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Lincoln Electric INVERTEC IM904 manual

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Table of contents for the manual

  • Page 1

    INVERTEC ® S T T ® II (CE) OPERA T OR’S MANUAL IM904 July, 2006 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- [...]

  • Page 2

    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.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors. ________________________________________________[...]

  • Page 3

    ii SAFETY ii ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable flame-resistant material to protect your skin[...]

  • Page 4

    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 Electrical Code, all local codes and the manufacturer’s recommendations. 8.c. Ground the equipment in accordance with the U.S. National Electrical C[...]

  • Page 5

    iv SAFETY iv 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: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a. Les circuits ?[...]

  • Page 6

    v v Thank You for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you! Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it handy for quick reference. Pay[...]

  • Page 7

    vi vi T ABLE OF CONTENTS Page Safety .....................................................................................................................i-iv Installation ......................................................................................................Section A Technical Specifications .........................................[...]

  • Page 8

    INVERTEC STT II (CE) A-1 INST ALLA TION A-1 STANDARD VOLTAGE INPUT CURRENT AT RATED OUTPUT 200/220/380/415/440/3/50/60 HZ 33/30/18/17/16 TECHNICAL SPECIFICA TIONS –INVERTEC STT II (CE) (For Code 1 1366) INPUT - THREE PHASE ONL Y RA TED OUTPUT RECOMMENDED INPUT WIRE AND FUSE SIZES I NPUT VOLTAGE FUSE(SUPER LAG) INPUT AMPERE TYPE 75°C TYPE 75°C A[...]

  • Page 9

    A-2 INST ALLA TION A-2 INVERTEC STT II (CE) STANDARD VOLTAGE INPUT CURRENT AT RATED OUTPUT 200/208/380/400/415/3/50/60 HZ 36/34/20/19/18 TECHNICAL SPECIFICA TIONS –INVERTEC STT II (CE) (For Code 1 1367) INPUT - THREE PHASE ONL Y RA TED OUTPUT RECOMMENDED INPUT WIRE AND FUSE SIZES I NPUT VOLTAGE FUSE(SUPER LAG) INPUT AMPERE TYPE 75°C TYPE 75°C A[...]

  • Page 10

    A-3 INST ALLA TION A-3 INVERTEC STT II (CE) ELECTRIC SHOCK can kill. • Only qualified personnel should perform this installation. • Turn the input power OFF at the disconnect switch or fuse box before installing this equipment. • Turn the power switch on the Invertec STT “OFF” before connecting or discon- necting input power lines, output[...]

  • Page 11

    A-4 INST ALLA TION A-4 INVERTEC STT II (CE) INPUT CABLE INST ALLA TION AND CON- NECTION A cable strain relief is provided at the supply line entry and is designed to accommodate cable diameters of .310 - 1.070 in. (7.9 - 27.2 mm). On European models the strain relief is designed to accommodate cable diameters of .709 - 1.000 in. (18.0 - 25.4 mm). R[...]

  • Page 12

    A-5 INST ALLA TION A-5 INVERTEC STT II (CE) FIGURE A.2 RECONNECT P ANEL I NPUT VOL T AGE RECONNECT PROCEDURE As shipped from the factory, multiple voltage machines are internally configured for the highest input voltage (440-460 VAC), for Code 11366 and (380-415 VAC), for Code 11367. 1 . For Connections to 440 or 460 VAC verify the internal configu[...]

  • Page 13

    B-1 OPERA TION B-1 INVERTEC STT II (CE) ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing. • Insulate yourself from work and ground. • Always wear dry insulating gloves. FUMES AND GASES can be dangerous. • Keep your head out of fumes. • Use ventilation or exhaust to remove fumes from br[...]

  • Page 14

    B-2 OPERA TION B-2 INVERTEC STT II (CE) GENERAL DESCRIPTION The INVERTEC STT II (CE) is a 225-ampere inverter based arc welding power source specifically designed for the STT welding process. It is neither a constant current (CC) nor a constant voltage (CV) machine. It is a power source that delivers current of a desired wave form and characteristi[...]

  • Page 15

    B-3 OPERA TION B-3 INVERTEC STT II (CE) 1. POWER SWITCH: Turns output power ON and OFF. This switch also controls auxiliary power available through the 14-pin Wire Feeder Receptacle. 2A. BACKGROUND CURRENT OUTPUT CON- TROL: The output current is switched to the Background level at the conclusion of the preceding Peak Current pulse. This knob allows[...]

  • Page 16

    B-4 OPERA TION B-4 INVERTEC STT II (CE) 6. WIRE SIZE SELECT SWITCH: This toggle switch selects between electrode diameters of .035 ” (1 mm) and smaller or .045 ” (1.2 mm) and larger. The .035 ” (1 mm) position provides improved perfor- mance of smaller diameter wires at higher wire feed speeds. 7. WIRE TYPE SELECT SWITCH: This toggle switch s[...]

  • Page 17

    B-5 OPERA TION B-5 INVERTEC STT II (CE) WELDING P ARAMETERS AND GUIDE- LINES The INVERTEC STT II (CE) is neither a constant cur- rent (CC) nor a constant voltage (CV) power source. In general, wire diameter will be increased one size compared to conventional (CV) power sources. The larger the wire diameter the higher the deposition rate (Up to 1/16[...]

  • Page 18

    B-6 OPERA TION B-6 INVERTEC STT II (CE) WELDING PROCEDURES FOR STT II - (Steel) Horizontal Fillet (See Table B.1 and B.2) Table B.1 100% CO 2 Gas Shield (Set for Steel Mode) Table B.2 75% CO 2 - 25% Ar Gas Shield (Set for Steel Mode) (Stainless Steel) Horizontal Fillet (See Table B.3 and B.4) Table B.3 90% He, 7.5% Ar, 2.5% CO 2 Gas Shield (Set for[...]

  • Page 19

    C-1 ACCESSORIES C-1 INVERTEC STT II (CE) STT control board to accept PEAK and BACK- GROUND inputs on this connector rather than from the front panel controls. If this short is removed, the front panel controls will be active. By adding a switch between pins “ J ” and “ B ” a “ LOCAL/REMOTE ” control switch can be created. (Switch open f[...]

  • Page 20

    C-2 ACCESSORIES C-2 INVERTEC STT II (CE) LN-742 or STT -10 WIRE FEEDER CONNECTION INSTRUCTIONS The LN-742 or STT-10 is the recommended wire feed- er for use with the INVERTEC STT II (CE). Refer to the LN-742 or STT-10 Operator Manual for Wire Feed Operation. Refer to Figure C.2 or C.3 and follow the instructions below to connect the LN-742 or STT-1[...]

  • Page 21

    C-3 ACCESSORIES C-3 INVERTEC STT II (CE) CONNECTION DIAGRAM - INVERTEC STT II 4-9-99 M17657-3 CABLES AND LEADS SHOULD ELECTRODE LEAD BE TAPED TOGETHER. WORK (SHOULD BE LOCATED AS CLOSE AS POSSIBLE FEEDER REMOTE REMOTE ELECTRODE LEAD TO THE WELDING ARC) WORK LEAD WIRE FEEDER WIRE FEEDER CONTACT ELECTRODE SENSE LEAD IS BOLTED TOGETHER WITH ELECTRODE [...]

  • Page 22

    D-1 MAINTENANCE D-1 INVERTEC STT II (CE) W ARNING Failure to follow this capacitor discharge procedure can result in electric shock. INPUT FIL TER CAP ACITOR DISCHARGE PROCEDURE 1 . Turn off input power or disconnect input power lines. 2 . Remove hex head screws from side and top of machine and remove wrap-around machine cover. 3. Be careful not to[...]

  • Page 23

    D-2 MAINTENANCE D-2 INVERTEC STT II (CE) PREVENTIVE MAINTENANCE 1. Perform the following preventive maintenance pro- cedures at least once every six months. It is good practice to keep a preventive maintenance record; a record tag attached to the machine works best. 2. Remove the machine wraparound cover and per- form the input filter capacitor dis[...]

  • Page 24

    E-1 TROUBLESHOOTING E-1 INVERTEC STT II (CE) If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION This Troubleshooting Guide is provided to help you locate and re[...]

  • Page 25

    E-2 TROUBLESHOOTING E-2 INVERTEC STT II (CE) If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION Observe Safety Guidelines detailed in the beginning of this manu[...]

  • Page 26

    E-3 TROUBLESHOOTING E-3 INVERTEC STT II (CE) If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION Observe Safety Guidelines detailed in the beginning of this manu[...]

  • Page 27

    E-4 TROUBLESHOOTING E-4 INVERTEC STT II (CE) If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION Observe Safety Guidelines detailed in the beginning of this manu[...]

  • Page 28

    E-5 TROUBLESHOOTING E-5 INVERTEC STT II (CE) If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION Observe Safety Guidelines detailed in the beginning of this manu[...]

  • Page 29

    E-6 TROUBLESHOOTING E-6 INVERTEC STT II (CE) If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION Observe Safety Guidelines detailed in the beginning of this manu[...]

  • Page 30

    F-1 DIAGRAMS F-1 INVERTEC STT II (CE) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment cod[...]

  • Page 31

    F-2 DIAGRAMS F-2 INVERTEC STT II (CE) NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment cod[...]

  • Page 32

    F-3 DIAGRAMS F-3 INVERTEC STT II (CE) 13.19 20.75 23.25 13.21 24.50 1-9-98B M18706 DIMENSION PRINT - STT II (CE)[...]

  • Page 33

    NOTES INVERTEC STT II (CE)[...]

  • Page 34

    NOTES INVERTEC STT II (CE)[...]

  • Page 35

    NOTES INVERTEC STT II (CE)[...]

  • Page 36

    W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF ACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL F ABRICANTE P ARA E[...]

  • Page 37

    W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE P ARA ESTE EQUIPAMENTO E AS P ARTES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR. ● Keep your head out of fumes. ● Use ventilation or exhaust to remove fumes f[...]

  • Page 38

    • 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 • World's Leader in Welding and Cutting Products •[...]