Lincoln Electric IM746 manual Troubleshooting Guide, Contact your local Lincoln

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E-4

TROUBLESHOOTING

E-4

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

PROBLEMS

 

POSSIBLE AREAS OF

 

RECOMMENDED

(SYMPTOMS)

 

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Major physical or electrical damage

1.

Contact your local authorized

 

 

 

 

is evident when the sheet metal

 

 

 

Lincoln Electric Field Service

 

 

 

 

 

covers are removed.

 

 

 

facility for technical assis-

 

 

 

 

 

 

 

 

 

tance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input fuses keep blowing, or input

 

 

1.

Make certain that fuses or

 

 

 

 

 

breaker keeps tripping.

 

 

 

breakers are properly sized.

 

 

 

 

 

 

 

 

 

See Installation section of this

 

 

 

 

 

 

 

 

 

manual for recommended

 

 

 

 

 

 

 

 

 

fuse and breaker sizes.

 

 

 

 

 

 

 

 

2.

Welding procedure is drawing

 

 

 

 

 

 

 

 

 

too much output current, or

 

 

 

 

 

 

 

 

 

duty cycle is too high.

 

 

 

 

 

 

 

 

 

Reduce output current, duty

 

 

 

 

 

 

 

 

 

cycle, or both.

 

 

 

 

 

 

 

 

3.

There is internal damage to

 

 

 

 

 

 

 

 

 

the power source. Contact an

 

 

If all recommended possible areas

 

 

 

 

 

 

authorized Lincoln Electric

 

 

of misadjustments have been

 

 

 

 

 

 

Service facility.

 

 

checked and the problem persists,

 

 

 

 

 

 

 

 

 

contact your local Lincoln

 

 

Machine will not power up (no

 

 

1.

Make certain that the Power

 

 

 

 

 

 

 

 

Authorized Field Service Facility.

 

 

lights, no fan, etc.)

 

 

 

Switch (SW1) is in the ON

 

 

 

 

 

 

 

 

 

position.

 

 

 

 

 

 

 

 

2.

Circuit Breaker CB1 (on Case

 

 

 

 

 

 

 

 

 

Front) may have opened.

 

 

 

 

 

 

 

 

 

Reset an over load on the 40V

 

 

 

 

 

 

 

 

 

Wire Feeder supply may

 

 

 

 

 

 

 

 

 

cause this to trip.

 

 

 

 

 

 

 

 

3.

Circuit breaker CB3 (in recon-

 

 

 

 

 

 

 

 

 

nect area) may have opened.

 

 

 

 

 

 

 

 

 

Reset. Also, check input volt-

 

 

 

 

 

 

 

 

 

age selection, below.

 

 

 

 

 

 

 

 

4.

Input voltage selection made

 

 

 

 

 

 

 

 

 

improperly. Power down,

 

 

 

 

 

 

 

 

 

check input voltage reconnect

 

 

 

 

 

 

 

 

 

according to diagram on

 

 

 

 

 

 

 

 

 

reconnect cover.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.

POWER WAVE 405

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Contents Power Wave Safety Power WaveElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcElectromagnetic Compatibility EMC Safety Thank You Table of Contents Installation Technical Specifications Power WaveSafety Precautions Select Suitable LocationVoltage Sensing Output CABLES, Connections and LimitationsNegative Electrode Polarity Electrode Voltage Sensing Table A.1Work Voltage Sensing System Description System Model6INSTALLATIONA-6 System SET-UPBasic Rules Simple SystemSingle Group Multi-Head System Multiple Group SystemNo FH0 Alllowed Figure A.5 Single Group Multi-Head System Alternate MethodTWO Power Waves Welding with Multiple Power WavesControl Cable Specifications Control Board DIP Switch Receptacle SpecificationsDIP Switch Settings and Locations Operation General DescriptionRecommended Processes and Equipment Recommended ProcessesRequired Equipment LimitationsDuty Cycle and Time Period Case Front ControlsCase Front Layout Power Wave Nominal ProceduresFringe Procedures Welding AdjustmentsWelding Mode Constant Voltage WeldingVolts / Trim ARC ControlPulse Welding PULSE-ON-PULSE GMAW-PPWelding Procedures for PULSE-ON-PULSE Table B.2 Benefits of Pulse on Pulse from Lincoln ElectricTIG Gtaw SmawPower Mode Recommended Welding Procedures for Power Mode Table B.3Accessories Factory InstalledField Installed Optional EquipmentAlways wear a face shield and long sleeves when servicing MaintenanceCapacitor Discharge Procedure Troubleshooting HOW to USE Troubleshooting GuideUsing the Status LED to Troubleshoot System Problems Error code before the machine is turned offError Codes for the Powerwave Error Code # IndicationContact your local Lincoln Troubleshooting GuideAuthorized Field Service Facility Problems Possible Areas Recommended Symptoms Troubleshooting Troubleshooting Diagrams Connection Diagram Connection Diagram Semi-automatic Simple SystemDimension Print Precaucion Warnung