Lincoln Electric SVM146-A service manual PC Board Assembly Power Board

Page 105

TOC

TOC

G-7

ELECTRICAL DIAGRAMS

G-7

PC BOARD ASSEMBLY - POWER BOARD

 

 

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~.04

9.00

B208

B203

B206

B205

 

 

 

 

R12

R18

R19

R17

R20

R16

D1

A1

C1

R8

R11

R7

R10

R6

R9

R5

C2

R21

R15

R22

DZ5

DZ6

 

C3

 

A2

C4

 

 

D2

PRO-CUT 80

G3440-1

POWER

B209

 

DZ1

R3

 

R1

DZ3

 

 

R13

 

 

 

DZ2

 

 

 

 

R4

R2

CR1

DZ4 R14

 

 

 

 

DZ7

R26

R25

 

R27

CR2

 

 

 

R24

 

 

Q1

R23

 

 

 

 

 

 

R44

ITEM

 

REQ'D

PART NO.

 

DESCRIPTION

C1,C4,C9,C12

)

 

4

)

S20500-7

)

.047/1600

C2,C3,C10,C11

)

 

4

)

S16668-6

)

4700pF/50

C5,C15,C18

)

 

3

)

S16668-9

)

150pF/100

C6,C8,C19

)

 

3

)

S16668-5

)

.022/50

C7,C21

)

 

2

)

S13490-93

)

27/35

C13

)

 

1

)

S13490-83

)

50/25V

C14,C16

)

 

2

)

S13490-42

)

1.0/35

C17

)

 

1

)

S13490-39

)

18/15

C20

)

 

1

)

S13490-130

)

.27/50

CR1,CR2

)

 

2

)

S14293-18

)

DPST RELAY

D1,D2,D8,D9

)

 

4

)

T12705-44

)

DIODE 1000V/1A

D3,D4,D5,D6,D7,D15,D16,D18

)

13

)

T12199-1

)

1N4004

D20,D21,D22,D23,D24

 

 

 

 

 

 

 

DZ1,DZ3,DZ5,DZ6,DZ8,DZ10

)

9

)

T12702-29

)

1N4744A

DZ12,DZ13,DZ14

 

 

 

 

 

 

 

DZ2,DZ4,DZ9,DZ11

)

 

4

)

T12702-40

)

1N4735

DZ7,DZ15,DZ16

)

 

3

)

T12702-19

)

1N4742A

J10

)

 

1

)

S20351-6

)

HEADER

OCI1,OCI3,OCI4

)

 

3

)

S15000-22

)

OPTO ISOLATOR

Q1

)

 

1

)

T12704-75

)

FET (SS)

Q2,Q3,Q4,Q5

)

 

4

)

T12704-73

)

IC PKG MOSFET (SS)

R1,R2,R3,R4

)

 

4

)

S24376-2

)

40/10W

R5,R6,R7,R8,R15,R16,R17

)

19

)

S19400-1001

)

1K 1/4W

R18,R33,R37,R54,R55,R56

 

 

 

 

 

 

R57,R64,R65,R66,R67,R97

 

 

 

 

 

 

R9,R10,R11,R12,R13,R14,R19

)

20

)

S19400-10R0

)

10 1/4W

R20,R21,R22,R58,R59,R60

 

 

 

 

 

 

R61,R62,R63,R68,R69,R70

 

 

 

 

 

 

R71

 

 

 

 

 

 

 

R23,R24,R25,R26,R34,R43

)

10

)

S19400-1503

)

150K 1/4W

R51,R53,R98,R107

 

 

 

 

 

 

 

R27

)

 

1

)

S19400-1000

)

100 1/4W

R28,R36,R38,R44,R47,R87

)

10

)

S19400-2213

)

221K 1/4W

R88,R96,R118,R119

 

 

 

 

 

 

 

R29,R30,R31,R32,R73,R74

)

12

)

T14648-19

)

1K 5W

R75,R76,R77,R78,R80,R81

 

 

 

 

 

 

R35

)

 

1

)

S19400-3162

)

31.6K 1/4W

R39,R46,R49,R91,R109

)

5

)

S19400-1002

)

10K 1/4W

R40

)

 

1

)

S19400-2432

)

24.3K 1/4W

R41

)

 

1

)

S19400-5620

)

562 1/4W

R42

)

 

1

)

S19400-2801

)

2.8K 1/4W

R45,R48,R94

)

 

3

)

S19400-7681

)

7.68K 1/4W

R50,R52,R101,R103

)

 

4

)

S19400-6191

)

6.19K 1/4W

R72,R79

)

 

2

)

S19400-2001

)

2.0K 1/4W

R82,R83,R84,R85

)

 

4

)

S19400-1004

)

1M 1/4W

R89,R90,R92

)

 

3

)

S19400-2212

)

22.1K 1/4W

R93

)

 

1

)

S19400-1822

)

18.2K 1/4W

R95

)

 

1

)

S19400-4751

)

4.75K

R99,R108

)

 

2

)

S19400-3323

)

332K 1/4W

R100

)

 

1

)

S19400-1652

)

16.5K 1/4W

Return to Section TOC

Return to Master TOC

B201

B207

B202

R32 R31

 

 

 

 

R61

R67

R68

R66

R69

R65

R81

R80

R30

R29

 

D8

A3

C9

R57

R60

R56

R59

R55

R58

R54

R70

R64

R71

 

 

 

C11

DZ8

DZ10

R62

DZ9

C10

R72

R79

R63

DZ11

DZ12

DZ13

 

DZ15

 

 

R87

 

 

 

 

R47

 

 

 

R40

 

 

 

R89

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R88

 

 

 

 

D15

 

 

 

 

R46

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C7

 

 

C13

 

 

 

 

 

 

 

 

 

X1

 

C21

 

 

 

D5

R83

R45

 

 

 

 

 

C5

R28

R34

C8

 

 

 

 

 

D16

 

X2

 

 

 

 

 

 

 

 

 

 

R93

 

 

 

 

 

 

 

 

 

 

R52

 

 

R50

 

 

 

 

 

 

 

 

OCI1

 

 

 

 

R82

 

 

 

 

 

 

 

 

 

 

R43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D4

 

 

 

 

 

 

 

 

 

 

 

R33

 

 

 

 

 

 

 

R85

R94

 

 

 

 

 

D6

 

 

R92

 

 

 

 

 

R41

 

 

R98

 

 

C16

 

 

 

 

 

 

 

R42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R49

 

 

D18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R48

 

 

D3

 

 

 

R37

 

R53

 

 

 

 

 

 

 

 

 

 

 

 

R39

 

 

 

D7

 

 

 

 

 

 

 

D23

 

 

R104

 

 

R51

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R105

 

 

 

 

 

 

R101

R102

 

 

 

 

 

 

 

 

 

 

R107

C19

 

 

 

 

X3

 

R106

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R108

 

 

 

 

 

 

 

 

 

 

R99

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R100

 

 

R109

R116

R117

R111

R103

 

R110

R114

D24

 

DZ14

 

 

C20

 

R115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R119

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q4

Q5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R118

 

 

 

 

 

 

 

 

R84

 

OCI3

 

 

R91

C17

R96

C18

 

R95

 

OCI4

 

Q3

 

C6R90

D21Q2

 

R97

D20

 

 

J10

R38

C15

 

T1

R102,R110

)

2

)

S19400-1502

)

15K 1/4W

R104

)

1

)

S19400-1372

)

13.7K 1/4W

R105

)

1

)

S19400-1821

)

1.82K 1/4W

R106

)

1

)

S19400-2941

)

2.94K 1/4W

R111

)

1

)

T12300-79

)

1 WATT 1 OHM 1% RESISTOR

R112,R113

)

2

)

S19400-2211

)

2.21K 1/4W

R114

)

1

)

S19400-4752

)

47.5K 1/4W

R115

)

1

)

T10812-41

)

10K 1/2W TRIMMER

R116,R117

)

2

)

S19400-3321

)

3.32K 1/4W

T1

)

1

)

S13000-46

)

TRANSFORMER

X1,X3

)

2

)

S15128-4

)

IC,LM224,OP-AMP

X2

)

1

)

S15128-10

)

IC,431,VOLTAGE REF.

CAPACITORS = MFD/VOLTS

RESISTORS = OHMS

Section TOC

Master TOC

0

R78

B204

R77

R76

A4

C12

 

D9

 

R75

R73

R112

R36

R113

DZ16

C14

R35

R74

3-19-99

Return to

0

12.00

~.04

G

 

 

 

3440-1B

NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro- vided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.

PRO-CUT 80

Page 104 Page 106
Image 105
Page 104 Page 106
Contents PRO-CUT California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Technical Specifications PRO-CUT InstallationGAS Requirements Technical Specifications Cont’d PRO-CUTSelect Suitable Location Safety PrecautionsLifting and Moving StackingInput Wire and Fuse Size Input Power Cord Connector InstallationInput Connections Ground ConnectionReconnect Procedure Reconnect ProcedureReturn Return to Section TOC GAS Input ConnectionsTorch Connection Output ConnectionsTable of Contents Operation Section Safety Instructions OPERATIONB-2Operating Instructions Design Features Advantages Operational Features and ControlsOperation General DescriptionCutting Capability Consumable LifeLimitations Controls and Settings Cutting OperationPilot ARC Considerations Safety Status Indicator Procedure Recommendations Preheat Temperature forPlasma Cutting User ResponsibilitySuggestions for Extra Utility from the PRO-CUT System Thick Sections of MetalARC Start ARC InitiatedARC Voltage PRO-CUT Accessories Table of ContentsGeneral Options Accessories Table of Contents Maintenance Electric Shock can kill Input Filter Capacitor Discharge ProcedurePeriodic Maintenance Routine MaintenanceMaintenance Table of Contents Theory of Operation Section Theory of Operation Input Line VOLTAGE, Switch and Main TransformerPrecharge and Protection Power BoardFigure E.4 Main Transformer Main TransformerFigure E.5 Plasma Output Board and Torch Output Board and TorchFigure E.6 Control and Display Boards Control and Display BoardsProtection Circuits Overload ProtectionThermal Protection Insulated Gate Bipolar Transistor Igbt Operation Pulse Width Modulation Minimum OutputMaximum Output PRO-CUT Table of Contents Troubleshooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairPC Board can be damaged by static electricity PC Board Troubleshooting ProceduresOutput Problems Troubleshooting GuideFunction Problems Air begins to flow when Make sure the air pressure is Cutting Problems LED Function Problems Troubleshooting Guide Materials Needed DescriptionFigure F.1 Location of Input Filter Capacitor Terminals Input Filter Capacitor Discharge ProcedureInput Rectifier Test Input Rectifier Test Test ProcedureTest Point Terminals Analog Meter X10 Range Primary Power Board Resistance Test Capacitor Voltage Test Capacitor Voltage Test Primary Power Board Resistance TestBoard Removal and Replacement Procedure Test Procedure Table F.3 Capacitor Voltages Output Power Board Resistance Test Figure F.4 Output Power Board Lead Locations Output Power Board Resistance TestOutput Power Board Removal and Replacement Procedure Torch Continuity and Solenoid Test Torch Continuity and Solenoid Test Test ProcedureAIR/GAS Solenoid Test Figure F.6 AIR Solenoid AIR/GAS Solenoid TestT2 Auxiliary Transformer Test T2 Auxiliary Transformer Test ProcedureYellow 1J21 Yellow 7J21 115VAC Test Point Expected VoltageTrigger Circuit Test Simplified Trigger Circuit Trigger Circuit TestPerform the Input Filter Capacitor Discharge Procedure PRO-CUT 80 Output Board LED Definitions Figure F.11 Control Board LEDs Control Board LED DefinitionsLOW Voltage Circuit Test T2 Auxiliary Transformer LOW Voltage Circuit TestFigure F.12, Low Voltage Circuit Diagram Test Point Figure F.15 Display Board Test Points Control Board Removal and Replacement Screws Control Board Removal and ReplacementFigure F.18 Control Board Removal from Mounting Pins Display Board Removal and Replacement Figure F.19 Case Front Screw Removal Display Board Removal & ReplacementFigure F.20 Display Board Removal Output Power Board Removal and Replacement Output Power Board Output Power Board Removal & ReplacementFigure F.22 Output Board Lead Locations Replacement Procedure This procedure takes approximately 40 minutes to perform Primary Power Board and Filter Capacitor Removal and ReplacementRemoval Procedure Heatsink Mounting Screws Socket Head Capacitor Removal Capacitor Replacement and P.C. Board ReplacementInput Rectifier Bridge Removal and Replacement Figure F.25 Input Rectifier Lead Locations PRO-CUT Input Rectifier Bridge Removal and ReplacementTroubleshooting & Repair Input Idle Amps and Watts Retest After RepairPRO-CUT Electrical Diagrams Wiring Diagram PRO CUT 2ELECTRICAL Diagrams G-2Cutting Current Setpoint Local Schematic Control PC BoardPRO-CUT 80 Control PC Board Assembly Control Board Code 10574 onlyG3560-1 PC Board Assembly Control Board Code 10577 & 10578 onlySchematic Power PC Board 6ELECTRICAL DIAGRAMSG-6Power PC Board Assembly Power BoardElectrical Reqd Identification PC Board Assembly Output BoardFilename Schematic Display PC BoardLight BAR,LED,GREEN PC Board Assembly Display BoardSVM Error Reporting Form

SVM146-A specifications

Lincoln Electric's SVM146-A is a versatile and powerful multi-process welding machine designed for professionals in various industries. Known for its robustness and reliability, this machine excels in both performance and user-friendly features, making it a popular choice among welders.

One of the standout features of the SVM146-A is its multi-process capability, allowing users to perform MIG, TIG, and stick welding using a single unit. This versatility is enhanced by Lincoln Electric's innovative Auto-Set technology, which automatically adjusts the machine's settings based on the selected process and materials being welded. This feature significantly reduces the time spent on setup and helps ensure optimal weld quality, even for less experienced operators.

The SVM146-A is powered by a reliable inverter design, which provides greater efficiency compared to traditional transformer-based machines. This compact and lightweight design allows for easy transport, making it ideal for job sites or remote locations. The inverter technology also contributes to enhanced arc stability and better overall performance, providing high-quality welds in less time.

Another key characteristic of this welding machine is its robust construction, designed to withstand the rigors of heavy industrial use. The SVM146-A features a durable chassis and control panel, ensuring longevity and reliability under challenging working conditions. Additionally, its intuitive interface allows users to easily navigate settings and make adjustments as needed.

Safety is a paramount concern in welding applications, and the SVM146-A is equipped with several safety features, including over-temperature and over-voltage protection, ensuring that the machine operates safely even in demanding environments. It also features a start inhibit system, preventing the machine from being started under unsafe conditions.

The SVM146-A is compatible with a variety of welding accessories and consumables, enhancing its flexibility and usability across different applications. Whether it’s automotive repair, heavy fabrication, or maintenance work, this welding machine adapts to various tasks, making it a valuable addition to any professional's toolkit.

In conclusion, Lincoln Electric's SVM146-A stands out as a multi-process welding machine that combines advanced technology, robust design, and user-friendly features. It is engineered for performance and reliability, making it an excellent investment for professionals dedicated to achieving high-quality welds.
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