ESAB Precision Plasmarc Installation, Operation And Maintenance Manual For Residential Installation page 151
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- Installation, operation and maintenance manual (198 pages)
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SECTION 6
Schematic- Precision Plasma Power Source
Part 2
Part 2
Part 2
Part 2
P2
J2
1
2
TB4-1
3
4
15
TB4-2
7
9
8
10
5
6
14
11
9
6
12
A
B
K3
9
6
13
A
B
K4
9
6
A
B
K5
9
6
120VAC RELAY
P1
J1
A
B
K6
7
9
10
1
2
3
9
6
A
B
K8
8
4
PLC MODULE #1
5
6
MOD1
POWER MODULE #1
1
1
L
1
0 0 0 0
2
2
L
2
0 0 0 1
HSCOMM
3
3
4
4
0 0 0 2
5
5
0 0 0 3
6
6
0 0 0 4
7
7
0 1 0 0
8
8
0 0 0 6
COMM 2
H.F.
0 0 0 7
9
9
0 1 0 1
10
10
COMM 3
11
11
PLC
0 1 0 2
12
12
COMM 4
13
13
0 1 0 3
14
14
COMM 5
15
15
0 1 0 4
16
16
0 1 0 5
17
17
0 1 0 6
ZD3
18
18
COMM 1
0 1 0 7
180 VAC
19
19
COMM 6
20
20
0 1 0 8
A
B
21
21
0 1 0 9
K7
22
22
0 1 1 0
4
23
23
24VDC
0 1 1 1
6
24
24
-24VDC
COMM 7
PLC1
P7-3
PCB
Isolation Amplifier And
Fault Signal PCB
A
B
K2
120VAC RELAY
10
9
8
7
6
5
4
3
2
1
SH1-2
SH1-1
TB3-1
UNUSED
CIRCUITS
TB3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
F3
15
1A
16
17
18
19
TB6-5
20
R6
21
39K
2W
22
TB6-4
R5
23
39K
2W
24
TB6-2
FRONT PNL
H2
PILOT ARC
SELECTOR
L1
S2
5
H1
2
R7
C1
10K
OHM
20uf
8W
400V
D1
R7
10K
OHM
8W
R14
20 OHM
50W
R15
20 OHM
50W
6-19
TROUBLESHOOTING
CNC
I/O
J1
J1
A
EFC
A
B
B
C
Ref. 6.4
C
D
P5
D
E
1
E
F
5
F
P2
G
2
G
1
3
H
H
2
4
J
J
3
K
K
L
4
L
M
9
H.F.
M
N
N
10
P
I
5
R
6
S
T
7
U
8
V
J2
N
START SIGNAL FROM
CNC TO P.S., RELAY CLOSING
M
I
ARC ON SIGNAL FROM P.S.
TO CNC, RELAY CLOSING
G
ARC ON SIGNAL
FROM P.S. TO CNC,
TRANSISTOR
START SIGNAL FROM
CNC TO P.S., 120VAC
START SIGNAL FROM
CNC TO P.S., 24VAC
L
+10VDC REMOTE CURRENT
SETTING FROM CNC TO P.S.
J
C
VOLTAGE DIVIDER, (+)
H
VOLTAGE DIVIDER, (-)
EMERGENCY STOP FROM CNC TO P.S.
E
RELAY/CONTACTOR NORMALLY CLOSED
F
OPEN IN CASE OF EMERGENCY
A
FAULT SIGNAL FROM P.S. TO CNC
RELAY CLOSING, DRY CONTACT
B
K
120VAC PREFLOW SIGNAL
FROM CNC TO P.S.
D
6
HI
4
R7
20 OHM
20 OHM 300W
300W
R1
R8
3
LO
R10
20 OHM 300W
1
3.1 OHM
R9
300W
20 OHM 300W
P1-2
P1-1
START UP
PA
PCB2
P1-3
838131
JUNCTION
BOX
Ref. 6.7
TO CUTTING MACHINE CNC
CONNECTOR CHASSIS GND SUPPLIED
BY CUTTING MACHINE GROUP
WORK
TO JUNCTION BOX J1
PILOT ARC
TORCH
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