Lincoln Electric IM565 SQUARE WAVE TIG 175 - Manual (Page 26)

19 WIRING DIAGRAM 19
SQUARE WAVE TIG 175
L10060
(-) (+)
SCR4 SCR2 SCR1
D
C
B
A
F E D C B A
L1
(-)
T4
NC
NO
T3
S F
L3 L4
C3
SCR3
115VAC
Y W
H1
X1
H
G
OPEN CLOSED CLOSED
G4 216 G3 218 G2 G1 217 220
FRONT GANG
E
F
PC BOARD
THERMAL LIGHT
J5
D1
J3
INPUT PLUG
PL1
S2
R1
S3
MODE SWITCH
TL1
SV1
S2A
BYPASS/
STABILIZER
H1
X1 X2
FAN
R 222 W 221
( STICK - CLOSED
TIG - OPEN )
R2
ARC STARTER AS’BLY
236A
237
C4
R3
S F
S F
W 221 (+)
R 222 (-)
J1
J2
313
314
277 276 275
277 276 275
241 244 242 243 231 233 311 312
243 244
231 233
A B C D E
B C D A E
TIG
STICK
234 235
234
235
210
232
204
236
209
230
238
201
J6
236B
217
218
G3
216
G1
G2
220
G4
POWER "ON" LIGHT
U
R
B
B
W
236A
W
REMOTE RECEPTACLE
REMOTE AMPTROL
J4
J4
SPARK GAP
B
B
AC DC+ DC-
A-C, D-E, B-F B-D, C-E, A-F, G-H B-D, A-E, C-F, G-H POLARITY SWITCH MICRO SWITCH
(REAR VIEW, SHOWN IN AC POSITION)
115VAC
B B 232 B 230 W 204 W 201 U 210 R 209
115VAC 18VAC 18VAC
78VAC
T1
L1
L2
TO GROUND PER
POLARITY SWITCH
ELECTRICAL SYMBOLS PER E1537.
TM
CURRENT CONTROL
H3
H2
H3 (230V) H2 (208V)
NATIONAL ELECTRICAL CODE
VOLTAGE RECONNECTION
230 VOLT CONNECTION (AS SHOWN)
H1 and H3 TO POWER SWITCH.
208 VOLT CONNECTION
H1 and H2 TO POWER SWITCH. H3 NOT CONNECTED: INSULATE. H2 NOT CONNECTED; INSULATE.
R 241 B 242
238 236
TOROID
L2
POS
WIRING DIAGRAM - SQUARE WAVE TIG 175 (208/ 230/ 1/ 60)
B X4 W X5 W X3 W X6 B X7
B X8
10K A-B AT MINIMUM
C2
C1
C1 AND C2 MUST ALWAYS BE CONNECTED ACROSS POWER SWITCH.
7-12-96
Enhanced Diagram