Description | Lincoln Electric SVM135-B manual

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F-71

TROUBLESHOOTING AND REPAIR

F-71

SWITCH BOARD AND FILTER CAPACITOR REMOVAL

AND REPLACEMENT

WARNING

Service and repair should only be performed by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in dan- ger to the technician or machine operator and will invalidate your factory warran- ty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.

If for any reason you do not understand the test procedures or are unable to per- form the test/repairs safely, contact the Lincoln Electric service department for technical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353(WELD).

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DESCRIPTION

This procedure will aid the technician in the removal and replacement of the switch board(s) and/or filter capacitor(s).

This procedure takes approximately 25 minutes to perform.

MATERIALS NEEDED

3/8 in. nutdriver 7/16 in. wrench 3/16 in. Allen wrench Slot head screwdriver

POWER WAVE 455/POWER FEED 10

Image 135

Lincoln Electric SVM135-B service manual Switch Board and Filter Capacitor Removal Replacement, Description

Contents

Safety Depends on You Power Wave 455/Power Feed California Proposition 65 Warnings Safety Electric Shock can kill Iii Welding Sparks can cause fire or explosion Sûreté Pour Soudage a L’Arc Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Return to Section TOC Input AT Rated Output Three Phase only Technical Specifications Power Wave Location and Mounting Safety Precautions Boom Mounting Control BOX Power Source Mounting Grounding Input Fuse and Supply Wire ConsiderationsInput Voltage Reconnect Procedure Electrical Connections Typical Bench Feeder Connection Cable ConnectionsControl Cable Connections Flexible Connection Possibilities Available Cable Assemblies Control Cable SpecificationsCable Connections Electrode and Work Leads Electrode Positive Applications Voltage Sensing AT the WORK- Piece Wire Feeder SetupWire Drive Gear Ratio High or LOW Speed Electrode and Work Leads Electrode Negative Applications Ratio Change Procedure Setting DIP Switches Control BOX DIP Switch Setup Switch Off LSB Figure A.4 Setting DIP Switches in the Wire Drive GUN and Cable Assemblies Gmaw Shielding GAS See Gun Adapters in Accessories section Optional Panels for Control BOX Standard Panel InstallationCONTROL/DISPLAY Panel CV/GOUGE Panel Operation Table of Contents Operation Section Recommended Equipment Safety InstructionsOperating Instructions System Description Limitations Duty Cycle and Welding Capabilities Cold FEED/GAS Purge Switch Power Feed ControlsSTEP/4-STEP Switch Operation Status Light 1 -STEP/ 4-STEP Switch Volts Blank Panel Trim Encoder Status Display Control PanelStatus Light Amps Encoder ARC Gouging Weld Mode DescriptionsBoard Level Adjustments Electrode Routing Wire Reel Loading READI-REELS, Spools Or Coils Wire Spindle Placement Innershield Coils Figure B.4 KG Coil Using K1504-1 Coil Reel Figure B.5 Procedure for Setting Angle of Feedplate Feeding Electrode and Brake AdjustmentDrive Roll KIT Installation KP1505 Drive Roll Pressure Setting Wire Feed Overload Protection Table of Contents Accessories Section Accessories General Table C.1 Power Feed 10 and Power Wave 455 Accessories Wire Feeder Options and Accessories 3ACCESSORIESC-3Power Wave Options Accessories K1548-1 Receptacle KIT Input and Output Control Box Cabinet ProcedureInput Cable Assemblies Cable Receptacles Receptacle Input Feed Head Enclosure Procedure Guns and GUN Adapters Reel Adapters Conduit Adapters Dual Procedure Switch Options GAS and Water KitsChassis Options K1555-1 Insulated Lift Bail Description and Installation of Optional Control BOX PanelsK1542-5 Dual Procedure Panel CC/STICK/GOUGE Mode Parameter Ranges Constant Voltage CV/MIG and CV/Flux Cored ProceduresK1542-7 MX Panel Large Panel Descriptions K1542-8 MSP Panel Large Panel Mode SelectionParameter Adjustment Parameter Selection Gmaw Pulse Procedures K1542-9 Dual PROCEDURE/MEMORY Panel Small Panel Dual Procedure SelectionMemory Selection K1542-12 MSP2 Panel K1542-11 MX2 Panel Control BOX -- PC Board Adjustments Control BOX Panels -- SET UP Controls Description Operation with Previous Software Version Control BOX -- Using Operating Limits Table of Contents Maintenance Section Maintenance Periodic Maintenance Routine Maintenance Theory of Operation Table of Contents Theory of Operation Section Based Welding System System Diagram aWire Drive Modular Inverter System Diagram B System Diagram C Input Voltage and Precharge Power Source General Description Operation Discussion and Diagrams in this section Switch Boards and Main Transformer Figure E.6 Control Board Control Board Choke Output Rectifier Thermal Protection Over Current UNDER/OVER VoltageProtective Circuits Insulated Gate Bipolar Transistor Igbt Operation PassiveActive Pulse Width Modulation Minimum OutputMaximum Output See System Diagram a and System Control BOXUser Interface Step Power Feed Feed HeadLead #67 Step Power Wave 455/POWER Feed Table of Contents Troubleshooting and Repair Section Troubleshooting and Repair HOW to USE Troubleshooting Guide PC Board Troubleshooting Procedures Troubleshooting and Repair Perform the Input Rectifier Troubleshooting GuidePerform the Power Board Test Transformer Test See LED Code Table Perform the Input Rectifier Perform the Main Contactor Ducer Test Perform the Auxiliary TransforMer T2 Test Perform the Output Rectifier Board Test Perform the Voltage Sense PC Wire Drive/Control Box Troubleshooting Function Problems Green, consult Status LED Error Code Table Power Wave 455 Status LED Chart Condition Possible FaultsStatus LED Error Code Table Troubleshooting Guide Thermal LED is lit Status LED Error Code Table Digital Communication Error Code LED Errors SequenceWelding File Errors Error Code LED Sequence Power Source Error Code Errors LED Sequence Power Feed Wire Drive in the Installation Setting DIP Switches Auxiliary Switches in the Wire DrivePerform the Encoder PC Board Rectly. See Figure A.2. Troubleshooting and Repair Troubleshooting and Repair Weld Welding Problems Control BOX/WIRE Drive Error Code Chart Control BOX/WIRE Drive Error Code Chart Power Feed Error Code Chart PW 455 Control Board LED Definitions LED Color and Number Circuit Indicators Materials Needed Test ProceduresInput Filter Capacitor Discharge Procedure Test Description Never USE a Shorting Strap for this Procedure Test Procedure Switch Board Test 19D 19C 26TROUBLESHOOTING and REPAIRF-26Reconnect Switches Perform the Capacitor Discharge Procedure 27TROUBLESHOOTING and REPAIRF-27 11/12 15/1620 +19 13/14 17/18 Power Wave 455/POWER Feed Output Rectifier Test 30TROUBLESHOOTING and REPAIRF-30 Rectifier Module Replacement ProcedureNegative Output Terminal Positive + Input Rectifier Test Troubleshooting and Repair Input Contactor Test Probe Acceptable Meter Readings Power Wave 455/POWER Feed Input Contactor Test 36TROUBLESHOOTING and REPAIRF-36 X4/X4A 601/601ATest Points Auxiliary Transformer no Test 38TROUBLESHOOTING and REPAIRF-38 P81High voltage is present at plug P80 Troubleshooting and Repair FAN Motor Leads High voltage is present at primary of Auxiliary Transformer Power Wave 455/POWER Feed Power Board Test J32 J31 91011 3 4 Power PC Check 65 VDC Power Wave 455/POWER Feed Current Transducer Test 48TROUBLESHOOTING and REPAIRF-48 Current TransducerP90 500 450 400 350 300 250 200 150 100 Power Wave 455/POWER Feed Drive Motor Test #551 + Box and Drive Motor Removal and Replacement#551 #550 Black Tach Feedback Test #3 #1 Black RED Blue Wire Feed Control Board Voltage Sense PC Board Test J1 4 5 56TROUBLESHOOTING and REPAIRF-56 Dual Encoder PC Board Test Dual Encoder PC Board Test Control Cable Continuity Test Control Cable Continuity Test Component Replacement Procedures GAS Solenoid Removal and ReplacementDescription Installation 62TROUBLESHOOTING and REPAIRF-62 Wire Feeder Control Board Removal Replacement Wire Feeder Control Board Removal and Replacement Tach Hall Effect Assembly Removal Replacement Replacement Procedure Removal Procedure Gear BOX and Drive Motor Removal Replacement #551#550 Drive Motor Gear BOX To Remove the Wire Drive Assembly from the Gear BOX Replacement ProceduresTo Remove the Drive Motor from the Gear BOX Power Wave 455/POWER Feed Switch Board and Filter Capacitor Removal Replacement 13/14 17/18 Switch Board and Filter Capacitor Removal11/12 15/16 19+ Nylon Screw Replacement Procedure Meter Accuracy Check Power Wave 455 / PF-10 Meter Accuracy CheckProcedure to Repair if Meters are OUT of Range Material Needed Control or Power Board Removal and Replacement Control or Power Board Removal and Replacement Installation Procedure Power Wave 455/POWER Feed Auxiliary Transformer no Removal Replacement Procedure Auxiliary Transformer no Removal Replacement Procedure TOC Power Wave 455/POWER Feed Main Input Contactor Removal and Replacement X4/X4A Replacement Procedure Power Wave 455/POWER Feed Input Rectifier Removal and Replacement NEG Figure F.25 Input Rectifier Removal and Replacement Output Rectifier and Module Removal Replacement Rectifier Assembly Removal Procedure Return to Power Wave 455/POWER Feed Flowchart Power Source Error Interpretation Guide Power Source Error Interpretation Guide Flowchart Performance Troubleshooting Guide Performance Troubleshooting Guide Flowchart Functional Troubleshooting Guide Functional Troubleshooting Guide Table of Contents Electrical Diagrams Section Electrical Diagrams Return to Section TOC Power Wave 455 Wiring Diagram Code Rear Reconnect Panel Sense Power Feed 10 Control Box Wiring Diagram Power Feed 10 Wire Drive Wiring Diagram Master Power Feed 10 Machine Schematic To Section Power Wave 455 Machine Schematic Code Switch Board #1 Left Return to Section Return to Section TOC To Section TOC Power Wave 455 Control PC Board Schematic 1 Power Wave 455 Control PC Board Schematic 2 Power Wave 455 Control PC Board Schematic 3 ComF Power Wave 455 Power PC Board Schematic 17921 M Power Wave 455 Input PC Board Schematic V450 Power Wave 455 Switch PC Board Schematic Code 10372 221K Power Wave 455 Switch PC Board Schematic Code Encoder Supply Power Feed 10 Mother Control PC Board Schematic To Master Power Feed 10 Control PC Board Schematic 14X-5 Power Feed 10 Display PC Board Schematic 22920 Power Feed 10 Encoder PC Board Schematic 23918 Power Feed 10 Voltage Sense PC Board Schematic