Lincoln Electric LN-8 SVM132-A - Manual (Page 93)

G-3 ELECTRICAL DIAGRAMS
LN-8
CONNECTION SCHEMATIC
14669
Ch’ge. Sht. No.
3-31-83N
11-14-86G
2-13-87G
t
UNLESS OTHERWISE SPECIFIED TOLERANCE
ON HOLE SIZES PER E2056
ON 2 PLACE DECIMALS IS .02
WITH PUBLISHED STANDARDS.
ON 3 PLACE DECIMALS IS .002
ON ALL ANGLES IS .5 OF A DEGREE
MATERIAL TOLERANCE (" ") TO AGREE
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U.S.A.
EQUIP.
TYPE
SCALE
SUBJECT
DR DATE CHK REF. SUP’S’D’G
SHT.
NO.
THE LINCOLN ELECTRIC CO.
THIS SHEET CONTAINS PROPRIETARY INFORMATION
OWNED BY AND IS
NOT TO BE REPRODUCED, DISCLOSED OR USED
THE LINCOLN ELECTRIC CO.
M
M
WITHOUT THE EXPRESS PERMISSION OF
14669
3-4-83
NONE
FI 6-20-97
LN-8N AND -8S
CONNECTION SCHEMATIC
568
567
6
3
4
1
8
7
5
9
21
543
GND
568
567
2
541
ARM
539 525 627
626
528 541
THERMAL CIRCUIT BREAKER
21
567
635
636
637
VARIABLE VOLTAGE P.C. BD. (OPTIONAL)
21
567
635
636
637
631
632
634
32A
7
635
636
637
541 32A
CONTROL P.C. BD.
REV.
FWD.
7
32A
683
627
682
RELAY P.C. BOARD
626
32A
7
536
523
525A
529
526
531A
32A
522
LOW VOLTAGE TRIGGER TRANSFORMER
2CR REED SWITCH
ON
OFF
627
531
524
502
504
32A
531
2
4
115 V.A.C. (31 AND 32) TO POWER SOURCE WORK TERMINAL JUMPER CONNECTOR IS REMOVED AND CONNECTOR "B" IS PLUGGED
INTO OPTIONAL BURNBACK P.C. BOARD
ACTUATED BY MOTOR TEMPERATURE
ELECTRICAL SYMBOLS PER E1537
WORK
METER KIT RECEPTACLE
WIRE FEED MOTOR
504 502
METER SHUNT
ELECTRODE TO POWER SOURCE
10K
31
21
75
76
77
31 531
2
POWER SOURCE OUTPUT CONTROL
INTERLOCK SWITCH
GUN TRIGGER SWITCH
524
528
525A 525
4CR
.1
QUICK CONNECT TERMINALS ON BOARD FOR CONNECTION OF AUXILIARY EQUIPMENT 115 V.A.C.
JUMPER CONNECTOR IS REMOVED AND CONNECTOR "A" PLUGGED INTO OPTIONAL VARIABLE VOLTAGE POWER SOURCE BOARD. FACTORY INSTALLED IN CV-VV THE VARIABLE VOLTAGE BOARD IS MODELS AND DOES NOT INCLUDE JUMPER CONNECTOR.
JUMPER CONNECTOR
WORK TO POWER SOURCE
CONNECTOR "A"
543
539
5K
WIRE FEED SPEED CONTROL
DIRECTION OF WIRE FEED SWITCH
1CR
CASE GROUNDING SCREW
502
504
4
531
32A
2
5 AMP CIRCUIT BREAKER
BURNBACK P.C. BOARD (OPTIONAL)
2
4
GND
32
TO POWER SOURCE TO OPERATE CONTACTOR
32
32A
JUMPER
CONNECTOR
CONNECTOR "B"
BOLTED CONNECTION
RESISTOR USED ON CODES 9090 AND BELOW ONLY. THE GROUNDING LEAD PROTECTOR CONNECTS DIRECTLY TO THE CASE GROUNDING SCREW.
GROUND LEAD PROTECTOR
FOR CODES ABOVE 9090
.25 AMP RATING
G-3
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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.