Section TOC
Master TOC
WIRING DIAGRAM - ENTIRE MACHINE - CODE 10986 - (L11980)
POWER MIG 255 (230/460/575 V)
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BOARD)
1 | 1 | 3 |
| 1 | 4 | 1 | 5 |
J8 | J6 |
| J1 |
|
| J4 |
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| J9 |
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| J7 |
| ||
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| ||
2 | 4 | 6 | J12 | 5 | 8 | 6 | 10 |
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| |
1 | 6 |
| 1 |
| 7 | 1 | 8 |
J3 |
|
| J2 |
|
| J5 |
|
7 | 12 |
| 8 |
| 14 | 9 | 16 |
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
COLOR CODE:
B - BLACK
W - WHITE
R- RED U - BLUE
INDICATES CONNECTOR CAVITY NO.
** CAVITY NUMBERING SEQUENCE
(NON-LEAD SIDE OF CONNECTOR)
1 2
NOTES:
N.A. WELDING CABLE MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE APPLICATIONS.
N.B. THIS DIAGRAM SHOWS THE "ELECTRODE" POLARITY "POSITIVE". TO CHANGE POLARITY, TURN THE UNIT OFF AND REVERSE LEAD CONNECTIONS AT CABLE CONDUCTOR STRAP AND WORK STUD.
J10
1 | 2 |
|
|
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R4
DISPLAY
BOARD
4 3 | 5 | 6 | 7 | 8 |
552 | 551 | 550 | 515 | 500 |
254A
R3
352
FAN
MOTOR
353
CONTROL BOARD
253 | 1 |
252 | 2 |
251 | 3 |
552 | 4 |
5515
2566
| 7 | J2 | |
550 | 8 | ||
| |||
254 | 9 |
|
50010
11
12
13
51514
TOC
J10 |
|
10 | 1 |
J11 | 256 | 253 | 254 |
|
|
| |
3 | 4 |
|
|
ARC
VOLTAGE
251 252
WIRE FEED
SPEED
|
|
| J7 |
390 | 392 | 265 | 1 |
|
| 263 | 2 |
|
| 262 | 3 |
|
| 267 | 4 |
| GAS | 264 | 5 |
1
2
3
4
5
SOLENOID | 260 | 6 |
|
6
J4
GUN |
| J11 ** |
|
TRIGGER |
| ||
1 | 324 | 1 |
|
2 | 325 | 2 | 325 |
33
44 324
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| R |
|
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|
| U |
|
|
| 354 | 209R |
| 208R | B |
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|
| |||
| SECONDARY VOLTAGES SHOWN | D2 |
|
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| |
| BAFFLE |
|
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| B | ||
| ARE NO LOAD RMS VALUES |
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| |||
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| MOUNTED |
| - |
| W |
| X8 | X8 | RECTIFIER |
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| |
|
| DIODE |
|
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|
| |
| 116.6V |
| BRIDGE |
|
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|
| X9 | X9 |
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| X5 |
| + |
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| |
| X5 |
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| 14.2V |
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| X6 | X6 |
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| |
| 14.2V |
|
| 208S |
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| X7 | X7 |
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| |
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H1 | X1 |
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| G1 |
|
| |
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| |||
J12
1
2
3515B
4555
5206B
6
7B
8W
| 7 |
261 | 8 |
| 9 |
| 10 |
| FOR TIMER |
| OPTION |
SNUBBER |
|
| |
BOARD | 1 | 204 | |
| 2 | 208S | |
| 3 | 208 | |
J9 | 4 | 208R | |
5 | 204S | ||
|
6209S
7209
8209R
320
GUN OPTION
7
8
9
10
206B 1
B2
3
W | 4 |
515B | J1 |
5 | |
555 | 6 |
3257
3248
390 | 1 | J8 | |
392 | 2 | ||
| |||
SCI | 1 |
| |
325A | 2 |
| |
543 | 3 |
| |
326 | 4 |
| |
| 5 |
| |
541A | 6 | J3 | |
SCI | 7 | ||
|
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H5 | H2 | H4 | H3 | H1 | L1 | L2 | |
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5
2 4
3 1
RECONNECT PANEL
(SHOWN CONNECTED FOR 230V)
W
L1 L2
H1 H4
H1
LINE
SWITCH
S1
|
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| SCR 1 |
|
|
H2 | 28.4V | 204S |
| W | B |
| SCR HEATSINK | ||||
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| |
H5 | X2 |
| ASBLY |
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H3 | X3 |
| SCR 2 |
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| |
| 28.4V |
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H4 | X4 |
| R | T | WIRE |
| G2 | DRIVE | |||
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| U | A | |
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| MOTOR/ | ||
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| 209S | C | |
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| B | GEARBOX | |
POWER |
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| H |
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TRANSFORMER |
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| D1 |
|
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320B 
325B
SCR HEATSINK | OUTPUT CHOKE |
ASSEMBLY | THERMOSTAT |
THERMOSTAT |
|
TO
WORK
FOR SPOOL
| 8 |
515 | 9 |
206A | 10 |
| 11 |
| 12 |
209 | 1 |
208 | 2 |
206 | 3 |
206S | 4 |
TO SINGLE PHASE SUPPLY LINE
B
205 | 5 |
| 6 |
Section TOC
Master TOC
G
TO GROUND PER
NATIONAL ELECTRICAL
CODE
206
|
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| 206S | 205 |
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| + - |
| |
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| 206B |
|
C1 | C2 | C3 |
| R1 | 15 OHMS |
| 100 W | ||||
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+ | + | + | C1 THRU C3 | 204B |
|
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| 31,000 MFD |
| |
|
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| 50V |
|
|
POWER FACTOR |
|
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| OUTPUT | |
ENHANCEMENT |
|
|
| CHOKE | |
CHOKE |
|
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207
R.F. FILTER | GND |
|
3527
X98
354 | J5 |
9 | |
325B | 10 |
GND | 11 |
320 | 12 |
20713
14
353 | 15 |
X8 | 16 |
G21
2042
G13
X7 | J6 |
4 | |
X6 | 5 |
X5 | 6 |
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A
L11980
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.
POWER MIG 255
