Lincoln Electric IM557 manual Troubleshooting

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E-10	TROUBLESHOOTING	E-10

	Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

23. Display is blank

a. Power source is OFF.

b. Feeder supply fuse or circuit breaker at power source is blown or tripped.

c. Display or Control PC board is bad

a. Turn ON power source.

b. Check input cable and feeder unit for short in 41 and 42 circuit. Check for shorted motor. Replace fuse or reset circuit breaker.

c. Observe LED mounted on Control PC board. It should blink on and off at a controlled rate of 1 second ON and 1 second OFF. If so, then replace Display PC board. If not, replace Control PC board. (See Procedure for Replacing 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 Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

SYNERGIC 7 & 7H

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Contents Synergic 7 and 7H Safety Mar ‘95Electric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Mar. ‘93Please Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Technical Specifications Synergic 7 and 7HType K631-3 K631-4 Wire Speed Range Size & Weight Without Wire Stand With K377 Wire StandStandard Features Wire Drive FeaturesGeneral Description Recommended Processes and EquipmentControl Features Y P a D a N D D I S P L a Y Description RUN-IN WFSSafety Precautions Electric Shock can killProcedure to Install Drive Roll and Guide Tubes Wire Feed Drive Roll and Guide Tube KitsSteel Wire Sizes Roll Aluminum Wire SizesGun Cable Connection Wire Feeder to Gun Gun and Cable AssembliesFor GMA Gun Cables Gmaw GunsShut off shielding gas supply when not in use Synergic 7 Water Connections for Water- Cooled GunsGmaw Shielding Gas Cylinder may explode if damagedElectrical Installation Warning Optional Features Installation Work CableCurrent 60% Duty Cycle Up to 100 ft Length 30mInstallation Mode Selection Power-Down SaveOperation Operating InstructionsPreset voltage/trim may be adjusted Display Control KeysCold Feed Step Trigger Mode Selection Dual Procedure Remote Control K1449-1Procedure Selector Switch Memory Ammeter SelectionWire Loading Figure B.1a Threaded Locking CollarInnershield Coils To remove the wire reel from its shaft, grasp Knob so it seats into the shaft when releasedCut the tie wires at this time Coil tie wiresFeeding Electrode READI-REELS a K438 READI-REEL Adapter Must be UsedIdle Roll Pressure Setting Gas Guard Regulator SettingMaking a Weld Wire Reel ChangingWire Feed Overload Protection Explanation of Prompting Error Messages Grounding Lead ProtectorAccessories Optional FeaturesUniversal Wire Reel Stand K1524-1 60 LB .2 KG Coil Adapter K1504-1READI-REEL Adapters MISC. Options K179 type vacuum unit not recommended for use with SynergicMaintenance MaintenanceAvoiding Wire Feeding Problems Routine Maintenance1TROUBLESHOOTINGE-1 Locate Problem SymptomTroubleshooting Welding Ing and gas flow rate is properIng ReplaceNo control of wire feed Ters on wire feeder display do notDefective wire feed motor tach or Connector J1 on control PCWire feed motor runs and solenoid Power source is defective Wiring harness or Control PCSpeed does not change when Run-in and weld speeds are set Or there may be a problem withMeters on wire feeder display do Not match those on powerProblem with wire feeder harness Remote control kit must be usedTroubleshooting Dure switch Be connected Between procedures a and BDisplay. If not, refer to Problem Wiring harness, or Control boardLocal dual procedure switch Dual procedure switch is used toSwitch between procedures a Faulty communication betweenTroubleshooting HXX Procedure for Replacing PC Boards Electric Shock can kill Diagrams Wiring Diagram SynergicInput Connection Diagram Electric Shock Can KillDimension Print W I R E R E E L S T a N DSynergic 7 & 7H Synergic 7 & 7H Synergic 7 & 7H Synergic 7 & 7H Precaucion Warnung