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Lincoln Electric INVERTEC SVM101-B, Руководство по обслуживанию

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V300-I

Section E-1

Section E-1

Theory of Operation ...............................................................................................Section E

Power Supply Operation ......................................................................................E-2
Pre Charge and Protection Circuitry ....................................................................E-3
Switch Board and Main Transformer ...................................................................E-4
Control and Output Circuitry ................................................................................E-5
Field Effect Transistor (FET) Operation ...............................................................E-6
Pulse Width Modulation .......................................................................................E-7
Protective Circuits ................................................................................................E-8

TABLE OF CONTENTS

- THEORY OF OPERATION SECTION -

FIGURE E.1 – V300-I BLOCK LOGIC DIAGRAM

1ø OR 3ø DETETCTION (H5)

LINE
SWITCH

INPUT
RECTIFIER

AC1
AC2
AC3

A-LEAD

AUXILIARY
TRANSFORMER

TO 
WIREFEEDER

18VAC

24VAC

POWERBOARD

24VDC

PULSE
TRAIN

DRIVER
BOARD

PRE-CHARGE

PRE-CHARGE

2ND STEP PWM

1ST STEP PWM VOLTAGE

15VDC-CONTROL BOARD FUNCTION VOLTAGE

24VAC-THERMOSTATS-GUN TRIGGERING

LOCAL
REMOTE

METER MODE

POT

POT

PROTECTION
BOARD

<1 VDC

RIGHT SWITCH BOARD

FET MODULES

CAP

FET MODULES

FAN

1
2
3

CONTROL
BOARD

Y-Y FEEDBACK

CR1

CR2

3A

POWER SWITCH
SECTIONS
20KHZ

LEFT SWITCH BOARD

FET MODULES

CAP

FET MODULES

CURRENT
TRANSFORMER

MAIN
TRANSFORMER

CHOKE

RECTIFIER
HEATSINK

BOTTOM

1 DIODE

5 DIODES

5 DIODES

TOP

TOP

1 DIODE

CHOKE

CHOKE

SHUNT

CURRENT FEEDBACK-PROTECTION

VOLTAGE FEEDBACK

Содержание INVERTEC SVM101-B

Страница 1: ...NS CON TAINED THROUGHOUT And most importantly think before you act and be careful SERVICE MANUAL For use with machines having Code Number 9825 THRU 10450 Return to Master TOC Return to Master TOC Retu...

Страница 2: ...NJURY OR DEATH KEEP CHILDREN AWAY PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strong...

Страница 3: ...ver dip the electrode in water for cooling 3 h Never simultaneously touch electrically hot parts of electrode holders connected to two welders because voltage between the two can be the total of the o...

Страница 4: ...If this is not possible cover them to prevent the welding sparks from starting a fire Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to ad...

Страница 5: ...soudage l aide d crans appropri s et non inflammables 4 Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gant...

Страница 6: ...OR ALL SECTIONS Safety i iv Installation Section A Operation Section B Accessories Section C Maintenance Section D Theory of Operation Section E Troubleshooting and Repair Section F Electrical Diagram...

Страница 7: ...n to Master TOC V300 I Section A 1 Section A 1 TABLE OF CONTENTS INSTALLATION SECTION Installation Section A Technical Specifications A 2 Location A 3 Electrical Installation A 3 Input Connections A 4...

Страница 8: ...3 Volts at Rated Duty Cycle Amps Amperes 60 Duty Cycle 200 28 100 Duty Cycle 165 26 5 Welding Constant Open Auxiliary Current Range Circuit Voltage Power 5 200 Amps 60 70 VDC 42 VAC 5 5 Amps 24 VAC 1...

Страница 9: ...sses It is designed to be used with the LN 25 and LN 7 semiautomatic wire feeders ELECTRIC SHOCK can kill Have an electrician install and ser vice this equipment Turn the input power off at the fuse b...

Страница 10: ...99 and S19309 or S19405 in Section F of this manual 4 Place the local remote switch in the remote posi tion if output control is desired at the wire feeder rather than the Invertec LN 25 must have K43...

Страница 11: ...d pendant type GMAW Pulsing option for the V300 I Power Source See the Mig Pulser s IM manual IM555 for connection information K900 1 DC TIG STARTER CONNECTION This versatile new kit was made to mate...

Страница 12: ...5 rated Duty Length Up 61 76m Cycle Current 61m 200 ft 200 250 ft 100 250 1 0 1 0 60 300 1 0 2 0 Quick Disconnect Plugs A quick disconnect system is used for the welding cable connections The welding...

Страница 13: ...urn to Master TOC Return to Master TOC Return to Master TOC V300 I Section B 1 Section B 1 TABLE OF CONTENTS OPERATION SECTION Operation Section B Operating Instructions B 2 Controls and Settings B 2...

Страница 14: ...sion Keep flammable material away Do not weld on closed containers ARC RAYS can burn eyes and skin Wear eye ear and body protection See additional warning information at front of this operator s manua...

Страница 15: ...igger to energize the welding ter minals ARC FORCE INDUCTANCE CONTROL This control functions in all modes except GTAW For CC modes this control acts as an Arc Force adjust ment The arc is soft at the...

Страница 16: ...h does not change the welding polarity AUXILIARY POWER A 24 VAC 1 amp supply is included for use with the LN 25 wire feeder 24 volts needed for K431 and K432 options This supply is protected by a self...

Страница 17: ...Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC V300 I Section C 1 Section C 1 TABLE OF CONTENTS ACCESSORIES SECTION Accessories Section C Options Accessories C 2...

Страница 18: ...control circuitry to a 6 pin receptacle and to a 14 pin receptacle Adapter per mits remote output control of Invertec by means of K857 Remote Control K812 Hand Amptrol or K870 Foot Amptrol Allows rem...

Страница 19: ...TOC Return to Master TOC V300 I Section D 1 Section D 1 TABLE OF CONTENTS MAINTENANCE SECTION Maintenance Section D Input Filter Capacitor Discharge Procedure D 2 Preventive maintenance D 3 Overload T...

Страница 20: ...eck voltage across terminals of all capacitors with a DC voltmeter Polarity of capacitor termi nals is marked on PC board above terminals Voltage should be zero If any voltage remains repeat this capa...

Страница 21: ...em is fixed by the new board reinstall the old board and see if the problem reoccurs If the problem does not reoccur check the wiring harness and plugs for loose connec tions PREVENTIVE MAINTENANCE 1...

Страница 22: ...to Master TOC Return to Master TOC Return to Master TOC FIGURE D 2 LOCATION OF MAINTENANCE COMPONENTS ITEM COMPONENT QTY NO PC BOARDS CONTROL 1 1 DRIVER 1 2 PROTECTION 1 3 SWITCH 2 7 POWER 1 10 INPUT...

Страница 23: ...TCTION H5 LINE SWITCH INPUT RECTIFIER AC1 AC2 AC3 A LEAD AUXILIARY TRANSFORMER TO WIREFEEDER 18VAC 24VAC POWERBOARD 24VDC PULSE TRAIN DRIVER BOARD PRE CHARGE PRE CHARGE 2ND STEP PWM 1ST STEP PWM VOLTA...

Страница 24: ...rol Board and a 24v d c supply to the Driver Board to operate the Pre charge Relays E 2 E 2 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC...

Страница 25: ...phase or three phase and pass that information to the Control Board The maximum output of the machine will be limited to approximately 250 amps with single phase input and 360 amps with 3 phase input...

Страница 26: ...r Signals from the Current Transformer insure that one switch circuit is turned off before the other is gated on Field Effect Transistor operation and Pulse Width Modulation are discussed in more deta...

Страница 27: ...ting determines which feedback signal voltage or current will have the most relevance However both signals are used in all modes The Control Board also monitors signals from the ther mostats and the P...

Страница 28: ...shows the FET in an active mode When the gate signal a positive DC voltage relative to the source is applied to the gate terminal of the FET it is capable of conducting current A voltage supply con ne...

Страница 29: ...ow much time is devoted to conduction in the positive and negative portions of the cycle Changing the pulse width is known as MODULA TION Pulse Width Modulation PWM is the varying of the pulse width o...

Страница 30: ...roblem or air obstruction must also be corrected PROTECTIVE CIRCUITS Protective circuits are designed into the Invertec machine to sense trouble and shut down the machine before the trouble damages th...

Страница 31: ...lter Capacitor Discharge Procedure F 11 Output Pilot Circuit Test F 13 Protection Board Output Test F 17 Capacitor Balance Test F 21 Switch Board Test F 25 Snubber Resistor Test F 29 Output Diode Test...

Страница 32: ...s the obvious external possibilities that may contribute to the machine symptom Perform these tests checks in the order listed In general these tests can be con ducted without removing the case wrap a...

Страница 33: ...Remove the PC board from the static shielding bag and place it directly into the equipment Don t set the PC board on or near paper plastic or cloth which could have a static charge If the PC board can...

Страница 34: ...D2 D3 D4 and D5 Output Diodes D7 D8 D9 D10 and D11 Note On newer codes where Diode Modules are used in place of individual diodes both modules on a heat sink assembly should be replaced if one fails C...

Страница 35: ...ponent D13 3 Check for broken leads to pri mary of Auxiliary Transformer T1 4 Possible open primary coil of Auxiliary Transformer T1 No output but fan operates and the meter display is on Output Termi...

Страница 36: ...itches off and repeats cycle Check input voltages and recon nection procedures See Instal lation section Check output terminal switch S4 and or Remote Trigger Options i e wire feeders guns cables etc...

Страница 37: ...while welding while connected to single phase supply Normal operation Nothing is wrong No test necessary The single phase operation is detected by the Protection Board and the output cur rent is limit...

Страница 38: ...hine on local con trol Check input voltages and input volt age reconnect procedures See Installation section of this manual 1 Check Mode Switch S2 for dam age and continuity 2 Check for continuity bet...

Страница 39: ...rect electrode for your application 1 Check for loose or burned con nections at choke shunt and output studs See wiring dia gram in Section G 2 Test and inspect D6 D12 L1 and L2 See Wiring Daigram in...

Страница 40: ...V300 I NOTES F 10 F 10 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC...

Страница 41: ...ns detailed throughout this manual If for any reason you do not understand the test procedures or are unable to per form the test repairs safely contact the Lincoln Electric Service Department for ele...

Страница 42: ...nnect resistor leads across the two capacitor terminals Hold resistor in place for 10 seconds DO NOT TOUCH CAPACITOR TERMINALS WITH YOUR BARE HANDS 7 Repeat discharge procedure for capacitor on other...

Страница 43: ...er form the test repairs safely contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed Call 1 888 935 3877 V300 I F 13 F 13 Return to Section TOC...

Страница 44: ...erform Input Capacitor Discharge test as described in the Maintenance Section 3 Remove the four screws that hold the Control Panel to the frame 4 Move the Control Panel forward and to the left so that...

Страница 45: ...J4 Pin 11 a If voltage is 24v a c thermostats transfor mer T1 and switch S4 are OK Go on to Step 8 b If voltage is 0v a c test the following com ponents individually Auxiliary Transformer T1 Fan Therm...

Страница 46: ...V300 I NOTES F 16 F 16 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC...

Страница 47: ...afety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to per fo...

Страница 48: ...lt also supports a resistor 5 Slide the through bolts toward the Control Panel until the brackets are disconnected and resistors are loose Be careful when loosening these through bolts as they secure...

Страница 49: ...tection Board Make sure contact is made with conductor materi al NOTE Right angle thin gauge probes are best for this test With probes attached plug the J8 block into the PC board 9 Turn main power ON...

Страница 50: ...CTION BOARD OUTPUT TEST cont TEST PROCEDURE 12 Open S4 and Turn Power OFF 13 Move probes to test between leads 306 and 275 See Figure F 6 14 Turn Power ON and close S4 If voltage is less than 1 VDC Pr...

Страница 51: ...please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to per form the test repairs safely contact t...

Страница 52: ...and R9 are OK Go to Dynamic Capacitor Balance Test b If more than 25 VDC difference is measured between the Switch Boards test each of the fol lowing components Capacitors C1 and C2 and Resistors R1 a...

Страница 53: ...ction TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE F 7 SWITCH BOARD TEST POINTS L8604 1 L8604 1 SWITCH SWI...

Страница 54: ...V300 I NOTES F 24 F 24 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC...

Страница 55: ...oughout this manual If for any reason you do not understand the test procedures or are unable to per form the test repairs safely contact the Lincoln Electric Service Department for electrical trouble...

Страница 56: ...ll wiring harness leads 401 403 1 8 9 12 4 5 402 404 from the Switch Boards 3 Fold the leads up so they do not interfere with the exposed PC board terminals See Figure F 8 4 Using an ohmmeter perform...

Страница 57: ...than Shorted Replace both Snubber Test 100 ohms Switch Boards 4 5 9 Less than OK None Continue 100 ohms Greater than Open Replace both Snubber Test 1K ohm Switch Boards 1 8 9 Less than OK None Contin...

Страница 58: ...on Repair Action Next Procedure Notes 12 401 403 Greater than OK None Continue 1K ohm Less than Shorted Replace both Snubber Test 100 ohms Switch Boards 401 403 12 Less than OK None Continue 100 ohms...

Страница 59: ...and will invalidate your factory warranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not u...

Страница 60: ...turn to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SNUBBER RESISTOR TEST cont L8604 1 L8604 1 SWITCH SWITCH 9 R W 12 W R 401 403 1 8 4 5 402 404 FIGURE F 9 SNUBBER RESIS...

Страница 61: ...rmed by only Lincoln Electric factory trained personnel Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory war...

Страница 62: ...0 ohms one or more Output Diode is shorted Test all Output Diodes D 1 thru D 12 or diode modules individually NOTE On codes prior to 10200 the diodes should also be tested individually to check for Op...

Страница 63: ...NING Service and repair should be performed by only Lincoln Electric factory trained personnel Unauthorized repairs performed on this equipment may result in danger to the technician or machine operat...

Страница 64: ...faulty NOTE Faulty Capacitors could be the reason for a defective Input Rectifier Visually inspect Capacitors for leakage damage etc and use appropriate test equipment to determine com ponent integri...

Страница 65: ...alidate your factory warranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the...

Страница 66: ...75D a If 15 VDC is present test is OK Go to step 6 b If 15 VDC is not present check Power Board and leads 302 and 275D for continuity and wire breakage F 36 F 36 Return to Section TOC Return to Sectio...

Страница 67: ...dings Cleaning and sol dering the terminals to the leads may eliminate that problem If tests for steps 5 7 are OK and the machine contin ues to experience the problem the Control Board should be repla...

Страница 68: ...tory warranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the test procedures...

Страница 69: ...disconnect any wires The machine must be functional to perform tests 4 Arrange the PC boards and wiring so you can easi ly perform the tests NOTE Do not allow live connections to touch each other 5 Tu...

Страница 70: ...8 b If 15 VDC is present go to step 11 F 40 F 40 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC...

Страница 71: ...er circuit is oper ating properly b If 15 VDC is present go to step 10 10 Test for 0 1 VDC between leads 301 and 275D on Power Board a If 0 1 VDC is present AC trigger Control Board and Power Board ar...

Страница 72: ...TOC Return to Master TOC Return to Master TOC Return to Master TOC FIG F 19 OVERVOLTAGE PROTECTION DC TRIGGER CIRCUIT OVERVOLTAGE PROTECTION DC TRIGGER CIRCUIT TEST cont THESE LEADS ARE USED FOR MONI...

Страница 73: ...rator and will invalidate your factory warranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do...

Страница 74: ...perform the tests Do not disconnect from wiring harness Power Board Control Board NOTE Do not disconnect any wires The machine must be functional to perform test F 44 F 44 Return to Section TOC Retur...

Страница 75: ...is in the ON position closed 8 Test for 24 VAC between leads 223A and 210 a If 24 VAC is present then AC Trigger Circuit is functioning normally b If 0 VAC is present check Choke Thermostat and Fan T...

Страница 76: ...V300 I NOTES F 46 F 46 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC...

Страница 77: ...achine operator and will invalidate your factory warranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reas...

Страница 78: ...ontrol relay contacts closing is not heard Power Board could be faulty Go to Test B NOTE If the relays energize but there is still a suspicion that the Power Board is faulty go on to Test B F 48 F 48...

Страница 79: ...ctive See Fig F 24 9 Test for 24VDCfrom lead 309 to lead 313 J7pin 2 to J14 pin 2 If 24VDC is not present but 24VAC step 8 is cor rect the Power Board is defective 10 Test for 24VDC from lead 309 to l...

Страница 80: ...BOARD TEST cont FIGURE F 24 SIMPLIFIED TRIGGER CICUIT FROM PROTECTION BOARD OVERVOLTAGE PWM OUTPUTS TO POWER BOARD 7J6 2J6 11J4 3J4 13J36 5J36 8J33 6J34 9J4 12J4 3J31 6J22 6J4 POWER BOARD CONTROL BOAR...

Страница 81: ...e operator and will invalidate your factory warranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason yo...

Страница 82: ...cated on top of the fan shroud See Figure F 25 F 52 F 52 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas...

Страница 83: ...ring and remove the Capacitor from the clamp ring See Figure F 28 F 53 F 53 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Mast...

Страница 84: ...crements of 10 inch pounds alternating between the two See Figure F 27 7 Tighten the set screw of the clamping ring 8 Perform the Test After Repair of Switch Boards and or Capacitors F 54 F 54 Return...

Страница 85: ...arranty For your safety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the test procedures or ar...

Страница 86: ...e mounting sur faces of the new PC board and to the Capacitor terminals DO NOT allow the compound to enter the mounting screw holes because it can distort the torque values 8 Prepare to mount the new...

Страница 87: ...fety and to avoid electrical shock please observe all safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform...

Страница 88: ...supply fuse holders NOTE These fuses should be installed to protect against excessive current flow caused by a short circuit during the procedure 8 Turn on the machine 9 With the output free of a loa...

Страница 89: ...l safety notes and pre cautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to per form the test repairs safely contact the Lincoln Electr...

Страница 90: ...unting bracket 8 Mount the replacement diodes to the heat sink IMPORTANT The replacement diodes will come with an instruction sheet that addresses surface preparation and torque values Failure to foll...

Страница 91: ...nk 7 Mount the new module and re connect the leads IMPORTANT The replacement module will come with an instruction sheet that addresses surface preparation torque values and hardware changes Failure to...

Страница 92: ...450 440 50 or 60 1 38 425 460 60 1 50 450 380 50 or 60 1 67 425 575 60 OCV at rated INPUT V300 PRO V300 I 60 75V MAXIMUM ACCEPTABLE OUTPUT AMPS AT MINIMUM OUTPUT SETTINGS Output Min Max acceptable all...

Страница 93: ...50 G 9 Entire Machine Schematic G 10 Driver PC Board Schematic S20216 G 11 Driver PC Board Assembly L8660 G 12 Driver PC Board Schematic S20799 G 13 Driver PC Board Assembly L9134 G 14 Switch Board Sc...

Страница 94: ...4 11 10 275F 2 3 301 6 4 7 8 5 210 275A 1 3 4 2 1 2 502 215 306 5 9 223B 502 Y S5 METER FUNCTION SWITCH 301 D6 D4 D5 J5 J6 D11 D12 D10 D9 D8 D7 N E 224 210 2AMP 6AMP 110 115 VAC H2 H3 H4 A 12B 9B 9B...

Страница 95: ...14 4 11 10 275F 2 3 301 6 4 7 8 5 210 275A 1 3 4 2 1 2 502 215 306 5 9 223B 502 Y S5 METER FUNCTION SWITCH 301 D6 D4 D5 J5 J6 D11 D12 D10 D9 D8 D7 N E 224 210 6AMP H2 H3 H4 A 12B 9B 9B R 9 12C 9A 53 1...

Страница 96: ...2 5 0 2 5 W 6 H 5 1 1 0 1 2 5 3 4 1 1 2 9 6 8 8 1 3 1 2 7 6 1 4 4 1 1 1 0 2 7 5 F 2 3 3 0 1 6 4 7 8 5 2 1 0 2 7 5 A 1 3 4 2 1 2 5 0 2 2 1 5 3 0 6 5 9 2 2 3 B 5 0 2 Y 3 0 1 D 6 D 4 D 5 J 6 D 1 1 D 1 2...

Страница 97: ...BOARD RIGHT 212D 503 501 504 0V 24V 42V 1 4 5 3 2 1 4 2 3 001 400 C8 R10 001 400 10 2W R13 C7 COLOR CODE R RED 250 25W 6 H5 1 10 12 5 3 4 11 2 9 6 8 8 13 12 7 6 14 4 11 10 275F 2 3 301 6 4 7 8 5 210...

Страница 98: ...1 2 9 6 8 8 1 3 1 2 7 6 1 4 4 1 1 1 0 2 7 5 F 2 3 3 0 1 6 4 7 8 5 2 1 0 2 7 5 A 1 3 4 2 1 2 5 0 2 2 1 5 3 0 6 5 9 2 2 3 B 5 0 2 Y 3 0 1 D 6 D 4 D 5 J 6 D 1 1 D 1 2 D 1 0 D 9 D 8 D 7 N E 2 2 4 2 1 0 2...

Страница 99: ...2 1 4 2 3 001 400 C8 R10 001 400 10 2W R13 C7 COLOR CODE R RED 250 25W 6 H5 1 10 12 5 3 4 11 2 9 6 8 8 13 12 7 6 14 4 11 10 275F 2 3 301 6 4 7 8 5 210 275A 1 3 4 2 1 2 502 215 306 5 9 223B 502 Y 301...

Страница 100: ...C 12B 52 3 G 41 J5 J16 D 2 W ON 4 A 316 4 5 D 25W 12A RIGHT 9D 212D 5 4 6 3 2 4 PANEL 226 CV GMAW 2 3 TP6 5 25W 1 400A BOTTOM 401 403 TOP 450V 25W RIGHT 2200 F 25 BOARD H1 25W 1 200 5 H2 302 4 5 6 2 N...

Страница 101: ...RED 250 25W 6 H5 1 10 12 5 3 4 11 2 9 6 8 8 13 12 7 6 14 4 11 10 275F 2 3 301 6 4 7 8 5 210 275A 1 3 4 2 1 2 502 215 306 5 9 223B 502 Y 301 D6 D4 D5 1 7 8 14 J6 D11 D12 D10 D9 D8 D7 N E 224 210 6AMP...

Страница 102: ...R 8 229 286 TP6 250 25W ARC ARC 4 5 6 7 8 1 3 2 275F J1 1 3 4 2 1 2 B W TP4 C6 J2 J3 1 2 3 4 5 6 7 8 9 10 11 12 J4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J5 220 204A 76 203 206 227 213 214 225 226 229 228 2...

Страница 103: ...reference only It may not be accurate for all machines covered by this manual Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Ma...

Страница 104: ...0 I PC BOARD ASSEMBLY DRIVER L8660 G 12 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to...

Страница 105: ...TE This diagram is for reference only It may not be accurate for all machines covered by this manual Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to M...

Страница 106: ...in danger to the Machine Operator or Technician Improper PC board repairs could result in damage to the machine ELECTRICAL DIAGRAMS G 14 V300 I PC BOARD ASSEMBLY DRIVER 9134 G 14 Return to Section TOC...

Страница 107: ...1W 6 2V DZ9 47 5 R 3 6 BYT12P600 C1 A1 A1 39 2K R39 221 R 2 1 00K R 2 1 20 R 3 1 1 50K R 3 0 100 R 1 1N4936 D6 600mA 40V Q11 1W 3 3V DZ8 1N4936 D1 1 00K R 2 0 C A P A C I T O R S B G E N E R A L I N...

Страница 108: ...B4 B5 B6 CONNECTOR tab QC edge offset B7 B8 B9 B10 B11 1 4 B12 C1 C5 C6 C7 CAPACITOR CEMO 022 50V 20 C2 C8 CAPACITOR CEMO 2700P 50V 5 C3 C4 CAPACITOR PPF 047 1200V 5 D1 D2 D3 D4 D5 D6 DIODE AXLDS 1A 4...

Страница 109: ...TE This diagram is for reference only It may not be accurate for all machines covered by this manual Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to M...

Страница 110: ...R5 R4 R32 R2 R24 R31 R30 R20 R23 R21 R18 R3 R1 R29 R17 R8 R6 R9 R33 R34 R27 R25 R26 R19 C8 C2 C5 C6 C1 C7 DZ8 DZ5 D6 D1 DZ9 D7 DZ12 DZ7 D8 DZ3 DZ4 DZ6 D2 D3 D4 D5 D10 D9 DZ1 DZ2 Q2 Q3 Q1 Q10 B8 B4 Q1...

Страница 111: ...2 C3 X3 8 9 10 50V 022 C15 AMPS OCV C VOLTS D VI DPC A ACTUAL B AMPS ARC TIG VOLTS 50V 022 C54 50V 022 C35 J4 8 1W 5 1V DZ9 35V 4 7 C48 22 1K R 9 8 150K R 9 1 50V 022 C67 35V 4 7 C39 301 R 8 2 2 67K R...

Страница 112: ...urages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician Improper PC board repairs could result in...

Страница 113: ...USING Molex 8 pin P2 plugs into J2 PLUG HOUSING Molex 4 pin P3 plugs into J3 PLUG HOUSING Molex 2 pin P4 plugs into J4 PLUG HOUSING Molex 12 pin P5 plugs into J5 PLUG HOUSING Molex 14 pin Q1 Q2 TRANSI...

Страница 114: ...Master TOC ELECTRICAL DIAGRAMS G 22 V300 I SCHEMATIC PROTECTION PC BOARD M16097 G 22 NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual Return to S...

Страница 115: ...B52 B53 CONNECTOR tab 1 4 C1 C3 C4 C5 C6 CAPACITOR ceramic C2 CAPACITOR tantlm etc 27 f 35VDC D1 D3 D4 D5 D6 D7 DIODE 1A 400V D8 DIODE 1A 1000V DZ1 DIODE IN4740 Zener 10V 1W J8 RECEPTACLE Molex mini...

Страница 116: ...E This diagram is for reference only It may not be accurate for all machines covered by this manual Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Ma...

Страница 117: ...urn to Master TOC D C A B F E POWER BOARD L8033 4 Item Identification X1 REGULATOR ASBLY C2 C7 C11 022 50 J7 CONNECTOR X5 VOLT REG HEAT SINK ASBLY C3 150 50 D1 D2 D3 D4 D5 D8 D9 1N4004 D10 D11 D12 D13...

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