Lincoln Electric DC-400 specifications Power Rectifier Bridge Diagram

Page 37

F-4

DIAGRAMS

F-4

 

 

 

POWER RECTIFIER BRIDGE

DIAGRAM 1

PLUG TO SNUBBER BOARD

220

221 X1

D1

SCR1

 

P5

 

 

 

 

 

220

 

 

223

204

 

 

 

222

X2

 

X3

D2

 

ANODE

D3

 

 

CATHODE

SCR2

 

SCR3

ANODE

 

 

 

 

GATE

CATHODE

_ +

To (+) side

of capacitor

bank

D4

SHUNT

+_

 

 

 

 

204

 

 

 

 

 

 

 

 

204

 

 

 

 

 

 

 

To

 

 

 

 

 

 

G1

G2

G3

204

 

mode

 

 

switch

 

 

 

 

204

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gate leads plug to control P3

P.C. board

To plug

P1

To T1 main transformer

DC-400

Image 37
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.