Lincoln Electric SVM179-B service manual Work

Page 95

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G-17

ElECTriCal DiaGrams

G-17

sChEmaTiC - lN-25 prO CONTrOl pC BOarD - CODEs 11387, 11388, 11507, 11508 (G4745-1) pG 4

 

 

 

 

 

 

 

D50+15V2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

0.2A

 

 

 

 

 

 

 

 

 

 

 

 

D18

 

2+5V

 

 

 

 

 

 

 

30V-115V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRODE

221KR180

221KR175

 

 

 

221KR176

221KR177

 

 

 

 

1D51

 

 

 

 

3

0.2A

1

 

 

GND

 

 

 

 

2

3R182.32K

 

 

 

3

2R184.21K

 

 

30V

 

 

 

POLARITY_SENSE

 

 

 

 

 

 

X6

33074ADT1

 

 

 

2070V.2A

 

 

221K

C70.1uF

 

 

WORK

R174

R173

GND

3

R179

R178

 

 

 

 

 

 

R181

 

 

50V

 

 

 

 

 

1D52

3

 

 

 

 

20KR170.1W

 

 

GND

 

+15V2

METER_COMP

 

221K

+15V221K2D14

3

 

 

221K

221K

 

 

 

R172

9

 

 

 

 

 

D19

 

 

 

.2A

 

6

X6

 

R183

0.2A

 

 

 

X6

 

8

 

 

3

 

 

 

 

30V

 

 

 

2

70V

 

 

C71

10K.1W

 

 

 

 

0.2A

 

 

 

-15V1

 

 

GND5

 

33074ADT

3.32K

 

 

475

10

 

 

33074ADT

 

30V

 

 

 

 

 

 

R171

50V.1uF

 

 

 

 

 

-115V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GENERALINFORMATION

 

 

 

R

 

 

LASTNO.USED

 

 

 

 

 

 

 

ELECTRICALSYMBOLSPERE137

 

LABELS

C

 

_

SEEPAGE1

 

 

 

 

 

 

CAPACITORS=

MFD(.022/50VUNLESS

D-

 

 

 

 

 

 

 

 

 

 

RESISTORS=Ohms(

1/4W

UNLESSOTHERWISEOTHERWISESPECIFIED)

 

 

 

 

 

 

 

 

 

 

 

 

DIODES=

1A,400V

(UNLESSOTHERWISESPECIFIED)

 

SUPPLYWER

 

VOLTAGENET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLYSOURCEPOINT

SINCECOMPONENS

&CIRCUITRYCONFIDENTIAL:TOOTHERPARTIES,ORUSEDFORANYPURPOSEWITHOUTTHEEXPRESSWRITTENPERMISSIONOFLINCOLNGLOBAL,INC.

05

PROPRIETARYPRINTEDCIRCUITBARDMAY

DESIGNINFORMATION

EQUIPMENTTYPE:

FLEXIBLEPOWERFEEDER

CFRAMEO ON

 

PAGE04OF

 

 

 

 

 

 

 

ARCVOLTSREAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EARTHGROUNDCONNECTIONNECTION

 

ABILITYD

AFFECTINGMYNOTSHOWTHEEXCT

HISDOCUMENTCONTAINSPROPRIETARYINFORMATIONOWNEDBYLINCOLNGLOBAL,INC.ANDMAYNOTBEDUPLICATED,COMMUNICATED

ENGINEER:

JPZ

REFERENCE:

SUBJECT:

 

SCHEMATIC,CONTROLPCB

NUMBER:

 

REVISIO:

WITHOUT

OF

COMPLETEBOAD,THIS

DRAWNBY:

JPZ

9/24/2009

 

 

 

NADATE:

 

 

DOCUMENT

DOCUMENT

 

 

THEINTERCHANGE-

DISPOSITION:

9-12-2008 NUMBER:

CRM39801

HAVIAGRAMNACOMMONCODENUMBER.

APPROVED:

 

---------

G

4745-1H0

 

A

COMPONETSORCIRCUITRYOFCONTROLS

 

 

 

MATERIAL

 

APPROVAL

PROJECT

 

 

 

 

 

 

 

 

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

lN-25™ prO

Image 95
Contents LN-25PRO Wire Feeder LN-25 PRO SafetyElectric Shock can kill ARC Rays can burn Iii Welding CuttingFor Electrically Sûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Table of Contents Installation Section Installation ELECTRIC SHOCK can Kill Safety PrecautionsHigh Frequency Protection LocationChanging the GUN Receiver Bushing Wire Drive ConfigurationCable Connections Shielding GAS ConnectionWire Guides Procedure to Install Drive RollsGUN Connection Pressure ARM AdjustmentLoading Spools of Wire Description Power Source to LN-25 PRO Cable Connection DiagramsAcross the ARC SET-UPS Figure A.7 Table of Contents Operation Section Operation Safety PrecautionsGeneral Description Analog Voltmeter Wire Feed Speed KnobDescription Figure B.2 Wire Feed Speed, CC Operation See Figure B.2 orTable B.2 VV CC Wire Speed Setting Figure B-3 Constant Current VS Constant Voltage Wire WeldingThermal LED, Motor Overload See Figure B.1 PIN GUN Trigger Connector See Figure B.1Wire Feed Speed Range Switch K2613-5 and K2613-7 only Work Sense LeadFigure B.4 Internal ControlsCold Feed Pushbutton Step Trigger Interlock SwitchCV/CC Switch Internal Controls DescriptionPreflow Timer Optional PREFLOW, Burnback Postflow Timer KIT K2330-2Figure B.5 Rear ControlsScfh POWER-UP SequenceGAS Purge Pushbutton Flow MeterLN-25 PRO Table of Contents Accessories Section Drive Roll Kits AccessoriesFactory Installed Equipment Wire TypeAccessories Accessories K435 Spindle Adapter, for mounting Installation of the K590-6 Water Cooling KIT Table of Contents Maintenance Section Calibration Specification MaintenanceRoutine Maintenance Periodic MaintenanceBoard Wire Feed SpeedCover Figure D.3. Major Component Location Control Board 1TABLE of CONTENTS-THEORY of Operation Section E-1Figure E.2 General Description Theory of OperationTRIGGER CIRCUIT Input PowerFigure E.4 Feedback & Control Circuits Feedback and Control CIR- CuitsFigure E.5 Optional Circuits & Digital Display Board Optional CircuitsLN-25 PRO Table of Contents Troubleshooting & Repair HOW to USE Troubleshooting Guide Troubleshooting & RepairPC Board Troubleshooting Procedures Fault Code Description Possible Adjustment Motor Solenoid Test Recommended Course of Action Problems SymptomsPossible Areas Misadjustments LN-25 PRO Materials Needed Case Removal ProcedureTest Description Figure F.1 Case Removal ProcedureGAS Solenoid Test GAS Solenoid Control BOX Control BOX Cover Contactor Test Control BOX Contactor Drive Motor and Tach Feedback Test Case Control BOX Assembly Motor Overload Test Figure F.5 Control BOX Assembly Contactor Removal and Replacement Procedure Figure F.6 Control BOX Removal ProcedureFigure F.7 Buss BAR and Mounting Block Replacement ProcedureLN-25 PRO Front Panel Removal and Replacement Procedure Front Panel Troubleshooting & Repair Gas Hose Control BOX Wire Drive Panel Drive Gear Cover LN-25 PRO PC Board Removal and Replacement Procedure Figure F.11 Control PC Board Location PC BOARD Removal and Replacement ProcedureGAS Solenoid Removal and Replacement Procedure GAS Solenoid GAS Hose Control BOX Lock NUT Operation Verification SET UPRetest After Repair Retest a machineLN-25 PRO Table of Contents Diagram Section Wiring Diagram LN-25 PRO WiriNG DiaGram lN-25 prO CODEs 11507, 11508 G5681-1 Wiring DIAGRAM- LN-25 PRO Analog WiriNG DiaGram lN-25 prO CODEs 11746, 11747 G5681-3 G5683 LN-25 PRO Wire FeederLN-25 PRO Wire Feeder ElECTriCal DiaGrams G5683-1 Pushbutton LN-25 PRO Analog G5683-2G5683 G5683-3 Circuitryconfidential Equipmenttype Xres RXD Work 624 4783-1C0 Flexiblepowerfeede R 50V OF05 Circuitryconfidential S27505-1B0 R2 CW