Lincoln Electric LN-25 SVM179-B Service Manual page 82

G-4
WiriNG DiaGram - lN-25 prO - CODEs 11620, 11621, 11716, 11717 (G5681-2)
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
555A
D
622B
E
WORK B AC
TO WORK CLIP
TIMER KIT (OPTIONAL)
POST-FLOW BURNBACK
J60
1 2 3 4 5 6 7 8
608
601 605
509B 4B 606 607
TO P60 ON
HARNESS
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.
TRIGGER
INTERLOCK /
2 STEP
N.B.
(SHOWN IN 2 STEP)
N.B.
S3
COLD
FEED
N.O.
1W 1B POLARITY 2W 2B
LED
LED
N.A. N.A.
P7/J7
721 721A
1
500A
500
2
555A 555
3
622A 622
4
707
5
575A 575
6
WORK A
576A 576
7
577A 577
BRIDGE 8
708
RECTIFIER 9
75C
10
667A 76C
11
77C
667B 12
1B 1B
13
D1
AC 1W
14 1W
2B 2B
15
67B
621A 2W 2W
16
67C
67B
1
2
667A
667C
3
821B
WORK A
4
21E
5
621
621A
6
P17/J17
N OT ES:
N.A. PIN NEAREST THE FL AT EDGE OF LED LENS (ANODE) ALIGNS WITH WHITE
LEAD OF LED SOCKET.
N.B. SWITCHES SHOWN FROM REAR CONNECTION SIDE OF SWITCH.
N.D. CONNECT " EXTRA" TO "TORQUE " ON EXTRA TO RQUE MODELS ONLY.
ElECTriCal DiaGrams
WIRING DIAGRAM- LN-25 PRO ANALOG
S1 S2
509D
509D
509E 509C
CC / CV
587A 523A
N.B.
(SHOWN IN CV)
P16/J16
509C
509
1
587A 587
2
523A 523
509E 3
530A 530A 530
4
1 601
2 509B
3
FEED P60 4 4B
5 605
PLATE
6 606
7 608
TACH
8 607
R
M OT OR /
U
GEARBOX
CONNECTS
B
TO TIMER
KIT
W B
P20/J20
1
2
L4
R
3 531
U
4 537
5
B 534
6 L5
B 7 551
W 8 550
3B
4B
667
1
42
2
667D 667E J18
41
3
4
J15
MOTOR FILTER P.C. BOARD
509A
530 523 509A 707 500 2W 3B
509
612 587 708 610 622 1W
509B
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
J6 J1
B2
CONTROL P.C. BOARD
B1
J4
J5
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12
550 690 507 537 531 575
667 2A 721A 67F
4A 821B 621 551 691 577 578 534
507 578
CONTACTOR
76C 21E 4A 42
67E 75C 77C 2A 41
1 2 3 4 5 6 7 8 9 10
E
D A
J14
C
B
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
LEAD COLOR CODING
B - BLACK
W - WHITE
G-4
J61
1 2 3 4
667D B1
667E B2
1
601
2 606
3 608
4
5 605
J2
6
607 N.D.
7 EXTRA
8 TO RQUE
9
555
10
GAS PURGE
PUSHBUTTON
SWITCH
612
N.O.
610
S4
1
N.B.
2
3
4
J3
5
-
6 BLACK
FAN
7
RED
8
576
690
GAS
SOLENOID
691
CONTACTOR COIL
67F
67C
67D 67E
INPUT ELECTRODE
CABLE CONNECTION
CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF P.C. BOARD)
1 3
1 2
J11, J16,
J12, J17
J18, J61
4
3 4 6
5 8
1
4
J3, J5, J9,
J19
J20, J60
1 5 8
4
1
5 1 6 1 8
J1, J2, J15
J4 J6, J7
10
6 7 12 9 16
A
G5681-2
lN-25™ prO