Lincoln Electric INVERTEC IM904, Operator'S Manual, Page: 31 / 38

F-2
DIAGRAMS
F-2
INVERTEC STT II (CE)
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diag
ram for a particular code is pasted inside
the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. G
ive the equipment code number.
+
-
ELEC
TR
ICA
L SY
M
B
OLS
PER E
1537
12 34
1
3
4
6
1 61
0
5
{
1
4 8
5
H1
T1
FAN MO
TO
R
G F E
J
A
I
K C D M
L
B N H
75 76 77 31 32 41 42 2 4
81 82 21
GND SPA
R
E
42 VA
C
T3
CUR
RE
NT
TR
AN
SF
OR
ME
R
1
4
T2 MA
IN
TR
A
N
S
FO
R
M
E
R
R3
OFF
ON
H1
TP
1
TP
3
TP
2
I
I
5 8
D1 D2 D3
CH
O
K
E
L3
CO
N
TRO
L
BOARD
10K 2W
R1
1
30
7
30
8
30
9
31
0
30
2
30
3
30
4
PO
W
E
R
BO
A
R
D
(V
IE
W
ED FROM COMPONENT
SI
DE OF
BO
ARD)
NOTE
S:
TR
IGGER
}
INP
UT
PE
R
N.A.
PO
W
E
R
S1
1
}
2
3 1
7 8
}
}
J7
J6
CB
1
504
43A
AUXI
LI
A
R
Y
TR
A
N
S
FO
R
M
E
R
2 4 5 6 1 3
N.E.
C
W
(M
AX)
9
10
F F
S
S S
TOP OUTS
ID
E
BOT
TOM
IN
S
ID
E
S S
S
F
F
TOP
TOP IN
S
ID
E
BOT
TOM
OUTS
ID
E
7
6 8
4 5
C
O
NT
RO
L
211A
212
B
15
0 5
W
FA
N
TH
ERM
OS
TA
T
H2 H3
H4
F BOT
TOM
F
212A
W
V
U
H1
212
0V 24
V
42V
18
V
1 4
2 3
.001/
40
0
COLOR C
O
DE:
R =
RED
6
H5
2 3 6 4 7 8 5
502
Y
301
D4 D5
1
7
8
14
D1
1
D10 D9 D8
D7
N.E. 21
0
6AM
P
H2 H3 H4
A
9C
W B G
A
FOR THR
E
E
PH
A
SE INPU
T:
CON
NECT GREEN LEAD TO
GR
OUN
D PER NATIONAL EL
EC
TR
IC
CODE.
CON
NECT B
LAC
K
, R
E
D & W
H
ITE
LEADS TO
SU
PPL
Y
CIR
CUIT.
W
R
AP R
E
D
L
EAD
W
IT
H
TAPE
TO PROVIDE 600
V. INSU
LA
TION.
FOR THR
E
E
PH
A
SE INPU
T:
GROU
ND
M
A
CH
IN
E PE
R
NAT
ION
AL
AN
D LOCAL EL
EC
TR
IC
AL
C
O
DES.
CON
NECT T
E
RM
INALS U, V &
W
TO SUPPLY C
IRCU
IT
.
CON
NECT T
E
RM
INALS U & W
T
O
SUPPLY
CIRC
UIT
.
N.D
. PLACE "A"
LEAD ON APPROPR
IAT
E CON
NECTION FOR
IN
PUT
VOLTA
GE.
C
O
NNEC
TI
ON SH
OW
N IS FOR 380-415
V OPERATION.
CON
NECT B
LAC
K
& W
H
IT
E LEA
D
S
T
O
SUPPLY
CIRC
UIT
.
FOR SIN
GL
E PHASE INPU
T:
CON
NECT GREEN LEAD T
O
GR
OUN
D PER NATIONAL E
LECTRIC
C
O
DE.
FOR SIN
GL
E PHASE INPU
T:
GROU
ND M
A
CHIN
E P
E
R
NAT
ION
AL
AN
D LOCAL EL
EC
TR
IC
AL
C
O
DES.
W =
WH
IT
E
B =
BL
AC
K
G =
GREEN
Y
=
YELLOW
H6
N.
D.
R
H1
+ ARC
- ARC
10 2W
C4
.001/
400
9D
H1
H3
H3
415
V
200- 208V
380-
R2
C3
10 2W
YY
30
5
1 2 3 4
}
J1
4
31
1
313
A
4 AM
P
SLOW BLOW
N.A.
N.B. SINCE C
O
MPONEN
TS
OR C
IRCU
IT
RY
OF A PRIN
TE
D C
IRCU
IT
BOARD M
A
Y
C
H
AN
GE
W
ITHOU
T AFFEC
TING
N.E. D1 T
H
RU D
5 OU
TP
UT DIODES ARE A M
A
TCH
ED SET
.
N.F. R1, R9 BLEEDER R
E
SISTORS ARE A MATCHED
SET.
N.G. C1, C2 CAPACITORS ARE A MATCHED S
E
T.
N.H
. PLACE SW
IT
C
H
IN APPROPR
IAT
E POSI
TION FOR
INPUT V
O
LT
AGE.
THE INT
ER
CH
A
N
GEABI
LITY OF A C
O
MPLET
E BOARD
, THIS DIAGRAM
MAY
NOT
SH
OW
T
H
E E
XACT
C
O
M
P
O
N
E
N
TS
O
R
CI
RC
UI
TR
Y H
A
V
IN
G
A
CO
M
M
O
N
C
O
DE
N
U
MB
E
R
.
D
7 THRU
D11 OUT
PU
T DIOD
ES
AR
E
A M
A
TC
H
E
D SET
.
CON
NECTION SHOW
N IS FOR 380-41
5V OPERATION.
12
D
IN
P
U
T
R
E
C
TIFIE
R
D
13
10K 2W
C
W
(M
AX)
C
O
NT
RO
L
BAC
KGR
OUND
ME
TE
R
ME
TE
R
1
}
J2
11
8
10
4
9 3
2
7
13
12
6
14
5
BA
C
K
GR
OUND
BOARD
}
4
}
3 1 2
4 2 1 3
CURR
EN
T
SEN
SE
J1
J1
8
IG
B
T
MO
D
U
LE
IG
B
T
BO
A
R
D
DR
IV
E
J1
3
G E
1 2 3
6 4 5
J1
2
J5 J3
9 10
1
2
3
4 5 6
1. FOR M
A
CHIN
E
S
SU
P
P
LIED W
ITH INPU
T CABLE
2. FOR M
A
CHIN
E
S
N
O
T SUPPLIED W
ITH INPUT CABLE
1 2 3 4
VOL
TAGE
SE
N
S
E
CO
N
N
E
C
TI
O
N
J1
9
1
18
V
18
V
AUXI
LI
AR
Y
TR
AN
SF
ORM
ER
115
V
10
V
18
V
R W R B B U U
E
C
D7
U =
B
LU
E
21
2A
21
2
501 504
T4
27
5
35
1
35
0
35
2
35
3
35
4
35
5
35
6
35
7
35
8
358
35
9
35
9
360
360
361
361
36
2
36
2
36
3
363
29
0
291
J2
1
2 9 3 4
12 13
N O
1 2 4 3
6 7
5 8
10
9
R1
2
J18
, J3
7
J6, J2
7, J3
3
1
8
9
16
J19
1
4
2
3
J15, J
35
210A
22
4
20/
400
C8
287
28
8A
288
B
289
A
28
9B
364 36
5
366
36
8
369
37
2
376
N O
O =
OR
A
N
GE
N =
BR
OW
N
1 2 3 4 5 6
1 2 3 4 5 6
35
4
35
5
35
6
35
7
10K 2W
C
W
(M
AX)
C
O
NT
RO
L
HO
T S
T
A
R
T
R1
3
WI
R
E
S
IZ
E
WI
R
E
FEED
ER
CB
2
BOARD
+
12
C1
R4 R5 25 25
W
25 25
W
9
5
8
+
12
m
25 25W 25 25
W
9
C2
R6 R7
4
1
R1
7500 25
W
9A
308
307
40
2,
40
4
40
1,
40
3
4,
5
1,
8
R
R
W
R
W
401
, 403
1,
8
4,
5
402,
4
04
SWIT
CH
+
-
+ -
SWIT
CH
DR
IVER
BOARD
4
1
63
J10
25
BOARD
1 2 3 4
52
14
51
53
14
J8
PROTEC
TI
ON
52 22
00 F
45
0V
N.G.
N.
F.
N.
G. 2200
F
450V
(LEFT)
BOARD (RI
GH
T)
12B 9B
9B
R9
9A
53
12
A
H5
7500 25
W
52
1 2 3 4 5 6
314 31
5
317
J15
N.
F.
12A
12B
51
4
1
3
2 J11
7 3
2 1
8 12 13 14
}
J16
9D
3
6
4
1
J9
2
5
12B 12D
501
115
V
11
10
371
371
A
374
A
374
J2
2
240
241 242 243
244 245
246
O O
18
V
6V
N N
24
0
241 242
3
4 5 6
12 13
7 14 1 2 8
9 10 11
303 302 30
4
27
5
371
A
374
A
243 244
}
J2
7
11 12
J4
37
4
370 37
1
36
7
}
J2
8
}
371 374
1
} }
2 3 4
15 16
36
4
36
5
36
6
(+)
(-)
367
368
369
367
A
367
A
WI
R
E
T
Y
P
E
ST
A
IN
LESS
MI
LD
J B C G A D F H E I
TR
IG
G
E
R
GND
}
.045
.035
BG
PB
10
K
10
K
OPT
IO
N
A
L
RE
MO
TE
INT
ERF
A
C
E
1
6
7
12
{ {
115 VAC
3 2 5
4
1
U
W
R R Y N Y
2
1
32 33
32C 33C
32A 32B 33A 33B
7 8
15 16
J2
2
2
S
300W
28
9
288
2
S 300W
J3
3
}
22
3
7
J3
4
}
33C
1 2 3
4
5 6
43B 31
A
}
J3
5
42 33D
6A
M
P
J3
6
1 2 3 4
}
J3
7
J3
0
J3
1
503
A
R14
8 2 1 6 7 3 4 5
37
2
37
6
374
37
0
37
1
6 2 3 7 1 8 5 4
10
9 6 1 5 8 4 3 2
J2
4
J2
3
J2
6
J2
5
353 352
35
1
350
1 2 3 4 5 6
1 2 3 4 5 6
42 VAC 11
5
VA
C
}
J3
9
1 2
4
3 6
7
5 8
10
9
11 12
}
50
2
21
0
223
Y
305 24
5
211A 21
2C Y
24
6
301
J1
7
}
503
503A
212C 43
A
21
2B
32C
3 1 2
10 9 12 4 11 14
6
13
5
16
8
15
7
J3
8
503
RE
MO
TE
PR
OT
EC
TI
ON BOARD
S2
S3
(-) (+)
THE
R
M
A
L
OVE
R
LOAD
IN
DI
C
A
TO
R
R13
J1
0, J
13,
J1, J8,
J3, J9,
J5,
J7,
J3
4
J2, J3
6
A D
B
C
E
F G
H
I
J
J38
A
D
B
C
E
F
G
H
I
K
J39
L
M
N
J
P
INOUT O
F FRON
T PANE
L CONNECTORS
(REAR
VI
EW
)
12
34
1
2 3
4
P30
J30
12
3
4
5 2
3
4
5
6
1
6
P29,
P31
J29. J
31
12
3
4
5 2
3
4
5
6
1
6
P21
J21
12
3
9
10
2
3
10
11
1
45678
12
13
14
15
16
P22
J22
IN
LI
NE CONNEC
TOR
CAV
IT
Y NUMBER
ING SEQU
ENCE
(V
IE
W
ED FROM
W
IRE S
IDE OF
CONNECTOR)
4
5
6
7
8
9
11
12
13
14
15
16
J23
J24
J25
J26
P.C.
BO
ARD CONNECTOR C
A
VI
TY
NUMBER
ING SEQU
ENCE
MET
ER P
INOUT (
VI
E
W
ED FROM B
ACK O
F ME
TER)
1
1
6
6
B W
W B
R W B
B W R
W
R B B
PE
AK
CURR
E
N
T
PEA
K
CURR
EN
T
B W B R
N.I.
DEN
OT
ES A T
W
ISTE
D
W
IRE PAIR OR GR
OUP.
N.
J.
R
WW
52
31
6
311 313
14
309 310
CR
1
9A 9A
9A
9A
53
9D
N.
H.
9C 12
C
9B
12A
9B
12
A
9B
S7
RE
CO
N
N
E
C
T
9D
12C
12
D
309
A
310
A
309 310
CR
2
30
9A
310
A
12D
52
9B
12
B
51
12
B
12B 12
B
12B
12
B
14
6
22
4
503
A
224
A
J2
2
TH
ERM
OST
AT
D
A
R
LINGT
ON
HE
A
TS
IN
K
W W
C
B
A
C B A
D F
C B A
503
B
J11
, J12
, J1
4
J4, J1
7
J16, J
28
401 402 403 40
4
405
40
6
407 40
8
409 410 411 412
41
3
414
415
416
C
B
A
C
B
A
LOAD
LINE
PO
W
E
R
L
IN
E
FILT
ER
ASSEM
BLY
N.L.
N.
K
.
N
.K
. NO
T PRESENT ON EUR
OP
EAN
V
E
R
S
IONS.
N.L. P
R
ESENT
ON
EUROPEAN VER
S
ION
S.
N
.J.
N
O
T PRESENT ON EUR
OPEA
N
VERSIONS.
TO
R
O
ID
A
L
CO
RE
N.L.
A.01
W
IRI
NG
DI
A
G
RA
M
-
I
N
VE
RTE
C
S
TT I
I (CE) (FOR CODE 11367)
G4557