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G-4
ELECTRICAL DIAGRAMS
LN-7 GMA WIRE FEEDER
Wiring Diagram — Codes 9643 and 9796
LN-7 AND LN-7 GMA
WIRING DIAGRAM
16056
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
J1
*
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
F1
2 AMP
1
6
4
2
3
5
529
544
543
542
524
525
P2
J2
*
BS1S
B1
T1
P
T2
C
B
B
P
T2
C
B1
T1
1
2
3
4
5
6789
10
11
12
J4
*
N.C.
526
527
OPTIONAL
TIMER KIT PLUG
OPTIONAL
BURNBACK
KIT PLUG
CR1
WIRE FEED MOTOR
539
541
G
G
32A
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
F
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
R40
LOW
R37
F
S
N.D.
N.A. QUICK CONNECT TERMINALS 7 &
32A
N.B. METER KIT RECEPTACLE.
N.C. OPTIONAL GMA TIMER OR
N.E. ACTIVATED BY CURRENT
FLOWING IN GROUNDING LEAD.
W
539
541
B
J3
N.B.
J6
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.
VALVE 115 V.A.C. 0.25 AMP
RATING.
LN-7 CONTROL P.C. BOARD
JUMPER PLUG (P4) IS REMOVED
WHEN EITHER KIT IS
INSTALLED.
.
N.D. ON LN-7 :
JUMPER IS SHIPPED
(SLOW ACCELERATION).
CONNECTED TO PIN "S"
ON LN-7 GMA:
JUMPER IS SHIPPED
CONNECTED TO PIN "F"
GAS SOLENOID
WATER SOLENOID
COOLED GUNS ONLY)
TO OPTIONAL SOLENOID
(LN-7 GMA ONLY)
(LN-7 GMA FOR WATER-
6-8-90B
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NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.