Lincoln Electric SVM179-B Welder User Manual


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ElECTriCal DiaGrams
G-2
lN-25™ prO
WiriNG DiaGram - lN-25 prO - CODEs 11387, 11388 (G5681)
CONTROL P.C
.
BOARD
-
+
BRIDGE
RECTIFIER
AC
AC
POLARITY
LED
A
P14
62
2A
TRIGGER
CONNECTOR
WIRING DIAGRAM LN-25 PRO
G5681
C
J1, J
2, J8, J
15
C
AVI
TY
NU
MBE
RIN
G SEQ
UENCE
(VI
EW
ED FROM COMPONENT
S
IDE OF
P
.C.
BO
ARD
)
6
5
10
1
J6, J
7, J
10
9
8
16
1
4
6
1
3
J3, J
5, J9, J
60
5
4
8
1
J1
2, J
17
FEED
PLATE
P9
8
M
OT
O
R
/
GEARBOX
W
R
TACH
U
B
53
1
B
B
W
69
0
69
1
GAS
SOLENOID
TRIGGER
INTERLOCK
/
2STEP
J3
5
6
3
4
2
1
R
U
B
5
6
3
4
2
1
7
8
J6
1 23456789
10 11 12 13 14 15 16
50
0A
B
C
D
E
53
7
53
4
55
1
55
0
7
6
5
4
3
2
1
N
OT
E
S:
N.
A. PI
N
NEARES
T T
H
E
FL
A
T
EDG
E
OF
L
E
D
LEN
S
(A
NOD
E)
A
LI
GN
S
W
IT
H
W
HI
TE
LEA
D
OF
L
E
D
SOCKE
T.
N.
B.
T
OG
GL
E
SW
IT
CHE
S
SHOW
N
FR
O
M
REA
R
CONNE
CT
IO
N
SI
D
E
OF
S
W
IT
C
H.
N.C.
PRESE
NT
O
N
CO
NT
R
OL
C
ABL
E
MODEL
S
ONL
Y.
N.D.
PRESE
NT
O
N
ACROS
S
TH
E
AR
C
MODEL
S
ONL
Y.
N.
E.
CONNE
CT
"
EX
TR
A
" T
O
"T
ORQUE
"
O
N
EX
TR
A
TO
RQU
E
MODEL
S
ONL
Y.
N.
F.
N
OT
P
RESE
NT
O
N
A
LL
MODEL
S.
S4
1
GAS PURGE
PUSHBUTTON
SWITCH
S1
S3
COLD
FEED
2
3
4
53
0A
53
0
52
3
58
7
58
7A
P16
1
2
3
4
P7
5
6
72
1A
50
0
62
2A
57
5A
50
0A
62
2
57
5
7
8
57
6A
57
6
N.B.
N.B.
,
N.
F.
N.B.
L5
L4
YELLOW
THERMAL
LED
1W
N.A.
CC
/
CV
S2
52
3A
N.B.
VM
+
66
7B
72
1
ARC
VOLTMETER
1234
J5
J4
1234567
8
9
10 11 12
9
10
J2
A
B
C
D
E
J14
57
6A
57
5A
57
7A
10
K2W
R1
WIRE FEED SPEED
CONTROL RHEOSTAT
1B
9
10
11
12
13
14
15
16
62
1A
72
1
1B
1W
2B
2W
57
7
1B
1W
2B
2W
57
7A
66
7B
21
B
67
B
50
0
62
2
50
9C
50
9E
50
9
50
9E
61
0
70
7
53
0
69
0
57
5
57
8
53
1
60
1
57
6
53
7
61
2
58
7
60
6
60
7
60
5
60
8
50
7
57
7
69
1
53
4
1W
2W
3B
4B
P60
61
2
52
3
50
9A
50
9D
50
9D
53
0A
52
3A
58
7A
50
9C
57
6A
57
5A
57
7A
10
K2W
R1
DIGITAL DISPLAY CASE FRONT
PO
ST-FL
OW
BURNBACK
TIMER KIT
(
OPTIONA
L)
J60
8
60
1
50
9B
60
5
60
6
60
7
60
8
765
43
2
1
77
A
10
K2W
R2
REMOTE
CONTROL
VOLTAGE
RHEOSTAT
76
A
75
A
70
7
21
A
66
7A
61
0
77
C
76
C
75
C
OUTP
UT
CO
NT
RO
L
A
J19
B
C
D
E
F
G
H
I
J
K
L
M
N
R
EMOTE
VOLTAGE
CO
NT
RO
L
42VA
C
1 23456789
10
J1
ANALOG DISPLAY CASE FRONT
1
2
3
4
J7
5
6
7
8
9
10
11
12
13
14
15
16
CO
NNE
CTS TO
J7 ON
HARN
ESS
TO P60
ON
HARN
ESS
G
ENER
A
L
INFOR
MAT
ION
EL
EC
T
RIC
A
L
SYMBOLS P
ER
E1537
LE
AD
CO
L
OR COD
ING
B
- B
L
AC
K
W
-
W
HI
TE
50
7
57
8
CO
NT
A
CT
O
R
C
OIL
+
1234
J11
CURRENT
TRANSDUCER
CO
NTA
CTO
R
N.C.
N.D.
67
C
50
9B
50
9A
50
9
N.D.
14 PIN CIRCULAR CONNECTOR
TO POWER SOURCE
8
7
6
5
4
3
2
1
60
1
50
9B
60
5
60
6
60
7
60
8
P15
8
7
6
5
4
3
2
1
75
D
10
9
76
D
77
D
41
A
42
A
2
77
D
4
76
D
75
D
42
A
41
A
CO
NNE
CTS TO
P7 ON
C
ASE
F
RO
NT
55
0
55
1
J15
1 23456789
10
75
C
76
C
77
C
41
42
J1
1, J
1
6, J
18
3
4
1
2
J4
7
6
12
1
J12
A
B
C
D
E
F
M
L
K
J
I
N
G
H
67
1
2
67
B
P17
CO
NNE
CTS TO J17
ON
HARN
ESS
CO
NNE
CTS TO 14 PIN
CI
RCU
LA
RCO
NNE
CTO
R
J18
3
4
1
2
3
4
CO
NNE
CTS TO P17
ON
C
ASE FRO
NT
41
42
1 234
N.C.
CO
NNE
CTS TO J8
ON P
R
ESET P
.C. BD.
FL
EX
EX
TR
A
TO
RQUE
N.
E.
7
8
5678
67
E
21
E
2A
4A
CO
NNE
CTS
TO T
IMER
KIT
1
2
3
4
5
6
J17
70
8
66
7
4A
2A
72
1A
67F
21
D
62
1
5
6
70
8
67
G
66
7C
62
1C
67
21F
2
4
21F
21
G
67
E
67F
67
D
CO
NNE
CTS TO P18
ON
C
ASE FRO
NT
66
7A
21
A
62
1A
21
E
21
D
21
C
WIRE FEED
SPEED
CONTROL
RHEOSTAT
TO
WORK
C
LIP
2W
N.A.
2B
1
2
67
B
P17
CO
NNE
CTS TO J17
ON
HARN
ESS
3
4
5
6
66
7A
21
A
62
1A
1
2
3
4
5
6
50
0A
62
2A
57
5A
7
8
57
6A
9
10
11
12
13
14
15
16
57
7A
77
76
75
70
7A
-
+
BRIDGE
RECTIFIER
AC
AC
62
1A
21
B
67
B
21
A
TO
WORK
C
LIP
-
+
BRIDGE
RECTIFIER
AC
AC
A
P14
62
2A
TRIGGER
CONNECTOR
50
0A
B
C
D
E
66
7B
J10
1234567 9
10 11 12
70
7A
70
2
21
80
5
70
8
67
80
4
70
1
80
2
8
13 14 15 16
80
1
76
B
77
B
75
B
1234567 9
10
8
J8
123456
J12
41
B
42
B
PRESET P.C
.
BOARD
FL
EX
66
7B
62
1B
P7
1
2
3
4
P11
66
7A
41
B
70
8
P18
CO
NNE
CT TO J18
ON
HARN
ESS
80
5
80
4
80
1
80
2
42
C
41
C
75
75
B
76
76
B
77
77
B
CO
NNE
CTS TO J1
ON
CO
NT
RO
L BD
CO
NNE
CTS TO J7
ON
HARN
ESS
CO
NNE
CTS TO J11
ON
HARN
ESS
67
21
62
1B
42
B
S5
RUN-
IN
N.B.
,
N.C.
41
C
42
C
N.B
.
70
1
70
2
L6
BLACK
RED
FAN
+
-
4B
3B
4B
N.
O.
N.
O.
SHOWN
I
NCV
SHOWN
I
N2STEP
SHOWN OFF
D2
D1
D1
INPUT ELECTRODE
CABLE CONNECTION
1
2
3
4
5
6
67
C
66
7
62
1
21
C
66
7D
L7
G-2
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.
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