Lincoln Electric Invertec STT II Operator's Manual
  1. Manuals
  2. Brands
  3. Lincoln Electric Manuals
  4. Welding System
  5. INVERTEC STT II Series
  6. Operator's manual

Lincoln Electric Invertec STT II Operator's Manual

Lincoln electric invertec stt ii advanced process welder
Hide thumbs Also See for Invertec STT II:
Table of Contents

Advertisement

Quick Links

See also: Service Manual
INVERTEC
For use with machines having Code Numbers:
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.
• 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
RETURN TO MAIN INDEX
®
10381,
10382,
10383
OPERATOR'S MANUAL
• World's Leader in Welding and Cutting Products •
®
S T T
II
Copyright © 2002 Lincoln Global Inc.
IM582
September, 2002

Advertisement

Table of Contents
loading

Related Manuals for Lincoln Electric Invertec STT II

Summary of Contents for Lincoln Electric Invertec STT II

  • Page 1 RETURN TO MAIN INDEX IM582 ® ® INVERTEC S T T September, 2002 10381, For use with machines having Code Numbers: 10382, 10383 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 ...

  • Page 2: California Proposition 65 Warnings

    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.
  • Page 3 SAFETY ARC RAYS can burn. ELECTRIC SHOCK can 4.a. Use a shield with the proper filter and cover kill. plates to protect your eyes from sparks and 3.a. The electrode and work (or ground) circuits the rays of the arc when welding or observing are electrically “hot”...
  • Page 4 SAFETY WELDING SPARKS can CYLINDER may explode cause fire or explosion. if damaged. 6.a. Remove fire hazards from the welding area. 7.a. Use only compressed gas cylinders If this is not possible, cover them to prevent containing the correct shielding gas for the the welding sparks from starting a fire.

  • Page 5: Safety

    SAFETY...
  • Page 6 QUALITY product by Lincoln Electric. We want you Thank You to take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you! NOTICE NO LICENSE RIGHT. EXPRESSLY RESERVED FROM THE SALE OF THE...

  • Page 7: Table Of Contents

    TABLE OF CONTENTS Page Safety ........................i-iv Installation ......................Section A Technical Specifications ...................A-1 Location ........................A-2 Stacking ........................A-2 Tilting ........................A-2 Machine Grounding and High Frequency Interference Protection......A-2 Input Connections .....................A-2 Supply Connections ...................A-2 Input Cable Installation and Connection.............A-3 Ground Connection ....................A-3 Input Voltage Reconnect Procedure .................A-4 Output Connections ....................A-4 Wire Feeder Output Connections ...............A-4 Operation ......................Section B...

  • Page 8: Installation

    INSTALLATION TECHNICAL SPECIFICATIONS –Invertec STT II INPUT- THREE PHASE ONLY STANDARD VOLTAGE INPUT CURRENT AT RATED OUTPUT 208/230/460/3/60 HZ 32/30/16 200/220/380/415/440/3/50/60 HZ 33/30/18/17/16 RATED OUTPUT DUTY CYCLE AMPS VOLTS AT RATED AMPS 60% Duty Cycle 100% Duty Cycle OUTPUT CURRENT RANGE...

  • Page 9: Select Suitable Location

    See figure A.1 for location of the rating plate. TILTING The Invertec STT II should be connected only by a qualified electrician. Installation should be made in Place the machine on a secure, level surface other- accordance with local and national codes.

  • Page 10: Input Cable Installation And Connection

    GROUND CONNECTION 1. Remove the wraparound cover of the 1. Connect the ground terminal to earth Invertec STT II. ground per National Electrical Code. 2. Feed the input cable through the input cable 2. Replace the wraparound cover of the entry access hole at the right rear of the Invertec STT II.

  • Page 11: Input Voltage Reconnect Procedure

    Refer to the Accessories section of this manual for 3. Move lead “A” to 440-460 instructions on connecting a wire feeder to the Terminal. Invertec STT II. The LN-742 or STT-10 wire feeder is the recommend- ed feeder for use with the Invertec STT II. INVERTEC STT II...

  • Page 12: Operation

    • Keep flammable material away. • Do not weld on containers that have held combustibles. ARC RAYS can burn. • Wear eye, ear and body protection. Observe additional Safety Guidelines detailed in the beginning of this manual. INVERTEC STT II...

  • Page 13: General Description

    WELDING CAPABILITY RECOMMENDED EQUIPMENT The Invertec STT II is rated at 225 amps, 29 volts, at The LN-742 or STT-10 wire feeder is recommended 60% duty cycle on a ten minute basis. It is capable of for use with the STT II.

  • Page 14: Operational Features And Controls

    OPERATION OPERATIONAL FEATURES AND CONTROLS All operator controls are located on the case front of the Invertec STT II. Refer to Figure B.1 for locations. FIGURE B.1 CASE FRONT CONTROLS 1. POWER SWITCH: Turns output 3B. PEAK CURRENT DISPLAY METER: This power ON and OFF.

  • Page 15: Welding Operation

    12. 42V AUXILIARY POWER CIRCUIT BREAKER: The 42 VAC supply is protected from exces- sive current draws with a 6 amp circuit break- er. When the breaker “trips” its button will extend. Depressing this button will reset the breaker. INVERTEC STT II...

  • Page 16: Welding Parameters And Guidelines

    This is similar to LINES a low voltage setting on a standard CV machine The Invertec STT II is neither a constant current (CC) Adjust Bead Shape using Background Current nor a constant voltage (CV) power source. In general, wire diameter will be increased one size compared to conventional (CV) power sources.
  • Page 17 (0.3) (m/min) (0.3) (0.3) (0.3) Gas Flow cfh (L/min) 25 (12) Gas Flow cfh (L/min) 25 (12) Electrical Stickout “ 1/4 - 3/8 Electrical Stickout “ 1/4 - 3/8 (mm) (6.4 - 10) (mm) (6.4 - 10) INVERTEC STT II...

  • Page 18: Accessories

    PO R T IO N O F G 3 1 3 6 W IRIN G D IAGR A M R EFE R T O AC T UAL D IAGRAM PAST E D IN SID E Y O U R MA C H IN E INVERTEC STT II...

  • Page 19: Ln-742 Or Stt-10 Wire Feeder Connection Instructions

    The LN-742 or STT-10 is the recommended wire feed- and the ARC SENSE LEAD (lead with ring lug, step er for use with the Invertec STT II. Refer to the LN- #2) together to the gun block on the LN 742.
  • Page 20 ACCESSORIES CONNECTION DIAGRAM - INVERTEC STT II WARNING Turn off input power to the Welding Power source using the disconnnect switch at the fuse box before connecting the wire feeder. Only qualified persons should install, ELECTRIC use or service this machine.

  • Page 21: Maintenance

    4. Obtain a high resistance and high wattage resistor (25-1000 ohms and 25 watts minimum). This resistor is not sup- plied with machine. NEVER USE A SHORTING STRAP FOR THIS PROCE- DURE. FIGURE D.1 — LOCATION OF INPUT FILTER CAPACITOR TERMINALS. INVERTEC STT II...

  • Page 22: Preventive Maintenance

    If meter reading is less than 500,000 ohms, check for electrical com- • Main Transformer ponents that are not properly insulated from the case. Correct insulation if need- • Input Rectifier • Heat Sink Fins 7. Replace machine cover and screws. INVERTEC STT II...

  • Page 23: Troubleshooting

    HOW TO USE TROUBLESHOOTING GUIDE WARNING Service and Repair should only be performed by 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.
  • Page 24 CAUTION 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. INVERTEC STT II...
  • Page 25 CAUTION 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. INVERTEC STT II...
  • Page 26 2. Check for faulty Current Sense Board. CAUTION 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. INVERTEC STT II...
  • Page 27 CAUTION 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. INVERTEC STT II...
  • Page 28 CAUTION 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. INVERTEC STT II...

  • Page 29: Diagrams

    DIAGRAMS INVERTEC STT II...
  • Page 30 DIAGRAMS INVERTEC STT II...
  • Page 31 Year AMERICAN EXPRESS USE THIS FORM TO ORDER: Order from: BOOK DIVISION, The Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199 for fastest service, FAX this completed form to: 216-361-5901 BOOKS OR FREE INFORMATIVE CATALOGS Telephone: 216-383-2211 or,...
  • Page 32 Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. WARNING electrode with skin or wet clothing. Insulate yourself from work and ground. Spanish No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el AVISO DE bajo carga con la piel o ropa moja-...
  • Page 33 Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or Use ventilation or exhaust to guards off. WARNING remove fumes from breathing zone. Spanish Los humos fuera de la zona de res- Desconectar el cable de ali- No operar con panel abierto o AVISO DE...

  • Page 34: Limited Warranty

    30 Days Equipment manufactured for the Lincoln Electric Company is subject to • All consumable items that may be used with the environ- the warranty period of the original manufacturer. mental systems described above. This includes hoses, filters, belts and hose adapters.

Table of Contents