Wiring diagram, Square wave tig 175 pro – Lincoln Electric IM688 SQUARE WAVE TIG 175PRO User Manual
Page 27
20
WIRING DIAGRAM
20
SQUARE WAVE TIG 175 PRO
415 VOLT CONNECTION (AS SHOWN)
VOLTAGE RECONNECTION
W
22
1
(+
)
R
22
2
(-
)
21
7
21
8
G2
G3
22
0
21
6
G4
WIRING DIAGRAM - SQUARE WAVE TIG 175 PRO (240/380/415/1/50/60)
FAN
CONNECTED ACROSS POWER SWITCH.
C1 AND C2 MUST ALWAYS BE
C2
SWITCH STUD TO H3. TIGHTEN NUTS.
CONNECT COPPER LINK FROM POWER
277
(REAR VIEW,
243
S2
275
B
233
241
C
J6
(+)
20
1
23
6
236A
CURRENT CONTROL
AMPTROL
REMOTE
RECEPTACLE
REMOTE
E
F
C
POWER "ON" LIGHT
233
231
R2
277
312
244
275
NC
NO
CLOSED
G
CRM30796
A
E
F
TM
217
L2
X1
ARC STARTER AS’BLY
L3
L4
236A
R3
115VAC
238
POS
236
R
U
B
SV1
AT MINIMUM
10K A-B
21
0
20
9
23
2
23
0
23
8
23
4
23
5
234
235
G2
G4
218
T4
D1
R1
TIG - OPEN )
( STICK - CLOSED
TIG
STICK
S
S
F
20
4
B
B
W
W
A
J5
B 242
S2A
T1
R 241
H
DC+
244
H1
276
L2
G3
B
B
TL1
B
Y
THERMAL LIGHT
SWITCH
POLARITY
243
276
242
311
216
D
F
E
C
C
D
D
A
236B
SHOWN IN AC POSITION)
A
F
R 222
W 221
W
J4
ELECTRICAL SYMBOLS PER E1537.
313
314
G1
L10538-1
L1
78VAC
B X7
W X6
W X5
18VAC
W X3
B X4
18VAC
B 230
W 204
H2 (240V)
W 201
H3 (380V)
U 210
R 209
231
J3
J2
J1
H1
C1
{
F
220
G1
TOROID
115VAC
B 232
B
(-)
115VAC
H4 (415V)
A-C, D-E, B-F
B-D, C-E, A-F, G-H
POLARITY SWITCH MICRO SWITCH
B-D, A-E, C-F, G-H
AC
SCR1
DC-
L1
SCR2
D
FRONT GANG
E
SCR3
SCR4
B
(-)
BYPASS/
STABILIZER
PC BOARD
C3
PL1
SPARK
GAP
S
T3
S3
F
MODE SWITCH
C4
237
J4
H3
H4
H2
OPEN
B X8
CLOSED
X2
X1
SWITCH STUD TO H2. TIGHTEN NUTS.
CONNECT COPPER LINK FROM POWER
240 VOLT CONNECTION
380 VOLT CONNECTION
SWITCH STUD TO H4. TIGHTEN NUTS.
CONNECT COPPER LINK FROM POWER