ESAB PCM-50i Instruction Manual page 27

SECTION 6
12
REF 12
FIGURE 6-1
17
11
10
ITEM QTY
NO. REQ.
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 1
17 2
18 2
19 2
20 6
21 2
13
9,8 7
Figure 6-3. PCM-50i (Series A) Power Source (Left Side View)
PART
NO.
32949LG COVER
13735308 RELAY, 120 V AC, 20 A
951182 MOTOR, FAN
35387 CABLE, INPUT POWER, 10 FT LG, 4-COND.
13734727 STRAIN RELIEF, POWER CABLE
32914 TRANSFORMER ASSY., CONTROL
951635 CAPACITOR, 1300 µF, 450 V DC
31490 PC BOARD ASSY., HF/HV IGNITION
951179 TRANSFORMER, HIGH VOLTAGE
38037 P/C BOARD ASSY., START-UP
32962 TRANSFORMER ASSY., MAIN
31488 P/C BOARD ASSY., SHUNT
951962 RESISTOR ASSY, 6 OHM, 75 W
951023 RECTIFIER, SILICON CONT., 70 A, 1200 V (PAD-951196)
951915 BRIDGE, INPUT, 3-PHASE, 75 A, 1600 V (PAD-951192)
17750010 RESISTOR, 10, 50 W, N.I. (PAD-951194)
993716 CAPACITOR, 1 µF, 600 V DC
17313500 RESISTOR, 5 KOHM, 20 W
951493 CAPACITOR, 0.068 µF, 630 V DC
950591 VARISTOR, METAL OXIDE
951515 CAPACITOR, 0.047 µF, 660 V DC
18
1
20
6
DESCRIPTION
REPLACEMENT PARTS
2,19
3
15
REF 5
FIGURE 6-6
21,20
4
VIEW A-A
5
16
14
CIRCUIT
SYMBOL
K1
M1
T2
C1,2
HV1
T5
PCB5
T1
PCB4
R11
SCR1
BR1
R10
C3,15
R2,15
C11,12
MOV1-6
C16,17
27