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Operator's Manual
IDEALARC
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Date Purchased
Code:
(ex: 10859)
Serial:
(ex: U1060512345)
IM10119
| Issue D ate 12-Oct
© Lincoln Global, Inc. All Rights Reserved.
AC1200
®
For use with machines having Code Numbers:
11869
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Summary of Contents for Lincoln Electric 11869
- Page 1 Operator’s Manual IDEALARC AC1200 ® For use with machines having Code Numbers: 11869 Register your machine: www.lincolnelectric.com/register Authorized Service and Distributor Locator: www.lincolnelectric.com/locator Save for future reference Date Purchased Code: (ex: 10859) Serial: (ex: U1060512345) IM10119 | Issue D ate 12-Oct...
- Page 2 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 and CUTTING CYLINDER may explode SPARKS can if damaged. cause fire or explosion. 7.a. Use only compressed gas cylinders 6.a. Remove fire hazards from the welding area. containing the correct shielding gas for the If this is not possible, cover them to prevent process used and properly operating the welding sparks from starting a fire.
- Page 5 SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où lʼon pique le laitier. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté...
- Page 6 Electric for advice or information about their use of our products. We respond to our customers based on the best information in our posses- sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor- mation or advice.
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Page 7: Table Of Contents
TABLE OF CONTENTS Page Installation .......................Section A Technical Specifications ..................A-1 Location ........................A-2 Input Wiring......................A-2 Output Connections ....................A-2 1. Wire Feeder Connections ................A-2 Connection of AC-1200 (with NL Option) to LAF or LT34 ........A-3 Connection of AC-1200 to NA-4 with Switch for ʻCurrent Controlʼ......A-3 Connection of AC-1200 to NA-4 with rheostat for current control or LT-6. -
Page 8: Installation
INSTALLATION ® TECHNICAL SPECIFICATIONS - IDEALARC AC-1200 INPUT - SINGLE PHASE ONLY Input Current at 100% Rated Output Standard Voltage Single Phase Output Scott Connection 460/60 440/50/60 415/50/60 380/50/60 Power Factor @ Rated load With P.F. Capacitors 79%(60 Hz) 76%(50 Hz) RECOMMENDED INPUT WIRE GROUNDING CONDUCTOR AND FUSE SIZES Input Copper Wire Size - 75˚C in Conduit... -
Page 9: Location
INSTALLATION LOCATION The frame of the welder must be grounded, A stud marked with the symbol located on the welder case back Install the welder in a dry location where there is free hole in the back of the case is provided for this purpose. circulation of air in through the louvers in front and out See the National Electrical Code for details on proper through the louvers in the back of the case. - Page 10 INSTALLATION Connection of AC-1200 to NA-4 S-15667 with Switch for ‘Current Control’ 4-18-75 Connection of AC-1200 to NA-4 with rheostat for current control or LT-6. S-15602 6-22-84H IDEALARC AC-1200 ®...
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Page 11: Output Studs
INSTALLATION 2. Output Studs Connect the work cables to the “To Work” stud on the front of the AC-1200. Connect the electrode cables to the “Min”, “Med” or “Max” studs for the output desired. Actual current ranges for each stud are indicated on the nameplate above each stud. -
Page 12: Operation
OPERATION GRAPHIC SYMBOLS THAT APPEAR ON SAFETY PRECAUTIONS THIS MACHINE OR IN THIS MANUAL Read and understand this entire section before oper- Output Control Single Phase ating the machine. Remote Control Setting Three Phase WARNING ELECTRIC SHOCK Local Control Settin Rated No-Load Voltage can kill. -
Page 13: Accessories
ACCESSORIES OPTIONAL KIT: Remote control K775. IDEALARC AC-1200 ®... -
Page 14: Maintenance
MAINTENANCE SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill. • Have qualified personnel do the maintenance and troubleshooting work. • Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically live parts or electrode with skin or wet clothing. -
Page 15: 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 16 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Welder will not start. 1. Supply line fuse blown. 1. Replace fuse. 2. Open supply line lead. 2. Look for possible cause and repair.
- Page 17 TROUBLESHOOTING PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Welder welds at max. only no con- Diodes or SCRʼs on heat sink trol. assemblies shorted. Shorted or grounded current controll rheostat. Output By-Pass Capacitors open or disconnected. Free wheeling diode open or discon- nected.
- Page 18 DIAGRAMS IDEALARC AC-1200 ®...
- Page 19 DIAGRAMS AC-1200 SCOTT CONNECTION DIAGRAM IDEALARC AC-1200 ®...
- Page 20 DIAGRAMS AC-1200 SCOTT CONNECTION DIAGRAM TWO PARALLEL MACHINES SCOTT CONNECTED TO TWO OTHER PARALLEL MACHINES FOR DESIRED PHASE ANGLE, INTERCONNECT MACHINES (AS SHOWN BELOW). BOTH PHASE ANGLES MUST BE THE SAME. TO GROUND PER NATIONAL ELECTRIC CODE. WORK WORK N.B. N.B.
- Page 21 DIAGRAMS AC-1200 AND PARALLELED DC-1000’s IDEALARC AC-1200 ®...
- Page 22 DIAGRAMS AC-1200 AND DC-1500’s IDEALARC AC-1200 ®...
- Page 23 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 24 Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or WARNING Use ventilation or exhaust to guards off. 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 25 • 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...