Lincoln Electric SVM101-B service manual Mode Switch, Full Range Is Is Very Soft, 10 Is Very Crisp

Page 15

B-3

OPERATION

B-3

 

 

 

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MODE SWITCH

GTAW Optimized for both scratch start and Hi- Freq kit use.

CCSOFT Best for EXX18 thru EXX28 stick elec- trodes.

CCCrisp Use this mode for stick welding with EXX10 thru EXX14 electrodes. Non- welding applications such as resistive heating or output tests with resistive loads should be done in this mode with Arc Force Control set to minimum.

CV FCAW This setting has been optimized for Innershield® and Outershield® flux-cored electrodes.

CV GMAW Short circuit, glob and spray transfer solid wire and gas welding are done in this mode. Low end procedures, less than 16V, may operate better in the FCAW mode.

SMAW

CRISPFCAW

SMAW

SOFTGMAW

GTAW

OUTPUT TERMINALS SWITCH

For processes and equipment that require energized machine terminals (stick, TIG, air-carbon arc cutting or hot tip LN-25), set the Output Terminals Switch to “ON” position.

Set to the REMOTE (OFF) position when using LN-25 with K431/K432 or K624-1 options or other wirefeeders which allow the gun trigger to energize the welding ter- minals.

ON

OUTPUT

TERMINALS

REMOTE

ARC FORCE/INDUCTANCE CONTROL

This control functions in all modes except GTAW. For

CCmodes, this control acts as an Arc Force adjust- ment. The arc is soft at the minimum settings and more forceful or driving at the maximum settings. Higher spatter levels may be present at the maximum set- tings.

For CV modes, this control will set the degree of “pinch effect” which predominantly affects short circuit trans- fer. In FCAW, the maximum setting is generally pre- ferred. With GMAW, the upper half of the range is pre- ferred with CO2 or high content CO2 mixed gases. The lower half is for other inert gas mixes.

RECOMMENDED SETTINGS FOR SELECTED

APPLICATIONS

Full Range Is 1-10,

1 Is Very Soft, 10 Is Very Crisp

 

 

 

Nominal

Recommended

 

Mode

Process

Setting

Adjustment Range

 

 

 

 

 

 

CC SMAW 1

EXX18 thru

5

1 (gentle, may stick) to 9

 

 

EXX28 stick

 

(forceful, more spatter)

 

 

 

 

 

CC SMAW 2

EXX10 thru

6

3 to 10

 

 

EXX14 stick

 

 

 

 

 

Air Carbon Arc

1

None

 

 

Cutting

 

 

 

 

 

 

 

 

 

CV FCAW

Innershield or

10

None

 

 

Outershield

 

 

 

 

 

Air Carbon Arc

1

None

 

 

Cutting

 

 

 

 

 

 

 

 

 

 

CV GMAW*

CO2 or 25% CO2

7.5

5 to 10

 

 

or similar

 

 

 

 

 

gas mixes

 

 

 

 

 

98% Ar-2% O2Ar,

5

1 to 10

 

 

90% He-7.5% Ar

 

 

 

 

 

2.5% CO2 and

 

 

 

 

 

other

 

 

 

 

 

predominantly

 

 

 

 

 

inert gases

 

 

 

 

 

 

 

 

 

*1 = Lowest pinch, highest inductance and least spatter.

10 = Highest pinch, lowest inductance and most spatter.

V300-I

Image 15
Contents Invertec Safety Electric Shock can kill ARC Rays can burnFumes and Gases can be dangerous Iii SafetyWelding Sparks can cause fire or explosion Cylinder may explode if damagedSûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Table of Contents Installation SectionSection A-1 Three Phase Single Phase InstallationLocation 3INSTALLATIONA-3Product Description Electrical Installation Input Voltage SetupThree Phase Input Power Input ConnectionConnection of Wire Feeders to the Invertec Single Phase InputRemote Control of Invertec K900-1 DC TIG Starter ConnectionParallel Operation 6INSTALLATIONA-6 Output CablesQuick Disconnect Plugs Section B-1 Operation SectionControl Function / Operation OperationOperating Instructions Duty CycleFull Range Is Is Very Soft, 10 Is Very Crisp Mode SwitchAuxiliary Power Meter Polarity SwitchSection C-1 Accessories SectionOptions / Accessories AccessoriesSection D-1 Maintenance SectionInput Filter Capacitor Discharge Procedure MaintenanceOverload Protection Preventive MaintenanceFigure D.2 Location of Maintenance Components Section E-1 Theory of Operation SectionInput Line Voltage & Auxiliary Transformer Theory of OperationReturn to Return to Section TOC Precharge & Protection CircuitsFigure E-4 ---SWITCH Circuits & Transformer Switch BoardsFigure E-5 --OUTPUT & Control Circuits Output and Control CircuitsPassive Pulse Width Modulation Minimum OutputMaximum Output Protective Circuits Overload ProtectionThermal Protection Section F-1 Troubleshooting & Repair SectionHOW to USE Troubleshooting Guide Troubleshooting & RepairPC Board Troubleshooting Procedures Additional Information Oscilloscope Warning Input Filter Capacitor CONDITION- INGMatched Parts Department Feeding ProblemsFeeding Problems See Input Rectifier test See Output Diodes test See Switch Board test V300-I Input Filter Capacitor Discharge Procedure 11TROUBLESHOOTING & REPAIRF-11Figure F.I Location of Input Filter Capacitor Terminals Input Filter Capacitor Discharge ProcedureOutput Pilot Circuit Test Test Procedure J2 J4 J3 G2527V300-I Protection Board Output Test Turn Power Switch OFF Test Procedure313 306 J15 275F 311 V300-I Figure F.6 Inserting Probes ProtectionCapacitor Balance Test Static Capacitor Test 912 V300-I Switch Board Test Switch Board Test Switch Board Test Table F.3 Snubber Resistor Test Check Test Result Conclusion Next Test Step Repair Action Snubber Resistor TestOutput Diode Test Output Diode Test Test ProcedureInput Rectifier Test Table F.5 Points StepsProbe Acceptable Meter Reading Overcurrent Protection Current Trigger Test 302 G2527 Control J1 275D Overcurrent Protection Current Trigger TestControl Overvoltage Protection DC Trigger Circuit Test Figure F.16 PC Boards Removed Overvoltage Protection DC Trigger Circuit Test306 275F 309 310 #301 #305 1J8 #311 1J14 6J6 #302#313 #275D 3J8 2J14 1J6Thermal Protection AC Trigger Circuit Thermal Protection AC Trigger Circuit Figure F.20 PC Boards Moved for AccessFigure F.21 Thermal Protection AC Trigger Circuit V300-I Power Board Test Power Board Test Test aTest B Figure F.23 Power Board Test Points Simplified Trigger Circuit Capacitor Removal and Replacement Procedure Procedure Capacitor Removal and ReplacementFigure F.27 -- Removing Capacitor Nuts Figure F.27 Switch Board Removal and Replacement Procedure Procedure Switch Board ReplacementTest After Switch Board or Capacitor Replacement Perform Retest After Repair Test After Switch Board or Capacitor ReplacementOutput Diode Replacement Procedure Output Diode Replacement Procedure 60TROUBLESHOOTING & REPAIRF-60Procedure Diode Modules 61TROUBLESHOOTING & REPAIRF-61Min. Acceptable Max. All Modes V300-I V300-PRO Retest After RepairOCV at rated Input V300-PRO OutputSection G-1 Electrical Diagrams Section#0# Wiring Diagram Entire Machine Code 9826 L8657Return Wiring Diagram Entire Machine Code 9827 L8938Wiring Diagram Entire Machine Code 10036 L9299 $ $ Wiring Diagram Entire Machine Code 10037 L9300Section Wiring Diagram Entire Machine Code 10132 L9567Wiring Diagram Entire Machine Code 10133 L9568 Wiring Diagram Code$& $ Wiring Diagram Entire Machine Code 10258 L10189Wiring Diagram Entire Machine Code 10336, 10450 L10205 V300-I Wiring Diagram European# . $ #$ !#$ #! %&$ Schematic Entire MachineSchematic Driver PC Board S20216 Identification PC Board Assembly Driver L8660Schematic Driver PC Board S20799 Description PC Board Assembly DriverSchematic Switch PC Board L8440 CAPACITOR, Cemo 2700P 50V 5% PC Board Assembly Switch L8441Schematic Switch PC Board L10956 Reqd Identification PC Board Assembly Switch L10958-1Schematic Control PC Board G2525 Electrical Diagrams CAPACITOR, Cemo 150P Schematic Protection PC Board M16097 DZ1 PC Board Assembly Protection L7915-2Schematic Power PC Board M16018 VOLT. REG. & Heat Sink Asbly PC Board Assembly Power L8033-7