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G-14
ELECTRICAL DIAGRAMS
POWER WAVE 455/POWER FEED 10
G-14
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POWER WAVE 455 POWER PC BOARD SCHEMATIC
FEEDBACK
PRI. CURRENT
50V
0.1
C29
G
D
S
250V
38A
Q3
3.32K
R23
4.7
35V
C8
GND
IN
OUT
X8
GND
IN
OUT
X2
D23
PRI.
T1
7t
7t
4
7
5
6
3.32K
R54
3.32K
R55
3.32K
R52
50V
0.1
C11
1N4936
D12
1N4936
D13
J31
3
J31
12
50V
0.1
C1
J31
6
J31
11
SEC.
8t
T1
10
11
50V
0.1
C9
3.32K
R24
1W
16V
DZ2
50V
0.1
C24
+5Ve
c
SEC.
2t
T1
17
18
3.32K
R53
D1
400V
.0022
C30
1W
16V
DZ3
G
D
S
250V
38A
Q2
10W
4.7
R41
+40Vwf
PWM
15.0K
R31
50V
0.1
C18
68.1K
R19
2.43K
R17
CLIM
Vref
SYNC
OUTA
GND
Vc
OUTB
Vin
SHUT
RTCT
COMP
V-
V+
I+
I-
SG3846
X4
8
2
1
3
4
5
6
7
16
14
13
12
11
10
9
15
20V
1.8
C21
3.32K
R20
50V
820p
C27
133K
R32
2.21K
R34
15.0K
R18
750
R30
50V
2700p
C17
100V
22p
C23
1.50K
R21
20V
1.8
C22
100V
100p
C28
22.1K
R22
82.5K
R36
VOLTAGE
FEEDBACK
J32
1
51
.47mH
L7
J31
10
10W
100
R50
10W
100
R40
10W
100
R43
10W
100
R51
15J
50V
TP1
33
100V
C4
400V
.0047
C12
SEC.
B
8t
8t
A
C
T1
B2
15A
600V
D21
15A
600V
D20
B1
J31
9
J31
1
J31
8
Wire
Vcc(+15)
TESTVa
comF
+40Vwf
WIRE FEEDER POWER
50
WELD & CURRENT CONTROL
GND
CTRL
T1
e
a
WELD & CURRENT CONTROL
+5Va
+15Va
comF
c
+5Vc
+40Vf
-15Va
RS 232
+5Ve
WELD & CURRENT CONTROL
CAN
WIRE FEEDER
WELD & CURRENT CONTROL
INVERTER POWER SUPPLIES
USE
VOLTAGE
AMPH.
BRD
T1
T1
CTRL
TRANS
Feeder
"WT"
To
Test Points
"BK"
10W
4.7
R39
G
3026
L- 8
T- 1
VOLTAGE NET
FRAME CONNECTION
DATE
SCALE
CLEVELAND, OHIO U.S.A.
DR.
2-21-97
CHK.
THE LINCOLN ELECTRIC CO.
LC
NONE
Q- 3
TYPE
SUP'S'D'G.
EQUIP.
R- 55
LAST NO. USED
DZ- 6
C- 36
TP- 2
SUBJECT
LABELS
X- 8
D- 26
(
.022/50V
NUMBER.
NOTES :
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
CAPACITORS =
GENERAL INFORMATION
1/4W
Ch'ge.Sht.No.
ELECTRICAL SYMBOLS PER E1537
RESISTORS = Ohms (
G
SHT.
NO.
EARTH GROUND CONNECTION
3026
POWER SUPPLY SOURCE POINT
SUPPLY
COMMON CONNECTION
UNLESS OTHERWISE SPECIFIED)
(UNLESS OTHERWISE SPECIFIED)
DIODES =
1A, 400V
MFD
UNLESS OTHERWISE SPECIFIED)
FILE: G3026_2E1
Vin + Vc
OUT
GND
N.I. IN
INV IN
X6
10.0
R44
Vcc(+15)
Vcc(+15)
35V
4.7
C34
12.1K
R37
1.0A
30V
D24
475
R38
SWITCH_GND
1.0A
30V
D25
10.0
R45
50V
0.1
C32
1.0A
30V
D14
10.0
R47
10.0
R49
1.0A
30V
D15
10.0
R48
10.0
R46
Vin + Vc
OUT
GND
N.I. IN
INV IN
X5
.1
7W
R28
50V
0.1
C35
50V
0.1
C33
.1
7W
R27
475
R35
PRIMARY SWITCHING CIRCUIT
J31
2
400V
.001
C15
J31
4
3A
600V
D6
3A
600V
D9
1mH
L3
50V
0.1
C10
2.21K
R25
50V
0.1
C2
2.21K
R2
GND
IN
OUT
X3
OUT
IN
GND
X7
2.21K
R1
1mH
L4
1N4936
D10
1N4936
D11
3A
600V
D7
1mH
L5
4.7
35V
C5
3A
600V
D8
2.21K
R26
50V
0.1
C6
50V
0.1
C13
243
R11
ADJ
IN
OUT
X1
1.50K
R12
4.7
35V
C25
D2
50V
0.1
C26
4.7
35V
C3
J31
7
+15Va
D4
TESTVa
1.50K
R13
1.00K
R9
+5Va
-15Va
a
500mA
500mA
50V
0.1
C19
CAN
125mA
+5Vc
681
R15
1N4936
D18
1N4936
D17
1mH
L8
1N4936
D16
1N4936
D19
1mH
L6
Board
681
R16
e
To
J31
5
150
30mA
RS232
1000
35V
C14
Control
5W
20
R33
J32
4
SEC.
T1
2t
2t
2t
2t
12
14
16
15
13
D22
1.0A
30V
D26
1.00K
R8
Vcc(+15)
1W
3.3V
DZ6
1W
43V
DZ4
10W
4.7
R42
4.75K
R7
PROTECTION CIRCUIT
OVER/DOUBLE VOLTAGE
SWITCH_GND
400V
.0022
C31
1W
43V
DZ5
50V
0.1
C20
+40Vwf
J32
5
4.7
35V
C16
5W
1500
R4
5W
1500
R3
Vcc(+15)
1N4007
D3
5W
1500
R6
5W
17V
DZ1
5W
1500
R5
160J
320V
TP2
50
25V
C36
5W
270
R14
comF
65 Vdc +/- 20%
1N4007
D5
J32
2
630Vdc
.47
C7
46VAC
Rect.& Filtered
INVERTER WELDERS
SCHEMATIC, POWER PCB
KJ
XC-RW
11-14-97A
12-4-98A
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.