Section TOC
Master TOC
| ELECTRICAL DIAGRAMS | ||
| WIRING DIAGRAM - ENTIRE MACHINE - CODE 10990 - (L11979) |
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POWER MIG 255 (208/230 V)
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BOARD)
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
COLOR CODE:
B - BLACK
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
J10
1 | 2 |
DISPLAY BOARD
4 3 | 5 | 6 | 8 7 |
352
CONTROL BOARD
253 | 1 |
252 | 2 |
1
J8
2
1
J3
7
1 | 3 |
| 1 | 4 | 1 | 5 |
J6 |
| J1 |
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| J4 |
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| J9 |
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| |
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| J7 |
| |
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| J12 | 5 | 8 |
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4 | 6 | 6 | 10 | |||
6 |
| 1 |
| 7 | 1 | 8 |
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| J2 |
|
| J5 |
|
12 |
| 8 |
| 14 | 9 | 16 |
W - WHITE
R - RED
U - BLUE
INDICATES CONNECTOR CAVITY NO.
** CAVITY NUMBERING SEQUENCE
(NON-LEAD SIDE OF CONNECTOR)
1 2
OFF AND REVERSE LEAD CONNECTIONS AT CABLE CONDUCTOR STRAP AND WORK STUD.
R4
552 | 551 | 550 | 515 | 500 |
254A
R3
FAN
MOTOR
353
251 | 3 |
552 | 4 |
5515
2566
| 7 | J2 | |
550 | 8 | ||
| |||
254 | 9 |
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50010
11
12
13
51514
TOC
J10 |
|
10 | 1 |
J11 | 256 | 253 | 254 |
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| |
3 | 4 |
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ARC
VOLTAGE
251 252
WIRE FEED
SPEED
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| J7 |
390 | 392 | 265 | 1 |
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| 263 | 2 |
|
| 262 | 3 |
|
| 267 | 4 |
| GAS | 264 | 5 |
1
2
3
4
5
SOLENOID | 260 | 6 |
|
6
J4
TO SINGLE PHASE SUPPLY LINE
W
B
GUN |
| J11 ** |
|
TRIGGER |
| ||
1 | 324 | 1 |
|
2 | 325 | 2 | 325 |
3 |
| 3 |
|
4 |
| 4 | 324 |
L1 L2
H3 H4 H2 L1 L2
230V 208V
H1 H4
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| R |
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| U |
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| 354 | 209R | 208R |
| B |
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| SECONDARY VOLTAGES SHOWN | D2 |
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| ARE NO LOAD RMS VALUES | BAFFLE |
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| B | |
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| MOUNTED |
| - |
| W |
| X8 | X8 | RECTIFIER |
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| |
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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 |
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| 208S |
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| X7 | X7 |
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H1 | X1 |
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| G1 |
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| SCR 1 |
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| 28.4V |
| 204S |
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| W B |
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| SCR HEATSINK |
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| X2 |
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| ASBLY |
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H2 | X3 |
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| SCR 2 |
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| 28.4V |
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| X4 |
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| R | T | WIRE |
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| G2 |
| ||
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
320B 
325B
SCR HEATSINK | OUTPUT CHOKE |
ASSEMBLY | THERMOSTAT |
THERMOSTAT |
|
FOR SPOOL 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 | ||
| |||
| 8 |
| |
515 | 9 |
| |
206A | 10 |
| |
| 11 |
| |
| 12 |
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DRIVE |
RECONNECT PANEL
H1
H3 | U | A | MOTOR/ |
209S | C | ||
| B | GEARBOX |
TO GROUND PER NATIONAL ELECTRICAL CODE
LINE
GSWITCH S1
POWER |
|
| H |
TRANSFORMER |
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| D1 | ||
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 |
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POWER FACTOR |
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| OUTPUT | |
ENHANCEMENT |
|
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| CHOKE | |
CHOKE |
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207
TO
WORK
R.F. FILTER | GND |
|
209 | 1 |
208 | 2 |
206 | 3 |
206S | 4 |
205 | 5 |
| 6 |
3527
X98
354 | J5 |
9 | |
325B | 10 |
GND | 11 |
320 | 12 |
207 | 13 |
| 14 |
353 | 15 |
X8 | 16 |
G21
2042
G13
X7 | J6 |
4 | |
X6 | 5 |
X5 | 6 |
A
L11979
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
