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ELECTRICAL DIAGRAMS
G-2
MULTI-WELD 350
WIRING DIAGRAM - MULTI-WELD 350
9-17-99A
G3676
MULTI-WELD 350 WIRING DIAGRAM
REMOTE RECEPTACLE
ARC FORCE
FAN
(LEFT)
(RIGHT)
L1 L2
CHOPPER PCB
(LEFT)
CHOPPER PCB
(RIGHT)
C1
C2
REVERSE
DIODE
D5
D4
HEATSINK
CONNECTION
OFF
S1
R3
S2
ON/OFF & MODE SELECT
202
231
217
218
219
202A
222
223
217
221
AA
B
B
C
C
D
E
X1
X1A
HEATSINK
CONNECTION
+
-
INPUT CAPACITOR
INPUT CAPACITOR
(LEFT)
(RIGHT)
INPUT CONTACTOR
INPUT DIODES
PL1
PL2
FREE WHEELING
DIODES (RIGHT)
FREE WHEELING
DIODES (LEFT)
OUTPUT CHOKE (LEFT)
OUTPUT CHOKE (RIGHT)
PIPE
STICK/
GOUGE
RESISTORS = OHMS/WATT UNLESS OTHERWISE SPECIFIED
ALL SWITCH WIRING VIEWED FROM REAR OF SWITCH
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
50 mV/400A
SHUNT
CASE
GROUNDING
SCREW
(-) INPUT / WORK
X1
F
COVERED PANEL
(VIEWED FROM
REAR)
(+) INPUT
R 326
327
CC SLOPE
4 PIN
PCB CONNECTOR CAVITY NUMBERING SEQUENCE
Ý`Ð
(VIEWED FROM COMPONENT SIDE OF P.C. BOARD)
NOTE: SINCE COMPONENTS OR CIRCUITRY OF A PRINTED CIRCUIT BOARD
MAY CHANGE WITHOUT AFFECTING THE INTERCHANGEABILITY OF A
COMPLETE BOARD. THIS DIAGRAM MAY NOT SHOW THE EXACT COMPONENTS
OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE NUMBER.
OUTPUT CONTROL
R1
AMP
R 413
414
J45
J45A
X1A
X4
X4A
POWER SUPPLY PCB
DC BUSS POWER SUPPY PCB
PERIPHERAL PCB
WELD CONTROL PCB
J21
J31
J32
J30
J6
J4
J11
J2
J10
J3
J1
J8
J12
J13
J42
J41
J46
J47
R 315
316
R 313
314
306
307
300
309
312
311
310
327
R 326
331
302
304
301
308
330
308
316
R 315
314
R 313
304
312
303
311
302
310
301
309
231
202
204
201
208
230
230
201
204
208
410
411
409
412
408
438
439
440
441
416
R 415
414
R 413
408
209
212
210
211
209
212
210
211
R 215
R 213
214
216
200
206
207
R 213
R 215
216
214
200
206
207
R 226
227
R 226
227
412
411
410
409
401
402
403
404
401A
403
404
401
401A
442
442
436
437
437
436
402
CR1
CR1
+
303A
330
303
300
237
238
236
234A
236
237
238
M1
M2
M3
M4
M5
M6
M9
M10
M1
M2
M3
M4
M5
M6
M9
M10
J5
M1
M2
M3
M4
M5
M6
M9
M10
VOLT
M1
M2
M3
M4
M5
M6
M9
M10
234
234
234A
224
224
202B
202B
219
218
J7
223
222
HI
WIPER
LO
HI
WIPER
LO
221
D
D1
E
E1
A
D
B
E
C
D3
E3
MAX
VAR
MIN
HOT START
R2
MAX
VAR
MIN
MAX
VAR
MIN
J9
MAX
VAR
MIN
L6
L7
L9
L8
X4
X4A
331
L3
L4
L5
PANEL RECEPTACLE CAVITY NUMBERING SEQUENCE
Ý`Ð
(VIEWED FROM LEAD SIDE OF RECEPTACLE)
1
2
2 PIN
J6
1
2
3
4
J7, J8, J9
J41, J46
1
3
4
6
6 PIN
J10, J11, J45
15
6
10
1
4
5
8
8 PIN
J2, J3
J13, J47
10 PIN
J4, J5, J42
18
9
16
16 PIN
J12, J31
INPUT
INDICATOR
LIGHT
THERMAL
LIGHT
303A
TUNNEL ASSEMBLY
BY-PASS PCB
CONTROL BOX
BACK PANEL
R1: 10K, MULTI-TURN
R2, R3: 10K, ONE TURN
L3 THROUGH L10: RF CHOKES
ANALOG CONTROL
THERMOSTAT
306
307
L10
CC
CV
RED LEAD
TIN TERMINAL
441
440
B7
B3
B1
B2
7
91
3
8
4
52
6
B1
B2
B7
B3
7
9
1
3
8
4
52
6
R 415
416
439
438
P45
P45A
1
234
5
67
8
9
1
2
3
4
5
6
7
8
9
1
2
34
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
KEY PIN
KEY PIN
KEY PIN
J22
P22
P21
J23
P23
(VIEWED FROM PCB SIDE)
PANEL RECEPTACLES
PANEL PLUGS
J20
P20
P24
J24
PANEL PLUGS
PANEL RECEPTACLES
N.A.
HOT START
ARC FORCE
OUTPUT
CONTROL
4 PIN
J21
9 PIN
J20, J22, J23,
J24, J45, J45A
CONTROL BOX
FRONT PANEL
(VIEWED FROM REAR)
(VIEWED FROM PCB SIDE)
D1
E1
1
3
4
2
123
6
54
987
1
2
4
3
321
4
56
789
4 PIN
P21
9 PIN
P20,P22, P23,
P24,P45, P45A
N.B. R-XXX DENOTES A RED LEAD NUMBERED XXX
RECEPTACLE (SEE INSTRUCTION MANUAL)
OUTPUT SWITCHING FROM REMOTE
N.A. CUT THIS JUMPER TO ENABLE ON/OFF
NOTES:
REVERSE
DIODE
D6
D1
D2
BP1
BP5
BP3
BP2
BP4
G-2
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.
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