Electrical diagrams, Na-5, Cleveland, ohio u.s.a – Lincoln Electric NA-5S User Manual

Page 143

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G-3

ELECTRICAL DIAGRAMS

NA-5

LOGIC PC BOARD (L6242-1) SCHEMATIC

R707

R706

581

S801A

DISABLE

START

500

D9C

START

S5

581A

N.A.

C706

DZ702

LED 7C

515

D8C

R702

R703

D710

500

D9C

S6

582

C704

DZ701

STOP

R704

565

PROCEDURE

PC BOARD

WELD TIME

OVER

D708

C728

500

D9C

R705

C705

500

D9C

+

5

4

X707

B

6

1

2

A

X707

3

515

D8C

R713

LED7D

R712

D714

R711

+

CR4

CURRENT

528

500

C707

D9C

D709

687

SHUT-

DOWN

C4M

R708

515

D8C

D715

566

PROCEDURE
PC BOARD

D716

BURNBACK

TIME OVER

C729

500

D9C

9

13

D

F

X706

X706

12

8

P7

2

1

X702

A

X702

B

4

5

3

6

11

E

X706

10

584S

START

TIME

INITIATE

CURRENT

588

}

PROCEDURE
PC BOARD

L701

1

2

A

X706

515

D8C

R714

637

C2M

VOLTAGE
PRESENT

R715

R716

Q701

D717

+

C709

DZ703

R717

515

D8C

LED 7J

DZ704

C712

S4

INCH
DOWN

592

R718

592

C3K

500

D9C

1

D

X705

2

1

2

X703

A

3

3

F

X705

4

P5

P10

692

N.D.

X701

D

13

12

11

691

N.D.

R710

C711

500

D9C

D

X707

13

12

11

8

10

9

C

X707

11

E

10

X705

694

10

9

N.C.

X701

C

8

PROCEDURE

PC BOARD

START TIME

OVER

WELD TIME

OVER

583S

X701

X701

B

A

1

2

3

4

5

6

+

C708

500

D9C

R709

P6

P2

X702

D

12

13

11

PROCEDURE
PC BOARD

CRATER
TIME OVER

BURNBACK

TIME

INITIATE

583C

3

B

4

X706

P9

12

13 X704

D

X704

C

11

10

9

8

5

4 X703

X704

A

B

1

2

3

6

9

10

X703

C

12

13

X703

D

11

8

693

N.D.

DZ705

LED

7E

13

A

X705

12

N.B.

.047

MFD

CR6

470

OHMS

500

D9C

689

10

9

C

X702

8

5

C

X705

6

584C

CRATER

TIME

PROCEDURE
PC BOARD

INITIATE

P1

5

C

X706

6

P4

690

N.D.

R738

C725

D726

Q709

560

PRESET
MONITOR

ENABLE

515

D8C

R737

PROCEDURE
PC BOARD

R735

D725

R736

C724

Q708

530

C4D

500

D9C

HOLD-LOW

DISABLE

R742

C727

500

D9C

R741

X705

8

B

9

Q711

564

WELD
PROCEDURE
ENABLE

PROCEDURE

PC BOARD

R721

C719

500

A7H

Q702

R720

D718

CR2

D722

LED 7H

TRAVEL

R722

610

A7E

589

R726

C721

500

A7H

Q704

R725

D720

CR3

D723

LED 7K

POWER

R727

610

A6G

682

R

LT1

ELECTRODE

HOT

R734

C723

Q707

688

500

D9C

R733

SHUTDOWN
ENABLE

C5K

C5E

N.E.

R740

C726

Q710

563

500

D9C

DZ706

PROCEDURE

PC BOARD

561

STRIKE PROCEDURE

DISABLE

R739

STRIKE

ENABLE

PROCEDURE

R724

C720

500

A7H

Q703

D719

CR5

610

A6G

681

R723

CURRENT

ARC CONTROL

ENABLE

R729

C722

500

A7H

Q705

D721

CR1

D724

LED 7G

R730

610

A6G

585

FLUX OR

WATER

R728

P3

X704

B

5

4

6

587

A3K

FEED

FORWARD

R731

R732

C710

500

D9C

S3

INCH

UP

586

B7J

FEED

ENABLE

R1001

D1002

D1004

C1001

+

CR

1001

D1001

D1003

SWITCH

D1005

24V SIG.

START

R1002

D1007

D1009

C1002

+

CR

1002

D1006

D1008

SWITCH

D1010

24V SIG.

SIGNAL
COMMOM

R1003

D1012

D1014

C1003

+

CR

1003

D1011

D1013

SWITCH

D1015

24V SIG.

R1004

D1017

D1019

C1004

+

CR

1004

D1016

D1018

SWITCH

D1020

24V SIG.

SIGNAL
COMMOM

STOP

INCH UP

INCH DOWN

REMOTE INTERFACE

OPTION

RED

VAC

24

RED

D1021

D1023

D1024

D1022

500

D9C

592

CR

1004

D7A

COMMON

SWITCH

586

CR

1003

D7J

582

CR

1002

D3A

581A

CR

1001

D1A

F1001

COMMON

SWITCH

A6G

FOR LEAD #694 CONNECTION SEE N.C.

METHODS OF TRAVEL AND BURNBACK.

NA-5 SHIPPED CONNECTED FOR INDICATED

SOURCE

OUTPUT

500

D9C

PROCEDURE

PCB

Q706

+

P8

CLEVELAND, OHIO U.S.A.

1-12-96D

L6682-4

C701

4.7/35

C702
C703
C704
C705
C706
C707
C708
C709
C710
THRU
C729
D701
THRU
D712

500/50

.047/100

10/25

D714
THRU
D717
D718
THRU
D721
D722
THRU
D726

.22/100

10/25
.047/100
10/25

10/25

}

}

}

}

}

.022/25

1A, 400V

1A, 400V

1A, 400V

1A, 1000V

16V, 1W

DZ701
DZ702
DZ703
DZ704
DZ705
DZ706

LED 7A

L701

THRU

16V, 1W
3V, 1/2W
16V, 1W
3V, 1/2W
5.1V, 1/2W
5.6mH, 28mA

LED 7E
LED 7G
LED 7H
LED 7J
LED 7K
Q701

RED
LIGHT
EMITTING
DIODE

Q702
THRU
Q705
Q706
THRU
Q711

}

}

2N 4123

2N 5657

2N 4123

R701

4.7K
4.7K

47K

100

R702
R703

R704
R705
R706
R707
R708
R709
R710
R711
R712
R713
R714
R715
R716
R717
R718
R720
R721
R722
R723
R724

470
100
4.7K
47K
470
470
15K
470
4.7K
4.7K
100K
22K
4.7K
100
2.7K
1.5K
68K
2.7K
1.5K

R725

2.7K

R726
R727

R728
R729
R730
R731
R732
R733
R734
R735
R736
R737
R738
R739
R740
R741
R742
X701

1.5K
68K

2.7K
1.5K
68K
22K
47K
22K
47K
22K
47K
6.8K
47K
10K
15K
10K
15K
QUAD 2

X702
X703
X704

INPUT

GATE

NAND

X707
X705
X706
X708

HEX
INVERTER
+15 V VOLTAGE
REGULATOR

LOGIC P.C. BOARD

KEY TO SYMBOLS

SCHEMATIC LOCATION REFERENCE

HORIZONTAL CO-ORDINATE LETTER
VERTICAL CO-ORDINATE NUMBER

UNLESS OTHERWISE SPECIFIED, COMPONENT VALUES OF:

CAPACITORS = MFD/VOLTS
RESISTORS = OHMS, 1 2 WATT

/

POWER SUPPLY SOURCE POINT

SCHEMATIC IDENTIFICATION LETTER

SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT

BOARD MAY CHANGE WITHOUT AFFECTING THE INTERCHANGE-

ABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY NOT

SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS
HAVING A COMMON CODE NUMBER.

ELECTRICAL SYMBOLS PER E1537

COMPONENTS NOT ON P.C. BOARD

TIC

22V 600mA SECONDARY

(PRIMARY SHOWN ON SCHEMATIC A)

S3
S4
S5
S6

}

SPST PUSH BUTTON SWITCH

LT1

INDICATOR LIGHT

CR6

OPTIONAL LINC-FILL
SOLID-STATE PILOT RELAY

}

CR5

CR4

CR3

}

}

OPTIONAL 110 VDC RELAY
COIL ACTUATED BY CR4

REED SWITCH ACTUATED BY
WELDING CURRENT

CR2

CR1

SPST 110 VDC RELAY COIL

SCHEMATIC A)

(N.O. CONTACTS SHOWN ON

R1001 THRU R1004

D1001 THRU D1004

C1001 THRU C1004
CR1001 THRU CR1004

F1001

2/50

150

SPDT, 24VDC
1A, 600V
1/8A FUSE

OPTIONAL REMOTE INTERFACE P.C. BOARD

}

FOR REMOTE INTERFACE PC. BOARDS L6580-1
OR HIGHER USE S21207 SCHEMATIC FOR

COMPONENT VALUES AND CIRCUIT CONNECTIONS.

N.A. S801 (SEE PROCEDURE PC BOARD

POSITION TO START WELD CYCLE.

SCHEMATIC) MUST BE IN "STRIKE"

N.B. COMPONENTS INCLUDED WITH

OPTIONAL LINC-FILL BYPASS KIT
(ALSO SEE SCHEMATIC A).

N.C. LEAD 694 TO BE CONNECTED TO

N.D. LOGIC BOARD JUMPER LEADS ARE TO

BE CONNECTED TO SUIT APPLICATION
PER CHARTS BELOW.

PIN P10 IF OPTIONAL CRATER MODULE
(SEE SCHEMATIC E) IS INSTALLED, OR
TO PIN P8 IF REMOVED.

G1556-1 AND EARLIER VOLTAGE BOARDS.

N.E. HOLD-LOW DISABLE IS USED WITH

ARC CONTROL ENABLE IS USED WITH
LATER VOLTAGE BOARDS.

START WITH WELD CURRENT

TO PIN

NO.

LEAD
NO.

METHODS OF TRAVEL

START-STOP

WITH SWITCHES
START-STOP

WITH WELD CURRENT

STOP WITH STOP SWITCH
START WITH START SWITCH

STOP AFTER CRATER TIME

START WITH START SWITCH

STOP AFTER BURN-BACK TIME

691

692

P6

P5

691

692

P6

P7

691

692

P7

P5

691

692

P6

P9

691

692

P6

P8

TO PIN

NO.

LEAD
NO.

METHODS OF BURNBACK

WIRE FEED STOP WITH

CONTACTOR DELAY
INCH UP WITH

CONTACTOR DELAY

690

693

P4

P3

690

693

P4

P1

INCH UP WITH NO

CONTACTOR DELAY

690

693

P2

P1

WHEN OPTIONAL
PROCEDURE MODULE

IS INSTALLED IN
CRATER RECEPTACLE

D712

LED 7B

515

D8C

FOR LOGIC P.C. BOARDS L6242-2 OR HIGHER USE G2974 SCHEMATIC FOR
COMPONENT VALUES AND CIRCUIT CONNECTIONS.

G-3

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 provided
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.

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