Wiring diagram, Ln-25 – Lincoln Electric IM677 RED-D-ARC LN-25 User Manual
Page 29
WIRING DIAGRAM
LN-25
F-1
F-1
1
2
J6
J7
*
*
530
500
1
2
3
4
5
6
530A
512
606
607
530
500
HI
LO
523
522
667
500
530
621
607
606
512
530A
VM
ARC
VOLTMETER
+
667
621
632
633
631
10K
R1
WIRE SPEED
CONTROL RHEOSTAT
N.B.
CONTACTOR
P C BOARD
OPTIONAL
TIMER
PLUG
S2
S3
S1
TO WORK CLIP
BLACK
POS
667
621
67
N.B.
NEG
A
B
C
D
E
622A
500A
J5
TRIGGER
CONNECTOR
7
*
J3
3
2
1
4
1
4
5
2
621
621
500A
667
622A
608
*
*
J2
J1
N.D.
3
6
1
4
10
8
11
2
9
509
632
523
522
633
523
524
631
BLACK
BLUE
RED
524
523
509
VV
CV
N.B.
WHITE
539
BLACK
541
BLACK
RED
BLUE
HALL
EFFECT
SWITCH
GUN CABLE
N.F.
N.G.
N.D.,N.E.
N.A.
N.F.
N.B.
WIRE FEED
MODE SWITCH
POLARITY
SWITCH
WIRE SPEED DIAL
RANGE SWITCH
624
11
1
9
3
2
8
6
5
7
4
13
14
12
10
J9
*
667
621
*
4
12
3
1
2
BLACK
WHITE
J13
15
9
16
13
12
10
14
8
11
1
6
5
3
2
4
13
539
14
541
7
12
5
BLACK
WHITE
OPTIONAL REMOTE
KIT PLUG
CONTROL
P.C. BOARD
LEGEND
S1 POLARITY SWITCH
S2 WIRE SPEED DIAL RANGE SWITCH
S3 WIRE FEED MODE SWITCH
S4 COLD INCH SWITCH
622A
621
500A
530A
530
624
606
622
607
512
4
3
2
1
500
*
J8
*
J13
1
2
3
4
5
6
7
8
9
10
11
12
75
76
77
R3
ARC VOLTS
TO CONTROL BOARD
TO TIMER P.C. BOARD
34
33
4
21
2-20-98A
L10925
WIRING DIAGRAM - LN-25 FOR CODE 10731
702
622A
621
500A
530A
530
624
606
622
607
512
4
3
700
2
701
1
500
*
J8
*
J13
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
75
76
77
75
76
77
R3
ARC VOLTS
TO CONTROL BOARD
REMOTE
P.C. BOARD
TO
POLARITY
SWITCH
4
33
34
21
75
76
77
667
621
A
B
C
D
E
F
G
H
I
667
621
REMOTE
P.C. BOARD
N.E.
N.F.
CONTACTOR CAN BE INSTALLED IN UNITS WITH A G1757-3 (OR HIGHER
PART NO.) CONTROL PC BOARD.
WHEN A CONTACTOR IS NOT USED, THE '67' LEAD TO THE POLARITY
SWITCH COMES FROM THE CONDUCTOR BLOCK AND THE INPUT CABLE
CONNECTS DIRECTLY TO THE CONDUCTOR BLOCK.
N.H.
TOGGLE SWITCH USED ON EARLIER UNITS.
N.G.
JUMPER PLUG MUST BE INSTALLED UNLESS OPTIONAL TIMER IS USED.
N.A.
N.B.
WHEN A CONTACTOR IS NOT USED THE JUMPER PLUG MUST BE
INSTALLED UNLESS OPTIONAL REMOTE KIT IS BEING USED.
CONNECTIONS AS VIEWED FROM BACK OF RHEOSTAT AND SWITCHES.
N.D.
ITEM FACTORY INSTALLED ON SOME MODELS AND OPTIONAL EQUIPMENT
ON SOME MODELS.
NOTES
UB
R
OPTIONAL PULSE POWER ADAPTOR KIT
OPTIONAL REMOTE OUTPUT CONTROL
TO TIMER P.C. BOARD
500
555
512
*
J4
*
606
500
512
607
530A
530
J10
TIMER P.C.
BOARD
TO REMOTE
OR CONTACTOR
P.C. BOARD
1
2
3
4
5
6
GAS
SOLENOID
VALVE
N.D.
PURGE
608
67
CONTACTOR
CONTACTOR
COIL
N.F.
N.D.,N.E.
INPUT
CABLE
N.F.
CONNECTOR CAVITY NUMBER
*
500A
607
622A
512
530A
667
624
500A
530
606
621
622A
7
500
15
9
16
13
12
10
14
8
11
1
6
5
3
2
4
*
J6
1
2
3
4
5
6
N.G.
530
530A
607
512
500
606
*
J6
1
2
3
4
5
6
N.G.
530
530A
607
512
500
606
700 701
702
500
607
622
512
530A
624
500A
530
606
621
622A
622A
621
500A
530A
530
624
606
622
607
512
8
7
6
5
500
*
J8
*
J12
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
41
42
2
75
76
77
R3
ARC VOLTS
TO CONTROL BOARD
REMOTE
P.C. BOARD
TO TIMER P.C. BOARD
*
J6
1
2
3
4
5
6
N.G.
530
530A
607
512
500
606
4
3
2
1
2
41
42
4
G
H
4
75
76
77
OPTIONAL 42 VOLT REMOTE OUTPUT CONTROL
75
76
77
OPTIONAL REMOTE VOLTAGE CONTROL
75
76
77
R3
ARC VOLTS
A
B
C
D
E
F
OPTIONAL TIMER KIT
SOLENOID P.C.
BOARD PLUG
OPTIONAL
CONTACTOR
P.C. BOARD PLUG
PUSHBUTTON
S5
N.L.
N.L.
N.L.
N.J. PROVIDES AN ESD PATHWAY FROM EXPOSED METAL SURFACES TO THE WORK.
N.K. PRESENT ON EUROPEAN MODELS ONLY.
N.L. CONNECTS TO THE BUSHING OF THE COMPONENT.
ESD SNUBBER
N.J.,N.K
S5 PURGE PUSHBUTTON
S5
S2
S1
S1
691
690
530
500
S4
COLD INCH
PUSHBUTTON
SWITCH
N.B., N.D.,
N.H.
3
6
690
691
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diag
ram 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.