Lincoln Electric IM311-E manual Troubleshooting

Page 19

E-3

TROUBLESHOOTING

E-3

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

Improper wire speed control.

1.

Faulty printed circuit board,

 

 

faulty rheostat, or faulty motor.

 

 

Can’t obtain required voltage.

1. Defective power source of CV

 

 

Converter.

 

2.

On SAM welders, constant

 

 

voltage control must be adjusted

 

 

to give required voltage and

 

 

mode switch must be set to

 

 

constant voltage position.

 

3.

On transformer or inverter

 

 

welders, fine voltage control

 

 

switch must be set to remote

 

 

position.

 

4.

Broken lead(s) in 75-76-77

 

 

(A-B-C) control circuit.

 

5.

Defective voltage control

 

 

rheostat.

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

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.

LN™-23P

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Contents LN -23P California Proposition 65 Warnings SafetyElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Technical Specifications LN-23P InstallationEnvironmental Rating Input Cable Safety PrecautionsWork Cable and Remote Voltage Sensing Work Lead Optional Features Installation Wire Drive Rolls and Guide TubesInnershield GUN and Cable Operation Loading the Wire ReelProduct Description For machines that have code numbers Higher than Instructions for Loading Wire Into LN-23PDrive Roll Pressure Adjusting Wire Feed Speed and VoltageMaking the Weld GUN and Cable Assemblies AccessoriesEnclosed Wire Reel Support Optional EquipmentWire Drive Assembly Maintenance MaintenanceRemoving Idle Roll Assembly GUN and Cable MaintenanceCircuit Protection Nameplates Power SourceHOW to USE Troubleshooting Guide TroubleshootingContact your local Lincoln Authorized Field Service Facility Troubleshooting LN-23P Adapter KIT Wiring Diagram DiagramsWiring Diagram LN-23P Wiring Diagram Connection of CV Converter to LN-23P’S and SA-200 or SA-250 14269 Connection of LN-23P and Adapter KIT to R3S-250 or R3S-325 Connection of LN-23P and Adapter KIT to R3S-400, 600 or 14272 Diagrams Diagrams Diagrams 17124 2-19-82M 12DIAGRAMSField Calibration of K-316 LN-23P P.C. Board Precaucion Warnung