Electrical diagrams, G-8 schematic - chopper pc board, 22 to 32 vac – Lincoln Electric COMMANDER SVM145-B User Manual
Page 169
COMMANDER 300
G-8
ELECTRICAL DIAGRAMS
G-8
SCHEMATIC - CHOPPER PC BOARD
1N4936
D8
D5
com
com
com
com
+15
com
20
19
DIODES =
D3
J1
2
J1
3
D4
J1
1
+
t
.24
R1
D1
J1
6
50
25V
C2
4.75K
R18
4.75K
R20
1W
16V
DZ5
4.75K
R14
D2
50V
0.1
C1
4.75K
R16
500
50V
C5
com
com
22 to 32 Vac
FILENAME: M18709_2FA
UNLESS OTHERWISE SPECIFIED)
RESISTORS = Ohms (
1/4W
(UNLESS OTHERWISE SPECIFIED)
SUPPLY
R-
C-
LABELS
1A, 400V
D-
EARTH GROUND CONNECTION
POWER SUPPLY SOURCE POINT
X- 2
COMMON CONNECTION
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
.022/50V
10
(
MFD
CAPACITORS =
UNLESS OTHERWISE SPECIFIED)
FRAME CONNECTION
18709
M
VOLTAGE NET
DZ- 5
OCI- 1
LAST NO. USED
8
22
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
NOTES :
NUMBER.
150V
8A
Q1
+15
INPUT
PWM
to rectifier
19
(NOMINAL)
to rectifier
80VDC
CAPACITOR
and
FILTER
to negative output
20
to heatsink
10.0
R11
50V
0.1
C10
50V
0.1
C3
4.7
35V
C4
562
R3
1W
5.1V
DZ1
Vin + Vc
OUT
GND
N.I. IN
INV IN
X2
1W
8.2V
DZ4
1W
16V
DZ3
D7
/40V
3A
D6
/40V
3A
10.0
R15
10.0
R17
10.0
R10
4.75K
R12
10.0
R13
G1
G5
G3
G4
C5
G2
C3
C2
C1
C4
E5
E2
E4
E1
E3
G6
E6
C6
A1
M16100-24
4
16
10
13
9
6
12
15
18
19
7
14
11
17
8
20
5
3
1.00K
R4
50V
0.1
C7
10.0K
R21
J1
4
NC
NC
OCI1
5
2
8
3
6
4
1
7
825
R2
J1
5
10.0
R19
2.21K
R22
12-4-98C
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.