Electrical Diagrams - Lincoln Electric LN-25 SVM179-B Service Manual

G-2
WiriNG DiaGram - lN-25 prO - CODEs 11387, 11388 (G5681)
ANALOG DISPLAY CASE FRONT
YELLOW
WIRE FEED SPEED
THERMAL
CONTROL RHEOSTAT
10K2W
R1
577A 575A
ARC
576A
VOLTMETER
VM
TRIGGER
+
CONNECTOR
721 667B
622A
A
B
500A
P14
C
D
E 21A
21B AC
TO WORK CLIP
N.D.
DIGITAL DISPLAY CASE FRONT
PRESET P.C. BOARD
J12 J8
1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10
41B 42B
FL EX
CONNECTS TO J1
ON CONTROL BD
WIRE FEED
REMOTE
SPEED CONTROL
CONTROL VOLTAGE
RHEOSTAT
RHEOSTAT
10K2W 10K2W
N.C.
R1 R2
75A
577A 575A 77A
75B
576A 76A
75
76B
76
77B
77
41B
41C
42C
CONNECT TO J18
BRIDGE
41C
ON HARNESS AC
RECTIFIER
P18
1 2 3 4
TRIGGER
621B
CONNECTOR
622A
A
B
500A
P14
C AC
BRIDGE
D
RECTIFIER
E
621B
TO WORK CLIP 21B
621A
N.B.
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.
POLARITY
1W 1B 2W 2B TRIGGER
INTERLOCK /
LED
LED 2 STEP
N.A. N.A.
N.B., N.F.
SHOWN IN 2 STEP
CONNECTS TO
J7 ON HARNESS
721 N.B.
1
S3
500A
2
COLD
3
622A FEED
4
5
N.O.
575A
6
576A
7
577A
BRIDGE
8
P7
9
RECTIFIER
10
667A 11
667B
12
1B
13
D1
AC 1W
14
2B 15
67B
621A 2W
16
CONNECTS TO J17
ON HARNESS
67B
1
2
667A
3
P17
21A
4
5
621A
6
CONNECTS TO
P7 ON CASE
FRONT
J10
721A
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1
500
2
801 707A 805 702 75B
3
622
802 804 21 4
67 701 708 76B 77B
707
5
575
6
576
7
577
8
J7
708
9
805 75C
1 10
804
76C
2 11
P11
801 77C
3
12
S5
802 1B
4 13
RUN-
701 1W
CONNECTS TO J11 14
IN ON HARNESS 2B
15
702 2W
16
N.B., N.C.
CONNECTS TO J7
SHOWN OFF
ON HARNESS
1 67G
1
500A
2
2
3 J17 667C
3
622A
21G
4
4
707A
5 5
575A
6 621C
6
576A
7
577A
8
P7
CONNECTS TO P17
708
9
ON CASE FRONT
75
10
667B
76
11 TIMER KIT (OPTIONAL)
77
D2 12
AC
13 POST-FLOW
42B 14
42C
15
16
21 1 2
21A
CONNECTS TO J17
667B
ON HARNESS
601
667A 67B
1 509B
D1 2
AC
667A
3
P17
21A
4
67B
67
5
TO P60 ON
621A
6 HARNESS

ElECTriCal DiaGrams

WIRING DIAGRAM LN-25 PRO
S1 S2
509D
509D
509E 509C
CC / CV
587A 523A
N.B.
SHOWN IN CV
P16 509A
530
509C 509 509
1
612
587A 587
2
509B
523A 523
509E 3
530A 530A 530
4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 601
2 509B
3
4 4B
FEED P60
605
PLATE 5
6 606
7 608
TACH 8 607
R
M OT OR /
U
GEARBOX
CONNECTS
B
TO TIMER
KIT
W B
P9
1
2
L4
R
3 531
U 4 537
B 5 534
6 L5
B 7 551
W 8 550
21D
3B
21E
4B
21C
67C
1
L7
2
667D 667
3
21C
4
5
76C
621
6 1
67E 75C 77C
42
J18 2
41
3 J15 1 2 3 4 5 6 7 8 9 10
CONNECTS TO P18
4
ON CASE FRONT
14 PIN CIRCULAR CONNECTOR
TO POWER SOURCE
BURNBACK A
J60
B
67 2
1
C
2 4
D
3 75D 77D
3 4 5 6 7 8
E
4 76D 76D
P15 F
5 77D 75D
G
608
605 6 21F 21F
H
41A
7 2
4B 606 607 I
8 4 L6
J
9 41A 42A
K
10 42A
L
M
67
N
FL EX
CONNECTS TO J8
ON PRESET P.C. BD.
523 509A 707 500 2W 3B
587 708 610 622 1W
CONTROL P.C. BOARD
1 2 3 4 5 6 7 8 9 10
J6
J4
J5
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12
667 2A 721A 67F 550 690 507 537 531 575
551 691 577 578 534 576
4A 21D 621
507 578
CONTACTOR COIL
CURRENT
1 2 3 4
TRANSDUCER
J11
N OT ES:
CONTACTOR
N.A. PIN NEAREST THE FL AT EDGE OF LED LENS (ANODE) ALIGNS WITH WHITE
N.D.
21E 4A 42 LEAD OF LED SOCKET.
N.C.
2A 41 N.B. T OG GL E SWITCHES SHOWN FROM REAR CONNECTION SIDE OF SWITCH.
N.C. PRESENT ON CONTR OL CABLE MODELS ONLY.
N.D. PRESENT ON ACROSS THE ARC MODELS ONLY.
N.E. CONNECT " EXTRA" TO "TORQUE " ON EXTRA TO RQUE MODELS ONLY.
N.F. N OT PRESENT ON ALL MODELS.
J19 CONNECTS TO 14 PIN
CIRCULAR CONNECTOR
E
D
OUTPUT
J14
CONTROL
C
REMOTE
VOLTAGE GENERAL INFORMATION
CONTROL
ELECTRICAL SYMBOLS PER E1537
A J
LEAD COLOR CODING
K
42VAC B
B - BLACK
J12
L
C
W - WHITE
M
D
E
G-2
S4
GAS PURGE
PUSHBUTTON
SWITCH
612
N.O.
610
N.B.
J1
1 601
2
606
3 608 GAS
4
SOLENOID
5 605
J2
6 607
690
7 EXTRA
8 TO RQUE
9
N.E.
10
691
1
2
3
4
J3
5
-
6 BLACK
FAN
7
8 RED
67F
67C
67D 67E
INPUT ELECTRODE
CABLE CONNECTION
A
CAVITY NUMBERING SEQUENCE
B
(VIEWED FROM COMPONENT SIDE OF P.C. BOARD)
1
1 2 1 3 4
J11, J16, J18 J12, J17 J3, J5, J9, J60
I
3 4 4 6 5 8
H
N
1 5 1 6 1 8
G
J1, J2, J8, J15 J4 J6, J7, J10
F
6 10 7 12 9 16
C
G5681
lN-25™ prO