Tweco 281 Thermal Arc Fabricator - Manual (Page 70)

FABRICATOR 281
A-4 April 10, 2006
APPENDIX 3: POWER SUPPLY CIRCUIT DIAGRAM
• Note the model and specification number shown on the equipment nameplate
24V 50/60Hz
CONTACTOR
Fan motor
32V Aux
Y1
Solenoid
K1\1
K1\3
K1\2
MIG Gun Switch
TS2
L1
1
L1
L2 T3
T1
Earth
Black
White
Green\Yellow
L2
2
JA/5
JB/7
JB/9
JA/6 JA/7 JB/5 JB/10 JB/4
Input Terminal Block
BLU BLU
POS
JB/11
NEG
2B PNK
(9)
(12)
(6)
(10)
(5)
(11)
S2
T2
F2
S3
T5
F3
S1
F1
(2) (1)
(4) (3)
(8) (7)
COARSE
FINE
SW2
SW3
[5]
[3]
[1] [2]
[4]
[6]
T1
1 RED
1A RED
2 & 2A PNK
4A BLK
4C BLK
4 BLK
10B RED
8 BRN
8&8A BRN
9&9A BLK
9 BLK
10&10A RED
10 RED
10C RED
11&11A GRY
14&14A BLU
15&15A ORN
0V
208V
230V
4B BLK
1D RED
1C RED
SW1
W1
1B RED
JE/1 JE/2
2&2A PNK 2A
CB1
CB1
BURNBACK
100K
TS1
M1
TEMP
LED1
JA/2 JA/1
FABRICATOR 281
3 ORN
40B BLK 40A BLK
30 BRN
37A RED
32 WHT
33 BLU
34 BLU 35 WHT
36 GRY 39 RED
38A WHT
38 WHT
47 GRY
48 ORN
54 BLK 56 RED
T1
TRANS 251US COIL
(24) (23) (12) (11) 11 GRY
T3
T4
12&12A BRN
(18) (17) (6) (5) 12 BRN
16&16A WHT
(22) (21) (10) (9)
16 WHT
13&13A VIO
(14) (13) (2) (1) 13 VIO
17&17A BLK
(16) (15) (4) (3)
17 BLK
(20) (19) (8) (7)
208
Input Terminal block
7B BLK
7C BLK
PCB 3
7978034
X1/5
MIG GUN
SPOOL
X1/6
X2/4 X3/2 X2/5 X3/1
X3/6
X3/5
R2
31 ORN
40 BLK
58 BRN 59 GRY
37 RED
1 2 3 4 5 6 7 J1
7977947
5 4 3 2 1 6 7 TB1 7977948
UMBILICAL CABLE
30C BRN
31B BLK
47 GRY
48 ORN
SW4 - 32 VAC
31 BLK 27 RED 25 BLU 30 BRN 24 WHT
24 WHT
31A BLK
26 BLK
31A ORN
32A WHT
Y2
K2
Solenoid
31B ORN
60 RED
X1/4
SPOOL
NORM
Art # A-07465
Input Terminal Block
3
5 6
4
2A