Lincoln Electric DC-400 Accessories, Factory Installed Options, Field Installed Options

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C-1

 

ACCESSORIES

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Factory Installed Options

REMOTE CONTROL ADAPTER CABLE (K864)

 

DIODE OPTION

This internally installed option allows the use of the cold start and cold electrode sensing features of the NA-3, NA-5 or NA-5R.

MULTIPROCESS SWITCH

Factory or field installed kit that mounts on the front of the DC-400, and includes hinged covers over its out- put studs. The switch has three positions: Positive semiautomatic / automatic, negative semiautomatic / automatic, and stick / air carbon arc. Required when using the DC-400 for both semiautomatic/automatic and stick/air carbon arc. The field installed kit equiva- lent is identified as K804-1. For details on the Multiprocess Switch, see the Installation of Equipment section.

Field Installed Options

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.

AMPTROL™ ADAPTER CABLE (K843)

A five wire cable, 12” (.30m) long, is available for easy connection of standard K963 Hand Amptrol or K870 Foot Amptrol. The cable has a 6-pin MS-style con- nector which connects to the Amptrol and terminals which connect to 75, 76 and 77 on the machine termi- nal strip and to the case grounding screw. The Amptrol will control the same range of output as the current control on the welder. (If a smaller range of control is desired for finer adjustment, a K775 Remote may be used in conjunction with the Amptrol Adapter Cable Kit. Connection information is included with the Amptrol Adapter Cable Kit.) The Amptrol arc start switch is nonfunctional in this application.

S T R A I G H T P L U G ( 1 4 P I N )

C A B L E R E C E P T A C L E ( 6 S O C K E T )

T O P O W E R S O U R C E

T O : 1 ) K 8 5 7 R E M O T E C O N T R O L

 

2 ) K 9 6 3 H A N D A M P T R O L

 

3 ) K 8 7 0 F O O T A M P T R O L

 

C A B L E R E C E P T A C L E ( 1 4 S O C K E T )

 

T O L N - 7 W I R E F E E D E R

A“V” cable 12” (.30m) long to connect a K857 Remote Control, K963 Hand Amptrol or K870 Foot Amptrol (6-pin connector) with a wire-feeder (14-pin connector) and the machine (14-pin connector). If a remote control or amptrol is used alone the wire-feed- er connection is then not used.

MULTIPROCESS SWITCH (K804-1)

Field installed kit that mounts on the front of the DC- 400, and includes hinged covers over its output studs. The switch has three positions:Positive semiautomat- ic/automatic,negative semiautomatic/automatic, and stick/air carbon arc. Required when using the DC-400 for both semiautomatic/automatic and stick/air carbon arc. The field installed kit is equivalent to the factory installed option. For details on the Multiprocess Switch, see the section for Installation of Equipment Required for Recommended Processes.

CAPACITOR DISCHARGE CIRCUIT (K828-1)

Circuit that mounts inside the DC-400. Recommended when:

1)DC-400 is used in conjunction with any LN-23P or older LN-8 or LN-9 semiautomatic wire-feeder. Eliminates possible arc flash re-start of weld when trigger interlock is used. Not required with current LN-8 (above Code 8700), or LN-9’s with serial numbers above 115187 (manufactured after 12/83), or any LN-9 having an L6043-1 Power PC Board.

2)DC-400 is used with an LN-22 equipped with an older K279 Contactor-Voltage Control Option. Eliminates electrode overrun when gun trigger is released. Not required when later K279 (above Code 8800) is used.

3)DC-400 is used with any semiautomatic wire-feeder and possible small spark, if electrode touches work just after gun trigger is released, is objectionable.

DC-400

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Contents 10699 11038 11085 11128 11347 RED-D-ARC DC-400California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Section D ViiSection E Technical Specifications DC-400 InstallationOutput Maximum Open Circuit Voltage Auxiliary Power Height Width Depth WeightCable Machine Load400A 100% 500A 50% Duty Lengths CycleRemote Control Adapter Cable K864 Multiprocess Switch K804-1 Connection of DC-400 to LN-22 or LN-25 Multiprocess Switch Connection and Operation PurposeDesign OperationRemote Control Connections Auxiliary Power ConnectionsCase Features Output ConnectionsMachine & Circuit Protection Thermal Protection Light STICK, TIG or AIR/CARBON ARC Multiprocess SwitchElectric Shock can kill OperationOutput Terminals Switch ARC Control SwitchVoltmeter Switch Rating Plate ARC Force Control DialDegree of protection provided by the enclosure IP21Earth Ground Connection 4OPERATIONB-4Signifying the Earth Ground Connection DC-400 Recommended Processes & Equipment Voltmeter Switch Power Source OperationDuty Cycle and Time Period Duty Cycle Amps VoltsARC Control Switch Effective only in CV FCAW/GMAW mode ARC Force Control Dial Effective only in CC modeFront View of 14-PIN Connector Receptacle PIN Lead no FunctionMachine and Circuit Protection Terminal Strip ConnectionsFactory Installed Options AccessoriesField Installed Options Undercarriages K817, K817R, K841 HI-FREQUENCY KIT K799 Codes 8634 and Above onlyRoutine Maintenance 1MAINTENANCED-1HOW to USE Troubleshooting Guide TroubleshootingContact your local Authorized Field Service Facility Output Control Local Your local Authorized Field Service FacilityConnecting the Remote Control to the Machine Procedure for Replacing PC BoardsFault Protection Operation Power I/0 Switch CheckPower Diode Test Remote Control CheckPower Rectifier Bridge Assembly Checking Procedure Power Silicon Controlled Rectifier TestWiring Diagram for Code DiagramsPasted inside Number Wiring Diagram for Code 10699 and Above11085, 11128 Power Rectifier Bridge Diagram Type M12244-7 DC-400 32.00 15.39 30.92 30.02 +.11 Dimension PrintDC-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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