Tweco 251 Thermal Arc Fabricator - Manual (Page 66)

FABRICATOR 251
APPENDIX A-2 Manual No. 0-4847
APPENDIX 2: POWER SUPPLY CIRCUIT DIAGRAM
• Note the model and part number shown on the equipment nameplate
C B 1
2 A
24 V 5 0/ 60 Hz
CONTACTOR
Fan moto r
24 V Au x
Y1
Sol eno id
K1 \1
K1 \3
K1 \2
To rch
Tri gger
TS 2
L 1
L 1
L 3
T 1
T 3
1
S W 1
W 1
Earth
Bla c k
W h i t e
Green \Yell ow
L 2
2
JA/
5
JA/
6
JA/
7
JB/
5
JB/
10
JB/
4
Inp ut Ter minal B lock
BL
U
BL
U
31
B
O
R
N
JB/
11
32
A
W
H
T
2B
P
N
K
(9)
(12 )
(6)
(10 )
(5)
(11 )
(2) (1)
(4) (3)
(8) (7)
COARSE
FINE
SW2
SW3
[5]
[3]
[1] [2]
[4]
[6]
1 RED
1A RED
2 & 2A PNK
4A BLU E
4C B L U E
4 BLU E
10 B RED
8 BRN
8&8 A BRN
9&9 A BLK
9 BLK
10 &10 A RED
10 RED
10 C RED
11 &11 A GRY
14 &14 A BLU 2 0 8 V A C
15 &15 A ORN 2 3 0 V A C
4B B L U E
1D RED
1C RED 1B
R
E
D
JE/
1
JE/
2
2&
2A
P
N
K
BURNBACK
10 0K TS 1
TEMP
LED 1
JA/
2
JA/
1
FABR ICATOR 251
3 O
R
N
30
B
R
N
3
0
A
BRN
31 ORN
31
A
O
R
N
32
W
H
T
33 BLU
34
B
L
U
35
W
H
T
36
G
R
Y
37 ORN
39
R
E
D
38
A
W
H
T
38
W
H
T
54
B
L
K
56
R
E
D
(24 ) (23 ) (12 ) (11 )
11 GRY
12 &12 A BRN
(18 ) (17 ) (6) (5) 12 BRN
16 &16 A WHT
(22 ) (21 ) (10 ) (9)
16 WHT
13 &13 A VIO
(14 ) (13 ) (2) (1) 13 VIO
17 &17 A BLK
(16 ) (15 ) (4) (3) 17 BLK
(20 ) (19 ) (8) (7)
4
Voltage T erminal block
7B
7C
PCB 3
7978034
X1 /5
X1 /6
X2
/4
X3
/2
X2
/5
X3
/1
X3 /6
X3 /5
32
B
W
H
T
30 B BRN
58
B
R
N
59
G
R
Y
31 C ORN
30 C BRN 31 D ORN
3
Y2
M 1
S O L 2
S O L 1
Sol eno id
SPOOL
NORM
31
E
O
R
N
60 RED
X1 /4
A r t # A - 0 7 2 2 3
Main PCB 7978050 (PCB1)
B L U E
B L U E
Inp ut Ter minal B lock 5 6
R2