Table Of Contents - Lincoln Electric INVERTEC V350-PRO Service Manual

Table of Contents

Safety Precautions1
Safety2
Table Of Contents6
Installation8
Technical Specifications8
Select Suitable Location9
Input And Grounding Connections9
Power Cord Connection9
Connections Of Wire Feeders To V350-Pro9
Stacking9
Tilting9
Remote Control Of Invertec10
Undercarriage Mountings10
Ln-7/10/742 Connection Instructions10
Cobramatic Connection Instructions10
Parallel Operation11
Operation Section Table Of Contents13
General Description14
Operational Features And Controls14
Upper Control Panel14
Duty Cycle14
Thermal15
Control-Remote/ Local15
Weld Mode Select - Factory And Construction15
Cc-Stick Soft/Crisp15
Tig Solenoid Option16
Cv-Wire16
Cv-Innersheild16
Tig Gtaw16
7A. Advanced Process Panel17
Hot Start And Arc Control18
Example Of Saving Welding Modes To Memory18
Ln-10/Dh-10 Wire Feeder Compatibility Note18
Electrode Material18
Weld Mode Details19
Pulse Programs20
Pulse On Pulse20
Lower Case Panel21
Remote Control Of The Output Control And Weld Terminals21
Cv Modes21
Tig Mode21
Lower Case Front21
Cc-Stick Modes21
Types Of Remote Output Control21
Auxiliary Power22
Limitations22
Recommended Processes22
Special Welding Processes Available On This Machine23
Power Mode23
Recommended Welding Procedures For Power Mode23
Pulse Welding (Gmaw-P)24
Pulse-On-Pulse (Gmaw-P)25
Benefits Of Pulse On Pulse From Lincoln Electric25
Welding Procedures For Pulse-On-Pulse25
Accessories Section Table Of Contents27
Accessories28
Options/Accessories28
Factory Version And Advanced Process Version28
Quick Disconnect Plugs29
Connection Of Lincoln Electric Wire Feeders30
Connection Of The Ln-25 To The V350-Pro " Across The Arc" With Optional 6 Pin K441-1 Remote Control30
V 350-Pro/Ln-25 Across The Arc Connection Diagram30
Connection Of The Ln-25 To The V350-Pro " Across The Arc" With Optional 6 Pin K857 Remote Control31
V 350-Pro/Ln-25 Across The Arc Connection Diagram With K857 Remote Control31
Connection Of The Ln-25 With K431 Remote Option To The V350-Pro32
Ln-25 With K431 Remote Option To The V350-Pro32
Connection Of The K867 Adapter For Use With Ln-25 With K431 Option/V350-Pro33
Connection Of Ln-25 To V350-Pro Using K867 Adapter33
Connection Of Ln-7 To The V350-Pro Using K480 Control Cable34
V350-Pro/Ln-7 With K480 Control Cable Connection Diagram34
Connection Of The K867 Adapter For Use With The K291 Or K404 Input Cables And Ln-735
Connection Of Ln-7 To V350-Pro Using K867 Adapter.35
Connection Of The Ln-742 To The V350-Pro36
V350-Pro/Ln-742 Connection Diagram36
Connection Of The Ln-10 To The V350-Pro Using The K1505 Control Cable37
Ln-10 V350-Pro37
Maintenance Table Of Contents39
Capacitor Discharge Procedure40
Visual Inspection40
Routine Maintenance40
Periodic Maintenance40
Major Component Locations41
Theory Of Operation Section Table Of Cotents43
V-350-Pro Block Logic Diagram43
Input Line Voltage, Auxiliary Transformer And Precharge44
Input Voltage And Precharge44
Theory Of Operation44
Switch Board And Main Transformer45
Power Board, Control Board And Serial Peripheral Interface (Spi) Communications46
Output Rectifier And Choke47
Thermal Protection48
Protection Circuits48
Over Current Protection48
Under/Over Voltage Protection48
Insulated Gate Bipolar Transistor (Igbt) Operation49
Pulse Width Modulation50
Minimum And Maximum Output50
Troubleshooting And Repair Section Table Of Contents51
How To Use Troubleshooting Guide52
Troubleshooting And Repair52
Pc Board Troubleshooting Procedures53
Troubleshooting Guide54
Input Filter Capacitor Discharge Procedure65
Description65
Material Needed65
Discharge Procedure66
Location Of Input Filter Capacitor Terminals66
Main Switch Board Test67
Test Procedure68
Main Switch Board Lead Locations68
Switch Board Resistance Test69
Input Rectifier Test71
Input Rectifier72
Input Rectifier Test Points73
Power Board Test75
Power Board Plug Location76
Power Board Voltage Checks77
Output Diode Modules Test79
Machine Output Terminals80
Terminal Probes81
Snubber And Output Diode Locations82
Auxiliary Transformer Test83
Auxiliary Transformer84
Current Transducer Test87
Metal Plate Removal & Plug J8 Location88
Plug J8 Viewed From Lead Side Of Plug88
Fan Control And Motor Test91
Plug J22 Location92
Plug J2292
Fan Control Test Procedure93
Plug J2093
Spi Cable Resistance And Voltage Test95
Plug J396
Voltage And Current Calibration Procedure97
Calibration Check98
Voltage Calibration98
Current Calibration Procedure99
Control Board Removal And Replacement101
Control Board Location102
Case Front Screw Removal102
Control Board All Plug Locations103
Control Board Mounting Screw Location104
Display Board Removal And Replacement105
Display Board Location106
Case Front Screw Location107
Main Switch Board Removal And Replacement109
3/16" allen Bolt Location111
Nylon Mounting Pin111
Advanced Process Panel Removal And Replacement113
Mode Board Location114
Case Front116
Screw In Cap117
Remote Board Removal And Replacement119
Remote Board Location120
Front Screw Removal121
Remote Board (Plug Location)122
Snubber Board Removal And Replacement123
Snubber Board Location124
Snubber Board Leads (Close Up)124
Power Board Removal And Replacement125
Power Board Location126
Power Board Lead Location127
Input Rectifier Removal And Replacement129
Input Rectifier Location130
Input Rectifier (Close-Up)131
Output Rectifier Modules Removal And Replacement133
Output Rectifier Module Lead Locations134
Output Rectifier Module Mounting Bolt Locations135
Current Transducer Removal And Replacement137
Case Back Screw Locations138
Lead Locations139
Output Heatsink Mounting Screw Location140
Retest After Repair142
Electrical Diagrams Section Table Of Contents147
Wiring Diagram Invertec V350148
Schematic - Complete Machine149
Schematic - Digital Control Pc Board150
Schematic - Power Supply Printed Circuit Board154
Schematic - Switch Printed Circuit Board155
Pc Board Assembly-Switch156
Schematic - Display Printed Circuit Board157
Pc Board Assembly - Display158
Schematic - Led Select Printed Circuit Board159
Pc Board Assembly - Led Select160
Schematic - Led Potentiometer Printed Circuit Board161
Pc Board Assembly - Led Potentiometer162
Schematic - Spi Remote Printed Circuit Board163
Pc Board Assembly - Spi Remote164
Schematic - Snubber Printed Circuit Board165
Pc Board Assembly - Snubber166