Lincoln Electric Explore Lincoln 6 Pin Remote and Accessories for Your Welder
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C-2

C-2

ACCESSORIES

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OPTIONS/ACCESSORIES

The following options/accessories are available for your CV-400 from your local Lincoln Electric Distributor.

FACTORY INSTALLED OPTIONS

Diode Option - This internally installed option allows use of the cold start and cold electrode sensing fea- tures of the NA-3, NA-5, or NA-5R automatic wire feed- ers. See the topic Connecting the NA-3[NA-5] to the CV-400.

Ammeter and Voltmeter - Display output current and voltage when welding.

FIELD INSTALLED OPTIONS

The following options/accessories are available from your local Lincoln Distributor.

Undercarriage (K817P) - Includes a platform and polyolefin wheels for easily moving the welder.

Undercarriage (K841) - Includes a platform, wheels, and brackets for supporting the welder and two gas cylinders.

Remote Output Control (K775 or K857 with K864 Adapter Plug) - The K857 has a 6-pinMS-style con- nector. The K857 requires a K864 adapter cable which connects to the 14-pin connector on the CV-400.

The K775 consists of a control box with 28 ft (8.5m) of four conductor cable. This connects to terminals 75, 76, and 77 on the terminal strip and the case ground-

ing screw marked with the symbol on the machine. These terminals are located behind the control panel on the front. These devices will give the same control as the output control on the machine.

Remote Control Adapter Cable (K864) - A "V" cable 12 inches (.30 m) long to connect a K857 Remote Control with a wire-feeder control cable (14-pin con- nector) and the machine (14-pin connector). If a remote control is used alone, the wire-feeder connection is not used. See Figure C.1.

Capacitor Discharge Circuit (K828-1) - Mounts inside

the CV-400. Recommended when:

•CV-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-9s with serial numbers above 115187 (manufactured after 12/83), or any LN- 9 having an L6043-1 Power PC Board.

•CV-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.

•A small spark is objectionable if electrode touches work just after the trigger is released.

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FIGURE C.1

REMOTE CONTROL ADAPTER CABLE (K864)

 

 

CABLE RECEPTACLE (6 SOCKET)

STRAIGHT PLUG (14 PIN)

 

TO K857 REMOTE CONTROL

TO POWER SOURCE

 

 

 

 

 

 

 

 

 

CABLE RECEPTACLE (14 SOCKET)

TO: L-7 WIRE FEEDER

IDEALARC CV-400

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Contents Idealarc CV-400 Safety California Proposition 65 WarningsElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications Idealarc CV-400Safety Precautions Location and VentilationLifting Ground Connection Input Supply ConnectionsInput Wire and Fuse Size Return toReconnect Procedure Output Connections Connect Electrode and Work Leads to Output TerminalsFigure A.5 Output Terminal Connections Connect Wire Feeders Table of Contents Operation Section Safety Instructions OperationOperating Instructions Operational Features and Controls Design FeaturesGeneral Description Recommended ProcessesWelding Capability LimitationsControls and Settings Figure B.1 Case Front ControlsRemote Control Welding OperationLocal Control Auxiliary Power Overload ProtectionIdealarc CV-400 Table of Contents Accessories OPTIONS/ACCESSORIES Factory Installed OptionsField Installed Options Automatic Wire Feeders Connecting the NA-3 to the Idealarc CV-400Connecting the NA-5 to the Idealarc CV-400 FeederterminalAccessories Semiautomatic Wire Feeders Connecting the LN-7 to the Idealarc CV-400 Terminal StripConnecting the LN-8 or LN-9 to the Idealarc CV-400 Idealarc CV-400 Table of Contents Maintenance Safety Precautions Routine and Periodic Maintenance Return to Return to Section TOCFigure D.1 Idealarc CV-400 Table of Contents Theory of Operation Section Theory of Operation Input Line VOLTAGE, Contactor and Main TransformerOutput CONTROL, Rectification and Feedback Protective Devices Circuits Figure E.4 CV-400 Trigger and Thermal Light CircuitSCR Operation Figure E.5 SCR OperationIdealarc CV-400 Table of Contents Troubleshooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Electric Shock can killTroubleshooting Guide Output ProblemsOutput Problems SCR/Diode Perform the SCR/Diode Bridge SCR/Diode Rectifier Bridge Test Welding Problems Control Transformer T2 Voltage Test DescriptionMaterials Needed Test Procedure Control Transformer T2 Voltage TestRight Side View Input Contactor Test Input Contactor Test Test for Contact Continuity Figure F.4 Input Contactor Test ConnectionsMain Transformer T1 Voltage Test Main Transformer T1 Voltage Test Figure F.6 Main Secondary Lead Test Points Blank Main Transformer T1 Voltage Test Static SCR/DIODE Rectifier Bridge Test Static SCR/DIODE Rectifier Bridge Test SCR Anode Remove ANY Insulating Paint Cathode SCR Active SCR Test Active SCR Test Figure F.15 Heat Sink Test Points Figure F.16 SCR Tester Circuit and SCR Connections Maximum Output Setting no Load Normal Open Circuit Voltage WaveformTypical Output Voltage Waveform Machine Loaded Maximum Output Setting no Load Typical SCR Gate Voltage WaveformAbnormal Output Voltage Waveform Machine Loaded ONE Output SCR not FunctioningInput Contactor CR1 CLEANING/REPLACEMENT DescriptionCleaning Procedure Contactor Replacement ProcedureFAN Motor and Blade Removal and Replacement FAN Motor and Blade Removal and Replacement ProcedureSCR/DIODE Rectifier Assembly Removal and Replacement SCR/DIODE Rectifier Assembly Removal and ReplacementSCR Removal and Replacement SCR Removal and Replacement Procedure for the 1/2 Inch Wide Spring Figure F.21 1/2 Wide Leaf SpringClamping Procedure For 1/4-28 CAP Screws Clamping Procedure For 1/4-20 CAP ScrewsProcedure for Inch Wide SpringAfter Replacing the SCRs Mounting of Stud Type Diodes To Aluminum Heat Sinks Mounting of Stud Type Diodes To Aluminum Heat SinksMain Transformer Removal and Replacement Main Transformer Removal & Replacement Removal of Lift BailRemoval of Choke and TOP Iron Assembly Figure F.26 Choke RemovalReassembly of Transformer Coils Figure F.27 Epoxy MIX Application AreasFigure F.28 Coil Lead Placement Figure F.30 Primary Thermostat Location Reassembling the Main Transformer Into the Machine Reassemble the Lift BailRetest After Repair Input Idle Amps and WattsOpen Circuit Voltages Welding Output Load TestIdealarc CV-400 Electrical Diagrams Section GWiring Diagram Codes 10084, 10085 Wiring Diagram Code Control PC Board G2629-1 Layout Control PC Board G2629-1 Schematic Snubber Snubber PC Board M15370-3 Schematic Idealarc CV-400
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