Wiring Diagram - Entire Machine - Code 10986 - (L11980 - Lincoln Electric POWER MIG 255 SVM144-B Service Manual

G-4

WIRING DIAGRAM - ENTIRE MACHINE - CODE 10986 - (L11980)

CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BO ARD)
1 1 3 1
J1
J6
J8
J9
J12 5
4 6
2
1
6 1
J3 J2
7 12
8
J10
10
GUN
TRIGGER
1 324
2 325
3
4
H2
H5 H4 H3 H1 L1 L2
5
2 4
3 1
RECONNECT
PANEL
(SHOWN CONNECTED
FOR 230V)
W
B
TO SINGLE PHASE
SUPPLY LINE
G
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 (230/460/575 V)
NOTES:
GENERAL INFORMATION
N.A. WELDING CABLE MUST BE OF PRO PER CAPACITY FOR THE
ELECTRICAL SYMBOLS PER E1537
COLOR CODE:
N.B. THIS DIAGRAM SHOWS THE "ELECTRODE" POLARITY
B - BLACK
W - WHITE
R - RED
4 1 5
U - BLUE
J4
INDICATES CONNECTOR CAVITY NO.
J7
8 6
10
**
CAVITY
7 1 8
NUMBERING SEQUENCE
J5
(NON-LEAD SIDE OF CONNEC TOR)
9 16
14
1 2
J11
1
3 4
**
J11 J11
1
2 325
3
324
4
209R 209R 209R 209R
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
L1 L2
28.4V
H2 204S 204S 204S 204S 204S 204S
H5
X2
H3
X3
H1 H1 H1 H1 H4 H4 H4 H4
28.4V
H4 X4
H1
209S 209S 209S 209S 209S 209S
LINE
POWER POWER POWER
SWITCH
TRANSFORMER TRANSFORMER TRANSFORMER
S1
D1
C1 C2 C3
C1 THRU C3
+ + +
31,000 MFD
50V
POWER FACTOR
ENHANCEMENT
CHOKE
ELECTRICAL DIAGRAMS
J10
CURRENT AND DUTY CYCLE OF IMMEDIATE AND
FUTURE APPLICATIONS.
1 1 1 1 1
"POSITIVE". TO CHANGE POLARITY, TURN THE UNIT
OFF AND REVERSE LEAD CONNECTIONS AT CABLE
CONDUCTOR STRAP AND WORK STUD.
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
ARC ARC ARC ARC ARC ARC ARC ARC
VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE
R
U
B
208R 208R 208R 208R
B
W
G1 G1 G1 G1 G1 G1
SCR 1 SCR 1 SCR 1 SCR 1 SCR 1
W B
SCR HEATSINK SCR HEATSINK SCR HEATSINK SCR HEATSINK SCR HEATSINK SCR HEATSINK
ASBLY ASBLY ASBLY ASBLY ASBLY ASBLY
SCR 2 SCR 2 SCR 2 SCR 2 SCR 2 SCR 2
R T WIRE
G2 G2 G2 G2 G2 G2 DRIVE
U A
MOTOR/
C
B GEARBOX
H
206
206S 205
206B
15 OHMS
100 W
204B
OUTPUT
CHOKE
DISPLAY DISPLAY DISPLAY DISPLAY DISPLAY
BOARD BOARD BOARD BOARD BOARD
352 352
FAN
MOTOR
353 353
254A 254A 254A 254A 254A 254A 254A 254A 254A
R3 R3 R3 R3 R3 R3 R3 R3
251 252 252 252 252 252 252 252 252 252
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
J12
SNUBBER
BOARD
1 1 204
2 2 208S
3 515B 3 208
555 208R
4 4
J9
206B 204S
5 5
6 6 209S
7 B 7 209
8 W 8 209R
320
320B 325B
OUTPUT CHOKE
SCR HEATSINK
ASSEMBLY THERMOSTAT
THERMOSTAT
TO TO TO
WORK WORK WORK
207 207
R.F. FILTER R.F. FILTER R.F. FILTER
GND
G-4
CONTROL BOARD CONTROL BOARD
253 1
252 2
251
3
552 4
551 5
256
6
7
J2
550 8
254 9
500 10
11
12
13
515
14
1
2
3
4
5
J4
6
7
8
9
10
206B
1
B 2
3
W
4
J1
515B
5
555 6
325 7
324 8
390 1
J8
392 2
SCI 1
325A 2
543
3
326
4
5
541A 6
J3 J3
SCI 7
8
515 9
206A 10
11
12
209 1
208 2
206
3
206S 4
205 5
6
352
7
X9 8
J5
354 9
325B 10
GND 11
320 12
207
13
14
353
15
X8 16
G2 1
204 2
G1 3
J6
X7 4
X6 5
X5
6
A
L11980
POWER MIG 255