Lincoln Electric 7FH Welder User Manual


 
37
6
4
1
5
1
4
J13
J4
12
J1
10
L
6
8
PIN 1
R.F. CHOKE
P10
P11
5
1
CLEVELAND, OHIO U.S.A.
L9778
A
1
7
WIRING DIAGRAM SYNERGIC 7F
J2
P.C. BOARD
J10
3
J11
1
21
1
J6
J5
J3
J7
DPTT
CONTROL P.C. BOARD
INPUT CABLE
RECEPTACLE
A
2
B
4
C
D
R.F. TOROID ASSEMBLY
ELECTRODE INPUT CABLE
*
*
*
J17
*
J3
*
*
J14
3
4
3
4
3
4
5
6
7
8
ENCODER PC BOARD
*
J10
2
A
1
F
C
D
500
B
C
A
500
J7
*
J6
*
J5
NUMBERING SEQUENCE
CONNECTOR CAVITY
(NON LEAD SIDE OF CONNECTOR)
C
AVIT
Y
N
U
MBE
RING SEQUENCE
518
517
516
525
524
515
539
541
515
518
KEYPAD
E
B
D
DISPLAY
E
F
500
G
6
521
520
519
PROCEDURE SWITCH
R
U
***
B
552
512A
554
551
553
GAS
SOLENOID
B - BLACK
LEAD COLOR CODING
W - WHITE
U - BLUE
LOCAL DUAL
12
W
539
1
2
1
2
345678
553
512A
552
551
554
E
G
R - RED
*
*
1
2
8765432
1
34 2
1
8765432
1
3459
10
519
520
J2
521
*
525
524
*
4
3
*
2
(COMPONENT SIDE OF P.C. BOARD)
82
81
67
H
G
81
F
R
82
R
(42)
(41)
R
500M
542
AC
-
+
AC
CABLE
516
517
518
515
1
2
3
4
5
6
7
8
1
2
VOLTS
WFS
ENCODER PC BOARD
J17
J17
ELECTRICAL SYMBOLS PER E1537.
PIN NUMBERING SEQUENCE
**
(COMPONENT SIDE OF P.C. BOARD)
8
1
N.A. JUMPER PRESENT ONLY ON
SYNERGIC 7FH MODELS.
1
2345678
89
10
J11
CDAB GF
11
12
500
ASSEMBLY
2
1
234567
W
500M
GUN
TRIGGER
541
CONNECTION
SWITCH
P.M.
DUAL PROCEDURE
OPTIONAL GUN
R
R
U
U
B
B
TACH
B
67
GAS
L
F
G
H
K
L
I
A
N
C
D
E
M
I
J
J14
531
530
H
E
D
C
B
A
C
B
A
J
M
E
N
B
A
B
A
K
GUN
539
541
C
D
J9
J12
J15
J8
J16
PROC.A
PROC.B
F
G
W
520
J4
*
522
UNIT
512
WIRE FEED
519
1
520
2
CABLE
SHIELDED
CABLE
SHIELDED
519
522
512
67
3
1
2
B
R
67
U
512
3
4
N.A.
530
531
J13
P13
519
522
520
W
2
J1
W
4
W
B
531
530
B
R
U
CHOKES
542
R.F.
W
CONTROL
R
R.F. TOROID ASSEMBLY
BRIDGE
6
*
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside
the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number..