Lincoln Electric SVM179-B service manual G5683-2, LN-25 PRO Analog

Page 89

G-11

ElECTriCal DiaGrams

G-11

sChEmaTiC - lN-25 prO - COmplETE maChiNE CODEs 11620, 11621, 11716, 11717 - (G5683-2) pG2

 

2-G5683

ENGINEERING CONTROLLED CHANGE DETAIL: RELEASED A.03 FROM "X".

 

 

MANUFACTURER: No

 

LN-25 PRO WIRE FEEDER

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TIMER P. C. BOARD CIRCUIT

Timer Board Summary

Has potentiometers for burnback, postflow and preflow.

Preflow range is 0 to 10 sec.

Burnback range is 0 to 0.25 sec.

Postflow range is 0.25 to 10 sec.

Receives “Gas Flow Enable” signal.

Outputs 100 msec pulses to turn Gas Flow On, Gas Flow Off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(LOCATED BEHIND WIRE

 

 

 

 

 

 

 

 

 

 

 

 

 

(LOCATED ON CASE FRONT)

REEL COVER)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADJUST KNOB

 

 

 

 

 

ADJUST KNOB

 

 

 

 

 

 

 

 

 

 

 

 

ADJUST KNOB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5V

 

 

 

CW= +5

 

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CCW= 0V

 

 

 

 

 

 

10K

 

 

 

 

 

 

 

 

BURNBACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POSTFLOW

 

 

 

 

 

 

 

 

 

 

 

PREFLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POT.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POT.

 

 

 

 

 

 

 

 

 

COM

 

POT.

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15V SIGNAL

 

 

 

 

 

 

 

 

 

 

 

15V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15 ms PULSES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOGGLE GAS FLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIMER KIT

 

 

 

 

 

 

MICROCONTROLLER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON/OFF

 

 

 

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(OPTIONAL)

 

 

 

 

 

 

 

 

GAS FLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5V SIGNAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCHEMATIC =

 

 

 

 

 

 

 

 

 

 

 

ENABLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M21342

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J60-8

J60-7

J60-6

J60-5

J60-4

J60-3

J60-2

J60-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

607

 

 

 

 

 

 

 

 

 

 

 

NOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

608

606A

605

 

4B

509B

601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO CONTROL BD. (VIA P60 plug)

PROPRIETARY & CONFIDENTIAL:THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED

TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.

 

MANUFACTURING TOLERANCE PER E2056

CONTROL: CLEVELAND

SCALE:

EQUIPMENT TYPE:

 

LN-25 PRO ANALOG

2

2

 

UNLESS OTHERWISE SPECIFIED TOLERANCE:

 

 

ON 2 PLACE DECIMALS IS ± .02 in. (± 0.5 mm)

 

 

NONE

 

 

 

PAGE ___ OF ___

 

DRAWN BY:

tpearn

 

 

 

 

ON 3 PLACE DECIMALS IS ± .002 in. (± 0.05 mm)

IF PRINTED

SUBJECT:

 

 

MACHINE SCHEMATIC

DOCUMENT

 

DOCUMENT

 

MATERIAL TOLERANCE ("t") TO AGREE

ENGINEER:

ENYEDY

@ A2 SIZE

 

 

NUMBER:

 

REVISION:

 

ON ALL ANGLES IS ± .5 OF A DEGREE

 

 

 

 

 

 

 

 

 

 

G5683-2

 

A

 

WITH PUBLISHED STANDARDS.

 

 

 

UNITS:

MATERIAL

UF

APPROVAL

11/6/2009

PROJECT

CRM40943

REFERENCE:

 

 

 

 

 

 

DO NOT SCALE THIS DRAWING

 

APPROVED:

BS

INCH

DISPOSITION:

DATE:

NUMBER:

G5683-1

 

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

lN-25™ prO

Page 88 Page 90
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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 High Frequency Protection Safety PrecautionsLocation ELECTRIC SHOCK can KillCable Connections Wire Drive ConfigurationShielding GAS Connection Changing the GUN Receiver BushingWire 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 WeldingWire Feed Speed Range Switch K2613-5 and K2613-7 only PIN GUN Trigger Connector See Figure B.1Work Sense Lead Thermal LED, Motor Overload See Figure B.1Figure B.4 Internal ControlsCV/CC Switch Step Trigger Interlock SwitchInternal Controls Description Cold Feed PushbuttonPreflow Timer Optional PREFLOW, Burnback Postflow Timer KIT K2330-2Figure B.5 Rear ControlsGAS Purge Pushbutton POWER-UP SequenceFlow Meter ScfhLN-25 PRO Table of Contents Accessories Section Factory Installed Equipment AccessoriesWire Type Drive Roll KitsAccessories Accessories K435 Spindle Adapter, for mounting Installation of the K590-6 Water Cooling KIT Table of Contents Maintenance Section Routine Maintenance MaintenancePeriodic Maintenance Calibration SpecificationBoard 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 Retest After Repair SET UPRetest a machine Operation VerificationLN-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
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