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Lincoln Electric V155-S manual

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Table of contents for the manual

  • Page 1

    INVER TEC ® V155-S SVM183-A July , 2008 For use with machines having Code Numbers: 1 1326; 1 1327 SER VICE MANUAL Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC View Safety Info View Safety Info View Safety Info View Safety Info • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland[...]

  • Page 2

    SAFETY i i Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b.Operate engines in open, well-ventilated ar[...]

  • Page 3

    SAFETY ii ii Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FUMES AND GASES can 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 [...]

  • Page 4

    S S A A F F E E T T Y Y i i i i i i i i i i i i Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Jan ʻ07 FOR ELECTRICALL Y powered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.S. National Electrica[...]

  • Page 5

    SAFETY iv iv Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Mar ʻ93 PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv- antes: Sûre[...]

  • Page 6

    SAFETY v v Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Electromagnetic Compatibility (EMC) Conformance Products displaying the CE mark are in conformity with European Community Council Directive of 3 May 1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility (89/3[...]

  • Page 7

    SAFETY vi vi Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Electromagnetic Compatibility (EMC) The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking place. The surrounding area may extend beyond the boundaries of the premises. Methods[...]

  • Page 8

    I I - MASTER T ABLE OF CONTENTS FOR ALL SECTIONS - INVERTEC® V155-S RETURN TO MAIN INDEX Page Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-iv Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 9

    T ABLE OF CONTENTS - INST ALLA TION SECTION A-1 A-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1 T echnical Specifications [...]

  • Page 10

    INST ALLA TION A-2 A-2 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Input Circuit 120 V ac 230 V ac 120 V ac 230 V ac Maximum Open Circuit V oltage 75 V olts Max. Duty Cycle 100% 30% Output Current Range 5[...]

  • Page 11

    INST ALLA TION A-3 A-3 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Read entire installation section before starting installation. SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Only qualified personnel s[...]

  • Page 12

    INST ALLA TION A-4 A-4 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT POWER CONNECTION Check the input voltage, phase, and frequency sup- plied to this machine before turning it on. The allowable input[...]

  • Page 13

    INST ALLA TION A-5 A-5 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TIG WELDING This machine does not hav e a built in Gas Solenoid so a one piece gas valv e TIG T orch is required. A K960-2 T wist-Mate™[...]

  • Page 14

    INST ALLA TION A-6 A-6 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC REPLA CEMENT Q UICK DISCONNECT PLUG (FOR STICK ELECTR ODE CABLE) The INVER TEC® V155-S comes with a factory assem- bled stic k electrode[...]

  • Page 15

    T ABLE OF CONTENTS - OPERA TION SECTION B-1 B-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1 Safety Precautions . . . . . . [...]

  • Page 16

    THEOR Y OF OPERA TION B-2 B-2 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Read and understand this entire section before operating your machine. SAFETY INSTRUCTIONS ELECTRIC SHOCK can kill. • Do not tou[...]

  • Page 17

    THEOR Y OF OPERA TION B-3 B-3 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONTROLS AND OPERA TIONAL FEA TURES 1. Output Current Knob: Potentiometer used to set the output current used during welding, from[...]

  • Page 18

    THEOR Y OF OPERA TION B-4 B-4 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 5. Positive Quick Disconnect: Positive output con- nector for the welding circuit. 6. Negative Quick Disconnect: Negative output c[...]

  • Page 19

    T ABLE OF CONTENTS - ACCESSORIES SECTION C-1 C-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1 Factory Installed Options . . . [...]

  • Page 20

    ACCESSORIES C-2 C-2 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPTIONAL ACCESSORIES AND COMP A TIBLE EQUIPMENT Factory Installed Electrical Holder and Cable Assembly Work Cable and Clamp Strap Packet Ins[...]

  • Page 21

    T ABLE OF CONTENTS - MAINTENANCE SECTION D-1 D-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 Safety Precautions . . . . . . . [...]

  • Page 22

    MAINTENANCE D-2 D-2 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SAFETY PRECA UTIONS ELECTRIC SHOCK can kill. • Hav e an electrician install and ser- vice this equipment. • T ur n the input power off a[...]

  • Page 23

    MAINTENANCE D-3 D-3 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MAJOR COMPONENT LOCA TIONS 1. Front Panel 2. Right Case Side 3. Left Case Side 4. Rear Panel 5. Fan 6. Cable Clamp 7. Input Cable 8. ONOFFS[...]

  • Page 24

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES D-4 D-4 INVERTEC® V155-S[...]

  • Page 25

    T ABLE OF CONTENTS-THEOR Y OF OPERA TION SECTION E-1 E-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1 General Description . . . . . [...]

  • Page 26

    THEOR Y OF OPERA TION E-2 E-2 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC GENERAL DESCRIPTION The INVERTEC® V155-S is an industrial 155 amp arc welding power source which utilizes single phase input powe[...]

  • Page 27

    THEOR Y OF OPERA TION E-3 E-3 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT BOARD The Input Board includes the following circuits: - Automatic Reconnect Circuit : This circuit monitors the input volta[...]

  • Page 28

    THEOR Y OF OPERA TION E-4 E-4 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MAIN INVERTER BOARD The Inverter Board includes the following circuits: - Inverter Circuit : Through the use of Insulated Gate Bip[...]

  • Page 29

    THEOR Y OF OPERA TION E-5 E-5 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONTROL BOARD The Control Board receives status and analogue sig- nals from the inverter board, input board and various sensors an[...]

  • Page 30

    THEOR Y OF OPERA TION E-6 E-6 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INSULA TED GA TE BIPOLAR TRANSIST OR (IGBT) OPERA TION An IGBT is a type of transistor . IGBT s are semicon- ductors well suited f[...]

  • Page 31

    THEOR Y OF OPERA TION E-7 E-7 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC PULSE WIDTH MODULA TION The term PULSE WIDTH MODULA TION is used to describe how much time is devoted to conduction in the cycle. [...]

  • Page 32

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES E-8 E-8 INVERTEC® V155-S[...]

  • Page 33

    T ABLE OF CONTENTS - TROUBLESHOOTING & REP AIR F-1 F-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S T roubleshooting and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-1 How to Use T roubleshooting Guide [...]

  • Page 34

    TROUBLESHOOTING & REP AIR F-2 F-2 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the thre[...]

  • Page 35

    TROUBLESHOOTING & REP AIR F-3 F-3 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Sometimes machine failures appear to be due to PC board failures. These problems can sometimes be traced to poor electrica[...]

  • Page 36

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles[...]

  • Page 37

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles[...]

  • Page 38

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles[...]

  • Page 39

    CASE COVER REMOV AL PROCEDURE W ARNING 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 sa[...]

  • Page 40

    I N V E R T E C V 1 5 5 Five Screws I n v e t e r B o a r d Three Screws Ground FIGURE F .1 – CASE COVER SCREW LOCA TIONS CASE COVER REMOV AL PROCEDURE (CONTINUED) PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Using a phillips head screwdriver remove the five screws securing the case cover sides together . See Figure F .1. Note: The[...]

  • Page 41

    INPUT FIL TER CAP ACITOR DISCHARGE PROCEDURE 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 [...]

  • Page 42

    DC+ DC- I N P U T B O A R D CAP ACITOR TERMINALS (4 places) FIGURE F .2 – CAP ACITOR DISCHARGE LOCA TIONS FIGURE F .3 – GLOVE, PLIERS & REISISTOR INPUT FIL TER CAP ACITOR DISCHARGE PROCEDURE (CONTINUED) TROUBLESHOOTING & REP AIR F-10 F-10 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Secti[...]

  • Page 43

    TROUBLESHOOTING & REP AIR F-11 F-11 INVERTEC® V155-S Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT FIL TER CAP ACITOR DISCHARGE PROCEDURE (CONTINUED) FIGURE F .4 – CAP ACITOR DISCHARGE LOCA TIONS INVERTER BOARD [...]

  • Page 44

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES F-12 F-12 INVERTEC® V155-S[...]

  • Page 45

    INPUT BOARD RESIST ANCE TEST 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[...]

  • Page 46

    DC+ D C - INPUT BO ARD D 1 In p u t R e c ti fi e r R4 R2 ~ ~ + – FIGURE F .5 – INPUT BOARD TEST POINTS INPUT BOARD RESIST ANCE TEST (CONTINUED) PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Perform the Case Cover Removal Procedure. 3. Perform the Input Filter Capacitor Discharge Procedure. 4. Visually check for burned areas ont T[...]

  • Page 47

    INVERTER BOARD RESIST ANCE TEST 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 no[...]

  • Page 48

    I NVERTER BOARD IGBT C hannel A IGBT channel B Emitter Gate C ollector Channel A Collector Channel B Emitter Gate FIGURE F .6 – INVERTER BOARD TEST POINTS INVERTER BOARD RESIST ANCE TEST (CONTINUED) PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Perform the Case Cover Removal Procedure. 3. Perform the Input Filter Capacitor Discharge[...]

  • Page 49

    INVERTER BOARD D9 Collector Channel B D7 D3 Output T erminals Point 2 Point 1 (center leg) R24 = PTC (solder pad) Collector Channel A Red Black FIGURE F .7 – INVERTER BOARD TEST POINTS INVERTER BOARD RESIST ANCE TEST (CONTINUED) 7. Check the diodes D3 and D9 for “shorts” or “opens”. See Figure F .7. 8. Check diode D7, but remember , some [...]

  • Page 50

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES F-18 F-18 INVERTEC® V155-S[...]

  • Page 51

    INPUT BOARD VOL T AGE TEST 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 a[...]

  • Page 52

    DC+ DC- I NPUT BOARD AC2 AC1 JP1 PIN 2 PIN 1 PIN 3 PIN 4 PIN 8 PIN 12 PIN 14 FIGURE F .8 – INPUT BOARD TEST POINTS INPUT BOARD VOL T AGE TEST (CONTINUED) PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Perform the Case Cover Removal Procedure (left side only). 3. Connect the main 230V AC to the the machine and switch ON the input swit[...]

  • Page 53

    White from PWR 2 White from PWR4 Blue from PWR 1 Blue from PWR 3 3 1 2 6 4 5 FIGURE F .9 – MAIN SWITCH PLUG LOCA TION INPUT BOARD VOL T AGE TEST (CONTINUED) 1. Put the blue wire from PWR3 in position 2 of the main switch while the white wire from PWR4 in posi- tion 5. 2. Put the blue wire from PWR1 in position 1 of the main switch while the white[...]

  • Page 54

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES F-22 F-22 INVERTEC® V155-S[...]

  • Page 55

    INVERTER BOARD VOL T AGE TEST 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 note[...]

  • Page 56

    DC+ DC- INPUT BOARD AC2 AC1 JP1 PIN 2 PIN 1 15 1 3 1 1 9 7 5 3 16 1 4 12 10 8 6 4 FIGURE F .10 – PLUG JP1 TESTPOINTS INVERTER BOARD VOL T AGE TEST (CONTINUED) NOTE: DUE T O SAFETY REASONS AND THE PHYS- ICAL LOCA TION OF THE INVER TER, IT IS NOT EASY TO PERFORM THE VOL T AGE TEST A T THE INVER TER BOARD. CHECKS CAN BE DONE A T THE INPUT BOARD CON-[...]

  • Page 57

    INPUT BOARD REMOV AL AND REPLACEMENT PROCEDURE 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 observ[...]

  • Page 58

    DC+ DC- INPUT BOARD AC2 AC 1 MOUNTING SCREWS FIGURE F .1 1 – SCREW AND LEAD LOCA TION INPUT BOARD REMOV AL AND REPLACEMENT PROCEDURE PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Perform the Case Cover Removal Procedure (Left side only). 3. Perform the Input Filter Capacitor Discharge Procedure. 4. Label and disconnect the four lead[...]

  • Page 59

    INVERTER BOARD REMOV AL AND REPLACEMENT PROCEDURE 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 obs[...]

  • Page 60

    I N V E R T E C V 1 5 5 Five Screws I n v e t e r B o a r d Three Screws Ground FIGURE F .12 – DOOR REMOV AL INVERTER BOARD REMOV AL AND REPLACEMENT PROCEDURE (CONTINUED) PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Perform the Case Cover Removal Procedure. 3. Perform the Input Filter Capacitor Discharge Procedure. 4. Perform the I[...]

  • Page 61

    OUTPUT TERMINALS 10MM BOL TS DC- DC+ FIGURE F .13 – INVERTER BOARD REMOV AL INVERTER BOARD REMOV AL AND REPLACEMENT PROCEDURE (CONTINUED) 7. Using a 10mm nutdriver with extension, remove the two bolts mounting the inverter board to the positive (+) and negative (-) leads that connect to the output terminals on the front ot the macine. See Figure [...]

  • Page 62

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES F-30 F-30 INVERTEC® V155-S[...]

  • Page 63

    CONTROL BOARD REMOV AL AND REPLACEMENT PROCEDURE 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 obse[...]

  • Page 64

    CONTROL BOARD MOUNTING SCREWS RED CAP KNOB W ASHER NUT FIGURE F .14 CONTROL BOARD REMOV AL CONTROL BOARD REMOV AL AND REPLACEMENT PROCEDURE (CONTINUED) PROCEDURE 1. Disconnect power to the INVER TEC® V155-S. 2. Perform the Case Cover Removal Procedure (left side only). 3. Perform the Input Filter Capacitor Discharge Procedure. 4. Perform the Input[...]

  • Page 65

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-33 F-33 INVERTEC® V155-S RETEST AFTER REP AIR Should a machine under test be rejected for any reason requiring the removal of any mechanical part[...]

  • Page 66

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES F-34 F-34 INVERTEC® V155-S[...]

  • Page 67

    T ABLE OF CONTENTS - DIAGRAM SECTION G-1 G-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC® V155-S Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .G-1 Wiring Diagram (W07X071) . . . . . . . . .[...]

  • Page 68

    ELECTRICAL DIA GRAMS G-2 INVERTEC® V155-S WIRING DIA GRAM - CODES 11326 & 11327 G-2 NO TE: This diagram is f or reference only . It ma y not be accurate f or all machines cov ered by this man ual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of y our machine. Return to Section TOC Retur n to Section TOC[...]

  • Page 69

    Return to Section TOC Retur n to Section TOC Return to Section TOC Retur n to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIA GRAMS G-3 INVERTEC® V155-S SCHEMA TIC - COMPLETE MA CHINE - CODES 11326 & 11327 Power Up On – – with i de-energizedfor a 230V ac windings control output[...]

  • Page 70

    Return to Section TOC Retur n to Section TOC Return to Section TOC Retur n to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIA GRAMS G-4 INVERTEC® V155-S SCHEMA TIC - INPUT PC BO ARD RL_AUX RL_PRE RESET RL_PAR RL_AUX I RQ RL_PRE I NPUT_ERR RL_PAR RL_PAR RL_PAR R L_SER VI N2 RL_SER RL_SE[...]

  • Page 71

    NO TE: Lincoln Electric assumes no responsibility for liablilities resulting from board le vel troubleshooting. PC Board repairs will inv alidate your f actor y warranty . Individual Printed Circuit Board Components are not a vailable fr om Lincoln Electric. This inf or mation is pro- vided for ref erence only . Lincoln Electric discourages board l[...]

  • Page 72

    Return to Section TOC Retur n to Section TOC Return to Section TOC Retur n to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIA GRAMS G-6 INVERTEC® V155-S SCHEMA TIC - INVERTER PC BO ARD - SHEET #1 Gh Gh Vout Vout GND ERRORn GND DUTY V_FB M/S PRES I_FB COMP 15V T A PILOT GND 15V GND Pass[...]

  • Page 73

    ELECTRICAL DIA GRAMS G-7 INVERTEC® V155-S SCHEMA TIC - INVERTER PC BO ARD - SHEET #2 A Vref Vref 15V GND Vref PRES 15V 15V 15V 15V 15V 15V T A SLA VE REC DUTY PWM MASTER P ASSIVEn COMP PTC VINint ERRORn GND 15V PRES PILO T Title Size Document Number Rev t e e h S : . v e r t s a l e t a D of Appr . Dr . This sheet contains proprietary information [...]

  • Page 74

    NO TE: Lincoln Electric assumes no responsibility for liablilities resulting from board le vel troubleshooting. PC Board repairs will inv alidate your f actor y warranty . Individual Printed Circuit Board Components are not a vailable fr om Lincoln Electric. This inf or mation is pro- vided for ref erence only . Lincoln Electric discourages board l[...]

  • Page 75

    NO TE: Lincoln Electric assumes no responsibility for liablilities resulting from board le vel troubleshooting. PC Board repairs will inv alidate your f actor y warranty . Individual Printed Circuit Board Components are not a vailable fr om Lincoln Electric. This inf or mation is pro- vided for ref erence only . Lincoln Electric discourages board l[...]

  • Page 76

    ELECTRICAL DIA GRAMS G-10 INVERTEC® V155-S SCHEMA TIC - CONTROL PC BO ARD 1 1 A A I- Voutm OFF+ I+ AD1 RESET IRQ Voutm +15V DUTY PTCE THLED VENn Vout IMIS S/T PTCE PTCuM O SC GND GND GND ERRORn +5V IRQ AD2 ISET AD0 AD0 GND +5V DUTY ISET W ELDING Fan FAN_ONn ERRORn Arcset PTCuM OFF+ +5V RESET VRD +15V FAN_ONn AD1 AD2 Voutfi lt Voutfi lt W ELDING S/[...]

  • Page 77

    NO TE: Lincoln Electric assumes no responsibility for liablilities resulting from board le vel troubleshooting. PC Board repairs will inv alidate your f actor y warranty . Individual Printed Circuit Board Components are not a vailable fr om Lincoln Electric. This inf or mation is pro- vided for ref erence only . Lincoln Electric discourages board l[...]

  • Page 78

    NO TE: Lincoln Electric assumes no responsibility for liablilities resulting from board le vel troubleshooting. PC Board repairs will inv alidate your f actor y warranty . Individual Printed Circuit Board Components are not a vailable fr om Lincoln Electric. This inf or mation is pro- vided for ref erence only . Lincoln Electric discourages board l[...]