Electrical diagrams, Feeder board, Digital power supply board – Lincoln Electric POWER MIG SVM160-B User Manual
Page 106: Msp iii board, 300a chopper board, P.c. board connection detail, Spi spool gun board, Power mig 300
ELECTRICAL DIAGRAMS
G-5
POWER MIG 300
WIRING DIAGRAM - POWER MIG 300 CODE 11097 AND 11098 ONLY
J4
1
2
3
4
5
6
7
8
9
10
11
12
J3
1
2
3
4
5
6
7
8
9
10
J7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J9
1
2
3
4
5
6
J8
1
2
3
4
5
6
7
8
J2
1
2
3
4
J1
0B
1
2
J1
1
1
2
3
4
1
2
J6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J5
1
2
3
4
J1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J1
0A
C
O
N
T
R
O
L
B
O
A
R
D
J81
1
2
3
4
J82
J83
1
2
3
4
5
6
J86
1
2
3
4
5
6
7
8
9
10
J87
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J84
1
2
3
4
5
6
7
8
1101
1102
1103
1104
1102
1101
J41
1
2
3
4
J43
1
2
3
4
5
6
7
8
9
10
11
12
J42
1
2
3
4
5
6
DIGITAL POWER SUPPLY BOARD
FEEDER BOARD
844:B
847:U
841:R
832
831
834
833
836
835
806
804
802
801
716
715
615
604
607
604
412
411
410
408
407
406
405
403
402
401
WIRE DRIVE
MOTOR
GEARBOX
TO + STUD
901 903
502
FAN
MOTOR
DISPLAY
P.C. BOARD
50
wa
tts
50
0 o
hm
s
2520
2530
471
472
412
411
408
407
403
406 402
405
410
401
901
903
715
716
+
-
LEM
1 2 3 4
802
804
801
806
+STUD
-STUD
502
503A
FAN
RELAY
~
FAN
L1
CHOKE
RECONNECT PANEL
LINE
SWITCH
H1
H2
H5
H3
H4
115V
X3
X4
X1
X2
H1
H4
L2
L1
H1
W
B
G
L1
L2
H5 H2 H3 H4
1
2
3
4
5
6
J88
MSP III
BOARD
DISPLAY
BOARD
611
503
R2
CONTROL
RECTIFIER
TP6
903B
901B
TP5
TP4
R1
50
wa
tts
50
0 o
hm
s
3234
3233
J34
2
3
4
5
6
7
8
9
10
FLEX
J341
1
2
3
4
5
6
7
8
MSP III BOARD
3414
3411
3411A
3415
SWITCH
SET
3411
3414
3415
3416
3417
X5
X6
-
+
C6
+
X6
X5
6800/75
C5
+
2400/100
615
607
B8
B7
C1
C2
C3
C4
B1
B3
B2
B4
B6
B5
300A CHOPPER BOARD
(SHOWN
CONNECTED
FOR 230V)
3234
472
471
3233
471B
472B
L3
B
W
L2
L7
L6
1104
1103
503
503A
B6
B2
B5
B1
B5
1
2
3
4
5
6
7
20
253
254
251
254
253
251
SHIELDED CABLE
S3 RS232
CONNECTOR
SHIELDED
CABLE
P.C. BOARD CONNECTION DETAIL
J37
FLEX
CONTROL
BOARD
FLEX CIRCUIT
SHIELDED
CABLE
H1
H4
H1
L9
PANEL ENCODERS
VOLTS/TRIM WFS/AMPS
858
857
859
8510
1
2
3
1
2
3
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
J85
8512
852
851
8511
855A
G4511
1
2
3
4
5
6
7
8
B W
A
P86
1
2
3
4
5
6
7
8
9
10
SPI SPOOL
GUN BOARD
J89
J811
J810
1
2
3
4
5
6
7
8
9
10
1
2
L2 THRU L9 ARE RF CHOKES
1
14
7
6
1
2
9
1
16
8
1
10
5
6
3
4
1 2
4
1
6
3
5
1
8
4
7
1
(VIEWED FROM COMPONENT SIDE OF BOARD)
CONNECTOR CAVITY NUMBERING SEQUENCE
12
6
LEAD COLOR CODE:
B=BLACK OR GRAY
R=RED OR PINK
W=WHITE
G=GREEN (W/YELLOW STRIPE)
9 PIN
P50
9
8
7
6
5
4
1 2 3
7
8
9
4
5
6
3 2 1
9 PIN
J50
PANEL RECEPTACLE CAVITY NUMBERING SEQUENCE
(VIEWED FROM LEAD SIDE OF RECEPTACLE)
ALL CASE FRONT COMPONENTS SHOWN VIEWED FROM REAR.
3218
75
-
+
BRIDGE
DIODE
1
2
3
4
5
6
3214
TACH
L8
855
SPOOL GUN/
PUSH-PULL
SWITCH
853
2B
TRIGGER
DUAL PROCEDURE
4
3
2
1
4
834
833
GAS
SOLENOID
853
8514
L4
L5
(VIEWED FROM REAR)
SPOOL GUN
PUSH-PULL
AMPHENOL
FOOT
AMPTROL
AMPHENOL
77A
77
76A
76
75A
75
2A
77A
3214
3218
75A
2A
4A
76A
2
4
4A
G
D
C
B
A
F
E
D
C
B
A
F
E
GND
SELECT
SWITCH
3417
3411A
3416
8514
8111
8115
8111
836
8115
1
2
3
4
7
8
77
76
846A
846
846
851A
2
G-5
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.