Power Wave 455 Power Pc Board Schematic - Lincoln Electric 10372 Service Manual

G-14

POWER WAVE 455 POWER PC BOARD SCHEMATIC

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