Lincoln Electric DC-400 specifications Multiprocess Switch, STICK, TIG or AIR/CARBON ARC

Page 16

A-8

INSTALLATION

A-8

 

 

 

 

 

WORK

+

 

To stick

 

 

 

 

 

electrode

 

 

 

 

 

holder or

 

 

 

 

 

air carbon

To semi-

 

ELECTRODE

 

 

arc torch

auto or

 

 

 

 

auto

 

 

 

User supplied

equipment

 

 

 

 

 

 

4/0 (107 mm2 )

 

 

 

 

jumper

MULTIPROCESS SWITCH

To change stick polarity, reverse the leads at the (+) and (-) terminals on the right side of the Multiprocess Switch.

NOTE: When a DC-400 equipped with Multiprocess Switch is mounted on an undercarriage, the undercarriage handle in the resting position can hit the case of the Multiprocess Switch. This does no harm, but if the user desires, a 1/4” or 3/8” bolt and nut may be placed in the hole in the undercarriage tow bar to limit the travel of the undercarriage handle.

STICK, TIG OR AIR/CARBON ARC *

a)Turn off all power.

b)Disconnect all wire feed unit control, electrode, and work leads.

c)Place MODE SWITCH in the “CONSTANT CUR- RENT (STICK/TIG)” for air carbon arc.

d)For stick, TIG or air carbon arc, place OUTPUT TERMINALS switch into the “ON” position. With the DC-400 connected for stick, TIG or air carbon arc welding, the output terminals will be energized at all times.

*NOTE: If stick welding, TIG welding or air carbon arc cutting is to be done on the DC-400 along with semi-automatic/automatic welding, then a K804-1 Multiprocess Switch is required. If the Multiprocess Switch is not used, then all control, electrode, and work leads to wire feed equipment must be disconnected from the DC-400 before connecting the DC-400 for stick or air carbon arc cutting.

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 Installation Technical Specifications DC-400Output Maximum Open Circuit Voltage Auxiliary Power Height Width Depth WeightMachine Load Cable400A 100% 500A 50% Duty Lengths CycleRemote Control Adapter Cable K864 Multiprocess Switch K804-1 Multiprocess Switch Connection and Operation Purpose Connection of DC-400 to LN-22 or LN-25Design OperationAuxiliary Power Connections Remote Control ConnectionsCase Features Output ConnectionsMachine & Circuit Protection Thermal Protection Light Multiprocess Switch STICK, TIG or AIR/CARBON ARCOperation Electric Shock can killARC Control Switch Output Terminals SwitchVoltmeter Switch Rating Plate ARC Force Control DialIP21 Degree of protection provided by the enclosureEarth Ground Connection 4OPERATIONB-4Signifying the Earth Ground Connection DC-400 Recommended Processes & Equipment Power Source Operation Voltmeter SwitchDuty Cycle and Time Period Duty Cycle Amps VoltsARC Force Control Dial Effective only in CC mode ARC Control Switch Effective only in CV FCAW/GMAW modeFront View of 14-PIN Connector Receptacle 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 FieldProcedure for Replacing PC Boards Connecting the Remote Control to the MachineFault Protection Operation Power I/0 Switch CheckRemote Control Check Power Diode TestPower Rectifier Bridge Assembly Checking Procedure 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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Manual 42 pages 48.7 Kb

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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