Lincoln Electric IM904 INVERTEC STT II User Manual
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vi
TABLE OF CONTENTS
Page
Safety
.....................................................................................................................i-iv
Installation ......................................................................................................Section A
Technical Specifications.....................................................................................A-1,A-2
Location ....................................................................................................................A-3
Stacking ....................................................................................................................A-3
Tilting
.....................................................................................................................A-3
Machine Grounding and High Frequency Interference Protection............................A-3
Input Connections .....................................................................................................A-3
Supply Connections ...........................................................................................A-3
Input Cable Installation and Connection.............................................................A-4
Ground Connection ............................................................................................A-4
Input Voltage Reconnect Procedure .........................................................................A-5
Output Connections ..................................................................................................A-5
Wire Feeder Output Connections .......................................................................A-5
Operation ........................................................................................................Section B
Safety Precautions....................................................................................................B-1
General Description ..................................................................................................B-2
Recommended Equipment .......................................................................................B-2
Operating Controls....................................................................................................B-2
Design Features and Advantages.............................................................................B-2
Welding Capability ....................................................................................................B-2
Limitations.................................................................................................................B-2
Operational Features and Controls...........................................................................B-3
Welding Operation ....................................................................................................B-4
Welding Parameters and Guidelines ........................................................................B-5
Welding Procedures for (Steel) Horizontal Fillet .......................................................B-5
Welding Procedures for (Stainless Steel) Horizontal Fillet .......................................B-6
Accessories ....................................................................................................Section C
Options/Accessories .................................................................................................C-1
LN-742 or STT-10 Wire Feeder Connection Instructions .........................................C-1
Maintenance....................................................................................................Section D
Safety Precautions .................................................................................................D-1
Input Filter Capacitor Discharge Procedure ...........................................................D-1
Preventive Maintenance.........................................................................................D-2
Troubleshooting .............................................................................................Section E
How To Use Troubleshooting Guide ......................................................................E-1
Troubleshooting Guide ..................................................................................E-2 - E-6
Diagrams .........................................................................................................Section F
Wiring Diagram............................................................................................F-1 thru F-3
Dimension Print.........................................................................................................F-4
Parts List ....................................................................................................P-540 Series