Lincoln Electric IDEALARC SP-255 Service Manual page 106

G-2
WiriNG DiaGram - (cODE 10164) (l9688)
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.
ElEcTrical DiaGramS
2 LINE X 16 CHAR.
ALPHA-NUMERI C
LCD DISPLAY
AUTO MANUAL
PROCESS SAVE
WIRE/
GAS
MEMORY
1 2 3 4 5
IPM
SPOT STITCH VOLTS TOGGLE
TIMERS SET SET 4 5
OFF DISPLAY DISPLAY
KEYPAD MATRIX
N.F.
J14
326 1 326
B R
325 2 325
327 3 327
324 4 324
PIEZO
ALARM
TO
WORK
N.A.
N.C.
327
N.J.
324
325
206
326
THUMB
SWITCH
327
R.F. FILTER
INC. DEC.
326
324
TRIGGER
325
H1
L1 L2
H2
H3
H4
H1
SHUNT
POWER TRANSFORMER
T1
+
H1
-
LINE
SWITCH
S1
205
C1 C2
206S
+ +
SP - 255 (DUAL VOLTAGE)
1
CONTROL BOARD
(J7)
1 2
(J8)
2 3
(J4)
3 4
4
1 2 3 4
5 (J9)
1 2 3 4 5 6 7 8
6
R
7
B
(J1)
8
1 2 3 4 5 6
9
10
11
12
13
1
14
1
202
1 555 2
15
204A 2
2 206B 3
16
203
3
3 515B 206 4
5 4
4
325 207 5
G1
3 5
5 GND 6
* 204
1 6
326
6 209 7
(J2)
G2
7 (J5) 7
324
7 8
9 8
8 9
6 9
9 (J6)
10
10
8
10 205 11
11
2
11 12
12
4
12 B 206S
13
13 W 325A
14
14 327 320 15
208 16
GND
J15
515B 1 515B
555 2 555
B 3 B
206B 4 206B
5
W 6 W
W
MOTOR/
T R 515B
GEARBOX
A
P.M.
555
U
C
H B 206B
207
B
320 328 325A
N.E.
N.G.
THERMOSTAT THERMOSTAT
N.B.
S3 S4
X5
202
H4
P2
W
X6
204A
H2
X7 208 L1
203
LOW V. HIGH V.
X1 G1
B JUMPER
SCR 1
250V
470A
204
L2
X2
SCR HEATSINK
ASBLY
GND. RECONNECT PANEL
X3 SCR 2
G
250V
470A
X4
G2
209
D1
300V T1
85A
FAN
206
MOTORS
15 OHMS
100 W
C1 THRU C4
C4
C3 R2
30,000 MFD
2.5K
+ + 50V 204
OUTPUT 10W
N.H.
CHOKE
207
392
390
R.F.
CHOKE
AS'BLY.
J21
1
2
392B 3
390A 4
(J3)
J20
GAS
SOLENOID
SPOOL GUN ADAPTER
HARNESS
515
1
325A 2
324A 3 TO
206A
4
SPOOL GUN
541A 5
OPTION
495 6
542 7
543
8
392 9 9
390 10
392B
11
J11
390A 12
13
JUMPER USED WITHOUT
B 1
14
SPOOL GUN OPTION
W 2
R.F. R.F.
CHOKE CHOKE
N.A. WELDING CABLE MUST BE OF PROPER CAPACITY FOR THE
CURRENT AND DUTY CYCLE OF IMMEDIATE AND
AS'BLY. AS'BLY.
FUTURE APPLICATIONS.
N.B. THIS DIAGRAM SHOWS THE "ELECTRODE" POLARITY
J12
326 1 "POSITIVE". TO CHANGE POLARITY, TURN THE UNIT
2 OFF AND REVERSE LEAD CONNECTIONS AT CABLE
325
B 1
CONDUCTOR STRAP AND WORK STUD.
327 3
W 2
N.C. CONNECTOR SHOWN GEARBOX SIDE VIEW.
324 4
J13
N.E. THERMOSTATS MOUNTED ON CHOKE COIL
S2 MOUNTED CLOSEST TO FAN; S3 MOUNTED CLOSEST TO
TO SINGLE PHASE
POWER TRANSFORMER.
SUPPLY LINE
N.F. KEYPAD MATRIX SHOWN FRONT VIEW.
L1
N.G. THERMOSTAT S4 MOUNTED ON FAN SENSOR BRACKET
L2 N.H. RESISTOR R2 MOUNTED ON FAN SENSOR BRACKET.
N.J. CONNECTOR SHOWN PIN SIDE VIEW.
GND
H3
TO GROUND PER
NATIONAL ELECTRICAL
CODE
CAVITY NUMBERING SEQUENCE
N.E.
(COMPONENT SIDE OF P.C. BOARD)
P2
T2
TOP
P1 P2
1
16 1 9
J1
J2
S2
THERMOSTAT
1 6 1 4
J3
J4
7 12
5 8
1 7 1 8
J5
J6
8 14 9
16
1 2 1 3
J7
J9
J8
3 4 4 6
G-2
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
COLOR CODE:
B - BLACK
W - WHIT E
R - RE D
U - BLUE
*
INDICATES CONNECTOR CAVITY NO.
NOTES
.
CAVITY
NUMBERING SEQUENCE
(NON-LEAD SIDE OF CONNECTOR)
2 1 2 1 3
J13
J11
J14 J15
J12
J21
1 3 4 4 6
1 7
J20
8 14
3-24-95
L9688
iDEalarc ® SP-255