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ELECTRICAL DIAGRAMS
G-3
POWER MIG 350MP
SCHEMATIC - ENTIRE MACHINE
EN-170
S
O
L
I
D
E
D
G
E
G4677
ENGINEERING CONTROLLED
MANUFACTURER:
No
CHANGE DETAIL: RELEASEDA.02 FROM X.
A
THE INFORMATION ON THIS
PRINT IS FOR REFERENCE
ONLY. COMPONENTS AND
CIRCUITRY MAY BE
DIFFERENT
FROM AN ACTUAL MACHINE.
G4677
POWER MIG 350MP
MACHINE SCHEMATIC
NONE
G4512
J. SKERBEC
JZUCKER
-
DRAWN BY:
DESIGN INFORMATION
ENGINEER:
APPROVED:
REFERENCE:
EQUIPMENT TYPE:
SUBJECT:
SCALE:
MATERIAL
DISPOSITION:
APPROVAL
DATE:
PROJECT
NUMBER:
NA
CRM36729
1
PAGE ___ OF ___
1
DOCUMENT
NUMBER:
DOCUMENT
REVISION:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED
TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.
PROPRIETARY & CONFIDENTIAL:
12/10/2004
LEAD COLOR CODE:
B-BLACK
G-GREEN
O-ORANGE
R-RED
U-BLUE
W-WHITE
Y-YELLOW
COMPONENT VALUE UNITS:
CAPACITOR: MFD/VOLTS
RESISTOR: OHMS/WATTS
CONNECTOR PIN NUMBERS:
VIEW OF CONNECTOR ON PC BOARD
1
6
712
LATCH
EX. 12 PIN CONNECTOR
LABELS:
COMMON
FRAME GROUND
EARTH GROUND
J1,J86
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BOARD)
J81,J82
6
5
10
1
3
4
1
2
J85,J87
9
8
16
1
4
6
1
3
J2,J84
5
4
8
1
J83,J88
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
COLOR CODE
B -BLACK
W - WHITE
R -RED
U -BLUE
6J83
2J41
1J41
1J42
2J42
3J42
5J42
472 412
471 411
408
410
+15VDC CONTROL BD SUPPLY
-15VDC CONTROL BD SUPPLY
+5VDC CONTROL BD SUPPLY
CONTROL BD SUPPLY COMMON
DIGITAL POWER
SUPPLY P.C. BOARD
(SCHEMATIC G3631)
ILLUMINATED LED
INDICATES VOLTAGES ARE
BEING SUPPLIED TO J43
LED2
RED
LED1
RED
4J99
1J99
431
437
PWM = 20KHZ 12V
CHOPPER P.C. BOARD
(SCHEMATIC M19792-1)
LOCATED AT
MACHINE'S BASE
(WIRE DRIVE SIDE)
B8
B7
607
615
121K
G
EC
3J2
4J2
2
J8
4J8
1J8
6J8
253
802
254
804
801
806
+1
5
VD
C
L
E
M
S
UP
P
L
Y
L
EM
CO
M
M
O
N
- V
A
R
IA
B
LE
V
O
L
TA
G
E
F
EE
B
A
CK
CO
M
M
O
N
CONTROL
P.C. BOARD
(SCHEMATIC G3789)
LOCATED IN P.C. BOARD
COMPARTMENT
(LEFT FRONT SIDE)
VOLTAGE BETWEEN
801 AND 806 VARIES
DEPENDING ON
CURRENT THROUGH
LEM 500A = -4V
LED2
GREEN
LED1
LED7
RED
GREEN
LED3
GREEN
LED4
GREEN
LED6
GREEN
LED5
GREEN
LED8
G
R
E
E
N
REDLED'sARE SOLID AT
POWER UPTHEN BLANK
GREEN LED's REMAIN
SOLIDGREEN
4J6
10J6
604
15J7
16J7
715
716
1J11
2J11
1J2
251
3
J9
1J9
903
901
- STUD
+STUD
V
OL
T
A
GE
F
E
E
DB
A
C
K
15J6
7J6
615
607
P
W
M
CO
M
M
O
N
+P
W
M
S
I
GN
A
L
2J5
3J5
502
503
LE
D
1
0
R
E
D
L
E
D
9
G
R
E
E
N
REDLED'sARE SOLID AT
POWER UPTHEN BLANK
SWITCHES MUST BE
IN OFF POSITION
DIP SWITCHES
JUMPER ARE SO THE
CONTROL BOARD
RECOGNIZES
THAT IT IS IN A
PM300
THIS LED WILL BE
BLINKING IF THERE IS
AN ERROR
CAN COMMUNICATION
CAN COMMUNICATION
+ 15VDC
COM
+ 10VDC
COM
+ 10VDC
23 7
LOCATED ON TOP
OF P.C. BOARD
COMPARTMENT
FOR WELD FILE
DOWNLOADS
R232
CONNECTOR
1
2
3
4
503A
2J83
3J83
832:W
833
FEEDHEAD
P.C. BOARD
(SCHEMATIC G3883)
5J85
12J85
855
8512
8J85
11J85
4J83
834
SWITCHES MUST BE
IN OFF POSITION
DIP SWITCHES
MOTOR -
GAS SOLENOID +
GAS SOLENOID -
2J82
1J82
LOCATED IN LEFT SIDE OF
P.C. BOARD COMPARTMENT
10J85
9J85
7J85
858
8511
8510
859
857
312321
WFS/AMPS
VOLTS/TRIM
PANEL ENCODERS
8
55A
1J83
831:B
MOTOR +
1J85
2J85
851
852
7J84
4J84
847:U
844:B
1J84
841
5VDC TACH SUPPLY
TACH SIGNAL
TACH COM
GUN TRIGGER SUPPLY
GUN TRIGGER INPUT
+15VDC
COMMON
LOCATED TO THE RIGHT OF WIRE
DRIVE ASSEMBLY ONCENTER PANEL
LOCATED ABOVEWIRE
DRIVE ASSEMBLY ON
CENTER PANEL
LOCATED INSIDE THE
P.C. BOARD
COMPARTMENT
PLUGGED ONTO THE
FEED HEAD BOARD.
ACCESS THIS CONNECTOR
BY REMOVINGTHEWIRE
DRIVE ASSEMBLY
6 PIN FOOT AMPTROL
LOCATED IN P.C. BOARD
COMPARTMENT
SPOOL GUN/
PUSH-PULL
SWITCH
-
+
USED ONLY FOR
EXTERNAL DIODE
(USED FOR MOTOR
BRAKING)
RECTIFIER BRIDGE
5J83
836
835
15VDC WHEN IN THE SPOOL GUN
POSITION 0VDC WHEN IN THE
PUSH-PULL POSITION
1
2
3
4
R
U
B
R
U
B
LOCATED ON
CASEFRONT
TACH
2.6 VDC @ 50 IN/MIN
27.4 VDC @ 700 IN/MIN
8 SECOND AVERAGE CURRENT
LIMIT = 3.5A
(LIMIT IS SOFTWARE SET)
MEASURE B TO U (120 Hz @ 50 IN/MIN, 1.6 kHz@700 IN/MIN)
LOCATED ON
CASE BACK
PWM CONTROLLED
6.5 VDC WHEN GAS
FLOWING COIL
MEASURES 21 OHMS
12 VDC COIL
1
2
BW
SPI DISPLAY
L11757-1
YELLOW
REDRED
RED
RED
1 +15V
2 +5V
3/SS
4 CS1
5CS2
6CS3
7MISO
8 SCK
9MOSI
10GRD
FOR ALL FLEX AND
SHIELDED CABLE
SHIELDED
CABLE
4J11
3J11
CAN COMMUNICATION SUPPLY +5V
0V
1J43
431
7J43
437
3J43
403
6J43
402
12J43
401
4J43
406
9J43
405
5J43
1104
+5V
10J43
1103
COMMON
+5V
COMMON
+15V
COMMON
+5V
+20VDC
COMMON
12J4
11J4
412
411
8J4
408
+ 15VDC
-15VDC
+ 5VDC
1J3
2J3
10J3
+ 15VDC
+5VDC
+0VDC
3J4
2J4
403
402
1J4
401
+ 5VDC
SPI SUPPLY +15VDC
COM
6J4
5J4
406
405
10J4
410
RS232 SUPPLY + 5VDC
COM
COM
1104
1103
1101
1102
3J82
4J82
3233
3234
COMMON
TO POWER FEEDHEAD BOARD +42VDC
4
2
75
77
76
REMOTE
TRIGGER
REMOTE
TRIGGER
REMOTE
LOCATED AT BOTTOM OF
P.C. BOARD COMPARTMENT
SPOOL GUN
P.C. BOARD
(SCHEMATIC L12008-2)
D
F
E
A
C
B
2A
4A
77A
76A
75A
ALL LED's
LIGHT
BRIEFLY
A DASH "-" SCROLLS
ALONG DISPLAY BOARD
(TAKES ABOUT 10 SECONDS)
MACHINE DISPLAYS
SETTINGS OF LAST
WELD MODE OPERATION
AMP LED ILLUMINATES
WITH CORRESPONDING VALUE.
RIGHT DISPLAY "OFF"
WFS AND VOLTAGE
LED's ILLUMINATE WITH
CORRESPONDING VALUES.
WFS AND TRIM
LED's ILLUMINATE WITH
CORRESPONDING VALUES.
IF LAST MODE WAS CC IF LAST MODE WAS CV IF LAST MODE WAS SYNERGIC
3214
3218
F
ECDG
A
B
MOTOR +
MOTOR -
5K
S
POOL GUN/PUSH-PULL MOTOR
0VDC @ 50 IN/MIN
24VDC@700 IN/MIN
7 PIN AMPTROL
SPOOL/PUSH-PULL GUN
CURRENT
TRANSDUCER
OUTPUT
CHOKE
5
0
w
a
t
t
s
5
0
0
o
h
m
s
2520
2530
R1
+
2400/100
+
-
57 VAC
-
+
DIODE RECTIFIER
80 VDC
INPUT
RECTIFIER
MAIN
TRANSFORMER
+
6800/75
X6X5
X4X3
PWM: PULSE WIDTH
MODULATION
CHOPPER
SUPPLY
30 VAC115 VAC
LOCATED ON TOP OF
MAIN TRANSFORMER
SCHEMATIC: L11108
MSP3 BOARD
(SCHEMATIC: L11612)
LOCATED ON
SECONDARY
WINDINGS
LOCATED ON
CHOPPER BOARD
HEATSINK
FAN STAYS ON FOR 5 MIN AFTER
LAST GUN TRIGGER (WHEN 2/4
ISCLOSED)
CR1
FAN
FAN RELAY
11J6
12J6
611
45 206
TOROID
TOROID
TOROID
TOROID
LOCATED ON
DIVIDER
PANEL IN THE
WIRE DRIVE
COMPARTMENT
TOROID
LOCATED ON
TRANSFORMER
BAFFLE
LOCATED ON
TRANSFORMER
BAFFLE
TOROID
+ 42VDC
LOCATED ON FRONT
OF MACHINE'S BASE
LOCATED ON
MACHINE'S BASE
(STORAGE
COMPARTMENT SIDE)
H1
H4
H1
(SHOWN
CONNECTED
FOR 230V)
H4
H3
H2H5
L2
L1
G
B
W
H1
L1
L2
H4
H1
H4
H3
H5
H2
H1
LINE
SWITCH
RECONNECT PANEL
LOCATED ON
DIVIDER
PANEL IN THE
WIRE DRIVE
COMPARTMENT
LOCATED NEXT TO
MAIN TRANSFORMER
(ON WIRE DRIVE SIDE)
LOCATED ON
CHOPPER BOARD
ASSEMBLY
CONTROL P.C. BOARD LED LEGEND
LED1: +15VPOWER TO CONTROL P.C. BOARD
LED2: -
15V POWER TO CONTROL P.C. BOARD
LED3: +5V FOR SPI CABLE
LED4: +15V FOR SPI CABLE
LED5: +
5V POWER TO CONTROL P.C. BOARD
LED6: +5V FOR RS232 CONNECTOR
LED7: A FATAL ERROR HAS OCCURED
LED8: +5V FOR CANCOMMUNICATION
LED9 AND LED10: ERROR CODE. LED9 BLINKSONCE
THEN LED10 BLINKSERRORCODE.
15 V
N.C.
N.C.
ALL 3 LED'S ILLUMINATE
AT THERMAL TRIP.
SELECT
SWITCH
SET
SWITCH
ILLUMINATED LED
INDICATES VOLTAGES ARE
BEING SUPPLIED TO J42
ILLUMINATES WHEN
DISPLAYING WFS
ILLUMINATES WHEN
DISPLAYING AMPS
ILLUMINATES WHEN
DISPLAYING VOLTS
ILLUMINATES WHEN
DISPLAYING TRIM
PROVIDES BRAKING OFTHE
SPOOL/PUSH-PULL GUN
MOTOR ANDCONDITIONS
THE SIGNAL FROM THE
POTENTIOMETER.
CONTROLS THE WIRE
DRIVE FUNCTIONS AND
THE GAS SOLENOID.
CONTROLS THE
FUNCTIONALITY OF
THE MACHINE.
ALLOWS THE SELECTION OF DIFFERENT WELD
MODES ANDPROCESSES.
1
J34
2J34
10J34
S
PI FLEX/SHIELDED
CABLE SUPPLY
RS232 SUPPLY
CAN COMMUNICATION
SUPPLY
2
J86
7J86
1J86
3J86
6J86
4J86
8J86
6J86
9J86
10J86
2P86
7P86
1P86
3P86
6P86
4P86
8P86
6P86
9P86
10P86
14J85
8514
3J810
2J810
1J810
5J810
6J810
4J810
8J810
77
3218
3214
8514
76
846A
75
6J84
846
4J85
3J85
2B
853
DUAL PROCEDURE SUPPLY
DUAL PROCEDURE INPUT
1
2
3
4
851A
4
2
2J811
1J811
8115
8111
5J88
8115
FLEX
TO SPOOL/PUSH-PULL
GUN MOTOR DRIVE
+40V DC SUPPLY FOR
SPOOL/PUSH-PULL GUN MOTOR
0-5V SIGNAL VARIES WITH
REMOTE POT WIPER
SPOOL/PUSH-PULL GUN
BRAKE SIGNAL
(0 VOLT= MOTOR BRAKE)
CIRCUIT
BREAKER
15A
1205
115V
LOCATED ON
CASE BACK
1203
1204
MOTOR / GEARBOX
STANDARD MAGNUM
SPOOL GUN
2J812
3J812
8123
4J812
8124
GAS SOLENOID+
GAS SOLENOID -
1J812
LOCATED ON
CASE BACK
PWM CONTROLLED
6.5 VDC WHEN GAS
FLOWING COIL
MEASURES 21 OHMS
12 VDC COIL
SPOOL GUN/TIG
SOLENOID
G-3
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.