ESAB PCM-875A - Page 97

SECTION 6 PCM-875A Plasmarc System Troubleshooting
6-13
230V Schematic Part 2
V
P5-5
0.047uf
660V
P
C
B
5
V
P1-3
V
P1-2
P1-6
V
(-)
(+)
G
N
D
5
C
2
3
C
1
4
X2
T
3
X1
2500 PF,15KV
C
1
3
H2
1
X1
T
B
2
H1
T
5
S
G
2
X2
T
O
R
C
H
2500 PF,15KV
W
O
R
K
L2
.82UF 630VDC
P.A.
L3T3
K1
R13
C20
P1-1
V
K1
T2 T1
K1
C21
L1
.022UF, 1KV
GND 3
PILOT
ARC
330K ,1W
.022UF
P2-13
P2-12
G
N
D
2
T
B
1
-
2
G
N
D
4
.01UF,250 VAC
H1
.01UF
1KV
C
1
1
T
B
1
-
1
.01UF
C
1
2
1KV
H2
C
9
115 VAC
VV
250VAC
K
1
B
A
SHIELD
P5-1
P5-2
V
C
1
8
V
P5-6
V
P
L
2
C
1
7
250VAC
.022UF
4T
L
3
-
+
TORCH SWITCH
J
1
V
2
V
1
SIGNAL TO CNC
VOLTAGE DIVIDER
SIGNAL TO CNC
(CONTROL BOARD)
P
C
B
1
5
P6-2
P2-2
P2-3
S
O
L
1
VVV
P1-12
P1-11
P6-1
V
1
VV
1
NOT USED ON CONSOLES
2
1
2
75mA
60V
Z
D
1
S
3
F
S
2
4
0558003357
0558003356 &
P2-3
P2-4
VV
V V
P6-9 P6-7
S
2
2
6
1
3
(SEE CHART)
T
B
4
1234
(+) (-)
5 6
TB4-6
TB4-5
TB4-4
TB4-3
TB4-2
TB4-1
}
FROM CNC
}
ARC ON
START SIGNAL
}
1
2
3