Filter
Top Products
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro-
vided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the
machine.
ELECTRICAL DIAGRAMS
G-28
PC BOARD ASSEMBLY - 40VDC BUS PC BOARD
IN
CLU
DE
S25251 IN
S
UL
ATIO
N
FOR PARTS ORDERS ONLY
L11745-1
INVERTER WELDERS
EXCITER BOARD
M
ODULE ASSE
MB
LY
1:1
L1
1745
F
EI
-
DO N
OT S
CA
LE
TH
IS
D
RAW
ING
DRA
WN
B
Y:
DE
SI
GN INFORM
A
TION
E
NGIN
EE
R:
APPROVED:
REF
EREN
CE:
EQU
IP
ME
NT
TYPE
:
SU
BJ
EC
T:
SCA
L
E:
MATE
RIAL
DISPO
SITION:
APP
ROV
AL
DAT
E:
PRO
JE
CT
NU
MBE
R:
NA
C
RM3
8081
1
PA
GE
___
OF
___
1
ENGINE
ERING CONTROL
L
ED
MANUFACTURER:
No
DOCU
ME
NT
NU
MBER:
DOC
UME
NT
REVISI
O
N:
T
HIS
DOC
UME
N
T C
ON
TAINS P
R
OP
RIETA
RY IN
FO
RMATIO
N
OW
NE
D BY L
IN
C
OLN
GLOBAL, IN
C. A
N
D MAY NOT BE
D
UPLI
CA
TE
D,
C
OMMU
NI
CA
TE
D
TO OT
HE
R PA
R
TIES O
R
USE
D
FO
R A
NY P
U
RP
OSE WIT
HOU
T THE E
X
PRESS
W
RITTE
N PE
RMISSIO
N
OF LIN
C
OLN
GLOBAL, IN
C.
PROPRI
ETA
RY & CONFIDE
NTIAL:
A
8/9/2006
NE
W
CHANGE DET
AI
L:
WITH PUBLISHED
STANDARDS.
MAT
ERIAL TOLERANCE (
"
")
TO A
G
REE
O
N ALL AN
GLES IS
±
.5
OF A
DEG
REE
t
ON
3
P
LA
C
E
DECIM
ALS
IS
±
.0
02
i
n.
(
±
0.05
mm)
O
N 2
PLACE DEC
IMALS IS
±
.02
in
. (
±
0.5
mm)
U
NLESS
OTHERW
ISE
SPE
C
IF
IE
D
TOLERA
N
CE
:
MANUFACTURIN
G
TOLERANCE PER
E2056
IF PRINT
ED
@ A2 SIZE
U
NIT
S:
IN
CH
S
O
L
I
D
E
D
G
E
ST
RB
L11745-1
NOTES:
N.A. ASSEMBLE ITEM 2 WITH HEADERS LOCATED AS SHOWN.
N.B. MOUNT THE DC BUS & TIGHTEN THE MODULES PER E3875.
N.C. APPLY A SMALL DROP OF ITEM 3 TO THE FIRST 2
-
3 THREADS OF THE SOCKET HEAD CAP SCREW.
N.E. APPLY FILM OF COMPOUND TO MOUNTING SURFAC
E OF ITEM 4 THERMOSTAT.
MOUNT WITH TERMINALS POSITIONED AS SHOWN.
1
4
2
N.
E.
N.A.
,
N.B.
,
N.C.
PLA
IN
WASHER
1/4
-
20HN
ITEM
PART NO.
DESCRIPTION
QTY
1
M19559
HEATSINK 1
L11078-2 40V DC BUS P.C. BD. ASSEMBLY 1
S25930-1 TORZ BUTTON HEAD SCREW 2
S9262-23 PLAIN WASHER 2
CF000017 1/4-20HN 2
E2529
JOINTCOMPOUND .004 OZ.
*
3 E1777-2 RETAINING COMPOUND (LOCTITE 242)
2 cc
T13359-12 THERMOSTAT 1
S8025-80 SELF TAPPING SCREW 2
E2529
ELECTRICAL JOINTCOMPOUND
.001 .OZ
* THESE ITEMS NOT SHOWN
2
4
CA
UTI
O
N:
THI
S
D
EV
IC
E
I
SSU
BJ
E
CT TO D
AM
AGE BY
ST
ATI
C
EL
E
CTRI
CIT
Y
.
SEE
E2454 B
EFO
RE
H
AN
DLI
NG
.
G-28
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC