Lincoln Electric V155-S service manual Schematic Control PC Board, U1A

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G-10

ELECTRICAL DIAGRAMS

G-10

SCHEMATIC - CONTROL PC BOARD

1

+15V

JP1

R2

+15V

+15V

4k7

FAN_ONn

1

2

0603

+15V

Inputerr

CEVRD

+15V

3

4

1%

Voutm

DUTY

1

R1

8

U4C

8

U2C

+15V

5

6

GND

7

8

VENn

2

Q1

10k

C27

C18

GND

9

10

BC817

0603

100nF

100nF

ERRORn

+5V

11

12

3

SOT23

1%

R32

50V

50V

+15V

R4

13

14

R5

1k2

LM358AM

0805

LM358AM

0805

GND

GND

15

16

5k6

4k7

1206

4

SO8

4

SO8

0603

1

0603

1%

+15V

1%

R10

1%

HEADER 8X2 90° P/I

+15V

THRCE35

+15V

47R

2

PTCE

1

2

0603

D9

1%

3

Q2

R7

D1

C1

R8

YELLOW

BC817

5k6

R38

D 5mm

BAT54S

100nF

R6

15k

R12

SOT23

0603

4k7

SOT23

50V

4k7

0603

100k

11

C2

R15

D3

1%

1

0603

U1B

0805

0603

1%

0603

100nF

100k

LL4148

D2

1%

3

4

LM324

1%

1%

2

50V

0603

MINIMELF

LL4148

2

THLED

+15V

Voutm

Voutfilt

5

SO14

-

0805

1%

MINIMELF

3 Q4

+

1

R14

R65

7

Vout

3

+

BC817

R41

+15V

6

-

SOT23

5k6

10k

100k

R66

C5

R17

C4

R20

U1A

4

R21

C6

0603

R67

R13

0603

0603

120k

820pF

11

2k2

100nF

LM324

4k7

220pF

1%

1%

1%

0603

0603

0805

50V

10k

SO14

0603

50V

5k6

390k

1%

50V

1%

0805

0603

1%

0603

0603

0603

R9

1%

1%

1%

1k2

THRLED

1206

1%

R16

Led indicator for VRD system

5k6

R28

R68

0603

R23

ISET 100%DC->190A

4k7

U2B

R30

U1D

910R

1%

3k9

D6

0603

LM358AM

22R

LM324

0603

0603

4

RED

1%

SO8

0603

11

SO14

1%

1%

D 5mm

ISET

5

+

1%

10

+15V

7

DUTY

13

+

8

R27

C10

C9

6

-

14

9

-

-

Voutfilt

12

1

2

1k8

33nF

10nF

+

NB: i led sono a montaggio through

0603

50V

50V

R24

11

U1C

R29

D7

1%

1206

0603

C13

4

R36

100k

C7

LM324

R25

hole

1k

BAT54S

C11

22nF

4k7

0603

100nF

R26

SO14

1k2

0603

SOT23

100pF

50V

0603

1%

10k

1206

U4B

50V

1%

50V

0603

1%

0603

1%

0805

I+

OFF+

IMIS

5

+

0603

N.M.

1%

D16

3

7

LL4148

R31

C12

6

-

R34

R35

C14

MINIMELF

D8

+15V

39k

4n7F

IMIS=3.81V -> 145A

10k

10k

4n7F

GREEN

0603

50V

R33

LM358AM

R3

0603

0603

50V

1

2

D 5mm

1%

0603

220R

SO8

2k2

1%

1%

0603

D10

U2A

0603

0805

SJ1

BAT54S

3

+

1

1%

1%

0R

R46

1M

SOT23

0603

0603

1%

Q6

2

-

+5V

N.M.

OFF+

BC807

3

LM358AM

SOT23

+15V

SO8

R37

C15

SJ2

C28

2k2

22nF

0R

R50

2M

4n7F

I-

0805

50V

0603

0603

1%

R69

50V

1%

0603

N.M.

2k2

0603

R40

0603

1k

SJ3

1%

0603

. CW

0R

R55

3M9

1%

R42

0603

0603

1%

18k

R43

N.M.

R70

0603

50k MONO

2k2

1%

1%

0603

1%

SJ4

R45

1M

Calibrazione Imax

Piste per regolazione offset.

1

0R

1%

0603

0603

Trimmer smd verticale

WELDING

2

Q7

+5V

N.M.

BC817

SJ5

C20

R71

R72

3

SOT23

4k7

0R

R48

2M

100nF

0603

4k7

0603

1%

0603

50V

1%

0603

FAN_ONn

A

N.M.

0805

1%

A

+5V

+5V

+5V

SJ6

2

1

2

1

0R

R51

3M9

0603

1%

0603

1

N.M.

D13

D14

1

16

+5V

BAT54S

BAT54S

R58

U3

2

Q5

SOT23

SOT23

4k7

VDD

VSS

PTB0

15

S/T

R52

BC817

3

3

0603

3

SOT23

Piste per regolazione offset.

3

. CW

R61

1%

PTB1

14

PTCuM

2k2

R54

POTENZIOMETRO LINEARE 2K5 20%

SET

ISET

AD0

13

AD0/PTA0/TCH0/KBIO

PTB2

11

WELDING

0603

2k2

2

AD1

12

10

Arcset

1%

0603

BOURMS 91U1D-T14-EAO/260

CEVRD

IRQ

9

AD1/PTA1/TCH1/KBI1

PTB3

7

Fan

1%

R60

IRQ/PTA2/KBI2

PTB4

VRD

RESET

8

6

VENn

RST/PTA3/KBI3

PTB5

1

2k5

1k

Vout

AD2

5

3

PTCE

AD2/PTA4/KBI4/OSC2

PTB6

20%

1%

R64

C22

R62

IMIS

OSC

4

2

THLED

AD3/PTA5/KBI5/OSC1

PTB7

0603

3k3

100nF

100k

R63

ISET-> PWM of current set

1%

0603

50V

0603

10k

R83

R73

C26

SET -> Current set

1%

0805

1%

0603

C23

10k

C24

1k

100nF

MC68HC908QY4

CEVRD -> HV or CE version

1%

10nF

0603

10nF

0603

50V

SOIC16

50V

1%

50V

1%

VRD -> Start signal in CE version

0603

0603

0805

AD2 -> Ouptut voltage AD

+5V

OSC -> Oscillator pin

+5V

Vout -> output voltage

SET=3.81V ->145A

GND

Imis -> Output current

OSC

S/T -> Stick / tig working

AD2

+5V

PTCuM -> Error signal

Da implementare per la programmazione in-circuit

AD0

SW2

1

2

AD1

THRVRDS

1

8

R39

WELDING -> Green mode and VRD

Eseguire foratura per striscia pin berg.

IRQ

CEVRD

2

7

4k7

detect

RESET

THRLED

3

6

0603

2

1

Arcset -> Arc force selection

+5V

THRCE35

4

5

1%

Fan -> Fan setting

D11

SW DIP-4

3

BAT54S

S/T

VENn -> OCV set

+5V

SOT23

R59

PTCE -> Inverter set

1

2

C17

R44

4k7

D15

THLED -> thermal led

100R

0603

BAT54S

+15V

100nF

0603

1%

3

SOT23

D17

50V

1%

Arcset

BAT54S

R57

0805

SOT23

4k7

3

0603

R74

+5V

+5V

1%

12k

SW1

VRD

0603

3

1

1%

FEME T1C/1/L1/X/H

1

SW1: deviatore a tre posizioni

Q8

1

2

4

C21

BC817

2

THRVRDS

100nF

SOT23

D12

50V

3

R75

R76

R77

R78

BAT54S

2

C25

4X VITI FISSAGGIO SCHEDA

0805

R79

4k7

470k

10k

1k

SOT23

100nF

N.M.

4k7

0603

0603

0603

0603

R47

50V

0603

1%

1%

1%

R80

1%

3

10k

0805

1%

18k

0603

N.M.

U4A

0603

1%

M5

3

+15V

PTCuM

1

1

+

1%

ERRORn

M1

1

-

2

R49

100k

M2

1

LM358AM

C19

0603

SO8

R81

1%

M3

1nF

1

4k7

JP2

50V

0603

M4

1

I+

0603

1%

1

I-

2

3

4

LINCOLN ELECTRIC ITALIA s.r.l.

R82

D5

SERRA RICCO' (GE) - ITALIA

100R

S1M

MODU2 2VIE 90°

0603

DO 214AC

Title

Control Board V145S

C29

1%

100nF

50V

0805

Dr.

F.Scorza

Appr.

Size

Document Number

Rev

A2

X0708

00

Date last rev.: Wednesday, April 05, 2006

Sheet

2

of

2

1st emis. dr.:

<1st emis. dr.>

1st emis. date:

Wednesday, February 18, 2004

This sheet contains proprietary information owned by LINCOLN ELECTRIC ITALIA s.r.l. and is not to be

reproduced, disclosed, or used without the express permission of LINCOLN ELECTRIC ITALIA

1

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

INVERTEC® V155-S