Wiring Diagram - Entire Machine - Code 10990 - (L11979 - Lincoln Electric POWER MIG 255 SVM144-B Service Manual

G-5

WIRING DIAGRAM - ENTIRE MACHINE - CODE 10990 - (L11979)

CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BO ARD)
4
1 1 3 1
J1
J4
J6
J8
J9
J7
J12 5 8
4 6
2
1
6 1 7
J3 J2 J5
7 12 8 14
J10
10 1
**
GUN
J11 J11
TRIGGER
1 324 1
2 325 2
3 3
4
4
L1 L1 L1 L1
H3 H3 H3 H3 H3 H4 H4 H4 H4 H4 H2 H2 H2 H2 H2 L1 L1 L1 L1 L1 L2 L2 L2 L2 L2
TO SINGLE PHASE
SUPPLY LINE
230V 230V 230V 230V 230V 208V 208V 208V 208V 208V
H1 H1 H1 H1
W W W W W
B B B B B
RECONNECT RECONNECT RECONNECT RECONNECT RECONNECT
PANEL PANEL PANEL PANEL PANEL
LINE LINE LINE LINE
G
SWITCH SWITCH SWITCH SWITCH
S1 S1 S1 S1
TO GROUND PER
NATIONAL ELECTRICAL
CODE
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 (208/230 V)
NOTES:
GENERAL INFORMATION
N.A. WELDING CABLE MUST BE OF PRO PER CAPACITY FOR THE
ELECTRICAL SYMBOLS PER E1537
CURRENT AND DUTY CYCLE OF IMMEDIATE AND
FUTURE APPLICATIONS.
COLOR CODE:
N.B. THIS DIAGRAM SHOWS THE "ELECTRODE" POLARITY
B - BLACK
"POSITIVE". TO CHANGE POLARITY, TURN THE UNIT
W - WHITE
OFF AND REVERSE LEAD CONNECTIONS AT CABLE
R - RED
1 5 CONDUCTOR STRAP AND WORK STUD.
U - BLUE
INDICATES CONNECTOR CAVITY NO.
6
10
**
CAVITY
1 8
NUMBERING SEQUENCE
(NON-LEAD SIDE OF CONNEC TOR)
9 16
1 2
J11
3 4
325
324
209R 209R 209R 209R 208R 208R 208R 208R
354 354 354
D2
SECONDARY VOLTAGES SHOWN
BAFFLE
ARE NO LOAD RMS VALUES
MOUNTED
RECTIFIER
X8
X8 DIODE
BRIDGE
116.6V
X9
X9
X5
X5
14.2V
X6
X6
14.2V
208S 208S 208S 208S 208S 208S
X7
X7
H1 X1 G1 G1 G1 G1 G1 G1
L2 L2 L2 L2
SCR 1 SCR 1 SCR 1 SCR 1 SCR 1
28.4V
204S 204S 204S 204S 204S 204S
SCR HEATSINK SCR HEATSINK SCR HEATSINK SCR HEATSINK SCR HEATSINK SCR HEATSINK
X2 ASBLY ASBLY ASBLY ASBLY ASBLY ASBLY
H2
X3
SCR 2 SCR 2 SCR 2 SCR 2 SCR 2 SCR 2
H4 H4 H4 H4
28.4V
X4
G2 G2 G2 G2 G2 G2
H1 H1 H1 H1
209S 209S 209S 209S 209S 209S
H3
POWER POWER POWER
TRANSFORMER TRANSFORMER TRANSFORMER
D1
206S 205
C1 C2 C3
C1 THRU C3
+ + +
31,000 MFD
50V
POWER FACTOR
ENHANCEMENT
CHOKE
ELECTRICAL DIAGRAMS
J10
DISPLAY DISPLAY DISPLAY DISPLAY DISPLAY
BOARD BOARD BOARD BOARD BOARD
1 1 1 1 1
254A 254A 254A 254A 254A 254A 254A 254A 254A
R4 R4 R4 R4 R4 R4 R4 R4
256 256 256 256 256 256 256 256 256 256 253 253 253 253 253 253 253 253 253 254 254 254 254 254 254 254 254 254 251 252 252 252 252 252 252 252 252 252
ARC ARC ARC ARC ARC ARC ARC ARC
VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE
J12
1
2
R 3
U
4
B
5
6
B 7
W 8
W B
R T WIRE
DRIVE
U A
MOTOR/
C
B GEARBOX
H
206
207 207
206B
15 OHMS
100 W
204B
OUTPUT
CHOKE
CONTROL BOARD CONTROL BOARD
352 352
253
252
251
FAN
MOTOR 552
551
256
353 353
550
254
500
R3 R3 R3 R3 R3 R3 R3 R3
515
J7
390 392
265 1
WIRE FEED WIRE FEED WIRE FEED WIRE FEED WIRE FEED WIRE FEED WIRE FEED WIRE FEED
263 2
SPEED SPEED SPEED SPEED SPEED SPEED SPEED SPEED
262 3
267
4
GAS 264
5
SOLENOID
260 6
7
261 8
9
10
FOR TIMER
OPTION
206B
B
W
515B
SNUBBER 555
BOARD
1 204 325
2 208S
324
515B 3 208
555 208R
4
J9
390
206B 204S
5
392
6 209S
B 7 209
W 8 209R
SCI
325A
543
326
541A
SCI
320
515
320B 325B
206A
OUTPUT CHOKE
SCR HEATSINK
THERMOSTAT
ASSEMBLY
THERMOSTAT
209
TO TO TO 208
WORK WORK WORK
206
206S
205
352
X9
354
325B
GND
320
207
353
X8
G2
204
G1
X7
X6
X5
R.F. FILTER R.F. FILTER R.F. FILTER
GND
G-5
1
2
3
4
5
6
7
J2
8
9
10
11
12
13
14
1
2
3
4
5
J4
6
7
8
9
10
1
2
3
4
J1
5
6
7
8
1
J8
2
1
2
3
4
5
6
J3 J3
7
8
9
10
11
12
1
2
3
4
5
6
7
8
J5
9
10
11
12
13
14
15
16
1
2
3
J6
4
5
6
A
L11979
POWER MIG 255