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F-1
WIRING DIAGRAM
F-1
LN-7 & LN-7 GMA
1
3
2
4
6
5
567
21
508
509
526
525
567
21
OPTIONAL
ANALOG METER
KIT PLUG
OPTIONAL DIGITAL
METER KIT
PLUG
P5
J5
D
C
F
B
A
E
.
CR2
526
527
21
GLP
REED
SWITCH
N.E.
GND
2
4
INPUT
CONTROL
CABLE
TO CONTACTOR CIRCUIT
115 V.A.C.
WORK
4
2
1
6
}
*
31
32A
531
4
2
3
P1
1
6
}
*
4
2
3
P3
322
523
509
508
31
32A
5
B
B
Y
Y
R
R
2 AMP
1
4
2
3
5
6
1
4
7
2
3
5
6
8
9
10
11
12
1
6
4
2
3
5
529
544
543
542
524
525
P2
*
}
BS1S
B1
T1
P
T2
C
B
B
P
T2
C
B1
T1
1
2
34
5
6789
10
11
12
*
N.C.
526
527
OPTIONAL
TIMER KIT PLUG
OPTIONAL
BURNBACK
KIT PLUG
WIRE FEED MOTOR
539
541
G
G
7
B
B
R
R
Y
Y
T1
w
508
509
B
32
31
531
R1
2
25W
31
32A
529
524
10K
R2
544
543
542
A
B
C
D
E
567
GUN CABLE
CONNECTION
GUN & CABLE
CONDUCTOR BLOCK
INPUT
ELECTRODE
CABLE
524
525
WIRE SPEED
RHEOSTAT
GROUND LEAD
PROTECTOR RESET
2.5 AMP
CIRCUIT BREAKER
LOW VOLTAGE
TRIGGER TRANSFORMER
N.A.
HI
LOW
N.B. METER KIT RECEPTACLE.
N.C. OPTIONAL GMA TIMER OR
W
539
541
B
N.B.
J5
GUN CONTROL
CABLE
*
CONNECTOR CAVITY
NUMBERING SEQUENCE.
(COMPONENT SIDE OF BOARD)
LEAD COLOR CODING
B - BLACK
R - RED
W - WHITE
Y - YELLOW
G - GREEN
ELECTRICAL SYMBOLS PER E-1537
32
CASE GROUNDING STUD
BURNBACK KIT RECEPTACLE.
LN-7 CONTROL P.C. BOARD
N.D. ON LN-7 :
(SLOW ACCELERATION).
ON LN-7 GMA:
GAS SOLENOID
WATER SOLENOID
COOLED GUNS ONLY)
(LN-7 GMA ONLY)
(LN-7 GMA FOR WATER-
J102
F101
J104
CR101
J103
J101
R140
R137
N.A. QUICK CONNECT TERMINALS
7 & 32A TO OPTIONAL
0.25 AMP RATING.
SOLENOID VALVE 115 V.A.C.
KIT IS INSTALLED.
JUMPER PLUG (P4) IS
REMOVED WHEN EITHER
N.E. ACTIVATED BY CURRENT
FLOWING IN GROUNDING
LEAD.
S101 IN THE "S"
POSITION.
POSITION.
S101 IN THE "F"
S
1
0
1
1
2
3
4
5
6
7
8
N
O
S
1
0
1
1
2
3
4
5
6
7
8
N
O
S
F
S101
N.D.
32A
A
A
.
6-8-2001G
M16
WIRING DIAGRAM
974
This wiring diagram is typical for this unit but is not exact for all codes. If an exact diagram is needed, specify the code
number and contact the Lincoln Electric Service Department.