostats protect the machine from excessive operating temperatures These thermostats are wired in series and are con nected to the control board One of the thermostats is located on the heat sink of the switch board and the other is located on the output choke Excessive tem peratures may be caused by a lack of cooling air or operating the machine beyond its duty cycle or output rating If excessive operating temperatures should occur the thermostats will prevent output from the machine The yellow thermal light located on the front of the machine will be illuminated The thermostats are self resetting once the machine cools sufficiently If the thermostat shutdown was caused by excessive output or duty cycle and the fan is operating normally the power switch may be left on and the reset should occur within a 15 minute period If the fan is not turn ing or the air intake louvers are obstructed then the power must be removed from the machine and the fan problem or air obstruction corrected PROTECTIVE CIRCUITS Protective circuits are designed into the V350 PRO to sense trouble and shut down the machine before damage occurs to the machine s internal components OVER CURRENT PROTECTION If the average current exceeds 450 amps for one sec ond then the output will be limited to 100 amps until the load is removed If the peak current exceeds 600 amps for 150 ms the output will be limi
105. ITEM 7 525001 47515 SRES 4 75K 1206 1 1 8W SM100 8 09 RTA PLACE CONNECTOR KEYING PLUG ITEM 9 OVER HEADER PIN IN LOCATION SHOWN PLUG SHOULD BE INSERTED BELOW CONNECTOR TOP SURFACE ALL CONNECTORS MUST BE GREASED WITH ITEM 5 PRIOR TO ENCAPSULATION ENCAPSULATION PER E1911 E TO A MINIMUM DEPTH SUCH THAT ALL COMPONENT LEADS ARE COVERED o o 2 8 gt 2 wn 8 B cis Fees eU mie 272 wu R264 R265 R282 Ee es 2 cot R167 R133 w CAPACITORS MFD VOLTS INDUCTANCE HENRIES RESISTANCE OHMS BUY PER E3867 TEST PER E3856 C THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A Chg Sheet No X INFO DESIGN INFORMATION REFERENCE EQUIPMENT TYPE INVERTER WELDERS 5626 DRawnBy Fy OTHER COMPONENT SIDE BACKSIDE XEUE SUBJECT CONTROL P C BOARD AS BLY MATERIAL TOLERANCE 5
106. LET AND ALL AROUND EYELET ON COPPER SIDE ONLY NO ICICLES OR SOLDER BLOBS PERMITTED N G AFTER SOLDERING INSPECT POWER TERMINAL CONNECTIONS TO ENSURE SOLDER HAS PROPERLY WET COMPONENT SIDE PAD ON A MINIMUM OF OF THE 4 LEGS OF THE POWER TERMINAL N H BAR MUST BE FREE OF ENCAPSULATION MATERIAL ON BOTH SURFACES AROUND MOUNTING HOLES AND ENTIRE LENGTH OF MOUNTING SURFACE ENCAPSULATION MATERIAL MUST NOT EXTEND BEYOND THE MOUNTING SURFACE PLANE 2 PLACES N J DO NOT COAT WITH ENCAPSULATION MATERIAL TOP AND BOTTOM 80 05 DIA N K PC BOARD HOLES TO BE FREE OF ENCAPSULATION MATERIAL AND SEALANT FOR A DIAMETER OF 50 FOR THE LARGER HOLES AND 25 FOR THE HOLES BOTH SIDES OF BOARD 4 PLACES N L THIS AREA TO BE COVERED ON COMPONENT SIDE OF BOARD WITH SEALANT PRIOR TO ENCAPSULATION MATERIAL MUST BE APPLIED FROM TOP TO COMPLETELY FILL TO UNDERSIDE OF DEVICE THEN APPLY SEALANT AROUND BASE OF DEVICE THIS AREA BE COVERED ON OPPOSITE COMPONENT SIDE OF BOARD WITH ITEM 8 PRIOR TO ENCAPSULATION DO NOT COAT WITH ENCAPSULATION MATERIAL ON THE TOP SURFACES NOR THE THREADS N N THESE SURFACES MUST BE MAINTAINEDCO PLANAR WITHIN 010 THROUGH ENTIRE SOLDERING AND SEALING PROCESS SEALANT HEIGHT BETWEEN MODULES NOT TO EXCEED 17 MAX MANUFACTURING TOLERANCE PER 2056 216 Sheet No X INFO G 12
107. LY T15176 1 0 SPACER E3539 0102 ELEC INSUL COMPOUND FOR ITEMS BELOW REFER TO ELECTRONIC COMPONENT DATABASE FOR COMPONENT SPECIFICATIONS 513490 104 39 20 516668 11 C2 C3 C4 C5 C6 C8 C11 C12 0 1 50V 513490 42 C7 C9 1 0 35V 516668 5 10 22 23 25 28 022 50V 516668 2 13 14 15 16 17 18 47P 100V 513490 40 C29 C30 C31 C32 2 7 50V 518248 10 T13657 11 519400 1002 519400 1001 519400 4751 g Return to Section TOC Return to Master TOC ala c I m 2 m A LED1 LED2 LED3 LED4 LED5 RED LED 10 0K 1 4W R2 R4 1 00K 1 4W R3 R24 R25 4 75K 1 4W R5 R7 10K 1 2W TRIMMER R6 1 50K 1 4W R9 R10 R11 R12 R13 R14 12 1K 1 4W R15 R16 R17 R18 R19 R26 R27_ 100 1 4W R20 267 1 4W R21 R23 475 114 PUSHBUTTON SWITCH SPST IC HC14A SS SCHMITT INVERTER IC HC151 SS 8 INPUT MULTIPLEXER 1 517900 28 1C 3 STATE 2 BIT BUFFER MODE SELECT E ym m S17900 10 IC PI SO 8 BIT SS SHIFT REGISTER 7 8 ARB 27 M15105 7 1 IC 10 BIT 55 A D CONVERTER V E 28 820496 1 1 IC LED DISPLAY DRIVER 2 15 19 20 gt 519400 1000 519400 2670 519400 4750 T13381 17 517900 8 517900 26 o a p Zu CAPACITORS MFD VOLTS INDUCTANCE HENRIES RESISTANCE OHMS BUY AS Return to Section TOC
108. LY 1 Nominal Operating Voltage 30VDC to 74VDC Jt 600 MAX DRAW 1581 A AX 400V 8 RUZ2IK m 221 a 221K SOLENOID DRIVE ON OFF iw 4 18 MIN to 50 MAX marae 213 5 CURRENT SENSE bo CURRENT ON OFF V PERIPHERAL COM il HEN Y T C Hve 13 200V Q A H come ono aleg 2842408 5 k 3 1 10 V n 1 0 8 is us gt CURRENT SENSE h 0 la E Ojo ojo Ele lt o o F 01 50 Ar tea 7 aN 50 PIN any 8140 AND 8139 SETS PULL CURRENT 0 760 mA WHEN 9145 IS SHORTED Bae eter MS gt STEADY STATE LOGIC TABLE CHIP SELECT 3 BOARD 10 000 0001 Bown WHEN In TS IN THE Cer 32K 01W A 155 1 _ SOMA MAX DRAW INPUTS
109. Master TOC B 6 OPERATION Auxiliary Power 115VAC 42VAC and 24VAC power is available from the two 14 pin amphenols on the rear of the unit K1728 2 Construction model of the Invertec V350 Pro does not have the amphenols These supplies are intended to supply power for auxiliary equipment like wire feeders and the TIG Module 115VAC supply is rated at 2 amps and is protected by a 2 5 amp breaker located by the amphenol 42 VAC supply is rated at 5 5 amps and is protect ed by a 6 amp breaker located by the amphenol 24 VAC supply is rated at 5 5 amps and is protect ed by a 6 amp breaker located by the amphenol Limitations The V350 Pro is not recommended for processes other than those listed The V350 Pro can only be used with the recom mended equipment and options Recommended Processes Properly equipped the Invertec V350 Pro supports GMAW FCAW SMAW GTAW and CAC A processes for a variety of materials including mild steel stainless steel cored wires and aluminum V350 PRO LINCOLN 5 C 1 TABLE OF CONTENTS 8 ACCESSORIES SECTION 5 E IINE MEL Section C Connection of Lincoln Electric Wire 2400201 0 201 0 000 0 0000 C 2 Thru C 9 V350 PRO LN 25 with Optional 6 Pin K441 1 C 2 8 V350 PRO LN 25 with Optional 6 K857
110. Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR FAULT CODES DESCRIPTION CORRECTIVE SERVICE FACILITY CORRECTIVE DEFINITION ACTION ACTION 35 Capacitor bank Make sure the reconnect There may bea problem B lower is over switches are configured with the V F signals from voltage for the input voltage the main switch board to being applied to the the control board machine The machine is self clearing when Perform the Main Switch condition ceases Perform the Power The control board may be faulty 37 The soft start Turn the machine off There may be a problem function failed back on to reset the machine with the V F signals from the main switch board to the control board Perform the Main Switch Perform the Power Board Test The control board may be faulty NOTE If more than one fault message is being displayed perform all the checks for the faults before replacing the printed circuit board V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Y 4 2 5 Retum to Master TOC F 12 TROUBLESHOOTING amp REPAIR F 12 FAULT CODES DESCRIPTION CORRECTIVE SERVICE FACILITY CORRECTIVE DEFINITION ACTION ACTION 39 Electrical glitch on the Possibly caused by an Perform the Main Switch primary over current fault
111. NA 1 FOR MACHINES SUPPLIED WITH INPUT CABLE N B SINCE COMPONENTS OR CIRCUITRY OF A PRINTED CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING FOR SINGLE PHASE INPUT CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRICAL CODE THE INTERCHANGEABILITY OF A COMPLETE BOARD THIS DIAGRAM MAY NOT SHOW THE EXACT CONNECT BLACK AND WHITE LEADS TO SUPPLY CIRCUIT COMPONENTS OR CIRCUITRY HAVING A COMMON CODE NUMBER olg WRAP RED LEAD WITH TAPE TO PROVIDE 600V INSULATION N C PLACE A LEAD ON APPROPRIATE CONNECTION FOR INPUT VOLTAGE 22 5411 2 FOR THREE PHASE INPUT CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRIC CODE CONNECTION SHOWN IS FOR 550 575V OPERATION J22 M4 J8 CONNECT BLACK RED amp WHITE LEADS TO SUPPLY CIRCUIT i P55 49 442 ES og 2 FOR MACHINES NOT SUPPLIED WITH INPUT CABLE aS 4 555 FOR SINGLE PHASE INPUT GROUND MACHINE PER NATIONAL AND LOCAL ELECTRICAL CODES Z gt 5 Es CASEFRONT BASE PANEL 256 5 5 9 8 CONNECT TERMINALS U amp W TO SUPPLY CIRCUIT cos EN ERIT o FOR THREE PHASE INPUT GROUND MACHINE PER NATIONAL AND LOCAL ELECTRICAL CODES CONNECTOR CAVITY NUMBERING SEQUENCE 8 ps CONNECT TERMINALS U V amp W TO SUPPLY CIRCUIT ELECTRICAL SYMBOLS PER E1537 VIEWED FROM COMPONENT SIDE OF BOARD 6 2 2000A ix 5 Bs 93707 ec NOTE This diagram is for reference only It may not accurate for all machines covered this manual The wiring diagram specific
112. NENT SIDE OF BOARD 115 Volt Amphenol FLEX bottom amphenol CIRCUIT CIRCUIT J34 lt 415 VOLT SPI on back of machine 4 J amp 2 lt 5 VOLT SPI NN OA LH J amp 3 lt 168 d a KA x c 2885 2091225528 25279232982 6 Pin Ampehnol 5858858558885 8585858858 55855 s front of machine 5 5 11777171717 TITTTTTTTT T TTTTT1TTT17 OS 332 Dax ORAN 2 595989509565 lt MISO T 2922888 55 299 2680 959 2992888 059 9997 5 J38 lt lt 5 88 5 eg 5586 5 88 5 4 m POS d 845 SZ E 521155925 8 52 g 22 wo SATP Dok 8 8 6 8 to J340 lt GROUND SPI amp 9 Vio 2 82 56588 2 o S z 28 o CV FLUX CORE LOCAL REMOTE REMOTE WELD Tir 22 lt Sag ES REMOTE TERMINALS AMPS VOLTS NA PC BOARD COMPONENTS SHOWN FOR REFERENCE CONTROL 7 Oca ON ON OFF ONLY ALL COMPONENTS ARE NOT SHOWN E AMPHENOLS VIEWED FROM FRONT OUTSIDE OF MACHINE 2 HOT ARC dL QVE MODE SELECT 9 START CONTROL OO SsnAUPANEL DISPLA
113. NOIsE R82 1 00K C39 cia S LED3 VN A9 GREEN oz cawsi 3v 15SPI Ves X gt R134 221K C40 LED4 VA SZ GREEN 0666815 35V b X LINCOLN B GSPI 7 CONTROL BOARD VOLTAGE SUPPLIE X4 5 V ches R30 15V 66658151 C133 0 1uF 100 VS MSL 62658151 GROUND TIE POINT O D46 1 5W 6 2V 1SMB5920 ELECTRICAL DIAGRAMS gs 4 16 2 9 12 1 914 R MMBT4403 145407 3 LLASHZSZSWIN D58 RS232 gt 1 RS232 TXD 4 91 N 5VRS232 R167 1 00K OCI2 HCPL 0601 Nem MMSZ5248BT1 Vers232 62 10uF 16V 10VRS232 C66 Q 10 86232 Tour 16V VSS VCC 2 C2 Toug SVRS232 16V 1 3 145407 GRS232 Vers232 D 8 145407 16 10 145407 16 132 15 6 32 145407 64 V deopr HiB8PZSZSWW D52 18V 1 2W MMSZ5248BT1 Vers232 5VRS232 X16 R 14 145407 16 16 145407 R131 1 00K 61 C92 1 ACO
114. POUND 32500112135 SRES IZIK 1206 MF 1 14W R70 52480377 FLASH SOFTWARE 525001 33225 SRES 33 2K 1206 1 1 8W TRNP REG R65 R233 5248042 1 CPLD SOFTWARE 25001 1000SMT SRES 100 1206 1 1 6W TRNP R62 R44 R52 R30 25001 2210SMT SRES 221 1206 1 8W NP RED R48 R102 R197 RAS s 25001 2671SMT SRES 2 67K 1206 1 1 8W TRNP R109 00000000 Doo Een PLUG eens 525001 15025 SRES 150K 1206 1 6 1 BW NP R117 R125 OOOOOOOO FOR ITEMS LISTED BELOW REFER TO ELECTRICAL DATABASE FOR COMPONENT mE 25001 1500SMT RES 150 1206 1 1 6W TRINP R196 R198 nd SPECIFICATIONS RIST RIGA RIST R160 R148 RIGT RIGS 8155 dd R152 R149 STRAZNA03 SOZS TR S0475 N Q17 016 015013011 STRAJRLRI20N 10A 100V MOSFET 09 010 STRAMMBT4401LTNPN SOT 23 12 Q4 G7 05 06 Q1 016 019 020 STRAZNIO02TRNP 0302 SICSRF7103 NP CONAP TINMINLNP 254122 CONSP TIN MINLNP J9 CONZP TINMINLNP JIOA 108 CON 10P MINLNP 3 CON 16P MININP 167 2 CON SP TIN MININP or 265 J8 SICS MAXABSESANP EZ SICS74ACTS3 OCTAL TRANS LAT Xa SICS TMS320F240POA NP X22 SICS 0601 OPTOCOUPLER 00110002 OCIS OCA SICS ANBZE27 SXIL16MHZ HC4020PF NP Yi SICS MCTA5407 RECEIVERIDRVRRS X16 SICSADG417 SPST CMOS SWT SOB Xi3 xa 74HC245 NEW PACKAGE X33 SICS OP 27G OPAMP SO8 TRNP xi SICS MC33074 QUAD OPAMP SO14 T X8 14 X20 SICS 28F800B5 90 FLASH RO 90n X25 SICS 128Kx16 20nS
115. PPLY FROM POWER PC BOARD CONNECTOR PLUG PIN NO V350 PRO LINCOLN 5 NORMAL ACCEPTABLE LEAD NO VOLTAGE OR IDENTITY READING 65 4 38 42 VDC 66 412 4 15 VDC 410 408 5 VDC 410 411 4 15 VDC 410 403 4 5 VDC 401 406 4 5 VDC 405 402 4 15 VDC 401 438 4 40 VDC 431 28 NOTES LINCOLN V350 PRO F 28 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 29 29 TROUBLESHOOTING REPAIR OUTPUT DIODE MODULES TEST A WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This test will help determine if any of the output diodes are shorted Retum to Secti
116. R MODE BOARD REMOVAL AND REPLACEMENT continued FIGURE F 27 CASE FRONT SCREW REMOVAL 5 16 Screws TD WELD MODE T HOT START afi CONTROL cosnexsorr 4t o 7 j Su e ef naamw 2 Ds UE 0 2 Welder Output Input Power Terminal Screws gt Switch Screws 5 16 Screws 5 Using a 5 16 nut driver remove the four 7 Using a phillips head screwdriver remove the screws from the top and bottom of the front of four screws from around the two welder output the machine See Figure F 27 terminals on the front of the machine See Figure 27 6 Using a phillips head screwdriver remove the six screws and their washers from around the 8 The front of the machine may now gently be input power switch See Figure F 27 pulled forward to gain access to the mode board Note The front of the machine cannot be removed completely only pulled forward a few inches V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Return to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 68 10 11 12 13 F 68 TROUBLESHOOTING amp REPAIR MODE BOARD REMOVAL AND REPLACEMENT c
117. R SCHMITT HEXHC14A SS Blt 17900 26 1 IC CMOS MUX DAT 8 INPUT HC151 SS 517900 28 1 5 3 5 2 4 517900 10 1 IC CMOS REGISTER SHFT S PI SO 8 BIT SS M15105 7 1 IC CMOS CONVERTERJA D MPU 10 BIT SS 8 8 520496 1 2 6 7 IC CMOS DRIVER DISPLAY LED CC MCU T13657 11 0 LED5 LED8 RED LED B CAPACITORS MFD VOLTS l INDUCTANCE HENRIES E mE 2 RESISTANCE OHMS p dts i E LEDs E 2 o T o E IDENTIFICATION CODE 918 2 w g 8 NOTES CAUTION THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY SEE E2454 BEFORE HANDLING DO COAT WITH ENCAPSULATION MATERIAL DO NOT INSERT THESE COMPONENTS N D INSERT 3 BETWEEN ROWS OF LED s 3 MUST BE FLUSH WITH LED BULB N E ALL CONNECTORS MUST BE GREASED WITH ITEM 4 PRIOR TO ENCAPSULATION N F LED 1 THRU LED 16 MUST ALWAYS BE MATCHED BY VENDOR NAME AND VENDOR PART NUMBER DO NOT MIX DIFFERENT VENDORS OR VENDOR PART NUMBERS ON THE SAME BOARD ASSEMBLY ENCAPSULATE WITH HUMISEAL 1A27LU PER E1844 OR WITH EQUIVALENT AS APPROVED BY LINCOLN ELECTRIC COMPANY 2 COATS BUY PER E3867 5 TEST E3856 ST ajg 2 MANUFACTURING TOLERANCE PER EAS Chg Sheet No um DESIGN INFORMATION REFERENCE EQUIPMENT TYPE MISCELLANEOUS ele ONAL ANGLES A DEOREE Fan SPI STATUS INPUT P C BOAR
118. S G 16 TUM PC BOARD ASSEMBLY STATUS e P C BOARD REFERENCE zu PART REQ D DESIGN TORS DESCRIPTION 918 111107 1 111166 1 1 FLEXASSEMBLY 165 2 E3165 25 35 1 00 539 01 oz ELECTRICAL INSULATING COMPOUND 8 8 FOR ITEMS LISTED BELOW REFER TO ELECTRONIC COMPONENT DATABASE FOR COMPONENT SPECIFICATIONS E 5 513490 104 1 C1 CAPACITOR TAEL 39 20V 10 B 5 516668 11 9 2 3 4 5 6 8 11 12 27 0 1 50V 10 513490 42 3 7 9 C26 CAPACITOR TAEL 1 0 35V 10 ec 516668 5 4 C10 C21 C22 C25 CAPACITOR CEMO 022 50V 2096 516668 3 0 13 14 15 16 17 18 CAPACITOR CEMO 100P 100V 5 13490 40 2 23 24 CAPACITOR TAEL 2 7 50V 10 18248 10 1 131 10 524020 4 1 2311 CONNECTOR MOLEXMINI PCB 4 PIN LED 1 LED 2 LED 3 LED 4 LED 6 T13657 11 14 LED 7 LED 9 LED 10 LED 11 LED REDLED 12 LED 13 LED 14 LED 15 LED 16 19400 1002 2 R1 R25 RESISTOR MF 1 4W 10 0K 1 19400 1001 5 R2 R4 R6 R24 R27 RESISTOR MF 1 4W 1 00K 1 19400 4751 2 R3 R22 RESISTOR MF 1 4W 4 75K 1 19400 1212 6 R9 R10 R11 R12 R13 R14 RESISTOR MF 1 4W 12 1K 1 19400 1000 5 R17 R18 R19 R23R26 RESISTOR MF 1 4W 100 1 19400 2670 1 RESISTOR MF 1 4W 267 196 o 19400 4750 1 RESISTORMF 1 4W 475 196 713381 16 2 SWITCH PUSHBUTTON SPST D 517900 8 1 IC CMOS INVERTE
119. S SELECT to the REMOTE position 8 Set the ARC CONTROL to the 0 position and then adjust to suit 9 Set wire feed speed and voltage at the LN 10 NOTE The voltage set point displayed on the V350 PRO should be ignored when operating in the remote control mode with the LN 10 10 See the LN 10 manual for details on accessing the control DIP switch 11 The control DIP switch inside the LN 10 should be set as shown below for operation with the V350 Pro Power Sources ON 1 2 3 4 5 6 7 8 51 ggg Figure C 8 LN 10 V350 PRO 14 PIN AMPHENOL 24 42 TO LN 10 K1505 TO WORK ELECTRODE CABLE TO LN 10 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC ACCESSORIES Cobramatic Connection Instructions A Cobramatic can only be used with a Factory or CE version of the V350 1 Turn the Invertec power switch off 2 Connect the control cable from the Cobramatic to the 24 42 VAC 14 pin wire feeder amphenol on the rear of the Invertec 3 Connect the electrode cable to the output terminal of the polarity required by electrode Connect the work lead to the other terminal 4 Set the meter polarity switch on th
120. SIN E2861 5 REQ D ELECTRICAL INSULATING COMPOUND PART NUMBER SPECIFICATIONS DESCRIPTION FOR ITEMS LISTED BELOW REFER TO ELECTRONIC COMPONENT DATABASE FOR COMPONENT REFERENCE N A 1 IPCB MTP DC POWER ASSY NP N A 525001 18215 5 5 1 82 1206 1 1 8 R14 R20 525001 56215 5 5 5 62 1206 1 1 8 R12 R28 R45 525001 10025 5 5 10 1206 1 1 4 09 007 R4 R13 R22 R2 R27 R56 525001 56225 5 5 56 2 1206 1 1 8 500 R38 R39 525001 10035 ISRES 100K TKF 1206 1 1 8W TR R5 R10 R29 525001 33205 5 5 330 1206 5 1 4 R41 R53 525001 24905 SRES 249 1206 195 1 AW TR NP R33 525001 22135 SRES 221K 1206 196 1 8W TR NP R34 R52 525005 15 5 5 0 05 1 2 R11 R30 525009 10015 ISRES 1K 5 2W TR NP R26 25001 33R2SMT 5 5 33 2 1206 1 1 4 R15 R16 525001 43225 SRES 43 2K 1206 196 1 AW TR NP R18 R49 525001 44225 5 5 44 2 1206 1 1 4 R42 R51 525084 15 SSRES THERMISTOR POS R50 525084 25 SRES THERMISTOR POS R17 R24 525024 125 SCAP 4 7uF TAN 35V 20 TR NP C1 C10 C17 C18 C19 C20 C24 C33 C38 C6 525024 25 ISCAP 1uF TAN 3528 35V TR NP C23 C2
121. SUPPLY SOURCE POINT NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE COMMON CONNECTION NUMBER FILENAME M19338 2BA 1 1 FRAME CONNECTIO THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC CO EARTH GROUND CONNECTION AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS PERMISSION OF THE LINCOLN ELECTRIC CO UNLESS OTHERWISE SPECIFIED TOLERANCE p T SENN EEEE EQUIP MISC 231 2311 ON 2 PLACE DECIMALS 15 02 a 1 ON 3 PLACE DECIMALS 1S 002 6 2 2000 EVELAND OHIO U S A STATUS INPUT PCB SCHEMATIC ON ALL ANGLES 15 5 DEGREE NUNE MATERIAL TOLERANCE t TO AGREE SCALE SHT MLD 05 10 00 _ 5060 _______ M 19338 Return to Section TOC Return to Master TOC NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual LINCOLN E Vaso PRO 6 16 ELECTRICAL DIAGRAM
122. SVM152 A JULY 2000 INVERTEL 350 For use with machine code numbers 10651 10669 Retum to Master TOC View Safety Info 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 READ ING THIS MANUAL AND THE SAFETY PRECAUTIONS CON TAINED THROUGHOUT And most importantly think before you act and be careful Retum to Master TOC View Safety Info 5 Y 4 2 5 4 SERVICE MANUAL View Safety Info Retum to Master TOC LINCOLN Copyright 2000 Lincoln Global Inc World s Leader in Welding and Cutting Products Sales and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com Retum to Master Retum to Master TOC Y 4 2 8 5 3 Retum to Master SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS 1 Diesel engine exhaust and some of its constituents The engine exhaust from this product contains are known to the State of California to cause can chemicals known to the State of California to cause cer birth defects and other reproductive harm cancer birth defects o
123. See the wiring diagram Note Removal Procedure be required to gain access to the heat sink thermostat An attached wire feeder will not function correctly Make certain the wire feeder control cable is connected to the correct 14 pin amphenol type plug 115VAC or 24 42VAC for the wire feeder being used See the connection diagram Check the two circuit breakers located at the rear of the machine Reset is tripped The wire feeder or control cable may be faulty CAUTION 1 Perform 2 Check the leads between 14 pin amphenol type plugs and the auxiliary transformer for loose or faulty connections If for any reason you do not understand the test procedures or are unable to perform the test repairs safely con tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR Observe Safety Guidelines detailed in the beginning of this manual PROBLEMS SYMPTOMS The machine s welding output is very high and uncontrollable POSSIBLE AREAS OF MISADJ USTMENT S FUNCTION PROBLEMS Put the Control Select in the Local position If the problem is
124. TSOP X SICS MC68332 X2 SICS MC79LO5ABD SICS 74VHC14 NP X10 X30 SICS ADB403ARUI0 X6 X32 51 5 7945 old package X12 ICSMIC4451BM 2 SICS ADG409BR X15 105 9536 15 VO44 xm SICS25128 SERIAL EEPRNP SICSLTIO16 COMPARATOR X6XT SWI 78B08S DIP SPST SP NP Si SICS ADT862 DUAL 12BIT 250KSPS 19 51 54 6 2 1 50 SICS XCS20FPGA RES 100K AX 5 1 2WHIVOLT TR RIS RIS RS RIT SDIO MURSS20T3 3A 200VULTRAFAS D51 D55 096 057 098 099 D100 0101 SCAP 100pF 0805 COG 1007 5 6 C15 C18 C22 C25 C27 SRES 100 0805 1 1 10W R223 R224 R240 R225 R227 R228 DIO 1NS358B 073074 DIO IN5333B 071072 SDIOMBRA130LT3 1A 076077 D114 D115 SRES 332 1206 1 1 4W RZGZ 8263 R264 R265 R266 ROGT SDIO BAV7O D84 085 086 089 090 091 Is Is re e len Io 525006 1080 C138 C134 C133 C125 C55 696 C98 C100 C28 C82 C14 C11 C83 103 C121 C101 C117 C115 525060 25 C111 C113 C85 C90 C48 C93 C109 C120 C127 525051 85 25020 3SMT SCAP 0 1uF 0805 50V X7R 10 TR_ C106 C95 C105 C73 C68 C8 C114 C108 C99 IT E C76 C75 C84 C79 C67 C88 C80 C50 C78 LES C23 C21 C81 C51 C92 C58 C57 C52 C60 C59 S244 C131 C123 C1 82
125. The DC current flow through each primary winding is clamped back to each respective input capacitor when the IGBTs are turned off This is needed due to the inductance of the transformer primary winding The firing of the two switch boards occurs during halves of a 50 microsec ond interval creating a constant 20 KHZ output In some low open circuit Tig modes the firing frequency is reduced to 5KHZ The Invertec V350 Pro has a F A N fan as needed cir cuit The fan operates when the welding output ter minals are energized or when a thermal over tempera ture condition exists Once the fan is activated it will remain on for a minimum of five minutes The fan dri ver circuit is housed on the switch board but it is acti vated from a control board signal NOTE Unshaded areas of Block Logic Diagram are the subject of discussion V350 PRO LINCOLN 5 Retum to Section TOC Retum to Master TOC 4 4 THEORY OPERATION FIGURE 4 POWER BOARD CONTROL BOARD g 5 AND SERIAL PERIPHERAL INTERFACE SPI COMMUNICATIONS E x To Control 8 Main Switch Board Board g 8 E gS Positive 8 Input switch Input ULM Output amp 100A Breaker Rectifier T Current Terminal poe O Negative IE Reconnect 6 gt Switch 7 Terminal m e zm 5 ae Primary Current Feedback o Tuc Supply g Input
126. The control board performs the primary interfacing Optional Solenoid functions to establish and maintain output control of the V350 machine The control board sends and receives command signals from the mode panel the status panel the display panel and or the optional remote panel These communications are processed through a digital network called a Serial Peripheral Interface SPI This network digitally communicates to and from the control board the user s commands and various machine status messages The software that is contained within the control board processes and compares these commands with the voltage and cur rent feedback information it receives from the output current sensor and the output voltage sensing leads The appropriate pulse width modulation PWM signals See Pulse Width Modulation in this section are sent to the switch board IGBTs In this manner the digital ly controlled high speed welding waveform is created and regulated The control board also monitors the thermostats the main transformer primary currents and the input capacitor voltages NOTE Unshaded areas of Block Logic Diagram are the subject of discussion V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC THEORY OF OPERATION FIGURE E 5 OUTPUT RECTIFIER AND CHOKE 5 Cont
127. This will prevent further damage and allow proper failure analysis 4 Testthe machine to determine if the failure symp tom has been corrected by the replacement PC board NOTE Allow the machine to heat up so that all electrical components can reach their operating temperature 5 Remove the replacement PC board and substitute it with the original PC board to recreate the original problem a If the original problem does not reappear by substituting the original board then the PC board was not the problem Continue to look for bad connections in the control wiring harness junction blocks and termi nal strips b If the original problem is recreated by the substitution of the original board then the PC board was the problem Reinstall the replacement PC board and test the machine 6 Always indicate that this procedure was followed when warranty reports are to be submitted NOTE Following this procedure and writing on the warranty report INSTALLED AND SWITCHED PC BOARDS TO VERIFY PROBLEM will help avoid denial of legitimate PC board warranty claims V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR Observe Safety Guidelines detailed in the beginning of this manual PROBLEMS SYMPTOMS Major physical or electric
128. Y COVERED WITH ITEM 5 N m yee e L1 1 1 09 1 1 S Om A fog uum 5 mm Ja 8 IDENTIFICATION CODE css 024 BUY PER E3867 TEST PER E3856 RM THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A NCE Cho Sheet No X INFO DESIGN INFORMATION REFERENCE EQUIPMENT TYPE INVERTER WELDERS XM5626_ToRaWNBY ON ALL ANGLES IS TO cae XC UF SPI REMOTE P C BOARD ASSEMBLY MATERIAL TOLERANCE ENGINEER WITH PUBLISHED STAI APPROVED SCAEFULL DATE3 3 99 DmWNGN 11109 1 PART NO Return to Section TOC Return to Master TOC 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 not available from Lincoln Electric This information is pro vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs cou
129. Y PANEL inan 10 Volts MODE SELECT PANEL ELECTRICAL SYMBOLS PER E1537 553 8 N E S E i graphical representation of potentiometer connection 6 2 2000A NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual ENHANCED WIRING DIAGRAM ELECTRICAL DIAGRAMS CONTROL PC BOARD 1 BAV70LT D89 VN 5V IMBT4401 C94 C107 DATA 0 15 15 E 19 DATAO 1uF 1uF 100 35 DATAZ 4401 3 j 3 D X D D 2 Q ISE_GND 43 S C18 2 1 19 0K EX 2 4 5595 rea 689 151 16 16 C44 Return to Section TOC Return to Master TOC vIOVVL 4 E V MMBT4401 4700pF res H We verus eh LEZSZSINN BAVZOLT NOISE_GND 20 3n VCC EE 1 7 25 MA nag 90 Vb CADDR2 24 Lea VAAA X10 X30 7 C25 475 S nn Eom Ts C43 79 271 179 100pF 16890151 vs2 rd X23 533 gureur1 820pF D NDR DATA LEZSZSWIN ES b 170 ADORTI 5l 40 DATAS VADDRT2 5
130. age Compensation holds the output constant over 1096 input fluctuations State of the art inverter technology yields high power efficiency excellent welding performance lightweight and compact design Utilizes microprocessor control Electronic over current protection Input over voltage protection Manual reconnect switch located on the back panel with a clear reconnect door to allow easy determi nation of input configuration The reconnect door is fastened with turn connectors that allow quick and easy access to the reconnect area Circuit breaker protected auxiliary System Self Configure The power source ana lyzes the remote controls connected to the amphe nols and the desired welding mode to properly determine the location of trigger and output control Modular options for easy upgrades Back lit Status Lights for improved error communi cation Circuit Breaker Input Switch fan as needed Cooling fan runs only when necessary Thermostatically protected Designed to the IEC 974 1 Standard P23S protection rating with potted PC boards for enhanced ruggedness reliability Modular construction for easy servicing Aluminum Chassis and Wraparound 10 Ft Power Cord included V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to
131. al dam age is evident when the sheet metal cover is removed POSSIBLE AREAS OF MISADJ USTMENT S OUTPUT PROBLEMS 1 Contact your local authorized Lincoln Electric Field Service Facility for technical assis tance TROUBLESHOOTING GUIDE RECOMMENDED COURSE OF ACTION 1 Contact the Lincoln Electric Service Department 1 800 833 9353 WELD The machine is dead no out put no displays Make sure the input line breaker switch is in the ON position Check the main input line fuses If open replace Check the 2 amp circuit breaker CB2 Reset if tripped Make sure the reconnect switch and jumper lead is configured correctly for the applied input voltage If the machine is being operat ed with single phase input volt age make sure the red lead is not connected See the Installation Section 1 Perform the Auxiliary Transformer Test 2 Perform the Power Board Test 3 The control rectifier and or associated filter capacitor C5 may be faulty Check and replace as necessary 4 Perform The SPI Cable Resistance and Voltage Test 5 The Control Board may be faulty The main input fuses or breaker repeatedly fail 1 Make certain the fuses or breakers are sized properly Make sure the reconnect switch and jumper lead is configured correctly for the applied input voltage 3 The welding procedure may be drawing too much input current or the duty cycle m
132. ample B shows the IGBT in an active mode When the gate signal a positive DC voltage relative to the source is applied to the gate terminal of the IGBT it is capable of conducting current A voltage supply con nected to the drain terminal will allow the IGBT to con duct and supply current to the circuit components coupled to the source Current will flow through the conducting IGBT to downstream components as long as the positive gate signal is present This is similar to turning ON a light switch FIGURE E 6 IGBT GATE lt BODY REGION DRAIN DRIFT REGION POSITIVE VOLTAGE f APPLIED GATE SOURCE BODY REGION lt DRAIN DRIFT REGION lt surrentaver si Pp Pre aven C T EET ecne LAYER DRAIN DRAIN A PASSIVE B ACTIVE V350 PRO LINCOLN 5 Retum to Section Retum to Master TOC Retum to Section TOC 9 8 Return to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC E 8 E 8 THEORY OF OPERATION FIGURE E 9 TYPICAL IGBT OUTPUTS lusec 48 u 50 MINIMUM OUTPUT 24usec 2usec I sec 50 see MAXIMUM OUTPUT PULSE WIDTH MODULATION The term Pulse Width Modulation is used to describe how much time
133. ance or replacement Retum to Section TOC Retum to Master TOC MATERIALS NEEDED 5 16 Nut Driver 3 8 Nut Drive Flathead Screwdriver Phillips Head Screwdriver Retum to Master TOC B 8 This procedure takes approximately 45 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 52 52 TROUBLESHOOTING amp REPAIR CONTROL BOARD REMOVAL AND REPLACEMENT continued FIGURE F 16 CONTROL BOARD LOCATION Retum to Section TOC Retum to Master TOC Control Board Q P B 818 2 88 JE PROCEDURE 1 Remove input power to V350 PRO 5 Using a 5 16 nut driver remove the four screws from the top and bottom of the front of the 2 Using a 5 16 nut driver remove the case wrap machine See Figure F 17 around cover 6 Using a phillips head screwdriver remove the six 3 Perform the Input Filter Capacitor Discharge screws and their washers from around input Procedure detailed earlier in this section power switch See Figure F 17 4 Locate the control board behind the front panel of 7 Using a phillips head screwdriver remove the four the machine See Figure F 16 screws from around the two welder output termi nals on the front of the machine See Figure F 17 FIGURE F 17 CASE FRONT SCREW REMOVAL Retum to Master TOC 6 9 8 5 16 Screws
134. and 1 emen F 71 Snubber Board Removal and 1 75 Power Board Removal F 77 Input Rectifier Removal and Replacement 0000 F 81 Output Rectifier Modules Removal and F 85 Current Transducer Removal and 0 89 Retest after Repall 5 ame ope et c an ieee F 94 B 4 8 5 B 4 2 8 5 x V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR HOW TO USE TROUBLESHOOTING GUIDE CAUTION 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 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 This Troubleshooting Guide is provided to help you
135. ansformer is 8 8 Auxiliary E Transformer Secondary Lead Plugs P52 and P56 9 8 4 Retum to Master TOC TEST PROCEDURE Yiy 1 Remove input power to the V350 PRO 4 Locate the auxiliary transformer See Figure F 8 8 2 Using a 5 16 nut driver remove case g Wraparound cover 5 Locate the secondary leads and plugs P52 and P56 See Figure F 8 and 9 gje 3 Perform the E 5 Procedure detailed earlier in this section cic FIGURE F 9 Plug Lead Connections Viewed From Transformer Lead Side of Plug PLUG P52 PLUG P56 LEAD 541 LEAD 31 T LEAD 41A at 1 LEAD gle LEAD LEAD E LEAD 24 42 54 ec V350 PRO LINCOLN 35 35 TROUBLESHOOTING REPAIR AUXILIARY TRANSFORMER NO 1 TEST continued TABLE F 4 LEAD IDENTIFICATION NORMAL EXPECTED VOLTAGE 31 TO 532 115 VAC Retum to Section TOC Retum to Master TOC 42 TO 541 42 VAC 24 TO 541 24 VAC 54 TO 41A 28 VAC 7 Carefully apply the correct input voltage to the A WARNING V350 PRO and check for the correct sec WARNING ondary voltages per table F4 Make sure the High voltage is present at primary of Q 5 reconnect jumper lead and switch are config Auxiliary Transformer 5 I ured correctly for the input voltage being 4 applied Make sure circuit breaker 2 is 3 2 functioning properly 9 the correct input voltage is applied to the 88 NOTE T
136. apacitor feedback circuit The two capaci tors in a pair are always in series with each other When the reconnect switch is in the lower voltage position the capacitor pairs are in parallel Thus two series capacitors in parallel with two series capacitors When the reconnect switch is in the high voltage posi tion the two capacitor pairs are in series Thus four capacitors in series This is required to accommodate the higher input voltages When the input capacitors are fully charged they act as power supplies for the IGBT switching circuits When welding output is required the Insulated Gate Bipolar Transistors switch the DC power from the input capacitors on and off thus supplying a pulsed DC current to the main transformer primary windings See IGBT Operation Discussion and Diagrams this section Each IGBT switching circuit feeds current to a separate oppositely wound primary winding in the main transformer The reverse directions of current Remote Board Y Y Mode Status Display Panel Panel Panel Optional Solenoid flow through the main transformer primaries and the offset timing of the IGBT switching circuits induce an AC square wave output signal at the secondary of the main transformer The two current transformers CT located on the switch board monitor these primary currents If the primary currents become abnormally high the control board will shut off the IGBTs thus dis abling the machine output
137. ated leads See Figure F 3 Carefully remove the silicone sealant from leads 207 207A and 209 6 Using a phillips head screwdriver remove leads 207 207A and 209 from the input rectifier Use the analog ohmmeter to perform the tests detailed Table 2 See the Wiring Diagram Visually inspect the three MOV S for damage TP1 TP2 TP3 Replace if nec essary Figure F 3 Input Rectifier Small Lead H1 3 16 ALLEN BOLTS 207 207 209 Small Lead lt lt FRONT To Circuit Breaker HEAR V350 PRO LINCOLN 5 23 23 TROUBLESHOOTING amp REPAIR INPUT RECTIFIER TEST CONTINUED Table F 2 Input Rectifier Test Points TEST POINT TERMINALS ANALOG METER X10 RANGE PROBE PROBE Acceptable Meter Readings Greater than 1000 ohms Greater than 1000 ohms Greater than 1000 ohms Retum to Section TOC Retum to Master TOC Greater than 1000 ohms Greater than 1000 ohms Greater than 1000 ohms Less than 100 ohms Less than 100 ohms Less than 100 ohms A B C A B C A B C Retum to Master TOC B 8 4 Less than 100 ohms Less than 100 ohms Less than 100 ohms Less than 100 ohms Y Y Less than 100 ohms Less than 100 ohms 818 3 g Greater than 1000 ohms glg Greater than 1000 ohms 5 Greater than 1000 ohms 54 9 If the input rectifier does not meet the 11 the input rectifier is faulty see the acceptabl
138. ay be too high Reduce the welding current and or reduce the duty cycle 1 Check the reconnect switches and associated wiring See the wiring diagram 2 Perform the Input Rectifier 3 Perform the Main Switch Board Test 4 Perform the Output Diode Module Test 5 The Input Filter Capacitors may be faulty Check and if any are faulty replace all four CAUTION If for any reason you do not understand the test procedures or are unable to perform the test repairs safely con tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD V350 PRO LINCOLN 5 5 5 TROUBLESHOOTING amp REPAIR TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual PROBLEMS POSSIBLE AREAS OF RECOMMENDED SYMPTOMS MISADJ USTMENT S COURSE OF ACTION OUTPUT PROBLEMS The V350 Pro does not have weld 1 Make sure the reconnect switch 1 Check the reconnect switch and ing output The displays are lit is configured correctly for the associated leads for loose or input voltage applied faulty connections See the wiring diagram Retum to Section TOC Retum to Master TOC Make sure the Weld Terminals Selectis ON Ifthe problem is 2 Perform the Main Switch solved the remote control device or associated circuitry may be faulty See the wiring 3 Perform the diagram 4 Perform the Output Diode
139. before you proceed Call 1 800 833 9353 WELD Retum to Section TOC Retum to Master TOC DESCRIPTION This test will help determine if the power board is receiving the correct voltages and also if the power board is regulating and producing the correct DC voltages MATERIALS NEEDED Volt Ohmmeter 5 16 Nut Driver Wiring Diagram Retum to Master TOC 8 This procedure takes approximately 30 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 26 TROUBLESHOOTING amp REPAIR POWER BOARD TEST CONTINUED TEST PROCEDURE Remove input power to the V350 PRO machine Using a 5 16 nut driver remove the case wraparound cover Capacitor Discharge Perform the Procedure detailed earlier in this section Locate the power board and plugs 41 42 43 Do not remove plugs from the power board See Figure F 4 Carefully apply the correct input voltage to the V350 PRO Carefully test for the correct voltages at the power board See Table F 3 7 10 If the 40VDC is low or not present at plug J 41 check the rectifier bridge and C5 filter capacitor See Wiring Diagram Also per form the Auxiliary Transformer Test If any of the DC vo
140. bleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the power board for maintenance or replacement MATERIALS NEEDED Retum to Section TOC Retum to Master TOC 5 16 Nut Driver Flathead Screwdriver Retum to Master TOC 8 This procedure takes approximately 20 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 78 78 TROUBLESHOOTING REPAIR POWER BOARD REMOVAL AND REPLACEMENT continued FIGURE F 34 POWER BOARD LOCATION Retum to Section TOC Retum to Master TOC POWER BOARD Retum to Master TOC 8 4 gig LEFT SIDE 2 818 cic PROCEDURE 1 Remove input power to the V350 PRO 3 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 2 Using a 5 16 nut driver remove the case wrap around cover 4 Locate the power board See Figure F 34 gig 1 2 2 88 ili V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Y 4 2 5 4 Retum to Master F 79 F 79 TROUBLESHOOTING amp REPAIR POWER BOARD REMOVAL AND REPLACEMENT continued Locate the three plug connections 41 42 and 43 See figure F
141. cause injury or death Always use enough ventilation especially in confined areas to insure breathing air is safe Read and understand the manufacturer s instructions for this equipment and the consumables to be used including the material safety data sheet MSDS and follow your employer s safety practices MSDS forms are available from your welding distributor or from the manufacturer Mar 95 Retum to Master Retum to Master TOC Y 4 2 8 5 Retum to Master TOC WELDING SPARKS gt 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 Where compressed gases are to be used at the job site special precautions should be used to prevent hazardous situations Refer to Safety in Welding and Cutting ANSI Standard Z49 1 and the operating information for the equipment being used When not welding make certain no part of the electrode circuit is touching the work or ground Accidental contact can cause overheating and create a fire hazard Do not heat cut or weld tanks drums or containers until the proper steps have been taken to insure that such procedures wil
142. chines 1 c Do not add the fuel near an open flame weld ing arc or when the engine is running Stop the engine and allow it to cool before refuel ing to prevent spilled fuel from vaporizing on contact with hot engine parts and igniting Do not spill fuel when filling tank If fuel is spilled wipe it up and do not start engine until fumes have been eliminated EMF fields may interfere with some pacemakers and welders having a pacemaker should consult their physician before welding 1 d Keep all equipment safety guards covers and devices in posi tion and in good repair Keep hands hair clothing and tools away from V belts gears fans and all other moving parts m Exposure to EMF fields in welding may have other health when starting operating or repairing equipment effects which are now not known All welders should use the following procedures in order to 1 e some cases it may be necessary to remove safety n d minimize exposure to EMF fields from the welding circuit guards to perform required maintenance Remove guards only when necessary and replace them when the maintenance requiring their removal is complete Always use the greatest care when working near moving parts 2 d 1 Route the electrode and work cables together Secure them with tape when possible 2 d 2 Never coil the electrode lead around your body 1 f Do not put your hands near the engine fan
143. cover 4 Locate the snubber board See Figure F 32 FIGURE F 32 SNUBBER BOARD LOCATION Snubber Board LEFT SIDE 5 Remove small lead 81 from the board See 8 Replace the snubber board Figure F 33 9 Replace the bolts leads and washers previously 6 Remove the four bolts using a 7 16 socket Two removed Torque bolt to 30 40 Inch Lbs of these bolts have leads 30 and 10 connected to them Note the position of all leads and associ 10 Replace the case wraparound cover ated washers upon removal 7 Carefully remove the snubber board FIGURE F 33 SNUBBER BOARD LEADS CLOSE UP 6 Lead 30 U B1 Lead 10 V350 PRO LINCOLN 5 77 77 TROUBLESHOOTING amp REPAIR POWER BOARD REMOVAL AND REPLACEMENT WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical trou
144. crews at the top and bottom at the rear of the machine Replace the two phillips head mounting screws from around each wire feeder receptacle Replace the case wraparound cover LINCOLN 5 F 94 F 94 TROUBLESHOOTING AND REPAIR RETEST AFTER REPAIR Retum to Section TOC Retum to Master TOC Retest a machine If it is rejected under test for any reason that requires you to remove any part which could affect the machine s electrical characteristics If you repair or replace any electrical components IDLE AMPS Input Volts Maximum Idle Amps Idle Watts 230VAC Less Than 1 0 Amp 400 Watts Retum to Section TOC Retum to Master TOC 460VAC Less Than 0 5 Amp 400 Watts 575VAC Less Than 0 5 Amp 400 Watts Note The machine s output terminals should be energized but with no external load on the machine PERFORM THE VOLTAGE AND CURRENT CALIBRATION PROCEDURE This procedure is necessary to insure that the machine is capable of producing output and that the unit is calibrated correctly FAN AS NEEDED F A N The fan should turn on when the machine s output terminals are energized and stay on for approximately 5 minutes after the output terminals are de energized Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Master Retum to Master TOC Y 4 2 8 5 3 Retum to Master G 1 ELECTRICAL DIAGRAMS G 1 TABLE
145. d 4 Obtain a high resistance and high wattage resis tor 25 1000 ohms and 25 watts minimum This resistor is not with the machine NEVER USE A SHORTING STRAP FOR THIS PROCEDURE FIGURE D 1 LOCATION OF INPUT FILTER CAPACITOR TERMINALS EIGHT CAPACITOR TERMINALS INSULATED PLIERS Locate the eight capacitor terminals shown in fig ure D 1 Using electrically insulated gloves and pliers hold the body of the resistor with the pliers and connect the resistor leads across the two capacitor termi nals Hold the resistor in place for 10 seconds DO NOT TOUCH CAPACITOR TERMINALS WITH YOUR BARE HANDS Repeat the discharge procedure for the other three capacitors Check the voltage across the terminals of all capacitors with a DC voltmeter Polarity of the capacitor terminals is marked on the PC board above the terminals Voltage should be zero If any voltage remains repeat this capacitor dis charge procedure ROUTINE MAINTENANCE 1 Every 6 months or so the machine should be cleaned with a low pressure airstream Keeping the machine clean will result in cooler operation and higher reliability Be sure to clean these areas All printed circuit boards Power switch Main transformer Input rectifier Auxiliary Transformer Reconnect Switch Area Examine the shee
146. d 8 Underthe copper plate previously removed there is an allen bolt Remove it using 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 are ready for removal and or replacement 11 Before replacing the diode module apply a thin even coat of Penetrox A 13 heatsink compound to the bottom surface of the diode module Note Keep the compound away from the mounting holes 12 Press the module firmly against the sink while aligning the mounting holes Insert each outer screw through a spring washer and then a plain washer and into the holes Start threading all three screws into the heat sink 2 or 3 turns by hand 13 The screw threads may catch on the threads of the heat sink so be sure to get the face of the screw into contact with the surface of the module using just hand torque 14 Using a 7 16 socket tighten each mounting bolt to between 5 and 10 inch pounds 15 Tighten the center allen screw to between 12 and 18 inch pounds 16 Tighten each mounting bolt again 30 to 40 inch pounds this time 15 Replace leads 2X2 X4 20 40 to their original terminals in their proper positions Torque bolts to 30 40 Inch Pounds 16 Perform the Snubber Board Replacement Procedure detailed earlier in this section 17 Replace the case wraparound cover FIGURE F 39 OUTPUT RECTIFIER MODULE MOUNTING
147. d Locate the eight capacitor terminals and Troubleshooting Procedures at the beginning of remove the nuts using a 7 16 socket or nut this section Failure to do so can result in perma driver Note the position of the washers behind nent damage to equipment each nut for replacement 4 Locate the main switch board and all associat ed plug and lead connections See figure F 23 See Wiring Diagram Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC Retum to Master TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC F 63 9 10 11 12 TROUBLESHOOTING REPAIR MAIN SWITCH BOARD REMOVAL amp REPLACEMENT continued FIGURE F 24 3 16 ALLEN BOLT LOCATION Using a 3 16 allen wrench remove four allen bolts and washers as shown in Figure F 24 Atthis point the board is ready for removal Carefully remove the board from the 4 nylon mounting pins Note Depress the retaining pins on the sides of the nylon mounts to release the board See Figure F 25 Carefully maneuver the board out of the machine Apply a thin coat of Penetrox A 13 to the IGBT heatsinks on the back of the new switch boards mating surfaces Note Keep compound away from the mounting holes Mount the new board on the nylon mount ing pins 13 14 15 16 17
148. d Bank Calibrated Test Voltmeter Calibrated Test Ammeter Retum to Master TOC 8 This procedure takes approximately 20 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Master TOC Retum to Section TOC 6 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC F 48 F 48 TROUBLESHOOTING AND REPAIR VOLTAGE AND CURRENT CALIBRATION PROCEDURE continued CALIBRATION CHECK The calibration of the V350 PRO can be checked 1 using a resistive load bank with the V350 PRO mode 200 Mode 200 is a constant current test mode 2 1 Press and hold in the Mode Select button 3 2 Turn on the V350 PRO 4 3 Rotate the output knob while still holding the mode select button in until the displays read 5 mode 200 4 Release Mode Select button and the i machine will be in mode 200 5 With the machine in mode 200 apply a resistive 7 load to the welding output terminals approxi mately 087 ohms set the machine output to 300 amps and enable the Weld Terminals 8 Weld Terminals Select ON 6 Using the test meters note the output voltage and current 9 7 V350 PRO voltmeter must match test meter reading to within 1 volt 10 8 The V350 PRO ammeter must match the test 11 meter within 5 amps 9 If the voltmeter does not meet
149. display board to the sta tus board If a remote board is present the SPI cable plug connecting the remote board to the display board will have to be removed from the display board Locate and remove plug 3 from the control board See Figure F 15 Check the resistance and continuity of the SPI cable by testing with the ohmmeter from each pin on plug J3 to the corresponding pins on the plug removed from the display board See the machine schematic drawing The resistance reading pin to corresponding pin should be zero ohms or very low resis tance f the resistance reading is high or open check the plug connections to the SPI network PC boards If the connections are OK and the resistance is high or open the SPI cable may be faulty 9 10 11 12 13 14 15 16 17 18 19 Using the ohmmeter check the continuity of the remote board SPI cable from the plug pre viously connected to the display board to the plug on the remote board Reconnect the plugs into the display board and perform the Display Board Replacement With plug J3 still removed from the control board carefully apply the correct input power to V350 PRO Turn on the machine Carefully check for the presence of 15VDC from plug 3 pin 1 to plug 3 pin 10 at the control board receptacle See Figure F 15 Carefully check for the presence of 5VDC from plug 3 pin 2 to plug 3 pin 10 at the control board rec
150. dle Control Panel ennemi enn nennen nen B 3 Weld 5 E MH M 3 8 CC Stick Sofi nmani 3 Ge MED NE UE 3 4 ec m B 4 CV Fl xX oe ha M Do For ad cep cR B 4 HotStart amp Arc Control tm aed e e e ce Ec eee anys B 4 T Lower Case nes tue irte i Dai a lien ERR ad B 4 CURIOSE 4 8 UP 5 3 CC 5tick Modes E a cat e bed B 5 2 Types of Remote Output Control enter ntt eie e eek e Er eB d ae B 5 8 Types of Remote Weld Terminal B 5 Design Features and Advantages eene enne B 5 Auxillary 6 sees Recommended 55 5 nennen nennen nn eerste eae tae nenne nnn nennen B 6 8 i V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC OPERATING INSTRUCTIONS WARNING ELECTRIC SHOCK can kill Do not touch electrically live parts or electrode with sk
151. e front of the Invertec to coincide with wire feeder polarity used 5 remote control such as K857 is to be used with the Cobramatic the remote can be connected directly to the 6pin amphenol on the front of the Invertec or use a K864 adapter to connect the cobramatic and the remote to the 24 42VAC 14 pin wire feeder amphenol connector on the rear of the Invertec TIG Module K930 2 The TIG Module connects to the V350 Pro Factory or CE versions with a K936 1 9 14 pin control cable Connect the K936 1 to the 115VAC Wire Feeder Amphenol on the rear of the V350 Pro The TIG Module can also be used with the V350 Construction version A K936 4 control cable is required to supply 115VAC to the TIG Module from an external 115VAC supply General Instructions for Connection of Wire Feeders to V350 Pro Wire feeders other than LN 7 and LN 25 may be used provided that the auxiliary power supply capacity of the V350 Pro is not exceeded K867 universal adapter plug is required See connection diagram 519406 and 519386 at the back of this manual for more information Remote Control of Invertec Remote Control K857 Hand Amptrol K963 and Foot Amptrol K870 OPTIONS ACCESSORIES Construction Version K1728 2 All welding modes for this model run with local out put control and weld terminals ON e g Stick TIG LN25 off the arc K930 1 K428 K446 K449 TIG Module LN 25 Off the Arc Factory Version K1728 1 The fac
152. e readings outlined in Table F 2 the component may be faulty Replace Replacement procedure Note Before replacing the input rectifier 12 Replace the case wraparound cover check the input power switch and per form Main Switch Board Test Also check for leaky or faulty filter capacitors 10 If the input rectifier is good be sure to reconnect leads 207 207A and 209 to the correct terminals and torque to 31 inch lbs Apply silicone sealant Return to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 24 NOTES LINCOLN V350 PRO F 24 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 25 25 TROUBLESHOOTING REPAIR POWER BOARD TEST WARNING Retum to Section Retum to Master TOC 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance
153. ed to the end that is connected to 77 Note In TIG mode moving the lead 76 wiper to lead 77 would produce the current that has been set by the Invertec V350 Pro s front panel Output Control Remotes of this type offered by Lincoln Electric are the K857 K812 and K870 Voltage Control The supply should be an isolated supply Not ref erenced to earth ground any auxiliary power from the Invertec V350 Pro or the welding output The supply should be capable of supplying at least 20mA 0 volts supplied to 76 will set the Invertec V350 Pro to minimum output for the mode that has been selected while 10 volts supplied to 76 will set the Invertec V350 Pro to the maximum output for the mode Note In TIG mode 10 volts supplied to lead 76 would produce the current that has been Types of Remote WELD TERMINAL Control The Invertec V350 Pro s Weld Terminals can be controlled from each of the amphenol connectors The circuit has a nominal OCV of 15VDC and requires a dry contact closure less than 100 ohms to activate the output of the Invertec V350 Pro 14 Pin Amphenols the Weld Terminals are controlled from pins C lead 2 and pin D lead 4 Pin C is positive 6 Pin Amphenol the Weld Terminals are controlled from pin D lead 2 and pin E lead 4 In the 6 pin amphenol pin D is positive DESIGN FEATURES and ADVANTAGES Multiple process DC output range 5 425 amps Pre settable welding outputs Built in Line Volt
154. eptacle See Figure F 15 If either of these voltages are low or not pre sent the control board may be faulty Replace Remove the input power to the V350 PRO machine Replace plug J 3 into the control board Replace the control box top and any cable ties previously removed Replace the case wrap around cover FIGURE F 15 Plug J 3 1 O 2 Plug J3 O O O O Pin 10 V350 PRO LINCOLN 5 47 47 TROUBLESHOOTING AND REPAIR VOLTAGE AND CURRENT CALIBRATION PROCEDURE WARNING Retum to Section Retum to Master TOC 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This test will help determine if the machine is capable of producing welding output and to check and adjust if necessary the voltage and or current calibration Retum to Section TOC Retum to Master TOC MATERIALS NEEDED Resistive Loa
155. er TOC MATERIALS NEEDED Analog Volt Ohmmeter 5 16 in Wrench 7 16 in Wrench Retum to Master TOC 8 This procedure takes approximately 30 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 18 18 TROUBLESHOOTING REPAIR MAIN SWITCH BOARD TEST continued FIGURE F 2 MAIN SWITCH BOARD LEAD LOCATIONS Retum to Section TOC Retum to Master TOC 5 8 9 Retum to Master eig 510 918 H3 TEST PROCEDURE E E 8 1 input power to the V350 PRO 4 Using a 7 16 wrench locate label and remove ec leads 201 202 203 204 205 206 207 and 2 Using a 5 16 nut driver remove the case 208 from the switch board Note lead and wraparound washer placement for reassembly Clear 3 Perform the Input Filter Capacitor Discharge leads Procedure detailed earlier in this section 5 Using the Analog ohmmeter perform the resis tance tests detailed in Table Refer to fig ure F 2 for test point locations Note Test using an Analog ohmmeter on the 1 range Make sure the test probes are making electri cal contact with the conductor surfaces on the PC board Return to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 19 19 TROUBLESHOOTING amp REPAIR Q o8 MAIN SWITCH BOARD TEST continued p g 6 If any test fails replace the switch board See 8 Rec
156. erform this installation Connect the green lead of the power cord to ground per U S National Electrical Code INPUT AND GROUNDING CONNECTIONS 1 Only a qualified electrician should connect the Invertec V350 PRO Installation should be made in accordance with the U S National Electrical Code all local codes and the information detailed below 2 When received directly from the factory multiple voltage machines are internally connected for 460VAC If 460VAC is the desired input then the machine may be connected to the power system without any setup required inside the machine 3 Initial 200VAC 415VAC and 575VAC operation will require an Input voltage panel setup Open the access panel on the rear of the machine For 200 or 230 Position the large switch to 200 230 For higher voltages Position the large switch to 380 575 Move the A lead to the appropriate terminal POWER CORD CONNECTION A 10 ft 3 0m power cord is provided and wired into the machine Follow the power cord connection instructions Incorrect connection may result in equip ment damage BLACK GREEN 4 WHITE Single Phase Input 1 Connect green lead to ground per U S National Electrical Code 2 Connect black and white leads to power 3 Wrap red lead with tape to provide 600V insulation Three Phase Input 1 Connect green lead to ground per U S National Electric Code 2 Connect black red and white leads to power
157. ergize the weld output terminals Select Weld Terminals ON and carefully check for 15VAC at plug J 20 6 to 20 pin 2 leads 715 to 716 See Figure F 14 If the 15VAC is present and the fan is not running then the switch board may be faulty If the 15VDC is not present when the weld terminals are ener gized then the control board may be faulty Also check plugs 20 7 and all associated leads for loose or faulty connections See the Wiring Diagram WARNING HIGH VOLTAGE IS PRESENT AT THE SWITCH BOARD Remove the input power to the V350 PRO Note The fan motor may be accessed by the removal of the rear panel detailed in The urrent Transducer Removal and Replacement Procedure Replace the case wrap around cover FIGURE F 14 PLUG J 20 Lead 715 Lead 716 Plug J20 V350 PRO LINCOLN 5 44 NOTES LINCOLN V350 PRO F 44 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 45 45 TROUBLESHOOTING AND REPAIR SPI CABLE RESISTANCE AND VOLTAGE TEST A WARNING Retum to Section TOC Retum to Master TOC 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 For your
158. errors in our manuals We also value any suggestions as to additional tests or procedures that would make this SVM a better tool for you If you discover new or different Problems or Symptoms that are not covered in the three col umn troubleshooting chart please share this information with us Please include the machine s code number and how the problem was resolved Thank You Technical Services Group Lincoln Electric Co 22801 ST Clair Ave Cleveland Ohio 44117 1199 FAX 216 481 2309 SVM Number Page Number if necessary Your Company Your Name Please give detailed description below SD287 01 99 LINCOLN 5
159. ever is greater Prior to CV operation the meter displays four dash es indicating non presetable AMPS During welding this meter displays actual average amps After welding the meter holds the actual current value for 5 seconds Output adjustment while in the hold period results in the prior to operation char acteristics stated above The displays blink indicat ing that the machine is in the Hold period 2 VOLT METER Prior to CV operation current flow the meter dis plays desired preset voltage value 5V Prior to STICK or TIG operation the meter displays the Open Circuit Voltage of the Power Source or four dashes if the output has not been turned on During welding this meter displays actual average volts After welding the meter holds the actual voltage value for 5 seconds The displays blink indicating that the machine is in the Hold period Output adjustment while in the hold period results in the prior to operation characteristics stated above 3 OUTPUT CONTROL Output control is conducted via a single turn poten tiometer Adjustment is indicated by the meters as stated above When in TIG modes this control sets the maximum welding current Full depression of a foot or hand Amptrol results in the preset level of current 4 WELD TERMINALS REMOTE ON Two status lights indicate the location of trigger control as determined by the WELD TERMINALS push button
160. h is located above the output connectors The switch provides a work connection for wire feeder voltmeters Place the switch in the position of the electrode polarity indicated by the decal The switch does not change the welding polarity 12 6 PIN AMPENOL for remote control REMOTE CONTROL of the OUTPUT CONTROL and WELD TERMINALS The Invertec V350 Pro has auto sensing of remote output controls If after connecting or removing a remote the Invertec V350 Pro did not configured the way you would like the local or remote control set tings can be changed by pushing the OUTPUT CON TROL or WELD TERMINAL button A user cannot select between the 6 and 14 pin amphenols CV modes The remote will default to the 14 pin amphenol remote if a remote is connected to either of the 14 pin amphenols and the 6 pin amphenol Note Only one of the 14 pin amphenols can have a remote control connected at a time If no remote is connected to either of the 14 pin amphenols then the remote will default to the 6 pin amphenol if a remote is connected to it If a remote control is connected to any of the amphenols the WELD TERMINAL control will default to REMOTE If there are not any remote control devices attached the WELD TERMINAL control will default to ON V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum
161. he secondary voltages will vary if the primary and the secondary voltage s are not EIE input line voltage varies correct the auxiliary transformer may be 5 5 faulty cic 8 If the correct secondary voltages are present the auxiliary transformer is functioning proper 10 Remove the input power to the V350 PRO ly If any of the secondary voltages are miss 11 Install the case wraparound cover using a ing or low check to make certain the primary 5 16 nut driver is configured correctly for the input voltage applied See Wiring Diagram Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 36 5 LINCOLN V350 PRO F 36 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 37 37 TROUBLESHOOTING AND REPAIR CURRENT TRANSDUCER TEST WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the
162. in or wet clothing Insulate yourself from work and ground Always wear dry insulating gloves FUMES AND GASES can be dangerous 2 Keep your head out of fumes Use ventilation or exhaust to remove fumes from breathing zone A WELDING SPARKS can cause fire or explosion Keep flammable material away Do not weld on closed containers ARC RAYS can burn eyes and skin Wear eye ear and body protection NM See additional warning information at front of this operators manual GENERAL DESCRIPTION PRODUCT DESCRIPTION The Invertec V350 Pro offers multi mode CV and CC DC welding and is rated 350 amps 34 volts at a 60 duty cycle The V350 Pro is available in European and Rest of the World North America and Export versions Differences between these versions are input ratings and CE noise filtering In the different configurations the V350 Pro is available in either a construction ver sion no wire feeder connection and auxiliary power and a factory version includes wire feeder connection and related power DUTY CYCLE The V350 Pro is rated at 350 amps 60 duty cycle based on a 10 minute cycle It is also rated at 275 amps 10096 duty cycle m OPERATION idi OPERATIONAL FEATURES and CONTROLS UPPER CONTROL PANEL 1 AMPS Meter Prior to STICK or TIG operation current flow the meter displays preset current value either 2 amps or 3 e g 3 amps on 100 which
163. incoln Electric Service Department for electrical troubleshooting assistance before you proceed 1 800 833 9353 WELD Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 6 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR F 9 FAULT CODES DESCRIPTION CORRECTIVE SERVICE FACILITY CORRECTIVE DEFINITION ACTION ACTION 31 Main transformer Turn the machine off and Perform the Main Switch primary over current back on to reset the machine If condition persists contact an Perform the Power authorized Lincoln Field Service Facility There may be a problem with the primary current sensors CT located on the main switch board See the Wiring diagram The control board may be faulty 32 Capacitor bank A Make sure the reconnect There may bea problem lower is under voltage switches are configured for the input voltage being applied to the machine The machine is self clearing when condition ceases with the V F signals from the main switch board to the control board Perform the Main Switch Board Test Perform the Power The control board may be faulty NOTE If more than one fault message is being displayed perform all the checks for the faults before replacing the printed circuit board V350 PRO
164. kneeling or lying if there is a high risk of unavoidable or accidental contact with the workpiece or ground use the following equipment Semiautomatic DC Constant Voltage Wire Welder DC Manual Stick Welder AC Welder with Reduced Voltage Control In semiautomatic or automatic wire welding the electrode electrode reel welding head nozzle or semiautomatic welding gun are also electrically hot Always be sure the work cable makes a good electrical connection with the metal being welded The connection should be as close as possible to the area being welded Ground the work or metal to be welded to a good electrical earth ground Maintain the electrode holder work clamp welding cable and welding machine in good safe operating condition Replace damaged insulation Never dip the electrode in water for cooling Never simultaneously touch electrically hot parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders When working above floor level use a safety belt to protect yourself from a fall should you get a shock Also see Items 6 c and 8 LINCOLN 5 Also see item 1 b ARC RAYS 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 Headshield and filter lens should conform to ANSI
165. l not cause flammable or toxic vapors from substances inside They can cause an explosion even though they have been cleaned For information purchase Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous Substances AWS F4 1 from the American Welding Society see address above Vent hollow castings or containers before heating cutting or welding They may explode Sparks and spatter are thrown from the welding arc Wear oil free protective garments such as leather gloves heavy shirt cuffless trousers high shoes and a cap over your hair Wear ear plugs when welding out of position or in confined places Always wear safety glasses with side shields when in a welding area Connect the work cable to the work as close to the welding area as practical Work cables connected to the building framework or other locations away from the welding area increase the possibility of the welding current passing through lifting chains crane cables or other alternate circuits This can create fire hazards or overheat lifting chains or cables until they fail 6 h Also see item 1 c V350 PRO CYLINDER may explode DA NA if damaged 7 Use only compressed gas cylinders containing the correct shielding gas for the process used and properly operating regulators designed for the gas and pressure used All hoses fittings etc should be suitable for the a
166. ld result in damage to the LINCOLN ine 50 aal ELECTRICAL DIAGRAMS SCHEMATIC SNUBBER PRINTED CIRCUIT BOARD B40 Return to Section TOC Return to Master TOC Return to Section TOC Return to Master TOC C4 9047 1000V ojo Ele lt gle BIZ o o NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual Return to Section TOC Return to Master TOC ELECTRICAL DIAGRAMS G 22 PC BOARD ASSEMBLY SNUBBER Return to Section Return to Master TOC ITEM REQ PART NO DESCRIPTION 520500 4 CAPACITOR PPMF 0047 1000V BOX 114648 20 RESISTOR WW 5W 150 5 SQ R2 R4 J T14648 25 RESISTOR WW 5W 10 596 SQ PART NO DESCRIPTION M19532 A BOARD BLANK 713157 16 TERMINAL 79147 11 EYELET FEMALE 4 79147 15 EYELET MALE 4 NOTES N A FEMALE EYELET TO BE AGAINST THE COPPER SIDE AS SHOWN EYELET MUST SPIN AFTER CLINCHING E N B SOLDER EYELET SO THAT SOLDER COVERS ENTIRE EYELET AND ALL AROUND EYELET ON COPPER SIDE ONLY NO ICICLES OR SOLDER BLOBS PERMITTED Return to Section TOC Return to Master TOC HEIGHT SIDE EYELET DETAIL MANUFACTURED AS SNUBBER ENCAPSULATE WITH E1844 2 COATS TEST PER E3817 SN MAKE PER E1911 M1
167. lease the Mode Select button to save the calibration The left display will scroll the message IcAL SAVEd The machine will reset to normal operation NOTE If the Mode Select button is not pressed within 30 seconds after adjusting the Output Control knob the machine will leave the calibration mode and use the pre vious calibration settings LINCOLN 5 50 NOTES LINCOLN V350 PRO F 50 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 51 51 TROUBLESHOOTING REPAIR CONTROL BOARD REMOVAL AND REPLACEMENT WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the control board for mainten
168. locate and repair possible machine malfunctions Simply follow the three step procedure listed below Step 1 LOCATE PROBLEM SYMPTOM Look under the column labeled PROBLEM 5 This column describes possible symptoms that the machine may exhibit Find the listing that best describes the symptom that the machine is exhibiting Symptoms grouped into three main categories Output Problems Function Problems and LED Function Problems Step 2 PERFORM EXTERNAL TESTS The second column labeled POSSIBLE AREAS OF MISADJ USTMENT S lists the obvious external possibilities that may contribute to the machine symptom Perform these tests checks in the order listed In general these tests can be conducted without removing the case wrap around cover Step 3 PERFORM COMPONENT TESTS The last column labeled Recommended Course of Action lists the most likely components that may have failed in your machine It also specifies the appropriate test procedure to verify that the subject component is either good or bad If there are a number of possible components check the components in the order listed to eliminate one possibility at a time until you locate the cause of your problem All of the referenced test procedures referred to in the Troubleshooting Guide are described in detail at the end of this chapter Refer to the Troubleshooting and Repair Table of Contents to locate each specific Test Procedure All of
169. ltages are low or not present at plugs 42 or 43 the power board may be faulty Remove the input power to the V350 PRO Replace the case wraparound cover using a 5 16 nut driver Figure F 4 Power Board Plug Location 442 Ge 441 443 V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 27 CHECK POINT LOCATION POWER PC BOARD CONNECTOR PLUG J41 POWER PC BOARD CONNECTOR PLUG J42 POWER PC BOARD CONNECTOR PLUG J42 POWER PC BOARD CONNECTOR PLUG J42 POWER PC BOARD CONNECTOR PLUG J43 POWER PC BOARD CONNECTOR PLUG J43 POWER PC BOARD CONNECTOR PLUG J43 POWER PC BOARD CONNECTOR PLUG J43 F 27 TROUBLESHOOTING amp REPAIR POWER BOARD TEST CONTINUED Table F 3 Power Board Voltage Checks TEST DESCRIPTION CHECK 40VDC SUPPLY FROM RECT BRIDGE TO POWER BD CHECK 15VDC SUPPLY FROM POWER PC BOARD CHECK 5VDC SUPPLY FROM POWER PC BOARD CHECK 15VDC SUPPLY FROM POWER PC BOARD CHECK 5VDC SPI SUPPLY FROM POWER PC BOARD CHECK 5VDC 25232 SUPPLY FROM POWER PC BOARD CHECK 15VDC SPI SUPPLY FROM POWER BOARD CHECK 40VDC OPTIONAL SOLENOID SU
170. miting available to the input capacitors If the capacitors become under or over voltage the control board will de energize the input relays and the V350 output will be disabled Other possible faults may also cause the input relays to drop out NOTE Unshaded areas of Block Logic Diagram are the subject of discussion V350 PRO LINCOLN 5 Retum to Section 5 8 9 to Master Retum to Master Reconnect gt Switch Ar JE OOP JK L Negative Output Terminal E 3 E 3 THEORY OF OPERATION FIGURE E 3 SWITCH BOARD amp MAIN TRANSFORMER 6 Main Switch Board EET G 818 1 2 2 Positive Moped T om i Primary Current Feedback Auxiliary Transformer s Power Board 40VDC RS232 Supply 5VDC Input Relay Control Machine Control Supply Output Voltage Sense Teubis 1891 Control Board SPI Communications 415VDC 5VDC Supply Solenoid Supply 40VDC Remote Control amp Trigger SWITCH BOARD amp MAIN TRANSFORMER There is one switch board 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 circuit and a voltage fre quency c
171. mmer Crescent Wrench Pliers This procedure takes approximately 45 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 90 90 TROUBLESHOOTING amp REPAIR CURRENT TRANSDUCER REMOVAL AND REPLACEMENT continued around cover Q E PROCEDURE 1 Remove input power to V350 PRO 5 Using a phillips head screwdriver remove the two 2 mounting screws from each wire feeder recepta 818 2 Using a 5 16 nut driver remove case wrap cle See Figure F 40 EIE ji Using a 5 16 nut driver remove the four screws 6 3 Perform the Input Filter Capacitor Discharge from the top and bottom of the back of the Procedure detailed earlier in this section machine See Figure F 40 4 Remove the caps on the two wire feeder recepta cles FIGURE F 40 CASE BACK SCREW LOCATIONS T 8 2 REAR 81 i e e 6 9 E gg Wire Feeder Receptacle 618 Mounting Screws 5 x 7 eo 0 Plastic E 5 Nut n 5 16 Mounting Screws Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Re
172. nger to the technician or 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 If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This test will help determine if the input rectifier has shorted or open diodes Retum to Section TOC Retum to Master TOC MATERIALS NEEDED Analog Voltmeter Ohmmeter M ultimeter 5 16 Nut Driver Phillips Head Screwdriver Wiring Diagram Retum to Master TOC 8 This procedure takes approximately 25 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 6 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 22 1 3 To Auxiliary Transformer TROUBLESHOOTING amp REPAIR INPUT RECTIFIER TEST CONTINUED TEST PROCEDURE Remove input power to the V350 PRO machine Using a 5 16 nut driver remove the case wraparound cover Perform the Capacitor Discharge Procedure detailed earlier in this section Locate the input rectifier and associ
173. nstallation Technical 5 7 2 8 Input Grounding A 3 Power Cord Connection eric ace eer arce e neta ag e d e dnd rna Pda A 3 Single P hase InpUt uite cte ront toto lcu EH pt le a rr et d enda A 3 Three 3 Parallel Operation atia ce od p par o dE A 3 Quick Disconnect PIUGS i i ne ete enl osse A 3 Retum to Master TOC Y 4 2 8 5 3 Retum to Master V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC A 2 INSTALLATION A 2 TECHNICAL SPECIFICATIONS INVERTEC V350 PRO INPUT AC VOLTAGE amp OUTPUT Product Ordering Rated DC Output Weight Information Voltage Amps Volts Duty Cycle ing with Cord K1728 1 200 230 200 230 350A 34V 60 Factory Factory 275A 31V 100 82 5165 14 7 x12 5 x Invertec 37 4 kg 27 8 V350 1728 2 373 318 PRO Construction 60 50 Hz 5 425 Construction 706 mm 60 50 Hz 81 5105 208 230 350A 34V 60 36 9 kg Includes K1728 3 415 handles CE 460 480 275A 31V 100 575 Phase
174. nting nuts at the cor 21 Replace the six phillips head screws and their ners of the board washers from around the input power switch 18 Replace plugs 3 4 5 6 7 8 9 22 Using 5 16 nut driver replace the four screws 108 and 10A previously removed previously removed from the front of the machine Retum to Section TOC Retum to Master TOC 19 Using a 5 16 nut driver replace the metal plate 23 Replace the case wraparound cover on the top of the machine that holds the case front assembly to the center panel Replace all cable ties previously removed 20 Replace the four phillips head screws removed from the front of the machine located around the two welder output terminals Retum to Section TOC Retum to Master TOC Retum to Master TOC 9 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 57 57 TROUBLESHOOTING amp REPAIR DISPLAY BOARD REMOVAL AND REPLACEMENT WARNING 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual Retum to Section Retum to Master TOC If for any reason you do not understand the test procedures or are
175. o If any voltage remains repeat this capacitor dis charge procedure FIGURE LOCATION OF INPUT FILTER CAPACITOR TERMINALS EIGHT CAPACITOR POWER RESISTOR INSULATED PLIERS INSULATED Sh GLOVES V350 PRO LINCOLN 5 17 17 TROUBLESHOOTING REPAIR MAIN SWITCH BOARD TEST WARNING Retum to Section Retum to Master TOC 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 For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This test will help determine if the power section of the switch boards are functioning cor rectly This test will NOT indicate if the entire PC board is functional This resistance test is preferable to a voltage test with the machine energized because this board can be damaged easily In addition it is dangerous to work on this board with the machine energized Retum to Section TOC Retum to Mast
176. on 2 Using a 5 16 nut driver remove the case wraparound cover 4 Locate the status board behind the front panel of the machine See Figure F 30 FIGURE F 30 STATUS BOARD LOCATION Display Board Status Board Mode Board V350 PRO LINCOLN 5 73 F 73 TROUBLESHOOTING amp REPAIR STATUS BOARD REMOVAL AND REPLACEMENT continued Retum to Section TOC Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC 5 Using a 5 16 nut driver remove the four screws from the top and bottom of the front of the machine See Figure F 31 6 Using a phillips head screwdriver remove the six screws and their washers from around the input power switch See Figure F 31 7 Using a phillips head screwdriver remove the four screws from around the two welder output termi nals on the front of the machine See Figure F 31 8 The front of the machine may now gently be pulled forward to gain access to the status Board Note The front of the machine cannot be removed completely only pulled forward a few inches 9 The status board is now accessible to replace FIGURE F 31 FRONT SCREW REMOVAL 5 16 Screws AMPS CONTROL WELD TERMINALS oom UT SELECT SELECT
177. on TOC Retum to Master TOC MATERIALS NEEDED Analog Voltmeter Ohmmeter Wiring Diagram Retum to Master TOC 8 This procedure takes approximately 20 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Master TOC Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC F 30 F 30 TROUBLESHOOTING amp REPAIR OUTPUT DIODE MODULES TEST continued FIGURE F 5 Machine Output Terminals 5 Om 37 M POSITIVE OUTPUT OUTPUT TERMINAL TERMINAL TEST PROCEDURE 1 Remove input power to the V350 PRO 4 Using the analog ohmmeter test for more than 200 ohms resistance between positive and negative output terminals Positive test lead to the positive terminal Negative test 3 Remove any output cables and load from the lead to the negative terminal output terminals 2 Locate the output terminals on the front panel of the machine See Figure F 5 NOTE The polarity of the test leads is mo
178. onnect leads 201 202 203 204 205 206 p 8 207 and 208 to the switch board Ensure that the E leads are installed in their proper locations Pre 8 7 If the switch board resistance tests OK check Torque all leads nuts to 25 inch lbs before tight E connections on plugs J 20 J 21 J 22 and all asso ening them to 44 inch Ibs ciated wiring See wiring diagram 9 Replace the case wraparound cover using a 5 16 nut driver TABLE F 1 SWITCH BOARD RESISTANCE TEST APPLY POSITIVE TEST APPLY NEGATIVE TEST NORMAL PROBE TO TERMINAL PROBE TO TERMINAL RESISTANCE READING Greater than 1000 ohms Greater than 1000 ohms Greater than 1000 ohms Greater than 1000 ohms Less than 100 ohms Less than 100 ohms Less than 100 ohms Less than 100 ohms Retum to Section TOC Retum to Master TOC Retum to Master TOC 6 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 20 NOTES LINCOLN V350 PRO F 20 201 5 Q WINDY 201 WINDY 201 OF DOL OF 201 201 201 uon 2es LUMPY 201 UOS o WIMPY 21 21 TROUBLESHOOTING amp REPAIR INPUT RECTIFIER TEST WARNING Retum to Section Retum to Master TOC Service and repair should be performed by only Lincoln Electric factory trained personnel Unauthorized repairs performed on this equipment may result in da
179. ontinued FIGURE F 28 CASE FRONT VoLrs 5 16 Screws Remove plug 34 from the mode board Remove plug 31 originating from the status board located directly above the mode board Open the cover of the weld mode display on the front of the machine Using a 5 16 nut driver remove the three 5 16 screws as shown in Figure F 28 Carefully maneuver the the mode faceplate up and away from the machine The bottom of the plate will come out first Note The mode board will still be attached to its mounting plate V350 PRO 14 15 16 17 Place both knobs in the full counter clockwise position to gain access to the mounting screws Using a small flathead screwdriver loosen the screw in the Hot Start knob and the Arc Control knob The knobs should slide off of their shafts See Figure 29 Using a 1 4 wrench remove the nuts and their washers behind the Hot Start and Arc Control knobs Remove the mode board by gently prying from behind the board LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 69 18 19 20 21 22 F 69
180. orized repairs performed on this equipment may result in danger to the technician or 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 Retum to Section Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the status board for maintenance or replacement MATERIALS NEEDED Retum to Section TOC Retum to Master TOC 5 16 Nut Driver Flathead Screwdriver Phillips Head Screwdriver Retum to Master TOC 8 This procedure takes approximately 30 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Y 4 2 5 4 Retum to Master F 72 F 72 TROUBLESHOOTING amp REPAIR STATUS BOARD REMOVAL AND REPLACEMENT continued PROCEDURE 3 Perform Filter Capacitor 1 Remove input power to the V350 PRO Discharge Procedure detailed earlier in this secti
181. output terminal of polarity required by the electrode Connect the work lead to the other terminal Welding cable must be sized for current and duty cycle of the application 3 Attach the single lead from the LN 25 control box to the work using the spring clip on the end of the lead This is only a control lead it carries no welding current 4 Setthe voltmeter switch to the electrode polarity chosen 5 Set CONTROL SELECT to REMOTE 10 11 Set the MODE to the CV WIRE position Set WELD TERMINALS SELECT to the position Set the ARC CONTROL to the position and then adjust to suit Connect the K432 remote control cable to the LN 25 Connect the K876 adapter to the K432 and to the 24 42VAC 14 pin amphenol located at the rear of the V350 PRO Adjust the wire feed speed and voltage at the LN 25 NOTE See Figure 4 connection Using K867 adapter Figure C 3 LN 25 with K431 Remote Option to the V350 PRO ELECTRODE CABLE TO LN 25 TO WORK AMPHENOL 14 PIN 24 42VAC INVERTEC POWER SOURCE LN 25 WITH 6 PINAMPHENOL K431 OPTION E am i ADAPTER K432 REMOTE CONTROL CABLE NOTE Illustration shows electrode connected for positive polarity V350 PRO LINCOLN 5 ACCESSORIES CONNECTION OF THE K867 ADAPTER FOR USE WITH LN 25 WITH K431 OPTION V350 PRO 1 Insulate each unused lead individually Retum to Section TOC Ret
182. personnel Unauthorized repairs performed on this equipment may result in danger to the technician or 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 Retum to Section Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This procedure will drain off any charge stored in the four large capacitors that are part of the switch board assembly This procedure MUST be performed as a safety pre caution before conducting any test or repair procedure that requires you to touch inter nal components of the machine Retum to Section TOC Retum to Master TOC MATERIALS NEEDED 5 16 Nut Driver Insulated Pliers Insulated Gloves High Wattage Resistor 25 1000 ohms and 25 watts minimum DC Volt Meter Retum to Master TOC 8 This procedure takes approximately 20 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 16
183. pplication and maintained in good condition Always keep cylinders in an upright position securely chained to an undercarriage or fixed support Oylinders should be located Away from areas where they may be struck or subjected to physical damage safe distance from arc welding or cutting operations and any other source of heat sparks or flame Never allow the electrode electrode holder or any other electrically hot parts to touch a cylinder Keep your head and face away from the cylinder valve outlet when opening the cylinder valve Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use Read and follow the instructions on compressed gas cylinders associated equipment and CGA publication Precautions for Safe Handling of Compressed Gases in Oylinders available from the Compressed Gas Association 1235 Jefferson Davis Highway Arlington VA 22202 FOR ELECTRICALLY powered equipment 8 a Turn off input power using the disconnect switch at the fuse box before working on the equipment Install equipment in accordance with the U S National Electrical Code all local codes and the manufacturer s recommendations Ground the equipment in accordance with the U S National Electrical Code and the manufacturer s recommendations Mar 95 LINCOLN 5 Retum to Master Retum to Master TOC Y 4 2 8
184. r factory warranty For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION This test will help determine if the fan motor control board switch board or associated leads and connectors are functioning correctly Retum to Section TOC Retum to Master TOC MATERIALS NEEDED Voltmeter 5 16 Nut Driver This procedure takes approximately 40 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 42 42 TROUBLESHOOTING AND REPAIR Y CONTROL AND MOTOR TEST continued FE a TEST PROCEDURE 8 g 1 Remove the input power to the V350 PRO 3 Perform the Input Filter Capacitor Discharge 2 machine 2 Using the 5 16 nut driver remove the case 4 Locate plug J 22 the main switch board Do i wraparound cover not remove the plug from the board See Figure F 12 FIGURE F 12 PLUG J 22 LOCATION Retum to Section TOC Retum to Master TOC 5 Carefully apply the correct input power to the 6 Carefully check for 1
185. r other reproductive harm Ihe Above For Diesel Engines The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH KEEP CHILDREN AWAY PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strongly recommended that you purchase copy of Safety in Welding amp Cutting ANSI Standard Z49 1 from the American Welding Society Box 351040 Miami Florida 33135 or CSA Standard W117 2 1974 A Free copy of Arc Welding Safety booklet E205 is available from the Lincoln Electric Company 22801 St Clair Avenue Cleveland Ohio 44117 1199 BE SURE THAT ALL INSTALLATION OPERATION MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS FOR ENGINE powered equipment 1 a Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running 1 h To avoid scalding do not remove radiator pressure cap when the engine is hot 1 b Operate engines in open well ventilated areas or vent the engine exhaust fumes outdoors ELECTRIC AND MAGNETIC FIELDS 3 S may be dangerous 2 a Electric current flowing through any conductor causes localized Electric and Magnetic Fields EMF Welding current creates EMF fields around welding cables and welding ma
186. rages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the LINCOLN machine V350 PRO ELECTRICAL DIAGRAMS ce SCHEMATIC SWITCH PRINTED CIRCUIT BOARD J22 V F CONVERTER 1 2 gt 300VDC CAP 5 89VDC VREF A 2 40KHZ CONTROL 1VDC CHANGE ON CAP 8HZ TP TRI 1 POSITVE INPUT RECTIFIER R 143 X 4 02 23 2 C 32 0 6 CR 2 D 21 T 3 00 4 LAST NO USED Return to Section TOC Return to Master TOC A SUPPLY VOLTAGE NET POWER SUPPLY SOURCE POINT COMMON CONNECTION rh FRAME CONNECTION R11 150K EARTH GROUND CONNECTION SWITCH PCB SCHEMATIC SUBJECT RELAY SIGNAL FROM CONTROL LECNY17 3V CAPACITOR BOARD PRECHARGE gt _ gt 0013 CNY17 3V gt _ gt SOFT START Yi 2 SIGNAL FROM 6 CONTROL BOARD 4 e COM A
187. rminals 9 Set ARC control at 0 initially and adjust to NOTE Welding cable must be sized for current suit and duty cycle of application Figure C 7 V350 PRO LN 742 Connection Diagram Retum to Section TOC Retum to Master TOC TO LN 742 INPUT CABLE PLUG 14 PIN AMPHENOL 24 42 K591 CONTROL CABLE ELECTRODE CABLE TO WIRE FEED UNIT TO WORK 9 S HE g 8 E cic Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC C 9 C 9 ACCESSORIES CONNECTION OF THE LN 10 TO THE V350 PRO USING THE K1505 CONTROL CABLE NOTE AN LN 10 CAN ONLY BE USED WITH A FAC TORY OR 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 42VAC 14 pin amphenol con necter on the rear of the V350 PRO 3 Connectthe electrode cable to the output terminal of polarity required by the electrode Connect the work lead to the other terminal 4 Set the meter polarity switch on the front of the V350 PRO to coincide with wire feeder polarity used 5 Set CONTROL SELECT to 6 Set the MODE to the CV WIRE position 7 Set the WELD TERMINAL
188. rol Main Switch Board Board jueuno Input switch Input amp 100A Breaker Rectifier Primary Current Sensor Switch Current 115VAC Fan Supply Auxiliary Output Voltage Sense Fan Control V F Capacitor Feedback 2 189 Machine Control Supply 1 15VDC 6VDC Board SPI Supply 15VDC 5VDC Control Board RS232 Supply 5VDC Amphenol SPI Communications amp 15VDC 5VDC Supply Remote Mode Status Display Board Panel Panel Panel C Optional Solenoid Solenoid Supply 40VDC 6 Pin Remote Control amp Trigger Amphenol OUTPUT RECTIFIER AND CHOKE The output rectifier receives 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 NOTE Unshaded areas of Block Logic Diagram are the subject of discussion V350 PRO LINCOLN 5 Lj a Output Terminal Negative Output Terminal Retum to Section Retum to Section TOC Retum to Master TOC 5 8 9 Retum to Section Retum to Master TOC Y 4 2 5 4 Retum to Master E 6 E 6 THEORY OF OPERATION T
189. s manual LINCOLN amp ELECTRIC V350 PRO ELECTRICAL DIAGRAMS G 20 PC BOARD ASSEMBLY REMOTE S25001 7500SMT RESISTOR SMD 7500HMS 1 4W 1206 1 TR R135 REFERENCE 525000 22135 RESISTOR SMD METAL FILM 1 10W 221K 1 R138 PART NO DESCRIPTION DESIGNATOR 525000 10015 RESISTOR SMD METAL FILM 1 10W 1 00K 1 R139 G3709 A P C BOARD BLANK 525000 35705 RESISTOR SMD METAL FILM 10W 3570HMS R140 M19436 4 POTTING TRAY 525000 47525 RESISTOR SMD METAL 1 10 47 5 1 R141 8025 80 SELF TAPPING SCREW 25003 15R0SMT RESISTOR SMD 1W 15 00HMS 196 R142 R143 R144 L11166 1 FLEX CIRCUIT ASSEMBLY 525010 25 RESISTOR SMD MF 121K 1 4W 1 SURGE R15R16 E2527 66 79 2 19 oz ENCAPSULATION RESIN 525010 35 RESISTOR SMD MF 1W 20 0K 1 SURGE R17 R18 R76 R80 R119 E3539 57g 02 oz ELECTRICAL INSULATING COMPOUND R120 FOR ITEMS LISTED BELOW REFER TO ELECTRONIC COMPONENTS DATABASE FOR COMPONENT 525000 47515 RESISTOR SMD METAL FILM 1 10W 4 75K 1 R2 R3 R4 R5 R6 R7 R28 SPECIFICATIONS R29 R39 R40 R116 7 525020 35 38 CAPACITOR SMD CERAMIC 0 1MF 50V 10 X C2 C3 C4 C5 C6 C8 C9 525000 10025 RESISTOR SMD METAL FILM 1 10W 10 0K 1 R26 R27 R32 R33 R34 10 11 12 13 14 R35 R36 R37 R38 R145 15 16 17 18 19 R41 C20 C21 C22 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C65 C66 525020 125 CAPACITOR SMD CERAMIC 100pF 100V 5 C 23 24 25 2
190. sistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the mode board for maintenance or replacement Retum to Section TOC Retum to Master TOC MATERIALS NEEDED 5 16 Nut Driver Small Flathead Screwdriver Phillips Head Screwdriver 1 4 Wrench Retum to Master TOC 8 This procedure takes approximately 30 minutes to perform Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 66 66 TROUBLESHOOTING REPAIR MODE BOARD REMOVAL AND REPLACEMENT continued FIGURE F 26 MODE BOARD LOCATION Retum to Section TOC Retum to Master TOC Display Board Status Board Mode Board 9 8 4 Retum to Master TOC Vigo 818 2 88 55 cic PROCEDURE 3 Perform the Input Filter Capacitor 1 Remove input power to the V350 PRO Discharge Procedure detailed earlier in this section 2 Using a 5 16 nut driver remove the case wraparound cover 4 Locate the mode board behind the front panel of the machine See Figure F 26 Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 67 F 67 TROUBLESHOOTING amp REPAI
191. solved the remote control device or associated circuitry may be faulty TROUBLESHOOTING GUIDE RECOMMENDED COURSE OF ACTION 1 Perform the Current Transducer Test 2 If the output is normal when the Control Select is in the Local position but the output is very high in the Remote position the remote board may be faulty Perform 6 Cable Resistance and Voltage 3 The control board may be faulty The Weld Mode Select does not function properly 1 Refer to Operation Section of this manual for normal operation characteristics 1 Check for loose or faulty plug connections between the control board and the mode select panel See the wiring diagram 2 Perform the SPI Cable Resistance and Voltage Test 3 The Mode Select Panel board may be faulty 4 The control board may be faulty The Status Panel Control and Weld Terminals Select does not function properly 1 Refer to Operation Section of this manual for normal operation characteristics 1 Check for loose or faulty plug connections between the control board and the status board See the wiring diagram 2 The Status Board may be faulty 3 The control board may be faulty CAUTION If for any reason you do not understand the test procedures or are unable to perform test repairs safely con tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed
192. st important If the test leads polarity is not cor rect the test will have erroneous results V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Return to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR OUTPUT DIODE MODULES TEST continued Figure F 6 Terminal Close Up If 200 ohms is measured then the output diodes are not shorted NOTE There is a 200 ohm resistor across the welding output terminals If less than 200 ohms is measured one or more diodes or the snubber board may be faulty Perform the Capacitor Discharge Procedure detailed in the maintenance sec tion Locate the output diode modules and snub ber board See Figure F 7 V350 PRO Test all output diode modules individually NOTE This may require the disassembly of the leads and the snubber board from the diode modules Refer to the Output Diode Modules Removal and Replacement Procedure for detailed instructions LINCOLN 5 F 31 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC TROUBLESHOOTING amp REPAIR i OUTPUT DIODE MODULES TEST continued Figure F 7 Snubber and Output Diode Locations Output Diode Modules Snubber Board
193. t FILENAME G3631 2D0 GENERAL INFORMATION LAST NO USED ELECTRICAL SYMBOLS PER E1537 R CAPACITORS 022 50V UNLESS OTHERWISE SPECIFIED e NOTES RESISTORS Ohms 1 4W UNLESS OTHERWISE SPECIFIED LABELS SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING THE INTERCHANGEABLITY OF A COMPLETE BOARD THIS DIAGRAM MAY DIGRESS UNLESS OTHERWIRE SPECIFED SUPPLY VOLTAGE NET NUMBER C POWER SUPPLY SOURCE POINT NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE 5 COMMON CONNECTION 7 7 FRAME CONNECTION EARTH GROUND CONNECTION THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY CLEVELAND OHIO U S A n DIANUFACTURNG TOLERANCE PER E2058 Cha Sheet Na DESIGN INFORMATION JREFERENCE EQUIPMENT TYPE Digital Systems ON 2 PLACE DECIMALS IS 02 6 2 2000A ON 3 PLACE DECIMALS 15 002 Jorawwey Jerk JPUK i mun ON ALL ANGLES IS 5 OF DEGREE SUBJECT pore BRE Digital Power Supply woo SCAENONE DATEII 30 98 pmwNGN C 3631 Return to Section TOC Return to Master TOC NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual LINCOLN amp ELECTRIC V350 PRO Return to Section
194. t joint For vertical down open root pipe welding applications the recommended setting is between 8 and 10 During welding a boost circuit increases the avail able voltage to minimize pop outs The boost cir cuit is independent of the OCV and only operates when an arc is lit TIG GTAW The TIG mode features continuous con trol from 5 to 425 amps The TIG mode can be run in either the TIG touch start or high frequency assisted start mode The Hot Start control selects the starting mode desired A setting of less than 5 the TIG lift start mode is selected The OCV is controlled below 10v and the short circuit TIG touch current is main tained at 25 amps independent of the preset cur rent When the tungsten is lifted an arc is initiated and the output is regulated at the preset value Hot start settings between 0 and 5 regulate the arc ini tiation current A setting of 5 results in the most positive arc initiation A setting of 0 reduces hot start Hot Start settings between 5 and 10 select high frequency assisted starting TIG mode In this range the OCV of the machine is controlled between 50 and 70 volts If using the Lincoln K930 1 TIG Module set the Hot start to 10 for maximum OCV The Arc Control is not used in the TIG mode CV WIRE The CV WIRE mode features continuous control from 10 to 40 volts The mode was intended for most GMAW FCAW and MCAW applications Hot Start control is not used in
195. t metal case for dents or breakage Repair the case as required Keep the case in good con dition to insure that high voltage parts are protected and correct spacings are maintained All external sheet metal screws must be in place to insure case strength and elec trical ground continuity V350 PRO LINCOLN 5 MAINTENANCE 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 Reset occurs when the output load is removed THERMAL PROTECTION Thermostats protect the machine from excessive oper ating temperatures Excessive temperatures may be caused by a lack of cooling air or operating the machine beyond the duty cycle and output rating If excessive operating temperature should occur the thermostat will prevent output voltage or current The meter will remain energized during this time Retum to Section TOC Retum to Master TOC Thermostats are self resetting once the machine cools sufficiently If the thermostat shutdown was caused by excessive output or duty cycle and the fan is operating normally the Power Switch may be left on and the reset should occur within a 15 minute period Retum to Section TOC Retum to Master TOC Retum to Master TOC 9
196. t this manual Retum to Section TOC Retum to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD DESCRIPTION The following procedure will aid the technician in removing the input rectifier for maintenance or replacement MATERIALS NEEDED Retum to Section TOC Retum to Master TOC 3 16 Allen wrench 5 16 Nut Driver Flathead Screwdriver Penetrox 13 Heatsink Compound Silicon Sealant This procedure takes approximately 20 minutes to perform Retum to Master TOC 5 8 9 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 82 F 82 TROUBLESHOOTING amp REPAIR INPUT RECTIFIER REMOVAL AND REPLACEMENT continued PROCEDURE Remove input power to the V350 PRO Using a 5 16 nut driver remove the case wraparound cover Perform the Input Filter Capacitor Discharge Procedure detailed earlier this section Locate the input rectifier See figure F 36 Carefully remove the silicon sealant insulating the six input rectifier terminals Remove the six screws from the
197. te your factory warranty Individual Printed Circuit Board Components not available from Lincoln Electric This information is pro vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the LINCOLN ine 50 EIS ELECTRICAL DIAGRAMS Gi SCHEMATIC REMOTE PRINTED CIRCUIT BOARD 13680 SEE X411 CLSD SEE 1 0 BLOCK MISO CPLD OUT TRIGGER A D ENABLE Return to Section Return to Master TOC TRIGGER 6 PIN TRIG CLSD i RUM RUE 14 PIN TRIG CLSO 6 PIN RMT SEE X412 14 PIN RMT PIN RMT CNCTD D 14 PIN TRIG 150 6 PIN DETECT ON OFF L CONNECTED SEE X102 DATA_OU 11772610 Z ESTES 2 sse V BANKZ mamono pr BANG A D OUTPUT DATA BANKE 330742 LM ENABLE BANKS 20 0K 6 PIN 76 12 pay SEE 33313 DGZ01ADY 1 cock R120 8 a 200K ere iW 6 PIN 76 LINE SIGNAL PIN 76 1 0 POWER SUPPLIE I
198. ted to 100 amps until the load is removed UNDER OVER VOLTAGE PROTECTION Protective circuits are included on the switch and con trol boards to monitor the voltage across the input capacitors In the event that a capacitor pair voltage is too high or too low the machine output will be dis abled The protection circuits will prevent output if any of the following conditions exist 1 Voltage across a capacitor pair exceeds 467 volts High line surges or improper input voltage connections 2 Voltage across a capacitor pair is under 190 volts Due to improper input voltage connections 3 Internal component damage V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC E 7 E 7 THEORY OF OPERATION INSULATED GATE BIPOLAR TRANSISTOR OPERATION 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 zero volts relative to the source and therefore no current flow The drain ter minal of the IGBT may be connected to a voltage sup ply but since there is no conduction the circuit will not supply current to components connected to the source The circuit is turned OFF like a light switch Ex
199. terminals using a flathead screwdriver Carefully note the position of all leads and their positions upon removal Using a 3 16 in allen wrench remove the two mounting screws and washers from the input bridge Remove the input bridge FIGURE F 36 INPUT RECTIFIER LOCATION INPUT RECTIFIER V350 PRO LINCOLN 5 83 83 TROUBLESHOOTING amp REPAIR INPUT RECTIFIER REMOVAL AND REPLACEMENT continued g FE 8 5 9 Apply a thin coat of Penetrox A 13 heatsink com 11 Reconnect the previously removed leads to their 8 g pound to the point of contact between the input proper locations Torque to 31 inch pounds rectifier the mounting surface 818 12 Cover the input rectifier and its six terminals with EJE 10 Secure the new input bridge into its proper posi silicon sealant tion with the two 3 16 in allen mounting screws previously removed Torque to 44 inch pounds 13 Replace the case wraparound cover FIGURE F 37 INPUT RECTIFIER CLOSE UP Small Lead H1 To Auxiliary Transformer 3 16 ALLEN BOLTS Retum to Section TOC Retum to Master TOC 207 207 Retum to Master 5 8 9 209 Small Lead lt FRONT To Circuit Breaker REAR Retum to Section TOC Retum to Master TOC V350 PRO LINCOLN 5 84 NOTES LINCOLN V350 PRO F 84 201 5 Q
200. test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD g PE 818 1 2 Ar DESCRIPTION EJE This test will help determine if the current transducer and associated wiring are functioning 8 5 correctly 4 MATERIALS NEEDED Volt ohmmeter 5 16 Nut Driver Grid Bank External DC Ammeter This procedure takes approximately 45 minutes to perform Retum to Master TOC 8 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 38 F 38 TROUBLESHOOTING AND REPAIR CURRENT TRANSDUCER TEST continued FIGURE F 10 Metal Plate Removal amp Plug J 8 Location 5 16 Screws Metal Plate TEST PROCEDURE Remove input power to the V350 PRO Using the 5 16 nut driver remove the case wraparound cover Perform the Input Capacitor Discharge Using the 5 16 nut driver remove the control box top and cut any necessary cable ties See Figure F 10 Locate plug J 8 on the control board Do not remove the plug from the P C Board Apply the correct input power to the V350 PRO Check for the correct DC supply voltages to the current
201. the referred to test points components terminal strips etc be found on the referenced electrical wiring diagrams and schematics Refer to the Electrical Diagrams Section Table of Contents to locate the appropriate diagram CAUTION If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 800 833 9353 WELD V350 PRO LINCOLN 5 2 Retum to Section Retum to Section TOC 9 8 Return to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC F 3 F 3 TROUBLESHOOTING amp REPAIR PC BOARD TROUBLESHOOTING PROCEDURES WARNING ELECTRIC SHOCK can kill Have an electrician install and service this equipment Turn the machine OFF before working on equipment Do not touch electrically hot parts Sometimes machine failures appear to be due to PC board failures These problems can sometimes be traced to poor electrical connections To avoid prob lems when troubleshooting and replacing PC boards please use the following procedure l Determine to the best of your technical ability that the PC board is the most likely component caus ing the failure symptom 2 Check for loose connections at the PC board to assure that the PC board is properly connected
202. the location of output control as pre determined by the power sources auto configure system The LOCAL display will be lit when control is at the power source The REMOTE display will be lit when a remote pot control is detected These Output Control configurations can be overrid den switched with the CONTROL push button When changed the unit will power up in the configu ration it was in when it was last powered down Hidden Middle Control Panel Process Set Up Panel The middle control panel is removable to allow for upgrades see Field Installed Options Accessories Additionally this panel is hidden by an access door to reduce appeared complexity and provide protection to the controls 7 WELD MODE SELECT The Mode Control button selects the following weld ing modes desired CC STICK SOFT The Stick Soft process features continuous control ranging from 5 to 425 amps This mode was intended for most SMAW applications and Arc Gouging Arc Gouging Setting the output of the Stick Soft mode to 425 amps will enable the arc gouging mode The actual output current will depend on the size of carbon used The recommended maxi mum size carbon is 5 16 The Hot Start control regulates the starting current at arc initiation Hot Start can be adjusted from minimum 0 with no additional current added at arc start to maximum 10 with double the preset current or 425 amps max of machine added for the first second
203. tion Retum to Section TOC Retum to Master TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC INSTALLATION y e N BRASS PLUG COPPER TUBE 5 Tighten set screw to collapse copper tube Screw must apply pressure against welding cable The top of the set screw will be well below the surface of the brass plug after tightening 6 Slide rubber boot over brass plug The rubber boot must be positioned to completely cover all electrical surfaces after the plug is locked into the receptacle V350 PRO LINCOLN 5 4 Section 1 1 TABLE CONTENTS 8 eiue b eod Section B 3 Operating Instructions 2 Product Description coe ete Pa d na d i d i doe n Ra e B 2 8 e T 2 Operational Features and eee mener B 2 Upper Control torpet o rode a n dea eR B 2 AMPS 22 2 Volt M eter 2 Output C 1 rc 2 Weld Tetmillals 2 5 i r E B 3 8 Control Remote co B 3 3 Hidden Mid
204. tory model is the construction model with the addition of the Wire Feeder Remote Adapter n this form the V350 Pro provides the hardware to power and connect to 24 42 or 115 VAC wire feeders K857 Remote Output Control K814 Arc Start Switch K812 Hand Operated Amptrol K870 Foot Operated Amptrol K930 1 TIG Module K428 K446 K449 LN 25 K617 1 or 2 K618 1 or 2 LN 742 K440 1 K567 1 LN 7 GMA K1559 1 K1564 1 LN 10 K1499 1 K1521 1 DH 10 CE Version K1728 3 The CE version is the Factory version with the addition of power line filtering allowing the machine to comply with the European and Australian EMC emission requirements Field Installed Options Accessories Two versions of the V350 Pro are available from the factory for both the CE and ROW versions Options for K1728 1 Factory and K1728 3 CE V350 s TIG Gas Control Kit K1762 1 Advance Process Panel K1763 1 Options for all models of V350 PRO Undercarriage K1764 1 V350 PRO LINCOLN 5 Section D 1 Section D 1 TABLE OF CONTENTS 8 MAINTENANCE Maintenance Section D 2 Input Filter Capacitor Discharge 0 2 Routine Maintenance oseminte ai ver n n Ma e a Edw D 2 8 Periodic Malnteranca erepti c ke ay erri RE ER a am P Rd rnnt D 3 Thermal
205. tum to Master TOC Retum to Master TOC F 91 10 F 91 TROUBLESHOOTING amp REPAIR CURRENT TRANSDUCER REMOVAL AND REPLACEMENT continued Label and remove the four leads connected to the two wire feeder circuit breakers Pliers may be necessary Label and remove the two leads connecting to the CB2 circuit breaker Pliers may be necessary Label and remove the seven leads from the reconnect panel Pliers may be necessary Using a crescent wrench remove the large plastic nut from around the input power line located at bottom of the rear assembly See Figure F 41 11 12 13 Locate the steel nut located directly on the other side of the rear assembly behind the plastic nut that was previously removed See Figure F 41 Using a hammer and a flathead screwdriver firm ly tap the metal nut from the bottom of one of its ribs This tapping will loosen the nut Note Be sure to tap from the bottom so the nut loosens in a counter clockwise fashion if viewed from the front of the machine Using a 3 8 wrench label and remove leads 202 203 206 207A from the reconnect switches See Figure F 41 FIGURE F 41 LEAD LOCATIONS V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC
206. ty cycle of the application Connect the K857 remote control to the 6 pin amphenol on the V350 PRO Attach the single lead from the LN 25 control box to the work using the spring clip on the end of the lead This is only a control lead it carries no welding current 5 Set the voltmeter switch to the electrode polarity chosen 6 Set CONTROL SELECT to REMOTE 7 Set MODE to the CV WIRE position 8 Set WELD TERMINALS SELECT to the ON CAUTION position If you are using an LN 25 without an internal con tactor the electrode will be HOT when the V350 PRO is energized 9 Set the ARC CONTROL to the position and then adjust to suit Figure C 2 V350 PRO LN 25 ACROSS THE ARC CONNECTION DIAGRAM WITH K857 REMOTE CONTROL 6 pin Amphenol K857 Remote Control LN 25 Wire Feeder Work Clip Lead To Work Electrode Cable NOTE Illustration shows electrode connected for negative polarity V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 9 8 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC 4 ACCESSORIES CONNECTION OF THE LN 25 WITH K431 REMOTE OPTION TO THE V350 PRO NOTE AN LN 25 CAN ONLY BE USED WITH A FAC TORY OR CE VERSION OF THE V350 PRO 1 Remove input power to the V350 PRO 2 Connectthe electrode cable to the
207. ugh a combina tion line switch circuit breaker located on the front of the machine Two phases of the input voltage are applied to the auxiliary transformer The auxiliary trans former develops four different secondary voltages The 115VAC is used to power the fan motor and also is applied to the 14 pin amphenol type connector for wirefeeder operation The 24VAC and 42VAC volt ages are also applied to the 14 pin amphenol type con nector to power wirefeeders The 28VAC is rectified Optional Solenoid and the resultant 40VDC is applied to the power board The input voltage is rectified by the input rectifier and the resultant DC voltage is applied to the switch board through the reconnect switch assembly located at the rear of the machine The reconnect switch connect the two pairs of input capacitors either in a parallel lower voltage or series higher voltage configuration to accommodate the applied input voltage During the precharge time the DC input voltage is applied to the input capacitors through a current limit ing circuit The input capacitors are charged slowly and current limited voltage to frequency converter circuit located on the switch board monitors the capacitor voltages This signal is coupled to the con trol board When the input capacitors have charged to an acceptable level the control board energizes the input relays that are located on the switch board making all of the input power without current li
208. um to Master TOC 2 Remove 6 pin plug from K432 cable in order to connect K867 adapter 3 Label each lead A thru F as they are removed from the 6 pin plug 4 Splice leads and insulate Figure C 4 Connection of LN 25 to V350 PRO using K867 adapter Retum to Section TOC Retum to Master TOC ELECTRODE CABLE TO n 11 LN 25 WITH 14 PIN GND o K431 OPTION TO WORK 24 42VAC AMPHENOL SPARE o 75 0 S K867 ADAPTER 76 432 77 C CONTROL CABLE INVERTEC POWER SOURCE 4 Retum to Master TOC 5 8 9 Retum to Section Retum to Master TOC V350 PRO LINCOLN 5 Retum to Section Retum to Section TOC 5 8 9 Retum to Section Retum to Master TOC Retum to Master TOC Retum to Master TOC Retum to Master TOC C 6 C 6 ACCESSORIES CONNECTION OF THE LN 7 TO THE V350 PRO USING K480 CONTROL CABLE SEE FIGURE C 5 NOTE AN LN 7 CAN ONLY BE USED WITH A FAC TORY OR CE VERSION OF THE V350 PRO IF YOUR LN 7 COMES EQUIPPED WITH A K291 OR K404 INPUT CABLE REFER TO THE CONNECTION OF THE LN 7 USING K867 UNIVERSAL ADAPTER 1 Remove input power to the V350 PRO 2 Connectthe electrode cable from the K480 control cable to the terminal of the welder and to the LN 7 wire feeder Connect the work cable to the terminal of the welder NOTE Figure
209. urs porter des lunettes de s curit dans la zone de soudage Utiliser des lunettes avec crans lateraux dans les zones l on pique le laitier V350 PRO er l interrupteur la boite de fusibles Garder tous les couvercles et dispositifs de s ret leur place LINCOLN 5 MASTER TABLE OF CONTENTS FOR ALL SECTIONS RETURN TO MAIN INDEX Page Safety oxi aoe i iv Installation foa sen EE RR XR TR Section Operations eec ini Section B 550 2 raga eee Section Maintenance ooo dd Lo adie ie Section D Theory of Operation cose Der rca up Fe i e E VR Section E Troubleshooting and Section F How to Use Troubleshooting Guide eee et ree rn eene F 2 Troubleshooting t egeta ri i a e b DR fiu F 4 15 Replacement Procedures 44411 1101 51 Electrical Diagrams oot erc d i Section G Parts Manual P 369 Series V350 PRO LINCOLN 5 SectionA 1 Section A 1 TABLE OF CONTENTS INSTALLATION SECTION g I
210. vided for reference only Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the machine LINCOLN B V350 PRO ELECTRICAL DIAGRAMS bulis SCHEMATIC STATUS PRINTED CIRCUIT BOARD BEE6T 3684 Return to Section Return to Master TOC C16 4TpF L HC368A 100V Mi a GSP A DATA_OUT BANKI 2 COLD STUDS BANK3 WE nous HC368A ENABLE BANKS DATA IN CLOCK Rx STROBE 121 R14 100 R23 4 C21 C24 0271377 27 LOCAL 50V 50V CONTROL Vis 822 t1 DATA C10 L 75K BANK2 BANK3 C7 ENABLE BANKS 0 DATALIN yc CLOCK Rx MC14489 Return to Section Return to Master TOC

Lincoln Electric V350-PRO User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents