Wiring Diagram - Entire Machine - Code 11195, 11196, 11197, (L12484 - Lincoln Electric LF-72/74 Service Manual

G-5
WIRING DIAGRAM - ENTIRE MACHINE - CODE 11195, 11196, 11197, (L12484) LF-74
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BOARD)
1 1 2 1 3
J3 J7 J2
2 3 4 4 6
1 4 1 8
J5,J8
J1,J14
J9,J60
5 8 9 16
552B
552
GAS
SOLENOID
553
552B
BAFFLE
MOUNTED
RECTIFIER
DIODE
BRIDGE
41 580
14 PIN
AMPHENOL
CONNECTOR
TO POWER L1
SOURCE
A
B
C 2
OUTPUT
CONTROL
D 4
E 77A
REMOTE
VOLTAGE 76A
F
CONTROL
G 75A
H
41
I
42VAC
J
K 42
L
M
SENSE N 67
J12
NOTES:
N.B.
N.A. CAVITY NUMBERING SEQUENCE AS VIEWED FROM COMPONENT SIDE
OF BOARD.
N.B. CAVITY NUMBERING SEQUENCE AS VIEWED FROM LEAD SIDE OF
CONNECTOR.
N.C. TOGGLESWITCHES AND POTENTIOMETERS SHOWN FROM
CONNECTION SIDE OF SWITCH.
N.D. PIN NEAREST THE FLAT EDGE OF LED LENS ALIGNS WITH WHITE LEAD
OF LED SOCKET.
N.E. PLACE P11 IN APPROPRIATE POSITION FORSPEED OR TORQUE.
CONNECTION SHOWN IS FOR NORMAL SPEED. NOTE: NORMAL SPEED
NOT AVAILABLE ON HIGH TORQUE MODEL. HIGH TORQUE NOT AVAILABLE ON
NORMAL SPEED MODEL.
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.
ELECTRICAL DIAGRAMS
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
COLOR CODE
B - BLACK
W - WHITE
R - RED
U - BLUE
NORMAL SPEED
1 1
B
2 2
A 3 3
4 4
N.E.
P11 P4
HIGH TORQUE
1 1
B
2 2
A 3 3
4 4
N.E.
P11 P6
L6
42
L4
552A
575
575B
575C
577 575C 576
580
550 A 563
562 554 552A 553 556 552
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
J1
L2
INPUT ELECTRODE
67 CABLE CONNECTION
551A
FEED
PLATE
TACH
R
MOTOR /
U
GEARBOX
B
B W
521
522
551B
551A
P10
551B
1
2
551
3 R
563
562 4 U
575B B
5
6
L5
551 7 B
550 8 W
N.B.
4
2
521 587 608 1W 558 601 589
K
522
E 559 515
605 607 Y
606
1 2 3 4 5 6 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
J2 J3 J14
COMMON ANALOG P.C. BOARD
577
3
576 10K/2W
2
1
575
N.C.
77
75A 1 75
3
76A 2 76 76 2
1
77A 3 77
75
4
P7
N.B.
POST-FLOW BURNBACK
J60
1 2 3 4 5 6 7 8
601 515A 605 607
606A 608
N.B.
TRIGGER
INPUT
556 A
B
554
C
D
E
606A
1B
L3
606
N.D.
1W
1B
COLD FEED
558
515A
S1
515
559
GAS PURGE
N.C.
TRIGGER
INTERLOCK
589
S2
587
N.A.
2-STEP
N.C.
G-5
WIRE FEED
SPEED
CONTROL
POTENTIOMETER
REMOTE
CONTROL
10K/2W VOLTAGE
POTENTIOMETER
(OPTIONAL)
N.C.
TIMER KIT
(OPTIONAL)
N.A.
TRIGGER
CONNECTOR
J13
THERMAL LED
A
L12484
LF-72/74