Lincoln Electric IM586-B manual Electric Shock can kill, Procedure for Replacing PC Boards

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E-7	TROUBLESHOOTING	E-7

	Observe all Safety Guidelines detailed throughout this manual

PC BOARD TROUBLESHOOTING GUIDE - CONTROL P.C. BOARD

WARNING

ELECTRIC SHOCK can kill.

•Have a qualified individual install and service this equipment.

•Turn the power source input power off at the disconnect switch before work- ing on this equipment.

•Do not touch electrically hot parts.

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c. If PC board is visibly damaged mechanically, inspect for cause, then remedy before installing a replacement PC board.

If there is damage to the PC board or if replacing PC board corrects problem, return it to the local Lincoln Electric Field Service Shop.

Procedure for Replacing PC Boards

Before replacing a PC board which is suspected of being defective, visually inspect the PC board in ques- tion for any electrical or mechanical damage to any of its components and conductors on the back of the board.

a.If there is no visible damage to the PC board, install a new one and see if this remedies the problem. If the problem is remedied, reinstall the old PC board to see if the problem still exists. If it does no longer exist with old PC board:

1.Check the PC board harness connector pins for corrosion, contamination, or looseness.

2.Check leads in the plug harness for loose or intermittent connection.

b.If PC board is visibly damaged electrically, before possibly subjecting the new PC board to the same cause of failure, check for possible shorts, opens, or grounds caused by:

1.Frayed or pinched lead insulation.

2.Poor lead termination, such as a poor contact or a short to adjacent connection or surface.

3.Shorted or open motor leads, or other external leads.

4.Foreign matter or interference behind the PC boards.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

STT-10

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Contents IM586-B Safety California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a LʼArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents P312 Series Diagrams Section FVii STT-10 InstallationGeneral Description Recommended Processes and Equipment Safety PrecautionsMounting the 10 Series Wire Drive Unit Mounting the STT-10 Control Box K1565-2 Boom Model Mounting Synergic 7F Wire Drive UnitConnecting Wire Drive Unit to Control Box Series Wire Drive Ratio Selection Wire Drive Speed Range SelectionControl Speed Range Setting Electrode RoutingSynergic 7F 4-Roll Kits KP655 and KP656 Wire Feed Drive Roll KitsProcedure to Install Drive Roll and Wire Guides Electric Shock can killGUN and Cable Assemblies with FAST-MATE Connection GUN Connections GeneralGUN and Cable Assemblies with Standard Connection Gmaw GunsGun Cable Connection with Fast-Mate Connection Synergic 7F Wire Drives K679Water Connections for Water Cooled Guns Gmaw Shielding GasElectrical Installation Input Cable STT-10 Control to Power SourceBoom and Bench Conversions Optional Features InstallationDual Procedure Switch Options Materials Required for bench to boom conversionOperating Instructions STT-10 Control DIP Switch SetupOperation Robotics Mode Selection Step Trigger Mode Operation SelectionSecurity Mode Selection Range Lockout Mode SelectionOperation Keys Power-Down SaveKeypad and Display Operation Keypad and Display DescriptionDisplay Control Keys Trigger Mode SelectionTrigger Mode Select Key Security Mode Acceleration SelectionWire Reel Loading READI-REELS, Spools or Coils Figure B.1Feeding Electrode and Brake Adjustment Drive Roll Pressure SettingMaking a Weld Procedure for Setting Angle of FeedplateGAS Guard Regulator Setting Explanation of Prompting and Error Messages Wire Reel ChangingWire Feed Overload Protection Display Prompt or ErrorSolid & Cored Steel Electrode Driven AccessoriesRoll DH Drive K1558-1 Remote Switch Interface Module K683-1 Dual Procedure SwitchK683-3 Dual Procedure Switch K1758-L Input Cable Assem BLYMagnum 200/300/400 Guns GUN Adapters for 10 Series Wire Drive HeadsCoil Adapter K206, K289, and K309K1634-1 Wire Reel Enclosure KIT GUN and Cable AssembliesMaintenance MaintenanceTroubleshooting HOW to USE Troubleshooting GuideContact your local Lincoln Authorized Field Service Facility Authorized Field Service Facility Contact your local LincolnTroubleshooting Damaged encoder p.c. board Troubleshooting Procedure for Replacing PC Boards Electric Shock can killDiagrams Diagrams Diagrams Connection Diagrams Dimension Print Bench Model Dimension Print Boom Model Control Box STT-10 STT-10 Precaucion Warnung