Power P.c. Board Schematic (L10616 - Lincoln Electric PRO-CUT 55 Service Manual

Power P.C. Board Schematic (L10616)

+15V
4
C3
C14
X2
LM224
11
R1
10.0
DZ1
6.2V
1W
5
T1 G1
GATE
8 S1
3
G2
J10
GATE
1
6
S2
10
DRIVE
4
J10
S3
3
GATE
12
9 G3
6
FROM
S4
GATE
CONTROL
G4
7
BOARD
(PWM DRIVE)
DZ9
6.2V
1W
TEST_E
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 provided 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
+15V
4
X3
LM224
11
TEST_D
R80
10.0
DZ2
15V
1W
1.00K 1.00K 1.00K
1.00K
C1
DZ3
.0047
15V
50V
1W
A2
12
C3
13 15
G3 C4
16 11
G4 E3
R25
E4 14
10.0
10
K1
8
K2
9
A1
A2 7
2
C1
10.0
3 5
G1 C2
R6
6 1
G2 E1
R20 E2 4
TEST_C
10.0
DZ5
.0047
6.2V
1000V
R79
1W
10.0
DZ6
15V
C5
1W
1.00K 1.00K 1.00K
1.00K .0047
50V
DZ7
15V
1W
10.0
TEST_B
R41
10.0
6.2V
R67
1W
DZ10
15V
1W
C8
1.00K 1.00K 1.00K 1.00K
.0047
DZ11
50V
15V
1W
A1
C3 12
13 15
G3 C4
10.0
16 11
G4 E3
R82
14
E4
K1 10
8
K2
9
A1
7
A2
C1 2
10.0
3 5
G1 C2
R81
6 1
G2 E1
TEST_A
C12
4
R62 E2
.0047
10.0
DZ12
1000V
R46
DZ13 10.0
15V
C11
1W
1.00K 1.00K 1.00K 1.00K
.0047
50V
DZ14
15V
1W
NOTE: 202,203,206,&207 BOLT ON WITH FILTER CAPS
UNDERVOLTAGE PROTECTION
13
D16 R98
14
X3 22.1K
12
C18
C19
18
R117 1.0
15V
35V
1.00M
CR1
RECONNECT
4 3
206
209
CR1
POSITIVE INPUT RECTIFIER
6 5
R8
R10
2.7 5W
PEAK DETECTOR
100
D15
2.7 10W
D8
5W
1A
1000V
C2
.0047
205
1000V
C15
DZ15
TRANSFORMER 50
12V
25V
1W
PRIMARY
1K
FILTER 5W
325VDC
CAPACITOR
(NOMINAL)
1K
TRANSFORMER
5W
PRIMARY
R110 R109
208
+
1K 1K 1
C6 5W 5W
X1 8
REF
TL431
R111 R112 -
6
R27
D9
5W 1K 1K
2.7
1A 5W 5W
1000V
2.7
5W
203A
RECONNECT
MISCONNECTION
202A
+15V
PROTECTION
RECONNECT
R114
1.00M
221K
2.7
10
5W
X2
8
9
221K
D10
1A
1000V
2.7
5W
DZ16
5.1V C16
1.0 Q4
1W
35V
1A
C9
100V
.0047 204
1000V
TRANSFORMER
PRIMARY +15V
1K
5W
325VDC FILTER
(NOMINAL) CAPACITOR
1K
5W
201
R104 R103
TRANSFORMER 1K 1K
5W 5W
PRIMARY
R105 R106
R69
1K 1K
2.7 5W
D11 5W 5W
1A
1000V
2.7
DZ8
5W 15V
1W
NEGATIVE
INPUT RECTIFIER
1.00K
J10
+15V
R73 1
5 1
2
OCI3 CR1
(RELAY DRIVE)
CNY17-3V
D7
FROM CONTROL BD.
1
4 6 2
Q5
J10
1A
C17
100V 4
150p
50V
R16
R13 R14 R15
150K 150K 150K 150K
R11 R12 1.00K
R72
100 100 R18
100 5 1
10W 10W
OCI1
Q1
DZ4
CNY17-3V
CAPACITOR
4A
12V
900V 1W
4 6 2
PRECHARGE
C4
150p
50V
+15V
D2
R116
+15V
1.00M
5
7
X2
2.8K
6
D3
C7
C20
27
27
35V
35V
OVERVOLTAGE
562
PROTECTION
+15V
R53
R115
10.0K 1.00M
6.19K 3
1
X2
2 D5
R51
D1
150K
D4
D17
150K
V/F CONVERTER
D12
1.00K
R86 R87 R88 R89 R91
150K 332K 16.5K 6.19K 15.0K
1 5
OCI2
2
5
CNY17-3V
X3
1
7
X3 R90 2 6 4
3
6
D14 6.19K
R92
15.0K
R83 R84 R85
+15V
150K 332K 10.0K
D13
R97
1.0
1W Q2
C13 1A 9
0.27 100V
Q3 8
X3
50V
1A
10
R94
100V
47.5K
D6
207A
300 Volts = 1kHz (calibrated)
dF = 9.5136 dV
G-4
12
X2
14
13
J10
5
TO CONTROL BD.
C10
150p
50V
J10
2
+15V
L10616
5-29-98H
PRO CUT 55