Wiring diagram, Electrical diagrams, Ln-8n, -8ne, -8s, and -8se wiring diagram – Lincoln Electric LN-8 SVM132-A User Manual
Page 92: Ln-8
G-2
ELECTRICAL DIAGRAMS
LN-8
Wiring Diagram
2 502 4 504 53132A
*
1
6
2
3
4
5
2 502 4 504 53132A
528
525
WIRE
FEED
MOTOR
539
U
541
B
R
626
627
W
BURNBACK P.C. BOARD
JUMPER CONNECTOR IS REMOVED
AND CONNECTOR "B" PLUGGED
INTO OPTIONAL BURNBACK
P.C. BOARD.
CONNECTOR "B"
THERMAL CIRCUIT
BREAKER
G
A
2
4
31
32
21
75
76
77
B
C
D
E
F
G
H
I
GND
31
531
2 OHMS
634
632
631
635
636
637
32A
543
541
32A
7
3
4
9
1
6
7
12
10
5
11
2
8
*
CONTROL
P.C.
BOARD
541
539
GROUNDING
LEAD
PROTECTOR
525A
4CR
525
2 8 9
5 7
1 4
3 6
*
GND
21
541
543
568
567
504
531
531
502
32A
10 4 11 1 8
9
7
5 6
627
683
682
536
3 7 2 12
*
RELAY
P.C. BOARD
627
626
32A
7
526
531A
32A
522
1CR
4
2
3
1
6
5
524
525A
529
R
B
R
B
682
683
627
DIRECTION
OF WIRE
FEED
SWITCH
32A
32
5 AMP CIRCUIT BREAKER
523
ON
OFF
536
INTERLOCK SWITCH
BEAD PINS ON
BOTTOM OF BOARD
21
635 636 637 567
*
1/ AMP 125V.
2
OR 250V. SLOW
BLOW FUSE
1
2
4
5
6
3
21
635
636
637
567
CONNECTOR "A"
VARIABLE VOLTAGE
P.C. BOARD
(OPTIONAL)
632
634
5K OHMS
631
10K OHMS
76
75
77
POWER SOURCE
OUTPUT
RHEOSTAT
SPEED
RHEOSTAT
WIRE FEED
LOW VOLTAGE
TRIGGER
TRANSFORMER
QUICK CONNECT TERMINALS 7 & 32A
TO CONNECT AUXILIARY EQUIPMENT
OPTIONAL METER
KIT RECEPTACLE
528
529
2CR REED SWITCH
528
524
A
B
C
D
E
GUN CABLE
567
568
ELECTRODE TO POWER SOURCE
METER SHUNT
WORK TO POWER SOURCE
WORK
BOLTED
CONNECTION
LEAD COLOR CODING
B = BLACK
G = GREEN
R = RED
W = WHITE
U = BLUE
ELECTRICAL SYMBOLS PER E1537
*
CONNECTOR CAVITY NUMBER
CONNECTIONS AS VIEWED FROM
BACK OF RHEOSTATS WHEN
COVER IS UP
TO CONTACTOR CIRCUIT
115 VAC
TO POWER SOURCE WORK
TERMINAL
1
2
3
4 7
5 8
6 9
METER KIT
RECEPTACLE
PIN SIDE OF
CONNECTOR
1 4 7 10
2 5 8 11
3 6 9 12
RELAY AND
CONTROL BOARD
1 4
2 5
6
3
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF BOARD)
BURNBACK
AND VARIABLE
VOLTAGE BOARD
2-1-2002M
M14679
LN-8N, -8NE, -8S, AND -8SE WIRING DIAGRAM
JUMPER CONNECTOR IS REMOVED AND CONNECTOR
"A" PLUGGED INTO OPTIONAL VARIABLE VOLTAGE
POWER SOURCE BOARD.
(OPTIONAL)
J1
N.B.
523
GND
G
SCREW
CASE
GROUNDING
.1 OHMS
N.A.
CASE
GROUNDING
SCREW
NOTES:
N.A. RESISTOR USED ON CODES 9090 AND BELOW. FOR CODES ABOVE 9090
THE GROUNDING LEAD PROTECTOR CONNECTS DIRECTLY TO THE CASE
GROUNDING SCREW.
N.B. THE VARIABLE VOLTAGE BOARD IS FACTORY INSTALLED IN CV-VV MODELS
AND DOES NOT INCLUDE JUMPER CONNECTOR.
115 V.A.C., .25 AMP RATING
W
W
W
G-2
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.