Lincoln Electric IM609 SQUARE WAVE TIG 275 - Manual (Page 40)

F-2 WIRING DIAGRAM F-2
SQUARE WAVE TIG 275
380 VOLT CONNECTION
312
MODE SWITCH
STICK
243
248
AT MINIMUM
D F
260
N.C.
N.A.
N.B.
50
B C
PRIMARY
TOROID
THERMOSTAT
H5
313
255
217
G3
R 222 (-)
G1
C2
F2
DOWNSLOPE CONTROL
G
A-C, D-E, B-F B-D, C-E, A-F, G-H CONNECTOR PIN NUMBERS: TL1 R6 S2A
AC
D2
G3 217
275C 275B
4 STEP TIG
G-GREEN R-RED O-ORANGE
REAR GANG
DC+ DC-
CURRENT CONTROL
R3
N.A. CONNECTION IS PIN TO PIN BETWEEN
ARC STARTER AS'BLY
S
R5
236B
TIG
OR
TM
E
276
A
F
J6
C
C
E
J7A
SV2
REMOTE
245 252 253
236A
J7
POSTFLOW CONTROL
238
231
238
B
234
232A
OHMS/WATTS
THERMOSTAT
(U)
CAPACITORS: RESISTORS:
MFD/VOLTS
UNITS:
COMPONENT VALUE
SV2 SCR1,2,3,4 S3 R7
STABILIZER
J8
TL1
-
+
B 242
S2
Y
POLARITY
THERMAL LIGHT
277 243
W 221 (+)
PC BOARD
A
A
B C D
E
RECEPTACLE
SV1
AMPTROL
D2
REMOTE
L3
T2
115VAC
211A
220A
3
2
THERMAL LIGHT, LED HI-FREQ TRANSFORMER HIGH VOLTAGE TRANSFORMER MAIN TRANSFORMER WATER SOLENOID, OPTIONAL, 115VAC
VIEW OF CONNECTOR ON PC BOARD
3 WAY MODE SWITCH
ELECTRICAL SYMBOLS PER E1537. CB
FAN
234A
23VAC
235A
GAS VALVE
WATER VALVE (OPTIONAL)
SV1
L2
SECONDARY THERMOSTAT
CHOKE
312
H4
POS
H5 (440 V)
F1
A
H3
(V)
X1
78VAC
F
T1
115VAC
X9
51
D
E
B
L2
(-)
253
OPEN
SCR2
CLOSED CLOSED
MICRO-SWITCH
NC
FRONT GANG
IRON
FRONT
FREE WHEELING DIODE DIODE
C6
HI-FREQ INDUCTORS
F2 L1 L2 L5
MAIN SCRs
R3
GAS SOLENOID, 115VAC
W-WHITE Y-YELLOW
3 J5
NO
314
216
G4
220
NEG
R
W
B
B
W
W
X2
277C
275A
LOW
(V)
MID
(U)
50
POLARITY SWITCH MICRO SWITCH
G2
POWER FACTOR
CB
(+)
W 221
10-16-98
SCR4
232A
PROTECTIVE BONDING CIRCUIT
TO GROUND PER
NEG
T3 S2
TOROID
S1
FUSE, 5A FAST BLOW
R4 R2
TOROID
L5
F1
D
F
D1
F
10K A-B
R6
252
J4
246
J3
312
2 STEP TIG
BRASS
TERMINAL
S2A
316
A
R1
220 220A
277
DOWNSLOPE CONTROL POTENTIOMETER 100K PHASE SHIFT RESISTOR 200/100
211B
R2
CASE
BASE
277B 245
DISPLAY
255 254
S3
275
J2
249 246
J1
8
14
8
LATCH
0F CONNECTOR J5
7
EXAMPLE: THIS IS PIN 7
2
1
236
B-BLACK LEAD COLORING CODE:
PULSER
HI-FREQ PROTECTION CHOKE (TOROID) OUTPUT INDUCTOR (CHOKE)
275C
OPTIONAL
T3
B
210
209
235
212
204
201
236
261
247
F S
X4
X5 X3 X10
18VAC
211 H1 H4 (415V) H3 (380V) H2 (220V) 52 212
B 231 B 232 W 201
D1
G4 216
248
PC BOARD BYPASS
ELECTRICAL CODE
B-D, A-E, C-F, G-H
218
L2
CAPACITORS (OPTIONAL)
415 VOLT CONNECTION (AS SHOWN)
H1
C1
SCR3
G1
G2
218
X1
HIGH
R8
PC BOARD
R5
POSTFLOW CONTROL POTENTIOMETER 10K BALANCE CONTROL POTENTIOMETER 10K CURRENT CONTROL POTENTIOMETER 10K
247
BYPASS/
T1 T2
CONTROL PC BOARD
U-BLUE
POWER FACTOR CAPACITORS, 50/460
C5
(REAR VIEW, SHOWN
L4
B
242
J5
251
237
275
WIRING DIAGRAM - SQUARE WAVE TIG 275 (220/380/415/1/50/60)
CONNECT A TO HIGH (H4) CONNECT A TO MID (H3) 220 VOLT CONNECTION CONNECT A TO LOW (H2)
NATIONAL
J21
254
F
J20
270
277A
HIGH VOLTAGE CAPACITOR, .0015/12kV PHASE SHIFT CAPACITOR 15uF/250VAC
S
18VAC
X2
R 222
220VAC
POWER SWITCH
211A
S1
L1
H2
X12
220VAC
X11
RECONNECT PANEL
BACK
W X7
W 204
CASE
T1
315
C1,C2 C5
IN AC POSITION)
SWITCH
HOLDING RESISTOR 50/225
276
251
R4
SPARK GAP
ELECTRODE
1
BALANCE CONTROL
N.B. ROBOTIC INTERFACE CONNECTION.
J4 AND J20 (i.e. PIN 1 TO PIN 1).
WORK
POLARITY SWITCH
N.C. NOT PRESENT ON EARLIER PC BOARDS.
INPUT POWER SWITCH RESISTOR 1/25 RESISTOR 7.5/100 FUSE, 5A FAST BLOW CIRCUIT BREAKER, 2 AMP
C6
H
L1
R7
H1
POS
X8 X6
W 209 R 210
211
232
L10747-1
R8
SCR1
MICROSWITCH ON POLARITY SWITCH
L3,L4 R1
L1