Lincoln Electric SVM167-A service manual Output Polarity Connections

Page 10

 

 

A-4

INSTALLATION

A-4

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FIGURE A.1 — Dual Voltage Machine Input Connections

 

 

 

 

 

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3. The 208/230 volt 50/60 Hz model POWER MIG® is

OUTPUT POLARITY CONNECTIONS

 

 

 

 

shipped with a 7 ft.(2.1m). input cable and plug con-

 

 

 

 

nected to the welder.

 

The welder, as shipped from the factory, is connected

 

 

 

 

 

 

4. Using the instructions in Figure A.2, have a qualified

for electrode positive (+) polarity. This is the normal

 

 

polarity for GMA welding.

 

 

 

electrician connect a receptacle (Customer

 

 

 

 

 

 

 

Supplied) or cable to the input power lines and the

If negative (–) polarity is required, interchange the con-

 

 

system ground per the U.S. National Electrical Code

 

 

nection of the two cables located in the wire drive com-

 

 

and any applicable

local codes. See “Technical

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partment near the front panel. The electrode cable,

Specifications” at the beginning of this chapter for

which is attached to the wire drive, is to be connected

proper wire sizes. For long runs over 100 feet, larg-

 

 

Section

Master

to the negative (–) labeled terminal and the work lead,

er copper wires should be used. Fuse the two hot

which is attached to the work clamp, is to be connect-

lines with super lag type fuses as shown in the fol-

ed to the positive (+) labeled terminal.

 

lowing diagram. The center contact in the receptacle

 

 

 

to

to

 

 

is for the grounding connection. A green wire in the

 

 

Return

Return

 

 

input cable connects this contact to the frame of the

 

 

welder. This ensures proper grounding of the welder

 

 

 

 

frame when the welder plug is inserted into a

 

 

 

 

grounded receptacle.

 

 

 

FIGURE A.2 — Receptacle Diagram

 

 

CONNECT TO A SYSTEM

 

 

GROUNDING WIRE. SEE

 

 

THE UNITED STATES

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NATIONAL ELECTRICAL

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CODE AND/OR LOCAL

CODES FOR OTHER

 

 

Section

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DETAILS AND MEANS FOR

PROPER GROUNDING.

 

 

to

to

CONNECT TO HOT WIRES

OF A THREE-WIRE, SINGLE

Return

Return

PHASE SYSTEM.

 

 

POWER MIG® 215

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Contents Power MIG Safety Depends on YouSafety California Proposition 65 WarningsElectric Shock can kill ARC Rays can burn Can be dangerousCylinder may explode if damaged Welding and Cutting Sparks can cause fire or explosionIii Précautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Table of Contents Installation SECTION Installation Technical Specifications Power MIGInstallation Safety PrecautionsUncrating the Power MIG LocationOutput Polarity Connections Shielding GAS GUN and Cable InstallationAUXILIARY POWER RECEPTACLES Cylinder may explode if damagedPower MIG Operation SECTION  OPERATIONB-2 Wear eye, ear and body protec- tionOperation Wire Reel Loading READI-REELS, Spools or Coils Procedure for Changing Drive AND IDLE Roll SetsTo Start the Welder Idle Roll Pressure Setting Feeding Wire ElectrodeWire Drive Configuration Making a Weld Figure B.2bFAN Control Avoiding Wire Feeding ProblemsWire Feed Overload Protection Input Line Voltage VariationsPower MIG Accessories SECTION  Accessories Making a Weld with the Spool GUN 3ACCESSORIESC-3Installed Adapter KIT and Spool GUNPower MIG Maintenance SECTION  Maintenance Liner Removal and Replace Ment Table D.1GUN Handle Disassembly English Metric Description SizeFigure D.2 Major Component Locations Power MIG Line Switch Theory of Operation SECTION Figure E.2 Input Power Circuit Theory of OperationOutput Rectification Contactor and Control Board Figure E.3 Control CircuitsControl BOARD, GUN Trigger and Wire Drive Motor Figure E.4 Optional CircuitsProtective Devices and Circuits Wirefeed Overload ProtectionThermal and Overload Protection Power MIG TROUBLESHOOTING AND REPAIR SECTION  Troubleshooting and Repair How To Use Troubleshooting GuidePC Board Troubleshooting Procedures Perform the Main Transformer Perform the Output Contactor Avoid contact with any portion These capacitors is toxicYour body Function Problems Wire Speed Potentiometer Test Welding Problems Weld bead is narrow or ropy Make sure the welding proce Test Description Main Transformer TestMaterials Needed ON/OFF Power Switch will be hot during these tests Test ProcedureMain Transformer Test X10 Table F.1. Test Points Input Voltage Test PointsWire Drive Motor and Wire Speed Potentiometer Test Black White1109 a Test for Feedback Voltage to Control BoardVDC Power MIG Output Bridge Rectifier Test Negative Lead Output Bridge Rectifier TestContactor Test Contactor Test Figure F.7. Contactor Terminals and LeadsVolts 10.0 Typical Output Voltage Waveform Machine Loaded MAX TAP GVolts 20.0 Normal Open Circuit Voltage Waveform MAX TAP GMachine Loaded to 180 Amps AT 16 VDC Scope Settings Volts 20.0 Control Board Replacement DescriptionControl Board Replacement ProcedureWire Drive Motor Assembly Replacement Wire Drive Wire Drive Motor Assembly ReplacementBolt Gas Hose TOC Output Diode Bridge Rectifier Replacement Output Diode Bridge Rectifier Mounting Bracket Mounting Bolts Rectifier Power MIG Output Capacitors Replacement Output Capacitors Replacement Figure F.14. Capacitor Bank LocationLead Mounting Bolts Nuts Lock washers 3 places Power MIG 41TROUBLESHOOTING and Repair F-41 Main Transformer ReplacementMain Transformer Replacement See Figure F.17Replacement Figure F.17. Leads X9, X10, 104B,104C, & H1BX2 X3 X4 X5 X6 X7 Lead Power MIG FAN BLADE/MOTOR Replacement FAN BLADE/MOTOR Replacement Perform the Output Capacitor Bank Removal ProcedureOutput Contactor Replacement Output Contactor Replacement Figure F.24Mounting Bolts Retest After Repair Electrical Diagrams Table of Contents Electrical Diagrams SectionPower MIG 215 208/220/230V POWEr miGPower MIG 215 208/220/230V for Codes 11099 SchEmaTic cOmplETE machiNE cODE 11247 l12308 pG1 L12308SchEmaTic cOmplETE machiNE cODE 11247 l12308 pG2 ElEcTrical DiaGramS ElEcTrical DiaGramS ElEcTrical DiaGramS ElEcTrical DiaGramS ElEcTrical DiaGramS ElEcTrical DiaGramS
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