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INSTALLATION

A-2

PRO-CUT 55

TECHNICAL SPECIFICATIONS - PRO-CUT 55

INPUT RATINGS

Single Phase Input

Input Currents

Rated Output Amps

Voltage and Hertz

208/1/60

230/1/60

460/1/60

208/1/60

230/1/60

460/1/60

Three Phase Input

Input Currents

Rated Output Amps

Voltage and Hertz

208/3/60

230/3/60

460/3/60

208/3/60

230/3/60

460/3/60

IDLE CURRENT AND WATTS

230/1/60

0.42 Amps

98 Watts

RATED OUTPUT

Duty Cycle

Rated Output Amps

50%

100%

OUTPUT

Current Range

Open Circuit Voltage

Pilot Current

25 - 55 Amps

335VDC Maximum

18 Amps @ 100%

Duty Cycle

Содержание Pro-Cut 55

Страница 1: ...NED THROUGHOUT And most importantly think before you act and be careful For use with machine code numbers Below 11000 PRO CUT 55 Return to Master TOC Return to Master TOC Return to Master TOC Return t...

Страница 2: ...he arc nor expose themselves to the arc rays or to hot spatter or metal ELECTRIC SHOCK can kill 1 a The electrode and work or ground circuits are electrically hot when the power source is on Do not to...

Страница 3: ...ric current flowing through any conduc tor causes localized Electric and Magnetic Fields EMF Cutting or gouging current creates EMF fields around torch cables and cutting machines 8 b EMF fields may i...

Страница 4: ...Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES iii iii PRO CUT 55...

Страница 5: ...ion B Accessories Section C Maintenance Section D Theory of Operation Section E Troubleshooting and Repair Section F Safety Precautions F 2 How to Use Troubleshooting Guide F 2 Troubleshooting Guide F...

Страница 6: ...pecifications A 2 Safety Precautions A 4 Select Suitable Location A 4 Stacking A 4 Lifting and Moving A 4 Tilting A 4 High Frequency Interference Protection A 4 Input Electrical Connections A 5 Ground...

Страница 7: ...d Output Amps Voltage and Hertz 208 1 60 60 55 230 1 60 55 55 460 1 60 30 55 208 1 60 44 40 230 1 60 40 40 460 1 60 23 40 Three Phase Input Input Currents Rated Output Amps Voltage and Hertz 208 3 60...

Страница 8: ...SIZES For all plasma cutting applications based on U S National Electrical Code Ambient Temperature 30 C or Less AC Input Voltage Fuse Super Lag Type 75 C at Circuit Breaker Copper Wire in Conduit AWG...

Страница 9: ...carriage if installed to lift the machine This handle is not designed to support the full weight of the machine Using it to lift the machine could cause per sonal injury or damage to the machine Eithe...

Страница 10: ...d input power cord already connected to the machine A cord connector provides a strain relief for the input power cord as it passes through the left rear access hole The cord connector is designed for...

Страница 11: ...See Figure A 2 For 460 Position the large switch to 380 460 See Figure A 2 3 Move the A lead to the appropriate terminal FIGURE A 2 RECONNECTION DIAGRAM INSTALLATION A 6 A 6 PRO CUT 55 Return to Sect...

Страница 12: ...e rear of the machine If necessary this fitting can be removed allowing plumbing access through the 1 4 in 6 4mm NPT input port on the filter body CYLINDER could explode if damaged Keep cylinder uprig...

Страница 13: ...ut with a quick connect at the case front for easy change over See Figure A 4 For more information on the torch and its components refer to the PCT 80 Operators Manual IM588 FIGURE A 4 TORCH CONNECTIO...

Страница 14: ...Equipment B 3 Operational Features and Controls B 3 Design Features and Advantages B 3 Cutting Capability B 4 Consumable Life B 4 Limitations B 4 Controls and Settings B 5 Pilot Arc Considerations B...

Страница 15: ...elf from the work and ground Always wear dry insulating gloves FUMES AND GASES can be dangerous Keep your head out of fumes Use ventilation or exhaust to remove fumes from breathing zone CUTTING SPARK...

Страница 16: ...25 to 55 amps These applications include thin gage sheet metal and expanded metal OPERATIONAL FEATURES AND CONTROLS The Pro Cut 55 comes with an ON OFF POWER SWITCH OUTPUT CURRENT CONTROL PURGE BUTTO...

Страница 17: ...y 320 starts cuts An erosion of 060 in 1 5mm is typical for end of electrode life However the electrode may last longer A green and erratic arc will indicate definite electrode failure and the electro...

Страница 18: ...sumable life Occasionally the pilot arc may sputter or start intermittently This is aggravated when the consumables are worn or the air pressure is too high Always keep in mind that the pilot arc is d...

Страница 19: ...ting speed so that the arc lag is 10 to 20 behind the travel direction Use a 5 15 leading angle in the direction of the cut Use the drag cup to maintain constant standoff for better cut quality and to...

Страница 20: ...hose expected Some adjustments to proce dures may be necessary to compensate for unique individual conditions Test all procedures duplicating actual field conditions PREHEAT TEMPERATURE FOR PLASMA CUT...

Страница 21: ...de buildup Replace the nozzle turn on the power and continue cutting If the Parts in Place circuit safety status indicator light continues to trip after cleaning the consum ables replace them with a n...

Страница 22: ...TABLE OF CONTENTS ACCESSORIES Accessories Section C Options Accessories C 2 Section C 1 Section C 1 PRO CUT 55 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC...

Страница 23: ...uching the workpiece S22151 Drag Cup The drag cup protects the torch by preventing the torch from touching the workpiece K1571 Series PCT 80 Torches come in 25 and 50 lengths in either hand held or me...

Страница 24: ...urn to Master TOC Return to Master TOC Section D 1 Section D 1 PRO CUT 55 TABLE OF CONTENTS MAINTENANCE Maintenance Section D Safety Precautions D 2 Input Filter Capacitor Discharge Procedure D 2 Rout...

Страница 25: ...wo capacitor terminals large hex head cap screws on the top and bottom of the Power Board shown in Figure D 1 6 Use electrically insulated gloves and insulated pli ers Hold the body of the resistor an...

Страница 26: ...and blocking the flow of air through the air tube inside Also check for kinks in the cable periodically and relieve any so as not to restrict the flow of air to the torch PERIODIC MAINTENANCE ELECTRI...

Страница 27: ...Machine Base 8 Auxiliary Transformer 9 Main Transformer Maintenance D 4 D 4 PRO CUT 55 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Retu...

Страница 28: ...ATION SECTION INPUT LINE SWITCH INPUT RECTIFIER FAN MOTORS A L E A D AUXILIARY TRANSFORMER OUTPUT CONTROL AIR PRESSURE SWITCH P R O T E C T O N I SIGNAL CR 1 DRIVE SIGNAL RELAY IGBT GATE SIGNALS R E A...

Страница 29: ...he auxiliary transformer develops the appropriate AC voltages to operate the cooling fans the control board and the plasma output board THEORY OF OPERATION E 2 E 2 PRO CUT 55 Return to Section TOC Ret...

Страница 30: ...deactivate the CR1 input relay The machine output will also be disabled THEORY OF OPERATION E 3 E 3 PRO CUT 55 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC R...

Страница 31: ...rough the main transformer primaries and the offset timing of the IGBT pairs induce an AC square wave output signal at the secondary of the main transformer The DC current flow through each primary wi...

Страница 32: ...swirl texture located inside the bottom of the nozzle increases the plenum air swirl strength and improves arc start reliability and parts in place verification Plasma arc initiation occurs as follows...

Страница 33: ...55 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 FIGURE E 6 CONTROL AND D...

Страница 34: ...is located on the output choke and the other on the power board IGBT heat sink Excessive temperatures may be caused by a lack of cooling air or by operating the machine beyond the duty cycle and outp...

Страница 35: ...source is applied to the gate terminal of the IGBT it is capable of conducting current A voltage supply connected to the drain terminal will allow the IGBT to conduct and supply current to circuit com...

Страница 36: ...time off time is 48 microseconds both IGBT groups off Since only 2 microseconds of the 50 microsecond time period is devoted to conducting the output power is minimized MAXIMUM OUTPUT By holding the...

Страница 37: ...NOTES E 10 E 10 PRO CUT 55 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 38: ...ower Board Resistance Test and Capacitor Voltage Test F 18 Output Power Board Resistance Test F 24 Torch Continuity and Solenoid Test F 28 Air Gas Solenoid Test F 32 T2 Auxiliary Transformer Test F 34...

Страница 39: ...SSIBLE AREAS OF MISADJUSTMENT S lists 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 duc...

Страница 40: ...pment Do not touch electrically hot parts 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 coul...

Страница 41: ...o fan no status indicator lights 1 Make sure that the input power switch is in the ON position 2 Check the input voltage at the machine Input voltage must match the rating plate and the reconnect pane...

Страница 42: ...Voltage Test 2 Perform the Input Rectifier Test 3 The control board may be faulty Replace 4 The primary power board may be faulty Replace The machine powers up properly but there is no response when t...

Страница 43: ...flow is not restricted 4 Make sure the air hose and screen are not clogged 1 Perform the Torch Continuity and Solenoid Test 2 The output board may be faulty Replace 3 The control board may be faulty R...

Страница 44: ...MS The pilot arc is normal but the arc will not transfer to the workpiece 1 Make sure the operating proce dure is correct for the process See the Operation section of this manual 2 Make sure the work...

Страница 45: ...e button and set the regulator to 70 psi 448 kPa Do not reset the air pres sure while the air is off not flow ing 1 The pressure switch S5 or associated leads may be faulty See the Wiring Diagram 2 Th...

Страница 46: ...Service Department for electrical troubleshooting assistance before you proceed Call 1 888 935 3877 PROBLEMS SYMPTOMS POSSIBLE AREAS OF MISADJUSTMENT S RECOMMENDED COURSE OF ACTION LED FUNCTION PROBL...

Страница 47: ...r Board Resistance Test Perform the Auxiliary Transformer Test Perform the Input Rectifier Test Are all LED s lit The microprocessor is faulty replace the control board Are all LED s off Perform the A...

Страница 48: ...NOTES F 11 F 11 PRO CUT 55 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 49: ...ase observe all safety notes and precautions detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the test repairs safely contact the Li...

Страница 50: ...resistor is not supplied with machine NEVER USE A SHORTING STRAP FOR THIS PROCEDURE 5 Locate the four capacitor terminals large hex head cap screws shown in Figure F 1 One pair is at the top and one...

Страница 51: ...cian or machine operator and will invalidate your factory warranty For your safety and to avoid electrical shock please observe all safety notes and precautions detailed throughout this manual If for...

Страница 52: ...EST PROCEDURE 1 Remove main input power to the machine 2 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 3 Locate the input rectifier D1 and lead loca tions See...

Страница 53: ...sure to recon nect leads 207 207A and 209 to the cor rect terminals and torque to 31 in lbs Apply a coating of Essex D 4 8 insulating com pound 8 If the input rectifier is faulty see the Input Rectifi...

Страница 54: ...NOTES F 17 F 17 PRO CUT 55 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: ...invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do not understan...

Страница 56: ...RY POWER BOARD WITH INPUT FILTER CAPACITORS CAPACITOR C2 TERMINALS CAPACITOR C1 TERMINALS PRO CUT POWER G3172 207 202 206 203 201 204 205 208 TEST PROCEDURE 1 Remove main input power to the Pro Cut 55...

Страница 57: ...an 100 ohms 205 203A Greater than 1000 ohms 203A 205 Less than 100 ohms 208 203A Greater than 1000 ohms 203A 208 Less than 100 ohms 206 208 Greater than 1000 ohms 208 206 Less than 100 ohms 206 205 Gr...

Страница 58: ...ower to the Pro Cut 55 2 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 3 Locate and familiarize yourself with the capacitor test locations on the primary powe...

Страница 59: ...revent output 7 If the test voltages do not meet the expect ed values as listed in Table F 3 the capaci tors or other components on the power board may be faulty Replace NOTE If the capacitor voltages...

Страница 60: ...NOTES F 23 F 23 PRO CUT 55 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 61: ...danger to the technician or machine operator and will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughou...

Страница 62: ...CATIONS TEST PROCEDURE 1 Remove input power to the Pro Cut 55 machine 2 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 3 Remove the torch assembly from the mac...

Страница 63: ...1 Less than to and 100 ohms Probe Terminal B11 associated trace Probe Terminal B11 Diode A1 Greater than to and 1000 ohms Probe J33 Pin4 associated trace Probe J33 Pin4 Diode A1 Less than to and 100 o...

Страница 64: ...NOTES F 27 F 27 PRO CUT 55 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 65: ...machine operator and will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any re...

Страница 66: ...ch assembly from the machine 3 Using the ohmmeter check the torch resis tances per Table F 5 NOTE Take the Pin test point measurements at the machine end of the torch assem bly See Figure F 5 FIGURE F...

Страница 67: ...0 ohm maximum Torch consumables Nozzle nozzle in place Pin 8 to Torch One pilot arc lead to 1 0 ohm maximum Torch consumables Nozzle nozzle in place Pin 1 to Pin 9 Torch trigger circuit 100K ohms min...

Страница 68: ...NOTES F 31 F 31 PRO CUT 55 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 69: ...e technician or machine operator and will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu...

Страница 70: ...pin 5 Normal resis tance is approximately 20 ohms If the resis tance is abnormal check the continuity zero or very low resistance of leads 366 and 361 between the solenoid and plug J31 See the Wiring...

Страница 71: ...d will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do not und...

Страница 72: ...move main input power to the Pro Cut 55 machine 2 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 3 Locate the auxiliary transformer just behind the input line...

Страница 73: ...ter TOC Return to Master TOC Return to Master TOC Return to Master TOC T2 AUXILIARY TRANSFORMER TEST continued TEST POINT TEST POINT EXPECTED VOLTAGE H1 1J22 H2 4J22 200 208VAC H1 1J22 H4 3J22 380 415...

Страница 74: ...NOTES F 37 F 37 PRO CUT 55 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 75: ...rator and will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do...

Страница 76: ...If conti nuity less than one ohm is not read check the leads from plug J31 to the torch cable receptacle Perform the Torch Continuity and Solenoid Test 5 If less than one ohm is read only when the to...

Страница 77: ...ilter Capacitor Discharge Procedure 11 Check the continuity of leads 344 and 312 between the output board and the control board See Figure F 9 the Simplified Trigger Circuit Diagram and Figure F 10 12...

Страница 78: ...his DC voltage is used to power the trigger circuit and solenoid driver circuits incorporated on the output board LED3 Green This light indicates that the air solenoid driver circuit is functioning Wh...

Страница 79: ...to power the circuitry on the control board LED3 Red This light indicates that 18 VAC is being supplied to the control board from the auxiliary transformer It also shows that the 18 VAC is being recti...

Страница 80: ...NOTES F 43 F 43 PRO CUT 55 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 81: ...avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do not understand the test procedures or are unable to perform the test...

Страница 82: ...esence of approximately 28 VDC on the output board a LED1 should be lit when 28 VDC is present See Figure F 13 See Output Board LED Definitions and Figure F 12 Low Voltage Circuit Diagram b To verify...

Страница 83: ...9 See Figure F 15 and Figure F 12 Low Voltage Circuit Diagram 10 If any of the DC supply voltages are incorrect or missing make certain the correct AC sup ply voltages are being applied to the P C boa...

Страница 84: ...C voltage is used to power the trigger circuit and solenoid driver circuits incorporated on the output board LED3 Green This light indicates that the air solenoid driver circuit is functioning When th...

Страница 85: ...DC This 15 VDC supply is used to power the circuitry on the control board LED2 Red This light indicates that the 5 5 VDC is present This voltage is derived from the 15 VDC supply The 5 5 VDC supply is...

Страница 86: ...NOTES F 49 F 49 PRO CUT 55 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 87: ...to the technician or machine operator and will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this...

Страница 88: ...put Filter Capacitor Discharge Procedure detailed earlier in this section 3 Using the 5 16 nut driver remove the four screws holding the front assembly to the top and base of the machine See Figure F...

Страница 89: ...the eight mounting pins and gently slide the P C board onto the mounting pins until the board snaps onto the pins 9 Replace the five molex type plugs in their respective receptacles Be certain they a...

Страница 90: ...NOTES F 53 F 53 PRO CUT 55 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 91: ...ger to the technician or machine operator and will invalidate your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout t...

Страница 92: ...the wraparound cover and perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 3 Using the 5 16 nut driver remove the four screws holding the front assembly to the t...

Страница 93: ...static free methods for handling printed circuit boards Failure to do so can result in permanent damage to the equipment 7 Depress the locking tab and remove the plug connector from the display board...

Страница 94: ...NOTES F 57 F 57 PRO CUT 55 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 95: ...te your factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do not understand the tes...

Страница 96: ...to Master TOC FIGURE F 21 OUTPUT POWER BOARD REMOVAL OUTPUT POWER BOARD OUTPUT POWER BOARD REMOVAL REPLACEMENT continued PROCEDURE 1 Remove input power to the Pro Cut 55 machine 2 Remove the case wrap...

Страница 97: ...X4 X2 and B21 from the output power board 5 Remove all plugs from the output power board 6 Remove leads X20 and X40 from the output power board 7 Using the phillips head screw driver remove the two s...

Страница 98: ...eat sink and pre torque the four socket head screws to 25 inch pounds 3 Finish tightening the four screws to 40 48 inch pounds 4 Replace the two phillips head screws previ ously removed 5 Replace lead...

Страница 99: ...our factory warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do not understand the test pr...

Страница 100: ...APACITORS PRIMARY POWER BOARD AND FILTER CAPACITOR REMOVAL AND REPLACEMENT continued REMOVAL PROCEDURE 1 Remove input power from the Pro Cut 55 machine 2 Remove the case wraparound and perform the Inp...

Страница 101: ...OWER BOARD AND FILTER CAPACITOR REMOVAL AND REPLACEMENT continued 7 Using the slot head screw driver remove the two mounting screws from the left side of the primary power board See Figure F 24 Take n...

Страница 102: ...with the correct capacitor polari ties 4 Assemble the four socket head screws and pre torque them to 25 inch pounds 5 Make certain the capacitors are lined up correctly so that when the capacitor bol...

Страница 103: ...y warranty For your safety and to avoid elec trical shock please observe all safety notes and precautions detailed throughout this manu al If for any reason you do not understand the test procedures o...

Страница 104: ...LACEMENT continued PROCEDURE 1 Remove input power to the Pro Cut 55 2 Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section 3 Locate the input rectifier and the leads...

Страница 105: ...ully remove the input rectifier bridge 8 When installing a new input rectifier apply a thin coating of Penetrox A 13 Heat Sink Compound Lincoln E2529 to the mating surfaces Torque the mounting cap scr...

Страница 106: ...RETEST AFTER REPAIR Should a machine under test be rejected for any reason requiring the removal of any mechanical part that could affect the machine s electrical characteristics or if any electrical...

Страница 107: ...NOTES F 70 F 70 PRO CUT 55 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 108: ...ematic L10722 G 3 Power P C Board Schematic L10616 G 4 Display P C Board Assembly L10721 1 G 5 Display Board M18920 G 6 Control Schematic G3327 G 7 Control P C Board Assembly G3328 1 G 8 Control P C B...

Страница 109: ...312 344 302 J5 501 502 503 505 506 507 J4 401 404 2 E D1 8 N 3 N 4 5 9 U 62 64 W 61 U J3 J32 J40 S3 PSI_SET S2 RESET 1 3 4 2 1 3 7 6 5 8 4 9 10 2 1 3 5 4 7 6 8 9 10 15 11 12 13 14 J40 212 214 213 215...

Страница 110: ...n to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G 3 PROCUT 55 SCHEMATIC PLASMA OUTPUT BOARD G 3 NOTE This diagram is for refere...

Страница 111: ...his 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 Maste...

Страница 112: ...C C C C C C J40 RA A c C C C C C C C c C C C C C C C c C C C C C C C c C C C C C C C c C C C C C C C c C C C C C C C c C C C C C C C c C C C C C C C L10721 1 c C C C B B b B B b B B b B B b DISPLAY 0...

Страница 113: ...rn to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G 6 PROCUT 55 SCHEMATIC DISPLAY PC BOARD G 6 NOTE This diagram is for referenc...

Страница 114: ...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 Mast...

Страница 115: ...DIODE D15 D16 D17 D18 D21 5 T12705 34 1N4936 DZ1 DZ2 2 T12702 19 1N4742A J1 1 S18248 4 HEADER J2 1 S18248 10 HEADER J3 1 S18248 16 HEADER J4 1 S18248 6 HEADER J5 1 S18248 8 HEADER LED1 LED2 LED3 3 T13...

Страница 116: ...nly Lincoln Electric discourages 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 boa...

Страница 117: ...ly Lincoln Electric discourages 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 boar...

Страница 118: ...ly Lincoln Electric discourages 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 boar...

Страница 119: ...W R18 R77 2 S19400 1821 1 82K 1 4W R19 1 S19400 2673 267K 1 4W R28 1 T10812 41 10K 1 2W TRIMMER R29 R30 R31 R32 R71 R72 8 T14648 12 1500 OHM 5 WATT RESISTOR R73 R74 R33 R38 R58 3 S19400 3321 3 32K 1 4...

Страница 120: ...nly Lincoln Electric discourages 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 boa...

Страница 121: ..._ ___________________________________________________________________________ ___________________________________________________________________________ ______________________________________________...

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