Lincoln Electric 455 M Input Connection, Input Fuse and Supply Wire Considerations, Table A.1

Page 13
ELECTRODE AND WORK CABLE CONNECTIONS

A-3

INSTALLATION

A-3

 

 

 

 

FIGURE A.1 - CONNECTION DIAGRAM ON CONNECTION/INPUT ACCESS DOOR

 

INPUT SUPPLY CONNECTION DIAGRAM

.

.

.

.

Disconnect input power before inspecting or servicing machine.

Do not operate with covers removed.

Do not touch electrically live parts.

Only qualified persons should install, use or service this equipment.

W / L3

 

V / L2

CR1

U / L1

 

THE LINCOLN ELECTRIC CO. CLEVELAND, OHIO U.S.A.

XA

S24190

NOTE: Turn main input power to the machine OFF before performing connection procedure. Failure to do so will result in damage to the machine.

INPUT CONNECTION

WARNING

Only a qualified electrician should connect the input leads to the

Power Wave 455M (CE). Connections should be made in accordance with all local and

national electrical codes and the connection dia- gram located on the inside of the reconnect/input access door of the machine. Failure to do so may result in bodily injury or death.

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Use a three-phase supply line. A 45 mm (1.75 inch) diameter access hole for the input supply is located on the upper left case back next to the input access door. Connect L1, L2, L3 and ground according to the Input Supply Connection Diagram decal located on the

inside of the input access door or refer to Figure A.1.

INPUT FUSE AND SUPPLY WIRE CONSIDERATIONS

Refer to the Technical Specifications at the beginning of this Installation section for recommended fuse and

wire sizes. Fuse the input circuit with the recommend- ed super lag fuse or delay type breakers (also called “inverse time” or “thermal/magnetic” circuit breakers). Choose an input and grounding wire size according to local or national electrical codes. Using fuses or circuit breakers smaller than recommended may result in “nuisance” shut-offs from welder inrush currents, even if the machine is not being used at high currents.

Connect a work lead of sufficient size and length (Per Table 1) between the proper output terminal on the power source and the work. Be sure the connection to the work makes tight metal-to-metal electrical contact. To avoid interference problems with other equipment and to achieve the best possible operation, route all cables directly to the work and wire feeder. Avoid excessive lengths and do not coil excess cable.

Minimum work and electrode cable sizes are as follows:

 

 

TABLE A.1

 

Current (60% Duty Cycle)

MINIMUM COPPER

 

 

WORK CABLE SIZE AWG

 

 

Up To-30 m (100 Ft.

Length)

400 Amps

85 mm2

67 mm2 (2/0)

 

500 Amps

(3/0)

 

600 Amps

85 mm2

(3/0)

NOTE: K1796 coaxial welding cable is recommended to reduce the cable inductance in long cable lengths. This is especially important when Pulse welding up to 350 amps.

CAUTION

When using inverter type power sources like the Power Waves, use the largest welding (electrode and work) cables that are practical. At least 67 mm2 2/0 copper wire - even if the average output current would not normally require it. When pulsing, the pulse current can reach very high levels. Voltage drops can become excessive, leading to poor weld- ing characteristics, if undersized welding cables are used.

POWER WAVE 455M (CE)

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Contents Power Wave 455 M California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéSafety Safety Thank You Table of Contents Thru E-6 Section ESection F-1 Section F-2Technical Specifications Power Wave 455M CE K2202-2 InstallationHigh Frequency Protection Machine GroundingLifting StackingInput Connection Input Fuse and Supply Wire ConsiderationsTable A.1 Voltage Sensing Negative Electrode PolarityCable INDUCTANCE, and ITS Affect on Pulse Welding Table A.2 System DescriptionElectrode Voltage Sensing Single Head Feeder Configuring the SystemSingle Head Boom Feeder UP to 4 Feeders AllowedDual Head Boom Feeder using two single heads Control Cable Specifications Welding with Multiple Power WavesInstallation DIP Switch Settings and Locations Receptacle SpecificationsControl Board DIP Switch Water Flow Sensor1OPERATIONB-1 Safety PrecautionsPower Wave 455M CE Definition of Welding Terms OperationRecommended Processes and Equipment General DescriptionRequired Equipment LimitationsFigure B.1 Case Front ControlsFringe Procedures Nominal ProceduresWelding Adjustments Making a WeldConstant Voltage Welding Welding ModeARC Control Figure A.6 Current Wave Form Pulse Pulse WeldingFactory Installed AccessoriesField Installed Optional EquipmentRoutine Maintenance MaintenanceHOW to USE Troubleshooting Guide TroubleshootingError code before the machine is turned off Using the Status LED to Troubleshoot System ProblemsError Code # Indication Error Codes for the Power WaveContact your local Lincoln Authorized Field Service FacilityPower Feed System Using Status LED section of this text Cabling, etc Verify weld mode is correct for Power Wave 455M CE Wiring Diagram Connection Diagram Semi-automatic Simple System Connection DiagramDimension Print Power Wave 455M DiagramsPrecaucion Warnung