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ELECTRICAL DIAGRAMS
POWER MIG 255
WIRING DIAGRAM - ENTIRE MACHINE - CODE 10563 - (L10979)
392
325
515B
209S
**
204S
209R
209
209S
W
254
256
551
254A
552
COLOR CODE:
ELECTRICAL SYMBOLS PER E1537
GENERAL INFORMATION
POWER MIG 255 (208/230V)
206B
G2
4
5
J7
4
5
6
2
7
8
J11
GUN
TRIGGER
2
325
4
3
4
J12
325
324
H4
H1
9
6
8
7
7
5
4
L1
7
2
1
5
6
265
263
260
261
U - BLUE
R - RED
W - WHITE
B - BLACK
INDICATES CONNECTOR CAVITY NO.
10
3
3
1
2
1
2
253
252
262
267
264
J3
J8
1
J5
J6
1
TO GROUND PER
NATIONAL ELECTRICAL
CODE
OUTPUT
CHOKE
POWER FACTOR
ENHANCEMENT
CHOKE
POWER
TRANSFORMER
2-23-2001A
L10979
B
555
D1
204B
205
352
X9
325B
320
207
FOR SPOOL GUN OPTION
204S
208R
**
208R
P.M.
SECONDARY VOLTAGES SHOWN
ARE NO LOAD RMS VALUES
252
2
3
4
TO
WORK
5
6
MOTOR/
GEARBOX
7
8
9
10
11
14
15
16
6
H3
209
208
206
354
1
2
3
J2
4
5
6
7
8
10
11
12
13
14
2
6
1
2
3
10
CAVITY
WIRE FEED
SPEED
352
1
2
1
B
+
L2
208V
H1
LINE
SWITCH
S1
RECONNECT
PANEL
G
H2
C3C1
X4
205206S
206B
R1
8
1
6
8
9
10
11
12
OUTPUT CHOKE
THERMOSTAT
SCR HEATSINK
ASSEMBLY
THERMOSTAT
116.6V
14.2V
14.2V
28.4V
515B
B
324
206B
L2L1
208
208S
1
2
SCI
325A
543
326
SCI
204
GND
500
C2
+++
C1 THRU C3
31,000 MFD
50V
X7
G1
X6
204
X5
G2
X8
353
207
206S
15 OHMS
100 W
5
4
3
2
1
12
13
2
3
4
5
CONTROL BOARD
CONDUCTOR STRAP AND WORK STUD.
OFF AND REVERSE LEAD CONNECTIONS AT CABLE
"POSITIVE". TO CHANGE POLARITY, TURN THE UNIT
FUTURE APPLICATIONS.
8
7
6
5
4
3
B
-
W
555
354
D2
BAFFLE
MOUNTED
RECTIFIER
DIODE
BRIDGE
R.F.
CHOKE
AS’BLY
B
+
-
325B
541A
320B
320
253256
550
**
DISPLAY
BOARD
5
1
4
1
3
1
4
12
7
8
6
1 1
7
1
1
J10
209R
324
**
J10
GAS
SOLENOID
9
251
353
515B
390
555
206B
B
392
NOTES:
N.A. WELDING CABLE MUST BE OF PROPER CAPACITY FOR THE
CURRENT AND DUTY CYCLE OF IMMEDIATE AND
N.B. THIS DIAGRAM SHOWS THE "ELECTRODE" POLARITY
1
J1
J4
J6
J8
J9
J7
(NON-LEAD SIDE OF CONNECTOR)
2
J11
J12
J13
10
3
4
J2
J5
9
14
8
16
1
1
2
3
3
4
X8
X9
X5
X5
X6
R.F. FILTER
X6
X7
X7
X1
2
1
ARC
VOLTAGE
FAN
MOTOR
R3
GND
500
515
550
551
552
J3
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BOARD)
2
10
6
8
5
6
NUMBERING SEQUENCE
X9
251254
R4
206
J1
J4
1
3
4
8
7
9
FOR TIMER
OPTION
515
390
206A
515
SCR 1
J13
SCR HEATSINK
ASBLY
SCR 2
X8
230V
TO SINGLE PHASE
SUPPLY LINE
H1
X2
X3
H2
28.4V
W
SNUBBER
BOARD
J9
W
H4H3
W
208S
G1
R
T
A
C
H
U
G-2
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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.