Lincoln Electric IM609 SQUARE WAVE TIG 275 - Manual (Page 39)

F-1 WIRING DIAGRAM F-1
SQUARE WAVE TIG 275
B 232
R 222
(U) (V)
L1
255 254
L1 L2
C1
RECEPTACLE
G1 G2
SCR4
246
2 STEP TIG
BRASS
115VAC
251
TERMINAL
243
248
H4
POS
D
FRONT GANG
ELECTRICAL SYMBOLS PER E1537.
276
A
F
J6
C
C
E
J7A
ARC STARTER AS'BLY
253
N.A. CONNECTION IS PIN TO PIN BETWEEN
248
A
B
B
R5
236B
208 VOLT CONNECTION
NEG
H4 (460V)
F
232B
232
211B
231B
R8
232A 211A
POLARITY SWITCH MICRO SWITCH
232C
THERMOSTAT
W 221 (+)
218
G1
G2
B 242
STABILIZER
TL1
277
Y
CONTROL PC BOARD
THERMAL LIGHT
243
4 STEP TIG
POLARITY
S2
LOW
NO
314
216
G4
217
(REAR VIEW, SHOWN
X4
X1
R
W
B
B
W
W
B
D
10K A-B
210
231
209
235
238
234
212
204
201
236
261
247
211A
232A
220A
H1
NC
CLOSED CLOSED OPEN
R1
277
J20
R4
276
J21
277A
H2
W 209
18VAC X7
R 210 W 201
X8
L2
460 VOLT CONNECTION (AS SHOWN) CONNECT A TO HIGH (H4)
TO GROUND PER
230 VOLT CONNECTION CONNECT A TO MID (H3)
7-24-98
C
L2
SV1
235A 234A
F S
BALANCE CONTROL
X5
L4
C5
T2
F E D C
X2 X1 T1
78VAC
S
W 204
A-C, D-E, B-F B-D, C-E, A-F, G-H
G
DC+
211
DC-
C6
277B
245
254
J2
J1
255
AT MINIMUM
D F
J7
J8
PC BOARD
T3
GAP SPARK
L3
REMOTE
CURRENT CONTROL
H1
SECONDARY THERMOSTAT
CHOKE
(V)
H3
250
MID
X10 X9 18VAC X3
212
S2A
275C
H
L10747
WIRING DIAGRAM - SQUARE WAVE TIG 275 (208/230/460/1/60)
A
S1
H3 (230V) H2 (208V) H1 211
B 231
C4
C3
L1
D1
R7
216
J4 AND J20 (i.e. PIN 1 TO PIN 1).
N.B. ROBOTIC INTERFACE CONNECTION. N.C. NOT PRESENT ON EARLIER PC BOARDS.
STICK
X2
NEG
X6 23VAC
AC
115VAC
SCR3
SWITCH
E
F
ELECTRICAL CODE
NATIONAL 316
HIGH
236
FAN
TM
238
TIG
OR
AMPTROL
J5
R3
270
313
J5
PULSER
237
OPTIONAL
MODE SWITCH
312
275B 275C
N.B.
TOROID
THERMOSTAT PRIMARY
A
253
252
236A
245
SV2
242
DOWNSLOPE CONTROL
POSTFLOW CONTROL
POS
B-D, A-E, C-F, G-H
IN AC POSITION)
S3
275
249 246 312
D2
(+)
SCR1
W 221
B
SCR2
315
275A
252
275 251
247
(-)
277C
220
J4
S
G3
J3
(U)
220A G4
R 222 (-)
220
217
G3
218
C2
R2
A
CONNECT A TO LOW (H2)
F
R6
BYPASS/
E
REMOTE
L5
TOROID
260
N.A.
N.C.