Lincoln Electric DC-400 specifications Machine Load, Cable, 400A 100% 500A 50%, Duty Lengths Cycle

Page 10

A-2

INSTALLATION

A-2

 

 

 

SAFETY PRECAUTIONS

Read this entire section of operating instructions before operating the machine.

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or electrodes with your skin or wet clothing.

•Insulate yourself from the work and ground.

•Always wear dry insulating gloves.

------------------------------------------------------------------------

FUMES AND GASES can be dangerous.

• Keep your head out of fumes.

• Use ventilation or exhaust to remove

fumes from breathing zone.

------------------------------------------------------------------------

WELDING SPARKS can cause fire or explosion.

•Keep flammable material away.

•Do not weld on containers that have held combustibles.

------------------------------------------------------------------------

ARC RAYS can burn.

• Wear eye, ear, and body protection.

------------------------------------------------------------------------

Observe additional guidelines detailed in the beginning of this manual.

LOCATION

The machine should be located in a clean dry place where there is free circulation of clean air such that air movement in through the front and out through the back will not be restricted. Dirt and dust that can be drawn into the machine should be kept to a minimum. Failure to observe these precautions can result in excessive operating temperatures and nuisance shut- down of the machine.

CAUTION

DO NOT MOUNT OVER COMBUSTIBLE SURFACES. Where there is a combustible surface directly under station- ary or fixed electrical equipment, the surface shall be cov- ered with a steel plate at least .06”(1.6mm) thick, which shall extend not more than 5.90”(150mm) beyond the equipment on all sides.

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INPUT POWER CONNECTIONS

By removing the rear access panel the three phase input power is connected to the three line terminals on the input contactor, and the earth grounding lead to the grounding terminal on the input box floor marked

with the symbol . Install and reconnect panel for the proper input voltage per the diagram pasted inside the access panel cover. See Technical Data on A-1.

OUTPUT CABLE CONNECTIONS

The output leads are connected to the output termi- nals marked “+” and “-”. They are located at the lower right and lower left corners of the front panel. Strain relief for the electrode and work cables is provided by routing the leads through the rectangular holes in the base before connecting them to the output terminals. Lift the output stud cover to gain access to the output studs. Lower stud cover after connecting output leads.

OUTPUT CABLES

Installation of Field Installed Options

CABLE SIZES FOR COMBINED LENGTH OF ELEC-

TRODE AND GROUND CABLE

 

MACHINE LOAD

 

 

 

CABLE

400A (100%

500A (50%

DUTY

DUTY

LENGTHS

CYCLE)

CYCLE)

UP TO 50 ft

3/0

2/0

85 mm(2)

87 mm(2)

(15m)

3/0

2/0

50 to 100 ft

85 mm(2)

67 mm(2)

(15-30 m)

3/0

3/0

100-150 ft

85 mm(2)

85 mm(2)

(30-46 m)

3/0

3/0

150-200 ft

85 mm(2)

85 mm(2)

(46-61 m)

4/0

4/0

200-250 ft

107 mm(2)

107 mm(2)

(67-76 m)

 

 

REMOTE OUTPUT CONTROL

(K857 WITH K864 ADAPTER OR K775 )

The K857 has a 6-pin MS-style connector. The K857 requires a K864 adapter cable which connects to the 14-pin connector on the machine.

An optional “remote output control” is available. This is the same remote control that is used on the Lincoln R3R, and DC-600 power sources (K775). The K775 consists of a control box with 28 ft (8.5m) of four con- ductor cable. This connects to terminals 75, 76, and 77 on the terminal strip and the case grounding screw

so marked with the symbol on the machine. These terminals are located behind the control panel on the front of the power source. This control will give the same control as the output control on the machine.

DC-400

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Contents RED-D-ARC DC-400 10699 11038 11085 11128 11347Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Section D ViiSection E Output Maximum Open Circuit Voltage Auxiliary Power InstallationTechnical Specifications DC-400 Height Width Depth Weight400A 100% 500A 50% Machine LoadCable Duty Lengths CycleRemote Control Adapter Cable K864 Multiprocess Switch K804-1 Design Multiprocess Switch Connection and Operation PurposeConnection of DC-400 to LN-22 or LN-25 OperationCase Features Auxiliary Power ConnectionsRemote Control Connections Output ConnectionsMachine & Circuit Protection Thermal Protection Light Multiprocess Switch STICK, TIG or AIR/CARBON ARCOperation Electric Shock can killVoltmeter Switch Rating Plate ARC Control SwitchOutput Terminals Switch ARC Force Control DialIP21 Degree of protection provided by the enclosureEarth Ground Connection 4OPERATIONB-4Signifying the Earth Ground Connection DC-400 Recommended Processes & Equipment Duty Cycle and Time Period Power Source OperationVoltmeter Switch Duty Cycle Amps VoltsFront View of 14-PIN Connector Receptacle ARC Force Control Dial Effective only in CC modeARC Control Switch Effective only in CV FCAW/GMAW mode PIN Lead no FunctionTerminal Strip Connections Machine and Circuit ProtectionFactory Installed Options AccessoriesField Installed Options HI-FREQUENCY KIT K799 Codes 8634 and Above only Undercarriages K817, K817R, K8411MAINTENANCED-1 Routine MaintenanceTroubleshooting HOW to USE Troubleshooting GuideContact your local Authorized Field Service Facility Output Control Local Service Facility Your local Authorized FieldFault Protection Operation Procedure for Replacing PC BoardsConnecting the Remote Control to the Machine Power I/0 Switch CheckPower Rectifier Bridge Assembly Checking Procedure Remote Control CheckPower Diode Test Power Silicon Controlled Rectifier TestDiagrams Wiring Diagram for CodeWiring Diagram for Code 10699 and Above Pasted inside Number11085, 11128 Power Rectifier Bridge Diagram Dimension Print Type M12244-7 DC-400 32.00 15.39 30.92 30.02 +.11DC-400 Precaucion Warnung
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DC-400 specifications

The Lincoln Electric DC-400 is a versatile and robust DC arc welding power source designed to meet the demands of various industrial applications. Known for its reliability and performance, the DC-400 is ideal for both professional welders and fabrication shops requiring robust equipment that can handle challenging welding tasks.

One of the main features of the DC-400 is its ability to provide a smooth, stable arc, which is essential for achieving high-quality welds. This welding machine is capable of delivering a wide amperage range, typically from 20 to 400 amperes, making it suitable for various welding processes, including MIG, TIG, and Stick welding. The unit's high output capabilities allow it to effectively weld a variety of materials, such as steel, stainless steel, and various alloys.

In terms of technology, the DC-400 integrates advanced power conversion technology that enhances energy efficiency while minimizing heat loss during operation. This not only contributes to lower operating costs but also ensures a longer service life for the machine. The DC-400 features a durable, rugged design, with a robust steel frame that can withstand the rigors of heavy industrial use while providing an IP23 rating for protection against moisture and dust.

Another notable characteristic of the DC-400 is its ease of use. The intuitive controls allow for quick adjustments to settings, enabling welders to easily adapt to different job requirements. The arc characteristics of the DC-400 can be fine-tuned to optimize performance for different welding applications, ensuring consistent results every time.

Moreover, the DC-400 is equipped with built-in safety features such as thermal overload protection, which prevents damage to the machine in case of prolonged operation under heavy loads. This feature enhances the safety of the operator and extends the life of the welding machine.

Overall, the Lincoln Electric DC-400 stands out as a reliable and efficient welding power source. Its combination of high-performance capabilities, advanced technology, and next-level usability makes it a popular choice in the industry. Whether for heavy fabrication, maintenance, or repair work, the DC-400 continues to prove itself as an indispensable tool for professional welders seeking quality and durability in their equipment.
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