PRECISION TIG 275 WIRING DIAGRAM FOR CODE: 10893
CONTROL PANEL (VIEWED FROM REAR)
415 VOLT CONNECTION |
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CONNECT STRAP TO |
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HIGH (H4) (AS SHOWN) |
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L1 (U) | H1 | |
CONNECT STRAP TO | ||
MID (H3) |
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306 | 1 |
| 1 | 301 |
303 | 2 |
| 2 | 304B |
| 3 | METER | 3 | |
| 4 | 4 | 302 | |
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| 5 |
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| L5 |
MINIMUM |
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OUTPUT | DISPLAY |
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R4
| 301 | 1 |
304B | 302 | 2 |
303 | 3 | |
304 | 4 |
J8
CONTROL PC BOARD
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| L2 (V) |
| S1 |
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| CONNECT STRAP TO |
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| POWER SWITCH |
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| PROTECTIVE BONDING CIRCUIT |
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| LOW (H2) |
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| 220 VAC |
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| 220VAC |
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| RECEPT. |
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| H4 | H3 | H2 | A |
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| RECONNECT PANEL SUPPORT |
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| L1 (U) |
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| CB2 |
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| GND5 | GND6 |
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| C1 |
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GND1 |
| GND4 |
| L1A |
| MID |
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| 5A | 52 | |||||
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| 250 |
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| BYPASS | HIGH |
| LOW |
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| PC BOARD |
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| 251 | 50A |
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CONTROL | CASE | T1 | TO GROUND PER | CASE | 115 VAC | GAS | L2A |
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PANEL | FRONT | TRANS. | NATIONAL | BACK | RECEPT. | VALVE | L2 (V) |
| COM |
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| FOOT | ELECTRIC CODE |
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| POWER FACTOR |
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| GROUND | RECONNECT PANEL |
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| CAPACITORS |
| S X5 | 267 |
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| (OPTIONAL) |
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| H2 (220V) |
| 63.5VAC |
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STICK
TIG
MODE
316C
319
BALANCE
R2
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311A | 322 |
313C
314 | 320 |
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| 321 | 316C | 316B | 315 |
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| 316B |
| 313B |
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LOCAL |
| MAXIMUM | |||||
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| OUTPUT | ||||
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| R1 |
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| 317 | 316 | 316A | 311A | 311 | 312 |
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REMOTE |
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POST FLOW
R3
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316A | 318 | 313 |
| 304A | 5 |
| 306 | 6 |
L6 | 311 | 1 |
312 | 2 | |
| 313 | 3 |
| 314 | 4 |
| 315 | 5 |
| 316 | 6 |
| 317 | 7 |
| 318 | 8 |
| 319 | 9 |
| 320 | 10 |
| 321 | 11 |
| 322 | 12 |
| W | 1 |
| 331 |
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J9
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| H3 (380V) |
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| X6 | 268 | |
J6 | 1 | W 221 |
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| TO GROUND PER |
| H4 (415V) |
| S | X3 | 231 | ||
2 | R 222 |
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| NATIONAL | 250 | H5 (440V) |
| 115VAC | 231A | ||||
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| L4 |
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| ELECTRICAL CODE |
| 201 | X9 | S |
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| 216 | X1 |
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| 18VAC |
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| X4 | 232 | |
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| 204 | F |
| 105VAC |
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| X10 | F |
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| X14 | 52 | |||
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| SCR1 |
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| G1 | R222 W221 |
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| X7 |
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| 1 | G1 | (+) |
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| W209 | S |
| 78VAC |
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| 218 | POS |
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| 20VAC |
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| 2 | G3 |
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| R210 | X8 | F | F |
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| G4 |
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| 4 |
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| T1 |
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J4 | 5 | G2 |
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| POLARITY SWITCH MICRO SWITCH |
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| 6 | 217 |
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| 7 | 220 |
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| AC | OPEN |
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| 8 | 218 |
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| DC+ | CLOSED |
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| 9 | 217 |
| FRONT GANG |
| DC- | CLOSED |
| 232 |
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| 10 | 216 |
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| 115VAC |
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| D |
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| B |
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| G3 |
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| S2A NO |
| 15A |
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| SCR3 | E | A |
| H | NC |
| 233 |
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WIRING
(STICK) |
| (AUTO BAL) | (REMOTE) | (P. FLOW) |
| (THERMAL) |
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+ R - | + G - | + G - | + G - | + | Y | - | ||||
B | W | B | W | B | W | B | W | B |
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331 |
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| 333 | 334 |
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| ADVANCED CONTROL PANEL |
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| (OPTIONAL) |
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FREQ |
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| ON TIME |
| BACKGROUND |
| DOWN SLOPE |
| B | 6 | |
332 | W | 2 | |
B | 7 | ||
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333 | W | 3 | |
B | 8 | ||
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334 | W | 4 | |
B | 9 | ||
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335 | W | 5 | |
B | 10 | ||
L7 | |||
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J10
J7
N.D.
N.C.
J3
1 2 3 4 5 6 7 8 9 10
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| 220 |
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| NEG |
| G |
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| 233B | 231 |
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| 266A |
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| 233ACR4 |
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| 220A |
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| 265A | 0 CR4 1 |
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| D1 |
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| SCR4 |
| B | X2 |
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| 2 | 6 |
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| 1 | 252 | G4 |
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| 265 | 266 | 263 | 262 |
| 234 |
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| 9 | 253 |
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| SV2 | ||
| 2 | 269 |
| NEG |
| POLARITY |
| 253 |
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| N.F. | WATER VALVE | ||
| 10 | 270 |
| 252 | SWITCH |
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| IN AC POSITION) |
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| 3 | 271 |
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| 11 | 220B |
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| 6 | 265 |
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| C1,C2 |
| POWER FACTOR CAPACITORS, 50/460 (OPTIONAL) | |
J11 | 12 | 266 |
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| C4,C5 |
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5 | 262 |
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| R7 | 271A | BACKGROUND |
| C6 |
| HIGH VOLTAGE CAPACITOR, .0015/12kV | |||
| 13 | 263 |
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| RECTIFIER |
| C7 |
| PHASE SHIFT CAPACITOR, 15uF/250VAC | ||
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| 269 | R8 | 267 | C8,C9 |
| HIGH FREQ PROTECTION CAPACITORS, .22/400 | |||
| 4 | 213 |
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| 271 |
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DIAGRAM
PRECISION TIG 275
| R9 |
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| R12 |
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| 401C |
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401B | 402 | 403 |
| 401D | 405 | 406 | 408 | 409 | 410 |
| 407 | 401D |
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| L10 |
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401A | 401B | ON |
| 404 | (PULSE ON) |
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411 |
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TRIGGER |
| PULSE |
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| 5 J5A | |
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| PROTECTION PCB |
| L9 |
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| A |
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| B |
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| A | 4 |
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| D |
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| J23 | 3 |
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| C | 2 | J22 | 4 |
| 4 | J5 | |||
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| E |
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10K |
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| D | 3 |
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AT MINIMUM |
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| E | 6 |
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OPTIONAL |
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| F | 5 |
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REMOTE |
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| RECEPTACLE |
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AMPTROL |
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OR N.C.
J3
1 2 3 4 5 6 7 8 9 10
401 | 1 | OPTIONTIG PCB (OPTIONAL) |
402 | 2 | |
403 | 3 | |
W | 12 | |
404 | 4 |
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405 | 5 |
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406 | 6 |
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407 | 7 |
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408 | 8 |
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409 | 9 |
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410 | 10 |
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411 | 11 |
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1 2 3 4 5 6 7 8 9 10
J2
N.B.
| 14 | 214 |
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| 268 | CB1 | CIRCUIT BREAKER, 15 AMP |
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| CB2 | CIRCUIT BREAKER, 5 AMP |
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| 7 | 201 |
| L13 |
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| 270 |
| 262 | CR4 | 12V DC RELAY COIL |
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| 15 | 204 |
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| 263 | D1 | FREE WHEELING DIODE |
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| 8 | W209 |
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| 201 | D2 | BACKGROUND DIODE |
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| 16 | R210 |
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| 204 | L1 | OUTPUT INDUCTOR (CHOKE) |
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| 220B |
| L2,L3 | HIGH FREQ INDUCTORS |
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| W209 |
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| L4 | RF TOROID CHOKES |
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| 220A |
| R210 |
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| R1 | OUTPUT CONTROL POTENTIOMETER, 10K | |||||
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| R2 | BALANCE CONTROL POTENTIOMETER, 10K | |||
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| R3 | POST FLOW POTENTIOMETER, 10K |
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| R4 | MIN OUTPUT POTENTIOMETER, 10K |
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| R5 | PHASE SHIFT RESISTOR, 200/100 |
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| R6 | HOLDING RESISTOR, 50/225 |
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| FAN |
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| R7 | RESISTOR, 20/100 |
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| R8 | RESISTOR, 5/50 |
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| R9 | FREQ CONTROL POTENTIOMETER, 10K | |||
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| 233A | 231A | C |
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| R10 | ON TIME CONTROL POTENTIOMETER, 10K | |||||
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| TRANSFORMER |
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| R11 | BACKGROUND POTENTIOMETER, 10K |
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| 231E |
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| BYPASS/ | PRIMARY | TRANSFORMER |
| R12 | DOWN SLOPE POTENTIOMETER, 10K |
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| THERMOSTAT |
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| 260 |
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| STABILIZER |
| SECONDARY |
| S1 | INPUT POWER SWITCH |
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| THERMOSTAT |
| S2 | POLARITY SWITCH |
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| PC BOARD |
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| 233A |
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| S2A | MICROSWITCH ON POLARITY SWITCH |
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| GAS VALVE |
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| SCR1,2,3,4 | MAIN POWER SCR’S |
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| SV1 |
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| SV1 | GAS SOLENOID VALVE, 115VAC |
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| 235 |
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| 233A | SV2 | WATER SOLENOID VALVE, 115VAC (OPTIONAL) | ||||
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| 231D |
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| T1 | MAIN TRANSFORMER |
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| 231E |
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| E | F |
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| 231A | T2 | HIGH VOLTAGE TRANSFORMER |
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| L11 |
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| T3 | HIGH FREQ TRANSFORMER |
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| LEAD COLORING CODE: | COMPONENT VALUE | ||||
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| UNITS: |
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| L2 | 238 | C6 |
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| N.A. CONNECTION IS PIN TO PIN BETWEEN J23 AND J5. |
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| 1 |
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| S |
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| N.B. ROBOTIC INTERFACE CONNECTION. |
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| OHMS/WATTS | ||||||
| 260 |
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| T3 | R6 | N.C. REMOVE JUMPER PLUG IN J3 WHEN INSTALLING | CAPACITORS: | ||||||||
| 2 |
| T2 | SPARK |
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J12 | 3 | 235 |
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| GAP |
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| TIG OPTION PC BOARD. |
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5 |
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| N.D. DISCONNECT JUMPER LEAD BETWEEN PIN 1 AND |
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| 236 |
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| 6 |
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| 284 | 285 |
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| EXAMPLE: THIS IS PIN 7 | ||||||
| 4 | 233A |
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| PIN 2 IN J3 TO DOUBLE PREFLOW & POSTFLOW TIMES. | 1 2 3 | ||||||||
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| F | L3 | 239 |
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| N.E. DISPLAY TOGGLE SHOWN IN MIN AMP POSITION. | 7 0F CONNECTOR J5 |
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| 237 |
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| FRONT |
| N.F. PLUGS INTO LOWER SWITCHED RECEPTACLE. | 8 |
| 14 | 1 2 3 | 8 | |||
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| 236 |
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| WORK |
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| J5 | |||||
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| LATCH |
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| R5 | C7 |
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| ELECTRODE |
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| ARC STARTER AS’BLY |
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| VIEW OF CONNECTOR ON PC BOARD |
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| REAR |
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| ELECTRICAL SYMBOLS PER E1537. |
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| 236B |
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| ELECTRODE |
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| B | |
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ENHANCED DIAGRAMS
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number..