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CHOWEL WELCOM-250Y, Maintenance Manual

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CHOWEL WELCOM-250Y Maintenance Manual Download Page 27

 

WELCOM-250Y, Z                                                                                                 

MAINTENANCE MANUAL

 

 

 

CHOWEL

 

- 27 - 

 

 

3-13 Circuit diagram for WELCOM-250Y, Z(2/4) 

 

+

15V

+

-

U

31A

U

PC

4064

2

3

1

4

11

U

25A

D

5201

1

2

3

4

12

13

D

18

1S1588

PV-R

EAD

pos

i.

det

=

=

=

>

R

10

10K

R

41

1%20K

U

25D

D

5201

16

15

14

R

65

1%20K

D5

1S1588

R

EF

1

U

PC

1093

+

15V

-

+

U

29

U

PC

301AC

2

3

6

7

8

4

5

1

L1

SN

-8S-500

R

EF

U

33D

D

5201

16

15

14

/B-T

EST

delt

a-R

 s

am

pl 

tim

ing

+

15V

R

58

100K

+

-

U

32D

U

PC

4064

13

12

14

4

11

U

24F

74H

C

14

13

12

+

15V

-15V

T

R

8A

2SA1015Y

s

y

nc

hronous

 s

ignal

R

44

1%20K

R

54

10K

R

39

1%20K

+

15V

-15V

D

10

1S1588

D

25

1S1588

S-W

AVE

PR

IM

AR

Y

CT

R

74

1%10K

R

49

10K

D

23

IN

4003

PC

-R

EAD

+

15V

D

17

1S1588

VR

1

5K

1

3

2

TXS

-15V

U

21C

74H

C

08

9

10

8

R

72

220

-15V

R

EF

+

15V

prim

ary

 c

urrent

net

.det

=

=

=

>

R

42

1%20K

+

-

U

31C

U

PC

4064

9

10

8

4

11

U

33A

D

5201

1

2

3

4

12

13

C

T

2B-I

N

+

15V

-15V

C

20

0.

01u

SC

-R

EAD

R

43

1%20K

+

15V

R

82

470

-15V

T

R

4A

2SA1015Y

D

12

1S1588

prim

ary

 v

olt

age

R

48

10K

U

35D

74H

C

00

12

13

11

R

55

10K

SY

N

C

-I

N

15Vrms TYP

VC

C

VC

C

U

33C

D

5201

9

10

11

+

-

U

37

U

PC

815

3

2

1

8

6

7

4

R

47

1%20K

+

-

U

32B

U

PC

4064

6

5

7

4

11

R

77

1K

VC

C

R

70

10K

T

R

5A

2SA1015Y

U

23A

D

5201

1

2

3

4

12

13

GAI

N

-8

pos

it

iv

e

c

y

c

le

R

EF

U

28A

74H

C

00

1

2

3

-15V

+

15V

C

21

0.

01U

R

80

2.

2K

D

14

1S1588

P-W

AVE

Vt

h=

-3V

D1

S1G/

SM

R

59

100K

+

-

U

32C

U

PC

4064

9

10

8

4

11

C

10

0.

1u

+

15V

U

26B

74H

C

32

4

5

6

R

71

10K

R

21

100K

D

13

1S1588

-15V

R

51

10K

R

18

100K

U

36D

74H

C

08

12

13

11

-15V

R

64

1%20K

P-C

Y

C

LE

5.

0-(5.

0-(-15))/

5=

1 

(v

)

VR

3

5K

1

3

2

+

-

U

30B

U

PC

4064

6

5

7

4

11

R

52

10K

R

15

33K

+

-

U

34B

U

PC

4064

6

5

7

4

11

D6

1S1588

R

40

1%20K

C

T

1-I

N

Max 5V peak ----->

D

21

IN

4003

+

15V

U

24B

74H

C

14

3

4

+

15V

U

22D

D

5201

16

15

14

D

27

1S1588

U

25B

D

5201

8

7

6

R

46

1%20K

/D

ISC

H

U

24E

74H

C

14

11

10

D

26

1S1588

C

T

2A-I

N

-15V

D4

1S1588

R

69

220

VR

2

5K

1

3

2

CT open check

R

73

1/

4W

1K

C

16

0.

15U

R

81

470K

C

13

470P

15Vrms TYP--->

-15V

D

20

IN

4003

R

60

1%20K

+

15V

R

29

1%20K

U

36B

74H

C

08

4

5

6

GAI

N

-2

-15V

+

-

U

30A

U

PC

4064

2

3

1

4

11

D

28

1S1588

R

EF

U

35C

74H

C

00

9

10

8

T

R

6A

2SA1015Y

15.

0/

5=

3(V)

R

45

1%20K

U

25C

D

5201

9

10

11

GAI

N

-4

Vt

h=

+

3V

C

17

0.

01u

C

11

0.

039

R

66

10K

R

79

100K

+

-

U

34C

U

PC

4064

9

10

8

4

11

-15V

+

15V

+

15V

R

26

1%20K

+

15V

-15V

D

24

1S1588

C

14

470P

U

35A

74H

C

00

1

2

3

R

35

1%20K

W

ELD

-SEQ

PC

-705A

V1.

0

PH

ASE 

2

A2

2

4

T

hurs

day

, 

J

une 

24,

 2004

T

it

le

Siz

e

D

oc

um

ent

 N

um

ber

R

ev

D

at

e:

Sheet

of

+

15V

C

12

22P

D

31

1S1588

C

T

2-C

OM

/A-T

EST

<

5V 

ref

erenc

e 

for 

AD

C

>

D9

1S1588

R

14

100K

T

R

10A

2SC

1815Y

R

75

1%10K

R

23

100K

C

19

0.

01u

+

15V

-15V

-15V

+

-

U

31D

U

PC

4064

13

12

14

4

11

R

37

1%20K

D

29

1S1588

R

31

1%20K

R

57

220

N

L17

0.

1u

/T

R

G-T

M

G

R

76

1K

U

26A

74H

C

32

1

2

3

+

-

U

34A

U

PC

4064

2

3

1

4

11

D8

1S1588

U

22A

D

5201

1

2

3

4

12

13

R

33

1%10K

+

-

U

30C

U

PC

4064

9

10

8

4

11

R

50

10K

C

KSB

R

25

10K

R

63

1%20K

U

26D

74H

C

32

12

13

11

R

19

100K

R

22

100K

+

15V

R

EF

R

78

470

/T

R

G-EN

B

+

15V

D

22

IN

4003

T

R

7A

2SA1015Y

D7

1S1588

D

11

1S1588

/SC

R

-OF

F

+

15V

R

28

1%20K

-15V

C8

470P

T

R

11A

2SC

1815Y

C

T

 t

es

t 

s

elec

t

+

-

U

34D

U

PC

4064

13

12

14

4

11

U

27A

74H

C

74

2

3

5

6

4

1

D

C

LK

Q

Q

PR

CL

U

35B

74H

C

00

4

5

6

D

15

1S1588

T

R

9A

2SC

1815Y

R

67

10K

U

23D

D

5201

16

15

14

C

T

-R

EAD

+

15V

U

21D

74H

C

08

12

13

11

R

16

33K

C

22

0.

01U

-15V

U

26C

74H

C

32

9

10

8

U

22C

D

5201

9

10

11

+

15V

-15V

R

62

1%20K

C

23

470P

/D

R

-T

M

G

<

GAI

N

 SELEC

T

ER

>

-15V

+

15V

D

16

1S1588

R

24

220

/C

-T

EST

D

32

-

+

U

39

U

PC

815

2

3

1

8

6

7

4

-15V

R

34

1%10K

C7

0.

1U

Sec

ondary

 C

T

VC

C

C9

6.

8u

/PV-ST

B

U

33B

D

5201

8

7

6

C6

1000P

+

15V-C

H

K

CKS

R

27

1%20K

R

38

1%20K

D

30

1S1588

-15V

R

36

1%20K

+

-

U

30D

U

PC

4064

13

12

14

4

11

R

12

39K

+

15V

R

30

1%20K

U

24C

74H

C

14

5

6

+

-

U

31B

U

PC

4064

6

5

7

4

11

R

53

10K

/R

ESET

C

18

0.

1u

-

+

U

38

OP07AJ

2

3

1

8

6

7

4

U

24A

74H

C

14

1

2

-15V

-15V

R

13

100K

GAI

N

SELEC

T

U

36A

74H

C

08

1

2

3

-15V

R

56

20K

R

20

100K

-15V-C

H

K

GAI

N

-1

R

11

10K

R

32

1%10K

U

23B

D

5201

8

7

6

U

23C

D

5201

9

10

11

C

T

2C

-I

N

+

15V

R

68

10K

+

15V

N

L16

0.

1u

D3

1S1588

T

X

B

U

22B

D

5201

8

7

6

+

-

U

32A

U

PC

4064

2

3

1

4

11

C

15

0.

22U

R

61

1%20K

/D

-T

EST

s

ec

ondary

 c

urrent

-15V

U

27B

74H

C

74

12

11

9

8

10

13

D

C

LK

Q

Q

PR

CL

U

36C

74H

C

08

9

10

8

D

33

1S1588

(1V)

+

15V

R

17

33K

-15V

U

24D

74H

C

14

9

8

C

T

2D

-I

N

<

for 

analog 

pow

er 

c

hec

k

>

Summary of Contents for WELCOM-250Y

Page 1: ...MM W250Y Z 041117 E MAINTENANCE MANUAL FOR RESISTANCE WELDING CONTROLLER MODEL WELCOM 250Y WELCOM 250Z CHOWEL CORPORATION...

Page 2: ...rained and experienced in the safe operation of welding equipment Do not allow untrained persons to install operate or maintain this equipment Contact your distributor if you do not fully understand t...

Page 3: ...t to change by CHOWEL at any time and without prior notice The information contained herein is the property of CHOWEL and shall not be reproduced in whole of in part without prior written approval of...

Page 4: ...g controller is charged with high voltage electricity Turn electrical power OFF before open the door In the case the door is opened as it is not turn OFF can lead to injury by an electric shock or dea...

Page 5: ...c fields Consequently Do not approach the secondary circuit of the machine carrying on your person any article that are likely to suffer damage These include the following Any kind of magnetic card or...

Page 6: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 6 CONTENTS 1 Specification of WELCOM 250Y Z 7 2 Fault detection 11 3 Circuit diagrams 15 4 TB30 31 5 RB10 34...

Page 7: ...ss 86 or less Quantity of water More then 5 liters per minute More then 1 321 gallons per minute Cooling water pressure Max 3Kgf Resistively More then 5000 ohms centimeter More then 1969 ohms inch 1 4...

Page 8: ...eset 1 Fault reset 1 External thermo 1 Input open circuit voltage 24V DC Input short circuit current 12mA 1 9 Output signals Gun valve 2 Gun valve output capacity 24V DC 0 5A Weld complete 1a Count up...

Page 9: ...hort Fault output 2nd cable break Alarm output 2nd cable short Fault output SCR over temperature Fault output Extremely low current Fault output Less then 50 Low current Fault output High current Faul...

Page 10: ...egree Average extinction angle 1 2 weld 0 to 90 degree Average conducting angle 1 2 weld 0 to 180 degree Average weld current 1 2 weld 2 0KA to 25 5KA Average power supply 1 2 weld 75 to 125 1 14 Faul...

Page 11: ...for when the power is turned on and alarmed immediately if any This fault indicates that there is a trouble with the control power built in the welding controller Replace the welding controller This...

Page 12: ...tion and alarmed immediately if any This error indicates that the data in the memory was destroyed or is outside of the specified range Reset the whole area of the program and monitor whether it has b...

Page 13: ...t test is made and alarmed immediately if any This fault indicates that the secondary cable is short circuited or almost short circuited Replace the secondary cable E50 SCR OVER TEMPERATURE This fault...

Page 14: ...communication connector and the communication cable for disconnecting E99 UNDEFINED ERROR This indicates the reserve code in which the fault codes are not classified or defined Record the operation st...

Page 15: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 15 3 Circuit diagrams 3 1 Layout diagram for WELCOM 250Y...

Page 16: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 16 3 2 Layout diagram for WELCOM 250Z...

Page 17: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 17 3 3 Timer unit and I O display...

Page 18: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 18 3 4 Electrical connection for WELCOM 250Y...

Page 19: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 19 3 5 Electrical connection for WELCOM 250Z...

Page 20: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 20 3 6 Connection diagram for WELCOM 250Y timer unit...

Page 21: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 21 3 7 Connection diagram for WELCOM 250Z timer unit...

Page 22: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 22 3 8 Connection diagram for I O connector WELCOM 250Y...

Page 23: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 23 3 9 Harness diagram for WELCOM 250Y...

Page 24: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 24 3 10 Harness diagram for WELCOM 250Z...

Page 25: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 25 3 11 Electrical connection for step down T R and SCR...

Page 26: ...VCC AVSS U8 P20 CKSB A14 U17 TMP82C255AN 13 14 15 16 12 11 10 9 31 32 33 34 30 29 28 27 35 36 37 38 39 40 41 42 24 23 22 21 20 19 18 17 59 58 57 56 55 64 65 66 44 45 46 47 48 49 50 51 5 4 3 2 1 64 63...

Page 27: ...8 1S1588 REF U35C 74HC00 9 10 8 TR6A 2SA1015Y 15 0 5 3 V R45 1 20K U25C D5201 9 10 11 GAIN 4 Vth 3V C17 0 01u C11 0 039 R66 10K R79 100K U34C UPC4064 9 10 8 4 11 15V 15V 15V R26 1 20K 15V 15V D24 1S15...

Page 28: ...8 RGLD8X472 2 3 4 5 6 7 8 1 9 PRS DB6 PRS DB5 REF VR4 2K XIN 02 DB2 JP7 GND PIN4 PC 705A V1 0 PHASE 2 A2 3 4 Thursday June 24 2004 Title Size Document Number Rev Date Sheet of JP8 VCC PIN0 0V R122 47K...

Page 29: ...7K XOUT 11 2 XIN 07 PC 705A V1 0 PHASE 2 A2 4 4 Thursday June 24 2004 Title Size Document Number Rev Date Sheet of ZD6 RD6 2JSA ZD10 RD6 2JSA OUT 12 ZD2 RD6 2JSA OUT 08 L3 SN 8S 500 SSR8 AQV203 1 2 4...

Page 30: ...WELCOM 250Y Z MAINTENANCE MANUAL CHOWEL 30 3 16 Circuit diagram for firing PCB...

Page 31: ...ommunication line backup memory keeps data about for 8 hours by super capacitor 7 Function Error Fault of timer display and reset Weld mode change WELD TEST PRESS TEST Teaching mode change PROGRAM NO...

Page 32: ...REF PB7 HALT CLK NMI INT0 INT1 INT2 PG0 AN0 PG1 AN1 PG2 AN2 PG3 AN3 PG4 AN4 PG5 AN5 TXA1 PA0 RXA1 PA1 CKA1 TEND0 PA2 TXS PA3 RXS CTS1 PA4 DREQ1 PA6 CKS PA5 TEND1 PA7 RESET TR1 2SC1815 A0 TR7 2SA1015...

Page 33: ...2 SW13 JB 15HFBP2 MODE DL3 TLR124 SW17 SW3 JB 15HFBP2 JB 15HFBP2 SW4 JB 15HFBP2 1 TEACHING BOX V1 0 TB30 A4 2 2 Friday May 26 2000 Title Size Document Number Rev Date Sheet of 6 SW8 JB 15HFBP2 SW7 JB...

Page 34: ...supplied from communication line 4 Display contents Start schedule no Valve stepper no Step no Sequence start indicator Stepper complete indicator 5 Function Error Fault of timer display and reset Ste...

Page 35: ...R10 R20 REN D1I D2I DEN D2 VCC NL1 0 1U Vcc 28 A9 C8 1000P R1 VCC NL2 0 1U D7 D0 C1 220U U6D 74HC32AP 12 13 11 C9 470P VCC Gnd 14 A12 U1 HD647180X FP 62 63 64 65 66 67 68 69 49 48 26 51 52 39 40 41 4...

Page 36: ...R10 R20 REN D1I D2I DEN D2 VCC NL1 0 1U Vcc 28 A9 C8 1000P R1 VCC NL2 0 1U D7 D0 C1 220U U6D 74HC32AP 12 13 11 C9 470P VCC Gnd 14 A12 U1 HD647180X FP 62 63 64 65 66 67 68 69 49 48 26 51 52 39 40 41 4...

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