Lincoln Electric IM640-A manual Control Wiring Diagram SAE-400 & Weldn AIR

CONTROL WIRING DIAGRAM - SAE-400 & WELD'N AIR F-3

COLOR CODE

AC

REMOTE CONTROL RECEPTACLE

PLUG FOR REMOTE CONTROL

AND SWITCH

POTENTIOMETER

ALTERNATOR

W

203

G

G

B-BLACK OR GRAY

ROTOR

X

G

Y

X

G-GREEN

+

-

(-)

D2

(+)

RESISTORS

SLIP

B

Y

N-BROWN

RINGS

R

W

R-RED OR PINK

W

AC

R

U-BLUE

FLASHING DIODE

600

U

AND RESISTOR

W-WHITE

R

600A

41

W

Y-YELLOW

G

41A

1

R

2

W

238

42A

3

42

G

SEE BATTERY

B NEG

POS

W

4

602

W

B

-

+

5

CONNECT

WIRING DIAGRAM

SAE400 & SAE400 WELD’N AIR

R

6

TO BASE

WIRING DIAGRAMS

GROUND

B

1

3

2

4

P8

REMOTE CONTROL

SCREW

(+)

TO LOWER PANEL

POTENTIOMETER BOX

201

G

SWITCH FOR LOCAL OR

GROUND SCREW

Y

REMOTE CONTROL SHOWN

AC

AC

U

D1

POLARITY

IN LOCAL POSITION.

U

602A

SWITCH

500

1

G

(-)

2

R

W

4

3

R

G

G

602B

230V DUPLEX

WHITE

4

5

RECEPTACLE

TERMINALS

602

R

ALTERNATOR

U

REACTOR

BACK VIEW

OF POLARITY

W

AUXILIARY

N

B

SWITCH

POWER WDG.

REMOTE SWITCH WIRED THIS

WAY ON EARLIER UNITS

W

115V DUPLEX

E

F

RECEPTACLE

A 2

FRONT VIEW

1

OF RECEPTACLES

B

B 3

15A

15A

20A

20A

B

B

TOROID

ELECTRODE

W

SEE BATTERY

R

2CR

TO WORK TERMINAL

CB1

CB2

CB3

CB4

W

WIRING DIAGRAM

B

WELD CURRENT

B

B

SENSING SWITCH

ELECTRICAL SYMBOLS PER E1537

7- 01

M19237

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The	F-3
specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.