Lincoln Electric IM10018-A manual PRObLEMS Symptoms

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E-9	TROUbLESHOOTING	E-9

	Observe all Safety Guidelines detailed throughout this manual

PRObLEMS (SYMPTOMS)

The weld output terminals are always electrically "hot".

POSSIbLE

CAUSE

OUTPUT PRObLEMS

1.Remove any external leads hooked to #2 and #4 on the ter- minal strip or any connections to the 14 pin MS connector. Set OUTPUT TERMINALS switch to the OFF position. If the problem disappears the fault is in the control cable or wire feeder.

2.If some open circuit voltage is present (over 3VDC.) after per- forming Step #1. then the prob- lem is within the IDEALARC® DC-600 VRD.

RECOMMENDED

COURSE OF ACTION

If all recommended possible areas of possible cause 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.

IDEALARC® DC-600 VRD

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Contents Safety Depends on You Idealarc DC-600 VRDSafety California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiSafety Please Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTAbLE of Contents TAbLE of Contents Installation Technical Specifications Idealarc DC-600 VRDStacking Hole Stacking Pins Safety PrecautionsElectric Shock can Kill Select Proper LocationFuse and Wire SIzES Input Power Supply ConnectionsElectrical Input Connections Ground ConnectionReconnect Procedure See Machine Rating Plate for Required Input Supply VoltageOutput Connections ELECTRODE, Work and #21 Lead ConnectionsAuxiliary Power and Control CON NectionsTerminal Strip 1 T.S.1 Terminal Strip 2 T.S.2Electric Shock can kill Fumes and Gases can be dangerousARC Rays can burn Design Features and Advantages OperationGeneral Description Recommended Processes and EQUIP- MentOFF Input Power Output Control Output Voltage CurrentOutput Terminals Controls and Settings Input Power ON/OFF SwitchPower Light NectionAuxiliary Power in MS-RECEP- Tacle OVERLOAD, OVERCURRENT, and Fault Protection For codes 11707 and aboveRemote Control of Machine Operation Welding Procedure RecommendationsCV Mode CC ModeNA-3 Automatic Wire Feeder Operation Accessories Wire Feeders and TractorsField Installed Options Factory or Field Installed OptionsFigure C.2 MULTI-PROCESS Switch CAbLE Connections Accessories 1MAINTENANCED-1 Safety Precautions Electric Shock can KillRoutine and Periodic Maintenance TROUbLESHOOTING Board can be damaged by static electricity Static-SensitiveDevices Handle only atOutput PRObLEMS TROUbLESHOOTING LOCAL/REMOTE Switch TROUbLESHOOTING Check all Three-Phase input Facility PRObLEMS Symptoms Welding PRObLEMS Poor arc characteristics in all processes BOARD TROUbLESHOOTING Guide Control P.C. bOARDChecking Power ON/OFF Switch S1 Connecting Remote Output Control Rheostat to the MachineBOARD TROUbLESHOOTING Guide VRD P.C. bOARD Checking Output Control RHEO- Stat on Machine R1Diagrams Diagrams Diagrams Diagrams Connection of LN-742 to the DC-600 VRD Power Source FeederConnection of LN-7 to the DC-600 VRD Power Source Connection of LN-8 or LN-9 to the DC-600 VRD Power Source 600Control Cable Connection of NA-5/-5R to the DC-600 VRD Power Source Lincoln Wire DC-600 VRD Dimension Print with K817P Undercarriage DC-600 VRD Dimension Print with K842 Undercarriage Precaucion Warnung