Electrical Diagrams; Wiring Diagrams - Lincoln Electric LN-25 Service Manual

WIRING DIAGRAM — CODES 10148 AND ABOVE
S2
WIRE SPEED DIAL
RANGE SWITCH
HI LO
523
N.B.
522
632
633
R1 631
10K
WIRE SPEED
CONTROL RHEOSTAT
N.B.
ARC
VOLTMETER
+
VM
OPTIONAL
667 621
TIMER
PLUG
N.B.
621
TO WORK CLIP
BLACK
S1
POS
POLARITY
SWITCH
67
N.F.
A
J5
B
TRIGGER
C
CONNECTOR
D
E
67
CONTACTOR
CONTACTOR
COIL
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.
WIRING DIAGRAM - LN-25
11
667 1
N.D.,N.E.
500 9
530 3
621 2 *
J9
607 8
606 6
CONTACTOR
512 5
P C BOARD
530A 7
624 4
13
14
12
10
530A 2
512 4
606 6
*
J6
607
3
530
1
500 5
*
J7
N.G.
621
667
500
S3
S4 530B 530
WIRE FEED
MODE SWITCH
COLD INCH
PUSHBUTTON VV CV
SWITCH
NEG
530B 530C
N.B.
667
N.B. ,N.D. ,N.H.
N.F.
622A
*
J13
500A
3 1 2 4
U B R
N.F. 1 2
HALL
EFFECT
SWITCH
INPUT
CABLE
GUN CABLE
N.F.
N.D.,N.E.
*
CONNECTOR CAVITY NUMBER

ELECTRICAL DIAGRAMS

621 3
OPTIONAL REMOTE
500A 2 KIT PLUG
*
J1 N.A.
667
1
622A 4
500 500A
7 7
500
2 15 15
621
* 9 607 9 607
606 1
J2
16 622 16 622A
512
3
13 512 13 512
624A 4
530A 530A
12 12
667
10 10
SOLENOID P.C. 14 624 14 624
*
BOARD PLUG J3 8 500A 8 500A
11 530 11 530
1 606 1 606
621 621
N.D. 6 6
5 622A 5 622A
3 3
2 2
CONTROL
4 4
P.C. BOARD
*
OPTIONAL
J4
CONTACTOR
P.C. BOARD PLUG
3 6 1 4 10 8 11 2 9
13 14 7 12 5
N.D.
GAS SOLENOID
*
1
P C BOARD J11
5
3 7 6 8 2 4
606 608
512
621
624A
621 608
NOTES
N.A. WHEN A CONTACTOR IS NOT USED THE JUMPER PLUG MUST BE
INSTALLED UNLESS OPTIONAL REMOTE KIT IS BEING USED.
N.B. CONNECTIONS AS VIEWED FROM BACK OF RHEOSTAT AND SWITCHES.
N.D. ITEM FACTORY INSTALLED ON SOME MODELS AND OPTIONAL EQUIPMENT
ON SOME MODELS.
N.E. CONTACTOR CAN BE INSTALLED IN UNITS WITH A G1757-3 (OR HIGHER
PART NO.) CONTROL PC BOARD.
N.F. 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.G.
JUMPER PLUG MUST BE INSTALLED UNLESS OPTIONAL TIMER IS USED.
N.H. TOGGLE SWITCH USED ON EARLIER UNITS.
LEGEND
S1 POLARITY SWITCH
S2 WIRE SPEED DIAL RANGE SWITCH
S3 WIRE FEED MODE SWITCH
S4 COLD INCH SWITCH
CLEVELAND, OHIO U.S.A.
TO REMOTE
TIMER P.C. OR CONTACTOR
BOARD P.C. BOARD
1 530
530A
2
*
3 607
J10
4 512
5 500
6 606
OPTIONAL TIMER KIT
ARC VOLTS
R3
75 A
75
77
76 B
76
77 C
D
E
F
OPTIONAL REMOTE VOLTAGE CONTROL
1 2
2 41
42
3
*
4 4
J12
REMOTE
5
P.C. BOARD 6
7
8
1 622A
*
2 621
J6
3 500A
4 530A
76
5 530
* 77 75
N.G. 6 624
1 2 3 4 5 6
J8
7 606
R3
8 622
ARC VOLTS
9 607
10 512
GAS
11
SOLENOID
12 500
VALVE
TO CONTROL BOARD
TO TIMER P.C. BOARD
OPTIONAL 42 VOLT REMOTE OUTPUT CONTROL
REMOTE
1 701
*
P.C. BOARD
2 700
J13
3
N.D.
4 702
PURGE
1 622A
76
*
2 621 77 75
J6
3 500A
R3
4 530A
5 530 ARC VOLTS
*
N.G. 6 624
1 2 3 4 5 6
J8
7 606
8 622
9 607
512
10
11
12 500
TO CONTROL BOARD
TO TIMER P.C. BOARD
OPTIONAL REMOTE OUTPUT CONTROL
REMOTE
1 34
*
P.C. BOARD 33
2
J13
3
21
4 4
1 622A
76
*
2 621 77
J6
3 500A
R3
4 530A
530 ARC VOLTS
5
*
N.G. 6 624
1 2 3 4 5 6
J8 TO
7 606
POLARITY
8 622
SWITCH
607
9
10 512
11
500
12
TO CONTROL BOARD
TO TIMER P.C. BOARD
OPTIONAL PULSE POWER ADAPTOR KIT
G-3
41 A
42 B
2 C
4 D
E
75 F
G
76
77 H
75 A
76 B
77 C
700 D
701 E
702 F
667 A
4 B
33 C
34 D
21 E
F
75
G
76
77 H
75
I
621
8-12-94C
L9644
LN-25