Lincoln Electric IM559 manual Procedure for Replacing PC Boards Electric Shock can kill

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E-12

TROUBLESHOOTING

E-12

 

 

 

Procedure for Replacing PC Boards

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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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 prob- lem. 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.

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.

Gun Cable Connector Requirements to Permit Proper Connection to Wire Feed Units

Connector for 1/16 - 5/64” (1.6 - 2.0 mm) Wire

Connector for .023 - .052” (0.6 / 1.3 mm) Wire (For all other dimensions, See Diagram above).

NOTE: Connector part with .749/.747 (19.0/18.9 mm) diameter should be made from brass if it is to be part of the welding current carrying circuit.

 

“A” Diameter Hole

 

to be Concentric to

Wire Size

.749/.747 (19.0/18.9 mm)

in. (mm)

Diameter Within .008 (0.2) F.I.M.

 

 

 

 

.068- 5/64

.125 [1/8 (3.2 mm) Drill]

(1.7-2.0)

 

 

 

1/16 (1.6)

.078 [5/64 (2.0 mm) Drill]

 

 

.045 & .052 (1.2 & 1.3)

.062 [1/16 (1.6 mm) Drill]

 

 

.023-.035 (0.6-0.9)

.055 [#54 (1.4 mm) Drill]

 

 

All dimensions in inches and (millimeters)

Switch Requirements

1/2 Amp AC 24 Volts - Inductive

1/2 Amp DC 24 Volts - Inductive

SYNERGIC 7F & FH

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Contents Synergic 7F and Synergic 7FH Mar ‘95 SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionMar. ‘93 Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Model InstallationType K678-2 K679-1 K679-2 Wire Speed Range Wire Feed Features Standard FeaturesGeneral Description Recommended Processes and EquipmentControl Features Y P a D a N D D I S P L a Y Description Connecting Wire Feed Unit to Control Box Safety PrecautionsElectric Shock can kill Mounting the Control Box K678-2Wire Feed Drive Roll and Guide Tube Kits Procedure to Install Drive Roll and Guide TubesSteel Wire Sizes Roll Aluminum Wire SizesGun Cable Connection Gun and Cable Assemblies with Standard L. E. ConnectionsGmaw Guns Innershield GunsSynergic 7F Water Connections for Water-Cooled Guns Gun Cable Connections Wire Feeder to GunGmaw Shielding Gas Cylinder may explode if damagedWork Cable Electrical InstallationCurrent 60% Duty Cycle Up to 100 ft Length 30mElectrical Installation section for instructions Optional Features InstallationK648, K649 or K642 Input Cable Assembly See Mode Selection Power-Down SaveOperation Operating InstructionsDisplay Control Keys Timer/Crater Select key enables 4-step with crater fill Procedure Selector SwitchMemory Ammeter Selection To Mount 10 to 44 lb 4.5-20kg Spool 12/300mm Diameter Feeding Electrode and Brake AdjustmentFeeding Electrode To Mount a 50-60lb 22.7-27.2kg CoilGas Guard Regulator Setting Wire Loading of 13-14lb 6kg Innershield CoilsIdle Roll Pressure Setting Making a Weld Wire Reel ChangingWire Feed Overload Protection Explanation of Prompting Error Messages Optional Features AccessoriesREADI-REEL Adapters Maintenance MaintenanceTroubleshooting Guide TroubleshootingTions in control cable Trouble shooting informationReplace contact tip Ing and gas flow rate is proper WeldingIng ReplaceTers on wire feeder display do not No control of wire feedDefective wire feed motor tach or Control PC board see Procedure forWiring harness or Control PC Wire feed motor runs and solenoid Power source is defectiveSpeed does not change when Run-in and weld speeds are set Or there may be a problem withNot match those on power Meters on wire feeder display doProblem with wire feeder harness Remote control kit must be usedTroubleshooting Between procedures a and B Dure switch Be connectedDisplay. If not, refer to Problem Faulty local dual procedure switchDual procedure switch is used to Local dual procedure switchSwitch between procedures a Faulty communication betweenOr tripped Breaker at power source is blownCircuit breaker Display or Control PC board is BadCedure for replacing PC boards Eprom checksum error See Problem 5 or see Section onOnds. Turn power back on. If EP is X8 on Control PC board is faultySwitch Requirements Procedure for Replacing PC Boards Electric Shock can killControl P.C Board DIAGRAMSF-1Input Connection Diagram DiagramsPrint Wire Feed Unit Dimension Print Synergic 7F & FH Synergic 7F & FH Precaucion Warnung
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