PCM-875A Plasmarc Mechanized Cutting System
Transcription
PCM-875A Plasmarc Mechanized Cutting System
F-15-753 November, 2002 Installation, Operation and Maintenance Manual for the PCM-875A Plasmarc Mechanized Cutting System Cutting Systems 411 South Ebenezer Road Florence, South Carolina, U.S.A. The equipment described in this manual is potentially hazardous. Use caution when installing, operating and maintaining this equipment. Purchaser is solely responsible for the safe operation and use of all products purchased, including compliance with OSHA and other government standards. ESAB Cutting Systems has no liability for personal injury or other damage arising out of the use of any product manufactured or sold be ESAB. See standard ESAB terms and conditions of sale for a specific statement of ESAB’s responsibilities and limitations on its liability. ESAB Cutting Systems first priority is total customer satisfaction. We constantly look for ways to improve our products, service and documentation. As a result, we make enhancements and/or design changes as required. ESAB makes every possible effort to ensure our documentation is current. We cannot guarantee that each piece of documentation received by our customers reflects the latest design enhancements. Therefore, the information contained in this document is subject to change without notice. This manual is ESAB Part Number F15753 This manual is for the convenience and use of the cutting machine purchaser. It is not a contract or other obligation on the part of ESAB Cutting Systems. © ESAB Cutting Systems, 2002 Printed in U.S.A. PCM-875A System Table of Contents Section 1 Safety Page 1-(_) 1.1 Introduction ................................................................................................... 1 1.2 Safety Notations And Symbols ....................................................................... 2 1.3 General Safety Information ............................................................................. 3-4 1.4 Installation Precautions................................................................................... 4 1.5 Electrical Grounding ....................................................................................... 5 1.6 Operating A Plasma Cutting Machine ............................................................. 5-8 1.7 Service Precautions........................................................................................ 9-10 1.8 Safety References .......................................................................................... 11-16 1.8.1 National Standards................................................................................. 11 1.8.2 International Standards........................................................................... 12-16 Section 2 Description Page 2-(_) 2.1 General........................................................................................................... 1 2.2 PCM-875A Power Console ............................................................................ 1 2.2.1 Technical Specifications – PCM-875A..................................................... 1 2.2.2 Dimensions and Weight.......................................................................... 2 2.3 Remote Arc Starter (RAS2)............................................................................. 3 2.3.1 Technical Specifications ......................................................................... 3 2.3.2 Dimensions and Weight.......................................................................... 3 2.4 PT-20AMX Torch ........................................................................................... 4 2.4.1 Technical Specifications ......................................................................... 4 2.4.2 Dimensions and Weight.......................................................................... 5 2.4.3 Torch Spare Parts Kit ............................................................................. 6 i PCM-875A System Table of Contents Section 3 Installation Page 3-(_) 3.1 General .......................................................................................................... 1 3.2 Installation of power console ........................................................................... 1 3.2.1 Requirements ......................................................................................... 1 3.2.2 Location ................................................................................................. 2 3.2.3 Inspection before installation ................................................................... 2 3.2.4 Primary Electrical Input Connections........................................................ 3 3.2.5 Connection of Plasma Console to CNC Interface ..................................... 4 3.2.6 Secondary (Output) Connection .............................................................. 5-8 3.3 Connection of Remote Arc Starter (RAS2) ....................................................... 9 3.3.1 Mounting ............................................................................................... 9 3.3.2 Connecting Service Lines (Input).............................................................. 10 3.3.3 Setting Spark Gap .................................................................................. 11 3.3.4 RAS2 Output Connections ...................................................................... 12 3.3.5 Termination of Torch Shield Braid............................................................ 13-14 3.4 Installing Front-end torch Parts ........................................................................ 15-17 3.5 Interconnecting Diagram ................................................................................. 18-19 Section 4 Operation Page 4-(_) 4.1 PCM-875A Console Operation -- General ....................................................... 1 4.2 Console Controls............................................................................................ 2-3 4.3 RAS2 ............................................................................................................. 3 4.4 PT-20AMX Plasma Torch................................................................................ 4 4.5 Cut Quality ..................................................................................................... 5 4.5.1 Introduction ............................................................................................ 5 4.5.2 Cut Angle ............................................................................................... 6 4.5.3 Cut Flatness ........................................................................................... 7 4.5.4 Surface Finish (Roughness) ..................................................................... 8 4.5.5 Dross ..................................................................................................... 9-10 4.5.6 Dimensional Accuracy............................................................................. 10-11 4.6 Process Data................................................................................................... 11-23 ii PCM-875A System Table of Contents Section 5 Maintenance Page 5-(_) 5.1 PCM-875A Console ....................................................................................... 1 5.1.1 General .................................................................................................. 1 5.1.2 Inspection and Cleaning ......................................................................... 2-3 5.1.3 Flow Switch 4 5.2 RAS2 (Remote Arc Starter)............................................................................. 5 5.2.1 General .................................................................................................. 5 5.2.2 Spark Gap Procedure............................................................................. 5 5.3 PT-20AMX Plasmarc Torch ............................................................................ 6 5.3.1 General .................................................................................................. 6 5.3.2 Dirt or Contamination ............................................................................. 7 5.3.3 Loose Consumables............................................................................... 7 5.3.4 Damage Caused by Loose Parts or Overheating ..................................... 8 5.3.5 Consumables- Remove and Replace ..................................................... 8-10 5.3.6 Measuring Torch Gas Flows ................................................................... 10 5.3.7 Removal and Replacement of the Torch Body......................................... 11 iii PCM-875A System Table of Contents Section 6 Troubleshooting Page 6-(_) 6.1 Troubleshooting PCM-875A Plasmarc System ................................................ 1 6.2 Console ......................................................................................................... 2-8 6.2.1 Power Light (PL1) does not come on....................................................... 2 6.2.2 No Air Flow............................................................................................. 6.2.3 Power Light is on but nothing happens when signal is given to fire with no fault light ......................................................................................... 6.2.4 Fault light activates when torch fire signal is given .................................... 2 6.2.5 Air is on but nothing happens when torch fire signal is given .................... 6 6.2.6 High Frequency and Pilot Arc are on but no main arc transfer .................. 7 6.2.7 Poor Cutting Performance....................................................................... 7 6.2.8 Air does not shut off................................................................................ 7 6.2.9 Main arc difficult to start .......................................................................... 8 6.3 Reference Voltage Checks.............................................................................. 9 6.4 PT-20AMX Torch Troubleshooting10 .............................................................. 10-11 3 4-5 6.4.1 Insufficient Penetration ............................................................................ 10 6.4.2 Main Arc Extinguishes............................................................................. 10 6.4.3 Dross Formation ..................................................................................... 10 6.4.4 Double Arcing......................................................................................... 11 6.4.5 Uneven Arc............................................................................................. 11 6.4.6 Unstable Cutting Conditions.................................................................... 11 6.4.7 Main Arc Does Not Strike ........................................................................ 11 6.4.8 Poor Consumable Life............................................................................. 11 6.5 230V Power Console Electrical Drawings ........................................................ 12-17 6.5.1 Schematic .............................................................................................. 12-13 6.5.2 Wiring Diagrams ..................................................................................... 14-17 6.6 400V Power Console Electrical Drawings ........................................................ 18-23 6.6.1 Schematic .............................................................................................. 18-19 6.6.2 Wiring Diagrams ..................................................................................... 20-23 6.7 Remote Arc Starter Schematic........................................................................ 24 Section 7 Replacement Parts Page 7-(_) 7.1 General .......................................................................................................... 1 7.2 Ordering ......................................................................................................... 1 7.3 PCM875A Power Console – 230V .................................................................. 2-9 7.4 PCM-875A Power Console – 400V ................................................................. 10-18 7.5 Remote Arc Starter......................................................................................... 19-21 7.6 PT-20AMX Plasmarc Cutting Torch................................................................. 22-25 Customer/Technical Information Back Manual Cover iv SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY 1.1 Introduction The process of cutting metals with plasma equipment provides industry with a valuable and versatile tool. ESAB cutting machines are designed to provide both operation safety and efficiency. However, as with any machine tool, sensible attention to operating procedures, precautions, and safe practices is necessary to achieve a full measure of usefulness. Whether an individual is involved with operation, servicing, or as an observer, compliance with established precautions and safe practices must be accomplished. Failure to observe certain precautions could result in serious personnel injury or severe equipment damage. The following precautions are general guidelines applicable when working with cutting machines. More explicit precautions pertaining to the basic machine and accessories are found in the instruction literature. For a wide scope of safety information on the field of cutting and welding apparatus, obtain and read the publications listed in the Recommended References. 1-1 SECTION 1 PCM-875A Mechanized Plasma Cutting System 1.2 Safety Notations And Symbols ! The following words and symbols are used throughout this manual. They indicate different levels of required safety involvement. ALERT or ATTENTION. Your safety is involved or potential equipment failure exists. Used with other symbols and information. ! DANGER Used to call attention to immediate hazards which, if not avoided, will result in serious personal injury or loss of life. ! WARNING Used to call attention to potential hazards that could result in personal injury or loss of life. ! CAUTION 1-2 SAFETY Used to call attention to hazards that could result in minor personal injury or equipment damage. CAUTION Used to call attention to minor hazards to equipment. NOTICE Used to call attention to important installation, operation or maintenance information not directly related to safety hazards. SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY 1.3 General Safety Information NOTICE ! WARNING ! WARNING Some subjects listed are not related specifically to the type of equipment covered in this manual. However, the safety principles still apply. They are offered as a reminder that this equipment or related apparatus should be operated with alertness and understanding. Safety of operators, technicians, maintenance workers and observers should not be taken for granted. Machinery may start automatically. Equipment positioning mechanized plasma torch moves in various directions and speeds. · Moving machinery can crush. · Only qualified personnel should operate or service this power source. · Keep all personnel, materials, and equipment not involved in production process clear of entire system area. · Fence off entire work cell to prevent personnel from passing through area or standing in the working envelope of the equipment. · Post appropriate WARNING signs at every work cell entrance. · Follow lockout procedure before servicing any equipment. Failure to follow operating instructions could result in death or serious injury. Read and understand this operator’s manual before using machine. · Read entire procedure before operating or performing any system maintenance. · Special attention must be given to all hazard warnings that provide essential information regarding personnel safety and/or possible equipment damage. · All safety precautions relevant to electrical equipment and process operations must be strictly observed by all having system responsibility or access. · Read all safety publications made available by your company. 1-3 SECTION 1 PCM-875A Mechanized Plasma Cutting System ! WARNING SAFETY Failure to follow safety warning label instructions could result in death or serious injury. Read and understand all safety warning labels on machine. Refer to operator’s manual for additional safety information. 1.4 Installation Precautions ! WARNING Improperly Installed Equipment Can Cause Injury Or Death. Follow these guidelines while installing machine: 1-4 · Contact your ESAB representative before installation. He can suggest certain precautions regarding piping installation and machine lifting, etc. to ensure maximum security. · Never attempt any machine modifications or apparatus additions without first consulting a qualified ESAB representative. · Observe machine clearance requirements for proper operation and personnel safety. · Always have qualified personnel perform installation, troubleshooting and maintenance of this equipment. · Provide a wall mounted disconnect switch with proper fuse sizes close to the power supply. SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY 1.5 Electrical Grounding Electrical grounding is imperative for proper machine operation and SAFETY. Refer to this manual’s Installation section for detailed grounding instructions. ! WARNING Electric shock hazard. Improper grounding can cause severe injury or death. Machine must be properly grounded before put into service. 1.6 Operating A Plasma Cutting Machine ! WARNING ! WARNING Flying debris and loud noise hazards. · Hot spatter can burn and injure eyes. Wear goggles to protect eyes from burns and flying debris generated during operation. · Chipped slag may be hot and fly far. Bystanders should also wear goggles and safety glasses. · Noise from plasma arc can damage hearing. Wear correct ear protection when cutting above water. Burn hazard. Hot metal can burn. · Do not touch metal plate or parts immediately after cutting. Allow metal time to cool, or douse with water. · Do not touch plasma torch immediately after cutting. Allow torch time to cool. 1-5 SECTION 1 PCM-875A Mechanized Plasma Cutting System ! WARNING SAFETY Hazardous voltages. Electric shock can kill. · Do NOT touch plasma torch, cutting table or cable connections during plasma cutting process. · Always turn power off to plasma power supplies before touching or servicing plasma torch. · Always turn power off to plasma power supplies before servicing any system component. · Do not touch live electrical parts. · Keep all panels and covers in place when machine is connected to power source. · Wear insulating gloves, shoes and clothing to insulate yourself from workpiece and electrical ground. · Keep gloves, shoes, clothing, work area, and equipment dry. · ! WARNING Replace worn or damaged cables. Fume hazard. Fumes and gases generated by the plasma cutting process can be hazardous to your health. · Do NOT breathe fumes. · Do not operate plasma torch without fume removal system operating properly. · Use additional ventilation to remove fumes if necessary. · Use approved respirator if ventilation is not adequate. · Provide positive mechanical ventilation when cutting galvanized steel, stainless steel, copper, zinc, beryllium, or cadmium. Do not breathe these fumes. · Do not operate near degreasing and spraying operations. Heat or arc rays can react with chlorinated hydrocarbon vapors to form phosgene, a highly toxic gas and other irritant gases. 1-6 SECTION 1 SAFETY PCM-875A Mechanized Plasma Cutting System Radiation hazard. ! WARNING Arc rays can injure eyes and burn skin. · Wear correct eye and body protection. · Wear dark safety glasses or goggles with side shields. Refer to following chart for recommended lens shades for plasma cutting: Arc Current Lens Shade Up to 100 Amps Shade No. 8 100-200 AmpsShade No. 10 200-400 AmpsShade No. 12 Over 400 Amps Shade No. 14 · Replace glasses/goggles when lenses are pitted or broken · Warn others in area not to look directly at the arc unless wearing appropriate safety glasses. · Prepare cutting area to reduce reflection and transmission of ultraviolet light. CAUTION § Use special paint on walls to absorb UV light. § Install protective screens or curtains to reduce ultraviolet transmission. Do Not Use this Torch Under Water. The PT-20AMX is designed to be a dry cutting process. Cutting under water may result in: · reduced consumable life · degradation of cut quality · possible damaged torch Cutting under water may result in poor cutting performance. Water vapor created when hot material or sparks contact liquid may cause arcing inside torch. When cutting on a water table, reduce the water level to provide maximum clearance between water and material. 1-7 SECTION 1 PCM-875A Mechanized Plasma Cutting System ! WARNING SAFETY Burn Hazard. Heat, spatter, and sparks cause fire and burns. · Do not cut near combustible material. · Do not have on your person any combustibles (e.g. butane lighter). · Pilot arc can cause burns. Keep torch nozzle away from yourself and others when activating plasma process. · Wear correct eye and body protection. · Wear gauntlet gloves, safety shoes and hat. · Wear flame-retardant clothing covering all exposed areas. · Wear cuffless trousers to prevent entry of sparks and slag. · Have fire extinguishing equipment available for use. ! WARNING Explosion hazard. · Certain molten aluminum-lithium (Al-Li) alloys can cause explosions when plasma cut OVER water. § § § These alloys should only be dry cut on a dry table. DO NOT dry cut over water. Contact your aluminum supplier for additional safety information regarding hazards associated with these alloys. · Do not cut in atmospheres containing explosive dust or vapors. · Do not carry any combustibles on your person (e.g. butane lighter) · Do not cut containers that have held combustibles. 1-8 SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY 1.7 Service Precautions ! WARNING Hazardous voltages. Electric shock can kill. · Do NOT touch plasma torch, cutting table or cable connections during plasma cutting process. · Always turn power off to plasma power supplies before touching or servicing plasma torch. · Always turn power off to plasma power supplies before removing covers or panels to service any system component. · Do not touch live electrical parts. · Keep all panels and covers in place when machine is connected to power source. · Keep gloves, shoes, clothing, work area, and equipment dry. · Inspect power and ground leads cables for wear or cracking. Replace worn or damaged cables. Do not use if damaged. ! WARNING · Never bypass safety interlocks. · Follow lock-out procedures. Hot Torch can cause skin burns. Allow torch to cool before servicing. 1-9 SECTION 1 PCM-875A Mechanized Plasma Cutting System ! DANGER SAFETY Danger of Electric Shock. Torch may be electrically active. Turn off Plasma Power Console before servicing torch. CAUTION Establish and adhere to preventive maintenance. A composite program can be established from recommended schedules. Avoid leaving test equipment or hand tools on machine. Severe electrical or mechanical damage could occur to equipment or machine. ! CAUTION Extreme caution should be used when probing circuitry with an oscilloscope or voltmeter. Integrated circuits are susceptible to over voltage damage. Power off before using test probes to prevent accidental shorting of components. All circuit boards securely seated in sockets, all cables properly connected, all cabinets closed and locked, all guards and covers replaced before power is turned on. 1-10 SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY 1.8 Safety References -- Regulations, Standards, Guidelines The following recognized publications on safety in welding and cutting operations are recommended. These publications have been prepared to protect persons from injury or illness and to protect property from damage, which could result from unsafe practices. Although some of these publications are not related specifically to this type of industrial cutting apparatus, the principles of safety apply equally. 1.8.1 USA · “Precautions and Safe Practices in Welding and Cutting with Oxygen-Fuel Gas Equipment,” Form 2035. ESAB Cutting Systems. · “Precautions and Safe Practices for Electric Welding and Cutting,” Form 52-529. ESAB Cutting Systems. · “Safety in Welding and Cutting” - ANSI Z 49.1, American Welding Society, 2501 NW 7th Street, Miami, Florida, 33125. · “Recommended Safe Practices for Shielded Gases for Welding and Plasma Arc Cutting” - AWS C5.10-94, American Welding Society. · “Recommended Practices for Plasma Arc Welding” - AWS C5.1, American Welding Society. · “Recommended Practices for Arc Cutting” - AWS C5.2, American Welding Society. · “Safe Practices” - AWS SP, American Welding Society. · “Standard for Fire Protection in Use of Cutting and Welding Procedures” - NFPA 51B, National Fire Protection Association, 60 Batterymarch Street, Boston, Massachusetts, 02110. · “Standard for Installation and Operation of Oxygen - Fuel Gas Systems for Welding and Cutting” - NFPA 51, National Fire Protection Association. · “Safety Precautions for Oxygen, Nitrogen, Argon, Helium, Carbon Dioxide, Hydrogen, and Acetylene,” Form 3499. ESAB Cutting Systems. Obtainable through your ESAB representative or local distributor. · "Design and Installation of Oxygen Piping Systems," Form 5110. ESAB Cutting Systems. · “Precautions for Safe Handling of Compressed Gases in Cylinders”, CGA Standard P-1, Compressed Gas Association. Literature applicable to safe practices in welding and cutting with gaseous materials is also available from the Compressed Gas Association, Inc., 500 Fifth Ave., New York, NY 10036. 1-11 SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY 1.8.2 International Accident Prevention VBG- Unfallverhütungsvorshriften General Provisions VBG 1 Allgemeine Unfallverhütungsvorshriften Electrical Equipment and operating Equipment VBG 4 Elektrische Anlagen Welding, Cutting and related working methods VBG 15 Schweißen un Schneiden un verwandte Verfahren Shot Blasting Works VBG 48 Strahlarbeiten Gases VBG 61 Gase Oxygen VBG 62 Sauerstoff Operating liquid jet cutting machines VBG 87 Arbeiten mit Flüssigkeitsstrahlem Laser beams, accident prevention and Electrotechnology VBG 93 Laserstrahlung, Unfallverhütungs-vorschriften für Feinmechnik und Elektrotechnik Noise VBG 121 Lärm 1-12 SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY VDE Regulations VDE - Vorschriften VDE 0100 Erection of power installations with normal voltages up to 1000 volts Bestimmungen für das Errichten von Stakstromanlagen mit Nennspannungen bis 1000 Volt Electrical equipment of industrial machines VDE0113 Elektrishe Ausrüstung von Industriemaschinen VDE 0837 VDE 083750 Radiation safety of laser products; users guide (DIN EN 60825) Strahlungssicherheit von Lasereinrichtungen und Benutzungsrichtlinen (DIN EN 60825) Specification for laser guards Anforderung an Lasershcutzwänden TRAC Technical Rules for Acetylene and Carbide Stores TRAC- Techische Regein für Azetylenanlagen und Calciumcargidlager Acetylene lines TRAC-204 Azetylenleitungen Acetylene cylinder battery systems TRAC-206 Azetylenflaschenbatterieanlagen Safety devices TRAC-207 Sicherheitseinrichtungen TRG Technical Rules for Pressure gases TRG – Technische Regein für Druckgase General regulations for pressure gases TRG 100 Allgemeine Bestimmungen für Druckgase Pressure gases TRG 101 Druckgase Technical gas mixtures TRG 102 Technishe Gasgemische Pressure gases; alterative use of compressed gas tanks TRG 104 Druckgase, wahlweise Verwendung von Druckgasbehältem 1-13 SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY TRGS – Technische Richtlinien für Gefahrstoffe TRGS-102 Techn. Richtkonzentration (TRK) für gefährliche Stoffe TRGS-402 Ermittlung u. Beurteilung der Konzentration gefährlicher Stoffe in der Luft im Arbeitsbereich TRGS-900 Grenzwerte in der Luft am Arbeitsplatz (Luftgrenzwerte) TA TA-Luft un TA-Lärm (BLm SchV) DIN Standards DIN-Normen DIN 2310 Part 1 Teil 1 DIN 2310 Part 2 Teil 2 DIN 2310 Part 4 Teil 4 DIN 2310 Part 5 Teil 5 DIN 2310 Part 6 Teil 6 DIN 4844 Part 1 Teil 1 1-14 Thermal cutting; terminology and nomenclature Thermsiches Schneiden, Allgemeine Begriffe und Bennungen Thermal cutting; determination of quality of cut faces Thermsiches Schneiden, Ermittein der Güte von Schnittflächen Thermal cutting; arc plasma cutting; process principles, quality, dimensional tolerances Thermsiches Schneiden, Plasmaschneiden, Verfahrensgrundlagen, Güte, Maßtoleranzen Thermal cutting; laser beam cutting of metallic materials; process principles Laserstrahlschneiden von metallischen Werkstoffen, Verfahrensgrundlagen, Güte, Maßtoleranzen Thermal cutting; Classification, processes Einführung, Verfahren Safety markings (DIN EN 7287) Sicherheitskennzeichen (Siehe EN 7287) SECTION 1 PCM-875A Mechanized Plasma Cutting System SAFETY DIN EN ISO Harmonized Standards DIN EN ISO-Harmonisierte Normen DIN EN 292/1 and 2 Safety of machinery Sicherheit von Maschinen, Geräten und Anlagen Hoses for welding, cutting and allied processes DIN EN 559 DIN EN 560 Schläuche für Schweißen, Schneiden und verwandte Verfahren Hose connections and hose couplings for equipment for welding, cutting and allied processes Schlauchanschlüsse und Schlauchverbindungen für Geräte zum Schweißen, Schneiden und verwandte Verfahren Gas welding equipment hose couplings DIN EN 561 Gasschweißgeräte, Kupplungen DIN EN 626-1 DIN EN 848-1 DIN EN 1829 DIN EN 9013 DIN EN 12584 DIN EN 12626 DIN EN 28206 DIN EN 31252 Safety of machines, reduction of risks to health Sichereit von Maschinen, Reduzierung des Gesundheitsrisikos Single spindle vertical milling machines Fräsmaschine für einseitige Bearbeitung mit drehendem Werkzeug High pressure water jet machines Hochdruckwasserstrahlschneidmaschine Thermal cutting, oxygen cutting, process principles, dimensional tolerances Thermisches Schneiden, Autogenes Brennschneiden, Verfahrensgrundlagen, Güte, Maßtoleranzen Imperfections in oxy/fuel flame cuts, laser beam cuts and plasma Unregeimäßigkeiten an Brennschnitten, Laserstrahl- und Plasmaschnitten Laser processing machines Laserbearbeitungsmaschinen Acceptance testing for oxygen cutting machines Abnahmeprüfung für Brennschneidmaschinen Laser Equipment Lasergeräte 1-15 SECTION 1 PCM-875A Mechanized Plasma Cutting System DIN EN 31553 SAFETY Laser and laser related equipment Laser und Laseranlagen DIN EN 60204-1 Electrical equipment of machines DIN EN 60825 Radiation safety of laser products Elekrische Ausrüstung von Maschinen Strahlensicherheit von Laseranlagen Arrangement of protection devices DIN EN 999 Anordnung von Schutzeinrichtungen VDI Guidelines VDI 2906 Quality of cut faces on metallic workpieces; abrasive water jet cutting and arc plasma cutting Schnittflächenqualität beim Schneiden von Werkstücken aus Metall, Abrasiv- Wasserstrahischneiden und Plasmastrahischneiden Room air; Technical systems for welding workshops VDI 2084 Raumluft techn. Anlagen für Schweißwerkstätten 1-16 SECTION 2 Description PCM-875A Mechanized Plasma Cutting System 2.1 General The PCM-875A Mechanized Plasma Cutting System is a compact 60 ampere package consisting of plasma power console, remote arc starter, and PT-20AMX plasma torch. Simple bulkhead connections allow easy system assembly. Connect to input power and a source of clean, dry, compressed air (5,18 to 5,87 bar) and you can begin cutting up to 13 mm thick material. 2.2 PCM-875A Power Console There are 2 power console options available: 230 V 50 Hz, 1 or 3 phase P/N 0558003356 400 V 50 Hz, 3 phase P/N 0558003357 2.2.1 Technical Specifications: PCM-875A Options 400V 50Hz, 3 phase P/N 0558003357 230V 50Hz, 3 Phase P/N 0558003356 1 phase 3 phase 60% Duty Cycle 60 A at 120 VDC 100 % Duty Cycle 50 A at 120 VDC Rated Output Output Current Range 10 to 60 A/phase Open Circuit Voltage 275 VDC Rated Primary Input at 7,2 kW Maximum Output Power, 60 A at 120 VDC Power Factor at 60 Amperes Output 55/49 A (230V, 1 phase) 26/24 A per phase (230V, 3 phase) 13 A/phase 74% (230 V, 1 phase) 90% (230 V, 3 phase) 92% (400 V, 3 phase) Efficiency at 60 Amperes Output 90% typical Current Capacity 60 A DCSP Air Requirements 153,4 l/minute at 5,2 bars Power Cord Length Provided 1,8m 3,1m 2-1 SECTION 2 PCM-875A Mechanized Plasma Cutting System 2.2.2 Dimensions and Weight: PCM-875A Power Console 465 mm 516 mm 275 mm Weight = 39,5 kg 2-2 Description SECTION 2 PCM-875A Mechanized Plasma Cutting System Description 2.3 Remote Arc Starter (RAS-2) The remote arc starter (RAS-2) is placed inline between power console and torch. The RAS is the source of high frequency energy used to start the plasma cutting process. RAS-2 with 15,2 m leads P/N 0558003601 RAS-2 with 30,4 m leads P/N 0558003602 Technical Specifications Input: 110 VAC, 50/60 Hz. Control power provided by PCM-875A console. Spark Gap: 1mm Dimensions and Weight 123,8mm 184,2mm 374mm Weight = 3,4kg 2-3 SECTION 2 PCM-875A Mechanized Plasma Cutting System Description 2.4 PT-20AMX The patented PT-20AMX is a 100 amp capacity, pilot-arc mechanized torch available in 3 different torch lead length packages. The torch uses clean, dry air as the cut gas for cutting carbon steel, aluminum, or stainless steel. ! WARNING PT-20AMX Torch with 1,2 m lead P/N 0558002632 PT-20AMX Torch with 5,7 m lead P/N 0558002633 PT-20AMX Torch with 7,6 m lead P/N 0558003381 DO NOT use oxygen with this torch! A hazardous fire may result. 2.4.1 Technical Specifications Type: Air Cooled, single gas at 9,9 kl/hr Rating: 100 Amperes at 100% Duty Cycle Gas Purity: Air: Needs to be clean, dry and free of all particulate matter. Nitrogen: 99.995% clean Gs Type: Air, nitrogen 2-4 SECTION 2 PCM-875A Mechanized Plasma Cutting System Description 2.4.2 Dimensions 34,9 mm 435 mm 2-5 SECTION 2 PCM-875A Mechanized Plasma Cutting System Description 2.4.3 Torch Spare Part Kit PT-20AMX Torch Spare Parts Kit is available for maintaining the PT-20AMX torch with minimum downtime. P/N 0558002319 Description Heat Shield (70/100 A) Cutting Nozzle (50 A) Cutting Nozzle (70 A) Electrode 50Hz Electrode Insulator Electrode Holder Assembly Baffle Tube Pilot Arc Adaptor O-ring Lubricant (1 oz.) Seat/Baffle Wrench 1/16: Hex-Key Wrench NOTICE NOTICE P/Number Quantity 21326 21330 23129 0558001617 21373 21332 21374 19497 488157 17672 21375 93750006 3 5 5 5 1 1 1 1 5 1 1 1 The description of the heat shield (P/N 21326) listed above indicates a range of 70 to 100 amperes. Testing has proven satisfactory results when used at 60 amps and lower. The 50A cutting nozzle can be used at 50 amperes and lower. The 70A cutting nozzle can be used at 50 to 70 cutting amperes. 2-6 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.1 General Proper installation is important for satisfactory and trouble free operation. Follow these instructions carefully. ! WARNING Failure to follow these directions carefully may lead to injury or death. Read this entire manual before proceeding. Damage to property or equipment may occur. 3.2 Installation of the PCM-875A Power Console 3.2.1 Equipment Required A source of clean dry air at 153,4 liters/minute at 5,2 to 5,9 bar. The maximum inlet pressure of the air filter-regulator is 10,4 bar and should not be exceeded. 3-1 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.2.2 Location Adequate ventilation is necessary to provide proper cooling of the PCM-875A. Exposure to dirt, dust and excessive heat should be minimized. Console CAUTION There should be a minimum of 305 mm clearance between the power console and any wall or other obstruction for free air movement. Restricting airflow into the power console through the louvers will cause overheating. Do not install any type of air filtering device on to the power console cooling air passages. Warranty will be voided if such a device is used. 3.2.3 Inspection of Power Console Before installation A. Remove equipment from the shipping containers. B. Remove all packing material and inspect for evidence of concealed damage, which may not have been initially apparent. Notify the shipping carrier of any damage at once. C. Check container for any loose parts prior to disposing of shipping materials. D. Check air louvers and all other openings to ensure that any obstruction is removed. 3-2 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.2.4 Primary electrical Input Connections ! WARNING ! CAUTION Electric Shock Can Kill! Ensure all power is off by opening the line (wall) disconnect switch and power cord is disconnected before attempting to make any connections inside the power console. Ensure that the power source is properly configured for your input power supply. DO NOT connect a power console configured for 230V to a 460V input power. Damage to machine will occur. The PCM-875A Power Console is equipped with a 3 m 4 conductor power cable for 3- phase connection. If single-phase 230V is required, tape back red wire on the input power cable. A line (wall) disconnect switch with fuses or circuit breakers should be provided at the main power panel. Input Requirements Volts Phase Amps 230 230 400 1 3 3 49 24 13 Input and Ground Conductor 2 (mm ) 16 16 6 Fuse Size (A) 80 50 25 3-3 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation Failure to connect chassis to an approved electrical ground may result in electrical shock, severe burns or death. ! WARNING The chassis must be connected to an approved electrical ground. The PCM-875A power console is internally wired for connecting to an external power source. Console Power Lead 3.2.5 Connection of Plasma Console To CNC Interface The CNC interface (TB4) is mounted on the front left corner of the console base. 1 2 3 4 5 6 7 Arc On Signal Relay Closing Start Signal Relay Closing 20:1 (+) Voltage Divider Not Used · Arc On Signal – This signal originates in the plasma console. It is a normally open contact, which closes on main arc transfer. Used to activate machine motion and arc voltage control. · Start Signal – Signal is derived from CNC machine. It is a normally open contact, which closes starting the plasma sequence. The system is off when this contact closure is removed. · 20:1 (+) Voltage Divider – The voltage divider provides a signal ouput, which is proportional to the cutting voltage. Signal reduction is 20 to 1 and controls whether the torch is raised or lowered in reference to the work piece. This is referred to torch to work distance. This distance is adjustable by varying arc voltage reference voltage. · 3-4 Not Used SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.2.6 Secondary (Output) Connections to Power Console ! WARNING Electric Shock Can Kill! Ensure all power is off by opening the line (wall) disconnect switch and power cord is disconnected before attempting to make any connections inside the power console. Remove outside cover Insert power cable, pilot arc, and air hose through power cable bushing. Power Cable Bushing TB1 3-5 SECTION 3 PCM-875A Mechanized Plasma Cutting System 1 2 Pilot Arc Cut Gas 3 1 2 3 NOTICE 3-6 Installation Arc Current Bolt pilot arc cable ring connection to the copper terminal. Connect air hose to air/power connector (left hand threads). Connect power cable to air/power connector using #10 screw The console cover does not have to be removed to make the three connections above. Remove access panel if replacing cables or checking connections. SECTION 3 PCM-875A Mechanized Plasma Cutting System Insert115VAC Pilot Arc Cable Installation Insert 115VAC RAS cable through strain relief located in the lower right corner of the front panel. Rout 115VAC RAS cable along inside edge in notches in insulating material to TB1. TB1 115VAC RAS Cable 2 conductor 115VAC cable routed through notch 3-7 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation Remove connection for internal arc start from TB1 TB1 Plug terminal connectors into 2 available lugs on TB1. ! CAUTION Cable Terminals to TB1 should be insulated to prevent possible damage due to internal arcing in the power console. The above illustration shows the terminals un-insulated for clarity of wire positions. Replace cover if next step is not required. 3-8 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.3 Connecting the Remote Arc Starter 3.3.1 Mounting RAS2 Mounting location of RAS unit is restricted by the length of torch leads, 1,2 m -- 5,4 m or 7,6 m. 228,6mm 203,2mm 12,7mm 13,5mm 55,9mm 82,6mm 8mm 3-9 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.3.2 Connecting Service Lines to Remote Arc Starter 2 Remove end covers on RAS2 box. 115 VAC Arc Start Cable Connector Pilot Arc Lug Air Connection Power Cable Lug · Connect arc start cable to RAS2 box. · Connect pilot arc cable to pilot arc lug using #10 screw and nut with lock washers. · Connect power cable to power cable lug using ¼” screw with washers and nut. · Connect air hose fitting (left hand threads). Note that this hose has the same fittings on both ends and orientation does not matter. Arc Start Cable 3-10 Pilot Arc Cable Power Cable Air Hose SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.3.3 Setting the Spark Gap in the RAS2 Factory set to 1mm. Adjustment procedure: 1. Loosen screw “a” using a 1/8” (0.125”) internal hex wrench. 2. Insert 1mm feeler gage between the tungsten electrodes. 3. Slide electrodes till slight pressure is felt on the gage. 4. Tighten locking screws on spark gap assembly. 1 mm ”a” 3-11 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.3.4 RAS2 Output Connections to Torch · Pilot Arc – Connect pilot arc cable in torch bundle to pilot arc output lug using #10 screw, lock washers and nut. · Torch – left hand threads connect the torch gas (air) and plasma arc current. (Cable inside gas hose conducts the plasma cutting current) Torch Lead Pilot Arc Connector 3-12 Torch Lead Voltage/Gas Hose SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.3.5 Terminating Shield Braid at RAS2 1. Insert Braid and hose bundle through RAS cover hole. Insert bundle 2. Flare braid by bending it back at 90 degrees about 25 mm from the end. Flair Braid 3-13 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3. Insert ground plate over torch leads. Insert Ground Plate 4. Fasten ground plate with 4 screws inserted from the outside. Trim braid strands if desired. Fasten Ground Plate 3-14 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3.4.1 Installing Torch Front End Parts ! WARNING Make sure power switch on console is in OFF position and primary input power is de-energized. 1. The seat comes assembled to the front end of the torch. IF the seat becomes damaged, the torch body must be replaced. DO NOT attempt to remove the seat from torch body. Seat Wrench 21375 Electrode Holder Assembly Baffle Tube 2. Electrode holder assembly (21332) includes the baffle tube (21374). If baffle tube becomes damaged, it can be replaced by un-threading the damaged tube out of the holder. Use small hex end of the wrench (21375) in hex broach on the tube. Tighten tube securely but do not overtighten. 3-15 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 3. Install the electrode insulator (21373) onto electrode holder assembly (21332) and then thread electrode (21150) onto the electrode holder assembly. Assemble electrode firmly by hand. Do not use wrenches or pliers. These three parts combined are the electrode assembly. 21332 21373 21150 4. Install nozzle onto the electrode assembly by inserting small shoulder on electrode insulator into nozzle’s rear opening. Place nozzle and electrode assembly into the heat shield as shown in page 6. If front end of the torch is facing down as normal in a setup, the nozzle and electrode assembly can be stacked in the heat shield and then assembled to the torch. Be sure to use proper heat shield and nozzle combination as noted in page 18. O-ring (488157) 5. Apply a thin film of lubricant (17672) to O-ring (488157). 17672 3-16 SECTION 3 PCM-875A Mechanized Plasma Cutting System Installation 6.Tighten heat shield fully to hold the parts in firm contact with each other and to the torch head. “Fully” means at least 5mm rotation after electrode seat contacts electrode holder. 7. After retainer/heat shield is tightened, try to rotate the nozzle with your finger tips. If it rotates, the sealing of components is not tight enough and will likely leak gas. NOTICE ! CAUTION See “Section 6 – Maintenance” for torch lead installation or replacement. IMPORTANT: See Maintenance section. Follow all instructions in the booklet packed with your unit. DO NOT install or attempt to operate this torch without following these instructions. 3-17 SECTION 3 Installation PCM-875A Mechanized Plasma Cutting System 3.5 Interconnecting Diagram 19 20 1 4 2 5 21 3 11 8 6 7 10 12 9 13 6 7 14 5 22 15 16 17 18 3-18 SECTION 3 PCM-875A Mechanized Plasma Cutting System 1 Air Supply 2 Wall Disconnect Switch (Grounded) 3 PCM-875A Power Supply Cable 4 Work Cable (Negative) 5 Pilot Arc Cable 6 Gas Connection 7 Power Supply Cable 8 115 V High Frequency Start Cable 9 RAS Input Bulkhead 10 Remote Arc Starter 11 RAS Output Bulkhead 12 Pilot Arc Cable 13 Power/Gas Hose 14 Torch Lead Bundle Shield Ground 15 PT-20 AMX Plasmarc Torch 16 Work Cable Clamp 17 Work Piece 18 Earth Ground 19 ATAS Start/Stop CSR 20 CSR Cable 21 Height Control Cable (Voltage Divider) 22 Voltage Divider (Height Control) Installation 3-19 SECTION 3 PCM-875A Mechanized Plasma Cutting System This page intentionally left blank. 3-20 Installation SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.1 PCM-875A Console Operation -- General ! WARNING Electric Shock Can Kill! · Do not operate the console with the cover removed. · Do not apply power to the unit while holding or carrying the console. · Do not touch the torch while console power switch is on. ! WARNING · Plasma Arc Emits Hazardous UV and Visible Radiation. · Damage to skin and eyes is possible. · Do not ever look directly at a plasma arc. Blindness could result. · Wear Safety Approved eye protection. · Comply to all local and national regulations for safety equipment. ! WARNING Noise Levels May Exceed Safe Limits. Sparks and Slag May Be Hazardous. · Wear Safety Approved Hearing Protection. · CAUTION Wear Safety Approved Eye Protection. Possible Damage to Console from Sparks and Slag. Position PCM-875A at least 3 meters form the Cutting Area. 4-1 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.2 PCM-875A Plasma Console Controls Power Switch -- Rear Panel · Located on the rear panel. · On Position – Front panel green pilot light will glow indication control circuit is energized and cooling fan will run. · Power Switch Off Position – No Power to the control circuit. White Pilot Light Output Current Control – Front Panel · Adjustable from 10 to 60 Amperes Current Output Control Air Test Switch – Front Panel · Test Position Air filter-regulator can be adjusted to 2 desired pressure 4,6 to 5,3 kgf/cm (65 to 75 PSI). Allow a few minutes for air to flow to remove an accumulated condensation. · Operate Position Place the toggle switch in this position for normal operation. Air Test Switch 4-2 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation Fault Light – Operations are stopped. Will illuminate amber under the following conditions: · Light mostly ON but will blink off 1/10 of a second every second. Indicates airflow is low. · Light is mostly Off but will blink on for 1/10 of a second every second. Indicates over temperature and duty cycle has been exceeded. Allow power console to cool before returning to operation. · Light will blink off and on 5 times a second. Indicates the input voltage is outside the plus or minus 15% range of input rating. · Light will be on continuously. Indicates input current has been exceeded. Over Current. Fault Light NOTICE All fault lights will remain on for a minimum of 10 seconds. If fault is resolved, all will reset automatically except for over current. To clear over current, power must be shut off for 5 seconds and turned back on. 4.3 RAS Operation The RAS is a self-contained unit and requires no operator intervention to function. 4-3 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.4 PT-20AMX Plasma Torch. ! WARNING Electric Shock Can Kill! Plasma incorporates high voltages at dangerous amperage. Do not touch the; · Plasma torch · Torch lead · RAS · RAS supply lines · Console while power is applied to console. ! WARNING ! CAUTION 4-4 Electric shock Can Kill! Do not service torch or otherwise touch the plasma torch unless the power source has been disconnected or turned off. Hot Torch May Burn Skin. Allow torch to cool before servicing. SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.5 Cut Quality 4.5.1 Introduction Causes affecting cut quality are interdependent. Changing one variable affects all others. Determining a solution may be difficult. The following guide offers possible solutions to undesirable cutting results. To begin select the most prominent condition: § 4.5.2 Cut angle, negative or positive § 4.5.3 Cut not flat, rounded or undercut § 4.5.4 Surface roughness § 4.5.5 Dross § 4.5.6 Dimensional Accuracy § Process Data Usually the recommended cutting parameters will give optimal cut quality. Occasionally conditions may vary and slight adjustments will be required. If so: · Make small incremental adjustments when making corrections. · Adjust arc voltage in one volt increments, up or down as required. Adjust cutting speed 5% or less as required, until conditions improve. NOTICE Before attempting ANY corrections, check cutting variables with the factory recommended settings/consumable part numbers listed in Process Data. 4-5 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.5.2 Cut Angle Negative Cut Angle Top dimension is greater than the bottom. Part Drop · Misaligned torch · Bent or warped material · Worn or damaged consumables · Standoff low (arc voltage) · Cutting speed slow (machine travel rate) Part Positive Cut Angle Part Top dimension is less than the bottom dimension. · Misaligned torch · Bent or warped material · Worn or damaged consumables · High standoff high (arc voltage) · Cutting speed fast · Current high or low. (See process data for recommended current level for specific nozzles). Wrong secondary gas flow. · Drop 4-6 Part SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.5.3 Cut Flatness Top And Bottom Rounded Condition usually occurs when material is 0.25" thick (6,4mm) or less. · Drop High current for given material thickness (See process data for proper settings). Part Top Edge Undercut Standoff low (arc voltage) Drop Part 4-7 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.5.4 Surface Finish Process Induced Roughness Cut face is consistently rough and may be confined to one axis. · Top View Worn or damaged consumables Cut Face Machine Induced Roughness Can be difficult to distinguish from process induced roughness and is often confined to one axis. Roughness is inconsistent. · Or Machine Induced Roughness Process Induced Roughness 4-8 · Dirty rails, wheels and/or drive rack/pinion. (Refer to maintenance section in machine owner’s manual). Carriage wheel adjustment SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.5.5 Dross Dross is a by-product of the cutting process. It is the undesirable material that remains attached to the part. In most cases, dross can be reduced or eliminated with proper torch and cutting parameter setup. Refer to Process Data. Cut Face Lag Lines High Speed Dross Roll Over Material weld or rollover on bottom surface along kerf. Difficult to remove. May require grinding or chipping. “S” shaped lag lines. · Standoff high (arc voltage) · Cutting speed fast Side View Cut Face Lag Lines Slow Speed Dross Globules Forms as globules on bottom along kerf. Removes easily. · Cutting speed slow Side View 4-9 SECTION 4 Side View PCM-875A Mechanized Plasma Cutting System Operation Splatter Top Dross Appears as splatter on top of material. Usually removes easily. · Cutting speed fast · Standoff high (arc voltage). Cut Face Intermittent Dross Appears on top or bottom along kerf. Non-continuous. Can appear as any kind of dross · Possible worn consumables Other Factors Affecting Dross: · · · · 4-10 Material temperature Heavy mill scale or rust High carbon alloys Gas Purity SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation 4.5.6 Dimensional Accuracy Generally, using the slowest possible speed (within approved levels) will optimize part accuracy. Most material thickness overlap for different voltages. Select consumables to allow a lower arc voltage and slower cutting speed. 4.6 Process Data NOTICE Recommended cutting speed and arc voltage will give optimal cutting performance. Small incremental adjustments may be needed due to material quality, material temperature and specific alloy. The operator should remember that all cutting variables are interdependent. Changing one setting affects all others and cut quality could deteriorate. Always start at the recommended settings. Before attempting ANY corrections, check cutting variables with the factory recommended settings/ consumable part numbers listed in the process data. 4-11 SECTION 4 Operation PCM-875A Mechanized Plasma Cutting System PT-20AMX Plasmarc Torch Material: Amperes: Gas: Mild Steel 40 Air Lock Ring P/N 57N70 Handle with Sleeve P/N 05508003419 Torch Body P/N 21359 Electrode Holder Assembly P/N 21332 Electrode Insulator P/N 21373 Electrode 50Hz P/N 0558001617 Nozzle 50A P/N 21330 Heat Shield – Blue P/N 21326 Note: Heat shield rated at 70 to 100A is used for this application 4-12 SECTION 4 PCM-875A Mechanized Plasma Cutting System PT-20AMX Operation Amperes Mild Steel 40 Process Data Material Thickness mm 2,0 3,0 Bar 5 5 mm 3,0 3,0 Arc Voltage (Stand-off) 110 110 3810 2540 1,1 1,1 Air Pressure Height Readings Initial Height Travel Speed mm per minute Kerf Width Millimeters 4-13 SECTION 4 Operation PCM-875A Mechanized Plasma Cutting System PT-20AMX Plasmarc Torch Material: Amperes: Gas: Mild Steel 50 Air Lock Ring P/N 57N70 Handle with Sleeve P/N 05508003419 Torch Body P/N 21359 Electrode Holder Assembly P/N 21332 Electrode Insulator P/N 21373 Electrode 50Hz P/N 0558001617 Nozzle 50A P/N 21330 Heat Shield – Blue P/N 21326 Note: Heat shield rated at 70 to 100A is used for this application 4-14 SECTION 4 PCM-875A Mechanized Plasma Cutting System PT-20AMX Operation Amperes Mild Steel 50 Process Data Material Thickness mm 5,0 6,0 10,0 13,0 Bar 6,0 6,0 6,0 6,0 mm 3,0 5,0 6,0 8,0 Arc Voltage (Stand-off) 110 120 130 150 2540 1651 1016 457 1,6 1,9 3,2 4,0 Air Pressure Height Readings Initial Height Travel Speed mm per minute Kerf Width Millimeters 4-15 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation Material: Aluminum 40 Air PT-20AMX Plasmarc Torch Amperes: Gas: Lock Ring P/N 57N70 Handle with Sleeve P/N 05508003419 Torch Body P/N 21359 Electrode Holder Assembly P/N 21332 Electrode Insulator P/N 21373 Electrode 50Hz P/N 0558001617 Nozzle 50A P/N 21330 Heat Shield – Blue P/N 21326 Note: Heat shield rated at 70 to 100A is used for this application 4-16 SECTION 4 PCM-875A Mechanized Plasma Cutting System PT-20AMX Operation Amperes Aluminum 40 Process Data Material Thickness mm 2,0 3,0 Bar 5 5 mm 3,0 3,0 Arc Voltage (Stand-off) 110 110 3810 2667 1,57 1,57 Air Pressure Height Readings Initial Height Travel Speed mm per minute Kerf Width Millimeters 4-17 SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation Material: Aluminum 50 Air PT-20AMX Plasmarc Torch Amperes: Gas: Lock Ring P/N 57N70 Handle with Sleeve P/N 05508003419 Torch Body P/N 21359 Electrode Holder Assembly P/N 21332 Electrode Insulator P/N 21373 Electrode 50Hz P/N 0558001617 Nozzle 50A P/N 21330 Heat Shield – Blue P/N 21326 Note: Heat shield rated at 70 to 100A is used for this application 4-18 SECTION 4 PCM-875A Mechanized Plasma Cutting System PT-20AMX Operation Amperes Aluminum 50 Process Data Material Thickness mm 5,0 6,0 10,0 13,0 Bar 6,0 6,0 6,0 6,0 mm 3,0 5,0 6,0 8,0 Arc Voltage (Stand-off) 110 120 130 150 2286 1905 762 203 Not Available 3,2 4,7 4,7 Air Pressure Height Readings Initial Height Travel Speed mm per minute Kerf Width Millimeters 4-19 SECTION 4 Operation PCM-875A Mechanized Plasma Cutting System PT-20AMX Plasmarc Torch Material: Stainless Steel Amperes: Gas: 40 Air Lock Ring P/N 57N70 Handle with Sleeve P/N 05508003419 Torch Body P/N 21359 Electrode Holder Assembly P/N 21332 Electrode Insulator P/N 21373 Electrode 50Hz P/N 0558001617 Nozzle 50A P/N 21330 Heat Shield – Blue P/N 21326 Note: Heat shield rated at 70 to 100A is used for this application 4-20 SECTION 4 PCM-875A Mechanized Plasma Cutting System PT-20AMX Operation Amperes Stainless Steel 40 Process Data Material Thickness mm 2,0 3,0 Bar 5 5 mm 3,0 3,0 Arc Voltage (Stand-off) 110 110 3302 1905 Not Available 1,6 Air Pressure Height Readings Initial Height Travel Speed mm per minute Kerf Width Millimeters 4-21 SECTION 4 Operation PCM-875A Mechanized Plasma Cutting System PT-20AMX Plasmarc Torch Material: Amperes: Gas: Stainless Steel 50 Air Lock Ring P/N 57N70 Handle with Sleeve P/N 05508003419 Torch Body P/N 21359 Electrode Holder Assembly P/N 21332 Electrode Insulator P/N 21373 Electrode 50Hz P/N 0558001617 Nozzle 50A P/N 21330 Heat Shield – Blue P/N 21326 Note: Heat shield rated at 70 to 100A is used for this application 4-22 SECTION 4 PCM-875A Mechanized Plasma Cutting System PT-20AMX Operation Amperes Stainless Steel 50 Process Data Material Thickness mm 5,0 6,0 10,0 13,0 Bar 6,0 6,0 6,0 6,0 mm 3,0 5,0 6,0 8,0 Arc Voltage (Stand-off) 110 120 130 150 1270 762 203 152 Not available 3,2 4,7 4,7 Air Pressure Height Readings Initial Height Travel Speed mm per minute Kerf Width Millimeters 4-23 SECTION 4 PCM-875A Mechanized Plasma Cutting System This page intentionally left blank. 4-24 Operation SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.1 PCM-875A Console 5.1.1 General ! CAUTION Stop work immediately if this equipment does not operate properly. Equipment damage or personal injury may result. ! CAUTION Do not permit untrained persons to inspect, clean, or repair this equipment. Maintenance must be performed by specially trained personnel. NOTICE ! WARNING Use of replacement parts other than ESAB replacement parts may void warranty. Electric Shock Can Kill! Disconnect wall switch before inspection and maintenance of the power console. 5-1 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.1.2 Inspection and Cleaning F F Frequent inspection and cleaning of the PCM 875A system is recommended for safe and proper operation. F A. Check work cable for secure connection to workpiece. F E F B. Check safety earth ground at workpiece and at power console chassis. C. Check heat torch heat shield. Replace if damaged. D. Check torch electrode and cutting nozzle for wear at least once per 8 hours operation. E. Ensure cable and hoses are not damaged or kinked. F. Ensure all plugs, fittings and ground connections are tight. A C D ! WARNING 5-2 B Wear safety eye protection when using compressed air. Serious eye injury may result. SECTION 5 PCM-875A Plasmarc Cutting System CAUTION Maintenance Water and oil may accumulate in compressed air lines. Direct the first air blast away from equipment to avoid possible damage. G. With all input power disconnected, wearing proper eye and face protection, blow out the inside of the console using low-pressure dry compressed air. H. Periodically drain water from the filter beneath the air-filter regulator. 5-3 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.1.3 Flow Switch The Flow Switch (P/N 951202) may need to be cleaned if excessive contamination is found in the air supply. A A 2 View A-A 1 1 Flow Switch Location 2 Solenoid Location Piston Plug Note: The flow switch can be disassembled and cleaned without extraction from the power supply. 1) Turn Off power supply 2) Remove piston plug 3) Remove the spring. Use care when handling spring to prevent distortion. Spring 4) Remove the piston. Piston 5) Clean all parts with warm water and a mild detergent. Allow parts to dry thoroughly before reassembly. 6) Reassemble switch in reverse order. Flow Switch Body 5-4 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.2. Remote Arc Starter 5.2.1 General Check input and output bulkhead connections for tightness. 5.2.2 Spark Gap Factory set to 1mm. Adjustment procedure: 1. Loosen screw “a” using a 1/8” (0.125”) internal hex wrench. 2. Insert 1mm feeler gage between the tungsten electrodes. 3. Slide electrodes till slight pressure is felt on the gage. 4. Tighten locking screws on spark gap assembly. 1 mm ”a” 5-5 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.3 PT-20AMX Plasmarc Torch ! WARNING Before any maintenance is attempted on this torch, make sure the POWER SWITCH on the console is in the OFF position and the PRIMARY INPUT POWER is DE-ENERGIZED. 5.3.1 General 1. Periodically check heat shield, electrode holder assembly, electrode nozzle seat, and electrode insulator. Replace if worn or damaged. 2. Apply a thin film of lubricant 17672 (supplied in spare parts kit) to O-ring. Check O-ring for damage whenever shield is removed. Replace if necessary. 3. Power and pilot arc cables should be inspected periodically. If cuts through protective sheath or if gas leaks are noted, replace damaged component. 5-6 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.3.2 Dirt or Contamination Dirt or other contamination in the torch and loose consumable parts can cause premature failure of the PT-20AM Torch through internal arcing. To avoid this, users are instructed to do the following: 1. Ensure that clean, dry, or oil-free air is being used. 2. Avoid excessive use of the silicone o-ring grease used to lubricate the torch o-ring. A thin film is sufficient. 3. Wipe the torch body insulator clean with a cloth before installing each fresh set of consumables. The ability of the insulator to resist arc tracking over its surface is reduced when dirt or other contamination is allowed to collect there. 5.3.3 Loose Consumables Tests have shown that with proper use of the torch within rated operating conditions (especially arc current and gas flow rate), the torch consumable parts do not become loose if they are firmly installed in the first place. 1. Tighten heat shield fully at each consumable change or inspection. “Fully” means at least 5 mm of rotation after electrode seat contacts electrode holder. NOTE: trying to rotate the portion of the nozzle extending outside heat shield can check consumable tightness. 2. Check consumable tightness at beginning of each work shift, even if everything was working normally at the end of the previous shift. 3. Ensure that the torch electrode seat and electrode holder are clean and free of dust or dirt Debris may prevent mating surfaces from having solid contact. 5-7 SECTION 5 PCM-875A Plasmarc Cutting System CAUTION Maintenance The torch requires good electrical contact between the electrode seat and electrode holder. If good contact is not maintained, then the resulting potential difference causes internal arcing and possible torch damage. 5.3.4 Damage Caused by Loose Parts and Torch Overheating. Electrode Insulator (21373) Arc tracking indicates loose parts. Make sure heat shield is tightened fully, at least 5mm of rotation after electrode seat contacts electrode holder. Check tightness again after a few minutes of use. Parts damaged by arcing will cause destruction of torch. Parts damaged by arcing must be replaced. Deformation at this edge indicates torch overheating. Check gas pressure, gas flow rate and current setting. Deformation leads to loose parts and internal arcing. Do not operate torch with a deformed insulator. 5.3.5 Consumables- Remove and Replace 1. Bring torch to a position where it is easily accessed by machine operator, in its normal vertical position and at least 6 inches above the workpiece or the edge of the water table. ! WARNING Make sure that the power source has been turned off and that the power cable has been unplugged at the wall receptacle before proceeding. 2. Unscrew the heat shield and lower it away from the torch, allowing nozzle and electrode assembly to remain with shield. 5-8 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 3. Remove the nozzle and electrode assembly from the shield and inspect for wear. The nozzle orifice should be round at both the entrance and the exit. If the nozzle orifice is worn in an oval shape or shows other signs of damage at either end, it should be replaced. The inside of the nozzle may have light gray deposits from the electrode. These may be removed with steel wool but care must be taken to remove all traces of the steel wool afterward. If the electrode has a pit that is more than 1.5mm deep at its center, replace it. Grasp the electrode holder with the fingers using the two flats and grasp the electrode between the thumb and finger of the other hand and twist. 1,5 mm Inspect electrode insulator and electrode holder assembly for signs of damage such as arc tracking or cracking and replace them if any are found. Insure that the baffle tube is securely threaded into the electrode holder, but do not over tighten. Use the small hex end of the plastic wrench in the spare parts kit. After installing the electrode insulator onto the electrode holder assembly, install electrode by reversing the procedure used to remove it. Note that firm tightening of the electrode by hand is sufficient. The use of tools such as wrenches or pliers is not required or recommended. 4. Inspect heat shield for signs of damage or wear. The gas holes inside shield should not be blocked by debris, and there should be no signs of arcing anywhere inside the shield. The outer insulating jacket of the shield should not be severely charred or eroded. Replace the heat shield if any of the above damage is found. . 5-9 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5. Inspect the o-ring on the torch. If it shows signs of wear or damage, replace it. If it is dry, lubricate it with a thin film of lubricant supplied with spare parts kit Inspect o-ring of torch 6. Install the nozzle and the electrode assembly into heat shield and thread heat shield onto torch. The shield should be tightened fully to insure good electrical contact for electrode and nozzle. "Fully" means at least 3/16 inch of rotation after electrode seat contacts electrode holder. 5.3.6 Measuring Torch Gas Flows Check gas flow if suspected of causing poor cutting performance. Use Plasma Torch Flow Measuring Kit. (P/N 19765)The kit includes a hand held rotameter (flowmeter) that indicates the gas flow rate exiting the torch. The kit also includes a set of instructions that should be followed exactly to insure safe and accurate use of the rotameter. Total air flow rate in the PT-20AMX should be 325cfh minimum with any nozzle at 75 psi. Flow Measuring Kit -- P/N 19765 5-10 SECTION 5 PCM-875A Plasmarc Cutting System Maintenance 5.3.7 Removal and Replacement of the Torch Body ! WARNING Make sure that the power source has been turned off and that the power cable has been unplugged at the wall receptacle before proceeding. PT-20AMX Torch 1. Cut and remove the shrink wrap at the back end of the torch handle. Unscrew the handle from the torch body and slide it back onto the torch cable assembly in order to expose the torch connections. 2. Remove the electrical tape that secures the short piece of vinyl tubing on the pilot arc cable. Slide the tubing away from the torch and onto the pilot arc cable to expose the pilot arc connector. 3. Use the 1/16" Allen Wrench supplied in the spare parts kit to loosen the pilot arc connector set screw closest to the torch body, being careful not to totally remove the screw. Slip the torch’s pilot arc lead out of the connector. 4. Unscrew the power cable fitting from the torch’s power lead using a 7/16" open-end wrench and remove the torch body. 5. Connect the pilot arc cable and the power cable to the new torch body’s pilot arc lead and power lead by reversing the steps taken to disconnect them. Tighten the pilot arc connector set screw fitting firmly but do not overtighten. Torque the power fitting to 20 lb. in. 6. Slide the vinyl tubing forward to cover the pilot arc connector and secure in place with electrical tape. 7. Slide the handle forward and thread it firmly onto the torch body. 8. Slide the new piece of shrink tube over the torch handle and shrink in place over the handle’s end and the cable sheath. 5-11 SECTION 5 PCM-875A Plasmarc Cutting System This page intentionally left blank 5-12 Maintenance SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.1 Troubleshooting PCM-875A Plasmarc System ! WARNING Electric Shock Can Kill! Ensure that all primary power to the machine has been externally disconnected. Open the line disconnect switch or circuit breaker before inspection, maintenance or repair inside power console. Match the problem with the conditions below. If problem is not listed, · shut off input power, · open unit by removing cover · Visual inspection of all components and wiring · Check for loose terminal connections · Burned wiring or other components · Bulged or leaking capacitors · Any other signs of damage or discoloration. 6-1 SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.2 Troubleshooting guide for PCM-875A Plasmarc System 6.2.1 Power Light (PL1) does not come on · Visually inspect the machine for damage. · Check if the cooling fan is running. If not running, check the following: § § Check if machine input power is still connected. Measure input power at the receptacle. If not present, then check the wall disconnect switch and it’s fuses. § Check fuse (F1). If it is: § Check input circuit breaker (CB1). § If cooling fan is running, measure voltage between pins P2-11 and P2-14 of control board (should be 115VAC). If no voltage, replace transformer T2. § If voltage is present, power light may be burned out. The problem is internal if above items are ok. Send unit to Authorized Repair Station. 6.2.2 No air flow · Check air inlet supply. Unit requires 9,2 m/h at 4,48 bar. 3 · Check air hose and connections. Tighten if leaking. · Does air flow when “Air Test” switch is in test position? § If not, check torch consumables, replace if necessary. If above items are OK, the problem is internal. Return to authorized repair station for service. 6-2 SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.2.3 The Power light is on, but nothing happens when the torch is signaled to fire. Fault light does not activate. NOTE: Unplug high frequency connection before attempting to work on this problem. · Check the Pilot Arc fuse (F2) located on the rear panel. An open fuse will indicate a short in the torch. If the fuse is all right, then check the following: § With the machine power on, depress the torch switch. On the control board the LED 1 should be lit as long as the switch is depressed. If not then check: § Turn power off to the machine. Unplug Control board. Put an ohmmeter across P5-1 and P5-2 to take resistance reading. Depress torch switch. Meter should read a short. If not, then one of the following is not working properly: § Torch switch or the leads. Unplug the torch switch leads at the machine. Put a meter across the two plug pins. Should read a short when the torch switch is depressed. If not, then either broken switch leads or malfunctioning switch. § Check T2 transformer secondary voltages at the plugs P1 and P2. Refer to system schematic. Replace the transformer if the correct secondary voltages are not present. If everything above checks out all right, then the PCB1 Control Board should be replaced. 6-3 SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.2.4 Fault light activates when torch is signaled to fire The Fault circuit is used to monitor conditions necessary for the safe operation of the PCM-875. The fault light will glow amber under the following conditions and operations will come to a complete stop: · High/Low line voltage. The Fault Light will rapidly blink on and off (5 times per second). This indicates that the input voltage is outside the “+” or “-” 15% safe operating range rating. · Flow fault - The fault light will be mostly on but will blink off for 1/10th of a second every second. This indicates that the air flow is low. 6-4 § Check the air pressure at the machine regulator. It should be adjusted to 65 psig. If no air pressure, check the air at the supply point. Also, check for any obstructions in the air hose. § Air flow may be blocked at the torch tip. Check the torch consumables. Also check for any obstructions in the torch leads. § NOTE: If above items check OK , the problem is internal. send unit to an Authorized Repair Station for repair. § Put the ‘Air Check’ switch to On position. Air should flow through torch. If not, then the flow switch may be stuck due to oil in the air. Clean air flow switch per supplier’s instructions or replace switch. To check if the flow switch is open, put voltmeter leads between P1-12 and P1-1. It should read about 12 VDC. When the flow switch closes, the voltage will drop to zero volts. § Air Check switch may also be malfunctioning if the air is flowing continuously or putting in the On position does not turn air on. SECTION 6 Fault light activates (continued) PCM-875A Plasmarc System Troubleshooting · Over Temperature. The fault light will be mostly off but will blink on for 1/10 of a second, every second. This generally indicates that the duty cycle has been exceeded. Allow the power source to cool before returning to operate. § Thermal switch may be open. It will open if the temperature at the IGBT base reaches 94oC. With the machine power off, check the continuity between P1-1 and P1-2 of the control board. If the switch is OK, then the ohmmeter should read a direct short. If not then it should read open. § If the switch is malfunctioning, replace it. Clean the surface of the heat sink before installing the switch. · Over Current. The fault light will be on continuously. This indicates that the input current to the main transformer has exceeded preset limits. § To check if the output is shorted, measure the resistance by putting the ohmmeter leads (make sure to disconnect HI Frequency leads):”+” of the meter to Torch “+” output terminal and Work “-” lead of the meter to the “-” output terminal. Reading should be about 2 K Ohms. Reverse the voltmeter leads, the resistance reading should be less than 1.5 K Ohms. If the resistance reading is different than above, check the torch, the output bridge and Filter Board (PCB-5). 6-5 SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.2.5 Air is On but nothing happens when torch is signaled to fire. · Check pilot arc fuse located on rear panel. If it is open, nothing will happen when torch switch is depressed. · Check torch. Make sure heat shield is very tight. · Check to assure high frequency is present at torch. If not, then listen for high frequency at high frequency generator. It is located on bottom/right side of the unit. High frequency gap is set to .040". Disconnect HI FREQUENCY leads. Check for 115 volt supply to high frequency unit between P2-12 & P2-13 of control board with torch switch closed. · With HI FREQUENCY leads disconnected, measure open circuit voltage. It should be 275 VDC between “Work” and “Torch” terminals. If it is not present then any one of the following may not be working properly: § Check the operation of the Thermal Switch. See D.3.a. above. § Check Air Check switch operation. It might be stuck in On position. Pilot arc will not initiate if this switch is in the ON position. (safety reasons) § Check air flow switch. There may be internal short. See D.2.c above. § Measure voltage across C1 or C2 capacitor. It should be as follows: approx. 325 VDC for the 208/230 volt unit. approx. 280 VDC to 325 VDC for 400 volt unit If not, one of following could be malfunctioning: 6-6 § Check the capacitors C1 and C2 for any damage. § Check input bridge/SCR Module (IBR) This can be checked without taking it out of the circuit using an volt/ohmeter. Replace it if found malfunctioning. Follow bridge installation instructions. § Check Inrush current resistor, R10 and SCR1. Both are located on the input bridge heat sink. Replace it if malfunctioning. § IGBTs (2 on 230 V, and 1 on the 400 V units) may be blown. See IGBT installation procedure. Before replacing IGBTs, make sure to check the zener diodes and pico fuses on the IGBT driver boards. SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.2.6 High Frequency and Pilot Arc are on but Main Arc does not transfer. · Make sure work clamp is connected to work material. · Check the torch. Replace consumables if necessary. · Make sure the current setting potentiometer is set above 10 amps. If it is, set below 10 amps, then HI FREQUENCY will go on and off at 5 sec intervals. 6.2.7 Poor Cutting Performance. · Check air supply regulator . It should be adjusted to 65-75 psig. · The air supplied to the torch should be free of oil and water. · Make sure the consumables in the torch are acceptable. · Check open circuit voltage. · Check the output. Use a calibrated current probe capable of measuring 100 amps in the presence of high frequency. 6.2.8 Air does not shut off. · Check air test, the gas solenoid valve is energized when the switch is in the “on” position. · Does air flow stop when the torch switch is unplugged? If yes, check and repair the torch. If not, send unit to an Authorized Repair Station for repair. · Check voltage to solenoid coil, if present when torch switch is unplugged, replace PCB1. If voltage is “0”, replace solenoid valve. 6-7 SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.2.9 Main arc is difficult to start. · The most common reason is worn or missing consumables. Check and replace if necessary. · Input air must be clean and dry. · Input air pressure must be between 65 - 75 psig. · Torch connections must be tight. · Work cable and clamp must be in good condition and must make a good electrical connection to the material to be cut. · If above items check OK , the problem is internal. Send unit to an Authorized Repair Station for repair. · Missing or weak pilot arc. Check pilot arc fuse, open circuit voltage, pilot arc resistors and pilot arc wiring. · Inoperative starter board (PCB-5). · Check Spark gap in RAS unit. 1mm is desired gap. If gap is to large, spark will be weak or nonexistent. 6-8 SECTION 6 6.3 Troubleshooting PCM-875A Plasmarc System Reference Voltage Checks A. Control Board Assembly (PCB1) LED’s LED-1 - Torch Switch LED-2 - High Frequency LED-3 - Gas Solenoid Valve Voltage Test Points Tests are made with power on - no arc. Disable High Frequency by disconnecting blue wire with black sleeve TP-0 TP-1 TP-2 TP-3 TP-4 - Ground +15 vdc +12 vdc -12 vdc +5 vdc TP-9 frequency = 16 KHz TP-10 frequency = 16 KHz IGBT’s driving signal - switching IGBT’s driving signal - switching 62 µsec 13 vdc 0 -13 vdc 5 msec IGBT Gating Signal For 208/230 VAC input, the IGBT off time is 3msec. For 400/460/575 VAC input, the IGBT off time is 6msec. 6-9 SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.4 PT-20AMX Torch Troubleshooting Common Cutting Problems Listed below are common cutting problems followed by the probable cause of each. If problems are determined to be caused by the PCM-875, refer to the maintenance section of this manual. If the problem is not corrected after referring to the maintenance section, contact your ESAB distributor. 6.4.1 Insufficient Penetration · Current too low. · Cutting speed too fast. · Damaged cutting nozzle. · Improper air pressure. · Low air flow rate. 6.4.2 Main Arc Extinguishes · Cutting speed too slow. · Worn electrode. 6.4.3 Dross Formation. (In some materials and thicknesses, it may be impossible to get dross-free cuts.) · Current too low. · Cutting speed too fast or too slow. · Improper air pressure. · Faulty nozzle or electrode. · 6-10 Low air flow rate. SECTION 6 PCM-875A Plasmarc System Troubleshooting 6.4.4 Double Arcing · .Damaged Nozzle Orifice. · Low air pressure. · Damaged cutting nozzle. · Loose cutting nozzle. · Heavy spatter accumulation on nozzle. · Damaged cutting nozzle or worn electrode. 6.4.5 Uneven Arc. 6.4.6 Unstable Cutting Conditions. · Incorrect cutting speed. · Loose cable or hose connections. · Electrode and/or cutting nozzle in poor condition. 6.4.7 Main Arc Does Not Strike · Worn electrode. · Loose connections. · Worn cable not attached 6.4.8 Poor Consumable Life · Improper gas pressure. · Contaminated air supply. · Low air flow rate 6-11 SECTION 6 Troubleshooting PCM-875A Plasmarc System 6.5 230V Power Console Electrical Drawings EMC FILTER WHT H2 F1 275V 2 AC2 T S D5 D4 R D2 (-) 12V X2 V V 1800UF,450VDC MAX P2-8 2 3 P6-13 P6-6 P6-12 P6-5 V V E2 2 C1 12V 24V V P1-1 P1-2 1 E2 2 V V V V V P4-2 P1-7 P1-8 C1 3 E2 2 C2E1 R11 C16 RED BLK 8 ,300W 1uf 600V X3 230V 8 R12 C7 H1 3 39K,2W (+) 230V R5 2 1 1 2 .01UF,1KV 20,25W C8 2 1 .01UF,1KV P1-4 (-) 2 1 SH (PCB4) T1 C10 R6 1 2 20,25W 1 2 3 4 X2 R16 100K 2W 8 ,300W TB3 208V 3 0.022UF,1KV 10 R7 2 H1 D1 (+) 4 H2 (-) 40UF,400VDC P1-3 P5-9 P6-10 E2 G2 P6-11 V Q2 C4 P2-4 P2-1 P1-6 P1-5 P2-14 P3-4 P3-5 P4-5 P4-4 P4-1 V V P1-2 PCB3 P1-1 E1 P1-3 G1 P1-10 V V V P2-11 V P3-2 P3-1 V V V P5-4 (-) V P1-1 P1-2 PCB2 V P1-3 G2 V E1 (CONTROL BOARD) TS1 G1 2 20V PCB1 1UF 600V 3 P1-4 115V C15 V Q1 9 X10 10K,2W 1800UF,450VDC C2E1 R9 X9 R1 (+) 1 X8 1UF,600V 1 P1-4 18V V C3 C1 C2 P2-7 V X1 10K,25W V .22UF,1KV 10K,25W 4 7 X7 2 P1-9 P5-3 C19 1 6 X6 X5 D1 R15 R2 5 X12 1 V 2 X11 X4 D3 L2 R10 10,50W X3 V R2 X2 V G H4 1 AC1 D6 IBR X1 3A,600VAC AC3 (+) 400V H3 T2 275V 3 230V C MOV1 MOV2 275V 2 208V H1 V MOV3 0 C V B T3 V A TB5-2 V LOAD FN1 208V 1 M1 V V B 2 V A 230V TB5-1 S1 V RED T2 LINE L3 V T1 1 208/230 VAC 50/60 HZ 3 PH CE V L2 Part 1 V L1 BLK 6.5.1 230V Console Schematic 10 OHM,50W 1 1 2 C5 T4 6-12 L1 1 H2 X1 R3 2 1 2 1 .01UF,1KV 20,25W R4 C6 2 1 20,25W 2 1 .01UF,1KV 3 SECTION 6 Troubleshooting PCM-875A Plasmarc System 230V Schematic Part 2 1 2 3 4 5 6 (SEE CHART)TB4 V V P6-7 P6-9 (+) TB4-1 TB4-2 TB4-3 TB4-4 TB4-5 TB4-6 ARC ON }SIGNAL TO CNC START SIGNAL }FROM CNC VOLTAGE DIVIDER }SIGNAL TO CNC (-) V P2-3 3 1 S2 6 5 4 V P1-12 2 1 V P1-11 FS P6-1 V P6-2 P2-2 V V 1 S3 2 1 PCB1 ZD1 SOL1 (CONTROL BOARD) 75mA 60V 2 P2-3 V P5-5 NOT USED ON CONSOLES 0558003356 & 0558003357 2 V P2-4 V + PL2 V P5-6 4T J1 C17 P2-13 P2-12 .022UF 250VAC A V 115 VAC K1 1 2 C21 K1 K1 T3 L3 L2 T2 .01UF,250 VAC PILOT ARC T1 L1 C20 C9 TB1-1 WORK P.A. V H1 1 0.047uf 660V GND 5 PCB5 V P1-6 V V P1-3 (+) T5 H2 X2 2 SG C14 2500 PF,15KV C13 2500 PF,15KV TB2 H2 H1 TORCH X2 P1-2 .01UF 1KV .01UF 1KV X1 C23 B TB1-2 GND 4 C11 C12 .022UF, 1KV GND 3 P1-1 SHIELD GND 2 .82UF 630VDC K1 TORCH SWITCH C18 .022UF 250VAC V 330K ,1W 2 V V P5-2 R13 1 V L3 V P5-1 T3 X1 (-) 3 6-13 SECTION 6 Troubleshooting PCM-875A Plasmarc System 6.5.2 230V Power Console Wiring Diagrams Part 1 J1 SHIELD 8 C1 7 C1 GND 2 P5-1 P5-2 P4 P5 P3 P1 PCB1 (SEE CHART) P2 S1-T3 BLK 1 TB4 S1-T2 BLK PCB5 P1-3 VIO S1-T1 BLK PCB1 P6-7 YEL PCB5 P1-2 BLU J1-2 BLK J1-1 GRY C C LINE 5 4 3 2 7 6 FN1 B CE MARKED UNITS B ONLY A A IBR-T BLK LOAD P6 IBR-S BLK IBR-R BLK PCB1 P6-9 ORN 2 PCB1 P1-11 RED S1-5 RED TB1-2 BLK TB1-1 BLK * FS RED * H1 P.A. BUS ORN * RED 1 BLU SPLICE 1 * T5 X1 X2 SG-2 RED T3-H1 RED TB2 C1 C 3 14 SG-1 RED * T3-H2 RED T5-X2 RED T5-X1 RED * YEL PCB1 P2-11 YEL PCB1 P2-14 PCB1 P2-12 BLU 1 PL1 2 + NOT USED ON CONSOLES 0558003356 & 0558003357 A K1 B PCB1 P2-13 BLU T1 T2 T3 BLU R11-2 YEL 2 SG PCB1 P5-5 RED PL2 PCB1 P1-12 BLK PCB1 P2-4 ORN PCB1 P6-1 BLU S3 PCB1 P5-6 BLK RED FS-2 4 5 6 GRY PCB1 P2-3 12 3 S2 BLU PCB1 P6-2 1 2 PCB1 P6-12 BRN PCB1 P6-6 WHT 2 1 3 R1 6-14 R13 C21 L1 L2 L3 H2 * PCB1 P6-13 RED SECTION 6 Troubleshooting PCM-875A Plasmarc System 230V Power Console Wiring Diagrams Part 2 DETAIL "A" (PCB1) P1 P2 P5 1 2 3 4 TS1-1 TS1-2 T2-X9 T2-X10 VIO VIO BRN BRN 1 2 3 3 T2-X7 SOL1-1 SOL1-2 S1-3 ORN WHT GRY GRY 1 2 3 4 J1-1 J1-2 T2-X1 T2-X2 5 6 T2-X5 T2-X6 BLU BLU 4 4 T2-X8 S1-2 ORN ORN 5 6 PL2-(+) PL2-(-) 7 8 9 T4-1 T4-2 T2-X3 ORN ORN WHT 5 10 T2-X4 WHT 11 12 FS-1 S1-4 RED BLK FN1 LINE B 6 7 IBR-G YEL 8 IBR(+) BRN 9 10 7 8 9 R16-1 10 11 11 11 12 12 13 T2-X11 PL1-1 TB1-1 VIO YEL BLU 12 K1-A TB1-2 BLU BLU 13 14 14 K1-B PL1-2 T2-X12 BLU YEL VIO BLK BLU BRN 1 2 3 4 S2-1 S2-2 BLU BLU RED 5 PCB1 P6-6 WHT BLK 6 R1-2 WHT GRY 7 TB4-1 YEL 8 8 9 TB4-2 ORN 10 PCB4-3 BLK (TP) 11 12 13 PCB4-4 RED (TP) R1-1 BRN R1-3 RED LINE S1 T1 T2 T3 1 2 3 BLK BLU BRN FN1 LINE C CLR (TP) BLK (TP) YEL YEL PCB1 P6-5 WHT LOAD FN1 LINE A P6 F1 * RED T2-H1 BLK M1-2 * 1 2 IBR (T) BLK * BLK TB5-2 1 * F1-1 BLK M1 2 GRN INPUT POWER CABLE GND1 6-15 SECTION 6 Troubleshooting PCM-875A Plasmarc System RED PCB1 P6-11 BLK PCB1 P6-10 TB4-6 VIO TB4-5 BLU PCB4-1 RED TP 230V Power Console Wiring Diagrams Part 3 P1 PCB5 12 34 56 1 6 3 PCB4 GND 5 L1-H2 BLK R11-1 BLU R15-2 RED PCB1 P5-2 BLK(TP) C1 2 3 C1 * T1-H1 GND 3 2 C7 1 + R10 2 1 1 3 3 C4 LEFT SIDE VIEW 2 R6 1 R9 R7-1 BLU C8 1 2 C6 4 2 * T1-X2 ZD1 * L3 P.A. BUS 2 U BL L1-H1 BLK 1 Q1-C2E1 RED ORN PCB1 P1-8 R4 PCB1 P1-7 ORN PCB1 P2-8 BRN FN1 LOAD C F1-2 BLK YEL * L2-X2 ORN D1 - T4 1 2 2 TB3 1 1 2 J1 SOL1 TB4-3 GRY C10 * 2 2 T1-H2 * T1-X1 PCB1 P2-3 GRY PCB4-2 BLU R7 K1-L1 ORN Q2 PCB1 P2-2 WHT TS1 BL U 1 BLK CLR C2E1 Q1 ORN * R15-1 BLK C2E1 C4-2 RED 1 - E2 C20 C16 TB4-4 BLK C15 C4-4 BLU - PCB1 P5-1 CLR(TP) T1-X3 C1 PCB1 P1-2 VIO PCB1 P1-1 VIO YEL + C2 E2 R2-2 BLK 4 PCB3 R5 T 1 C5 G + 4 1 S 3 PCB2 - R R2 FN1 LOAD B 2 R3 A 1 2 C3 IBR C1(+) RED PCB1 P2-7 YEL LO AD MOV 1 6-16 D1(+) BLU WORK WHT RED RED WHT WHT RED RED R2-1 RED + FN 1 MOV 2 PCB1-P4 12 3 45 L2-X1 T2-H2 BLK* T2-H3 GRY* M1-1 BLK * MOV 3 PCB5 P1-1 RED VIEW B-B 2 C19 TB5 WHT IBR(+) RED * 2 C23 PCB1- P3 1 2 3 4 5 GRY + 1 VIEW E-E 1 4 - (SHUNT) SECTION 6 Troubleshooting PCM-875A Plasmarc System 230V Power Console Wiring Diagrams Part 4 PCB4-2 BLU K1-T3 YEL R11 2 R16 BLU BLU 1 R12 1 PCB1 P5-9 GRY 2 VIEW F-F X1 X11 X10 X9 X2 X3 X4 T2 X8 X5 X7 X6 PCB1 P5-3 YEL PCB1 P5-4 YEL PCB1 P1-9 WHT PCB1 P1-10 WHT PCB1 P1-5 BLU PCB1 P1-6 BLU * C11 BLU H4 BOTTOM TOP X12 * TB5-1 BLK* F1-1 RED * TB5-2 GRY H3 H2 H1 GND 4 C9 TB1 2 1 T5-H2 BLK PCB1 P2-13 BLU PCB1 P2-12 BLU T5-H1 BLK C12 * TOP * PCB1 P2-14 VIO PCB1 P2-11 VIO PCB1 P1-4 BRN PCB1 P1-3 BRN PCB1 P2-4 ORN PCB1 P2-1 ORN VIEW D-D VIEW C-C TOP AND BOTTOM B * * C4-4 Q2-C2E1 C2(+) RED * * 1 * D1-1 BLK * TB3 BLK R2 2 C1(-) * D1(-) BLK F 2 C1(-) BLK C2(-) BLK H1 PCB5 P1-6 BLK H2 E 2 X3X1 * D1-3 BLK X2 X1 C1(+) RED L2 H2H1 T1 L1 X2 T2 C C L1-H2 BLK TORCH TB2 RED SG-1 RED TORCH T3-X1 X2 C12 D C11 GND 4 PILOT ARC * E B R11 1 1 R15 * * PCB5 T3-X2 BLK * F IBR(-) (SHUNT) * PCB4 D TB1 H2 H1 X1 T3 RIGHT SIDE VIEW SHEET 2 OF 2 6-17 SECTION 6 Troubleshooting PCM-875A Plasmarc System 6.6 400V Power Console Electrical Drawings 6.6.1 400V Console Schematic Part 1 CH2 L2 CH1 4 3 3 C LOAD 1 B LINE FN1 C BH2 BH1 5 AH2 AH1 6 B A 2 2 2 1 1 A M1 1 H2 230V H3 X5 X6 X7 H1 0 EMC FILTER P/N-952253 MOVMOV 460V H4 1 X11 V 18V 115V V V V V 12V V V 18V V V P1-9 24V R10 X9 X10 X8 2 P1-5 3A,600VAC 2 1 510V X12 1 P1-6 X4 P2-14 3 X3 F1 P1-4 2 X2 X1 400 VAC 50/60 HZ 3 PH MOV P1-3 3 510V 510V P2-4 2 400V T2 CB1 12V V V V R2 (-) C19 IBR R 0.22UF,1KV 4 P2-7 P2-8 P5-3 P5-3 R1 1 UF 630VDC 1800uf C1 1800uf 450VDC MAX 1 2 3 V C3 P6-13 P6-6 P6-12 P6-5 P1-1 V 1 UF 630VDC V C2 (+) 10K,25W V C15 10K,2W R2 10K,25W V R15 5 V G V T S (+) P1-10 1 2 P2-11 P2-1 10,50W (-) 450VDC 1 PCB1 TS1 V V P3-4 V P3-5 V P4-4 V C2E1 2 G2 C16 V 6 P1-2 V 2 (CONTROL BOARD) P/N-38109 2 2 UF 800VDC V E2 1 PCB2 E2 1 P/N-38099 P5-9 P1-8 7 P6-10 P1-7 P6-11 V Q1 P4-5 V 4 V G1 V 3 3 V C1 E1 V (-) R11 (+) RED BLK 8 ,300W 1 2 R16 100K 2W 8 ,300W X3 8 R12 X2 3 H1 39K,2W 2 C4 40UF,400VDC C10 2 1 1 2 .01UF,1KV 20,25W R6 C8 3 2 1 1 2 20,25W 2 1 .01UF,1KV 2 (-) SH (PCB4) T1 0.022UF 1KV 4 (+) R5 3 4 10 2 R7 H1 H2 D1 (+) 9 TB3 C7 (-) 1 R9 1 10 OHM,50W 1 1 3 6-18 2 T4 L1 1 H2 X1 C5 R3 R4 C6 2 1 .01UF,1KV 1 2 20,25W 1 2 20,25W 2 1 .01UF,1KV 3 SECTION 6 Troubleshooting PCM-875A Plasmarc System 400V Console Schematic Part 2 2 3 4 6 5 (+) (-) } } } ARC ON SIGNAL TO CNC START SIGNAL FROM CNC VOLTAGE DIVIDER SIGNAL TO CNC V P6-9 P2-3 V 3 2 V P2-4 1 S2 6 5 4 V P1-12 1 V P1-11 2 FS 1 V P6-1 2 P6-2 V P2-2 V 3 S3 1 PCB1 SOL1 2 P2-3 V P5-5 V (CONTROL BOARD) P/N-38109 0558003357 P6-7 V TB4-1 TB4-2 TB4-3 TB4-4 TB4-5 TB4-6 NOT USED ON CONSOLES 0558003356 & 1 (SEE CHART)TB4 ZD1 75mA 60V + PL2 V P5-6 C17 L3 .022UF 250VAC 4T 1 V V P5-1 J1 P2-13 P2-12 V P5-2 TORCH SWITCH V 2 C18 .022UF 250VAC SHIELD GND 2 V V R13 330K ,1W A 115 VAC .82UF 630VDC 1 C21 K1 K1 K1 T3 L3 L2 T2 PILOT ARC T1 L1 C20 2 .01UF,250 VAC WORK H1 C11 C12 .01UF .01UF 1KV V X1 C23 1 .047uf 660V PCB5 TB1-2 GND 5 1KV T5 SG C13 H2 X2 2 2500 PF,15KV C142500 PF,15KV TB2 H1 H2 TORCH V P1-6 (+) P1-2 V P1-3 B GND 4 GND 3 P1-1 C9 TB1-1 .022UF, 1KV P.A. K1 X2 V T3 X1 (-) 3 6-19 SECTION 6 Troubleshooting PCM-875A Plasmarc System 6.6.2 400V Console Wiring Diagrams Part 1 J1 SHIELD 8 C1 GND 2 7 C1 P4 P5-1 P5-2 P5 P3 P1 PCB1 (SEE CHART) P2 P6 2 * * * 1 TB4 PCB5 P1-3 VIO S1-T3 C FN1 B S1-T1 A PCB1 P6-7 YEL PCB5 P1-2 BLU J1-2 BLK J1-1 GRY CE MARKED UNITS ONLY PCB1 P1-11 RED RED TB1-1 BLK SPLICE SG SG-1 RED T5 X1 X2 * ** * L2 H2 H2 H2 2 YEL PCB1 P2-11 1 T5-X2 RED C1 C 3 14 H2 H1 YEL PCB1 P2-14 * T3-H2 RED T3-H1 RED * * * TB2 TB1-2 BLK 1 PL1 2 PCB1 P5-5 RED + PL2 PCB1 P5-6 BLK - PCB1 P1-12 BLK PCB1 P2-4 ORN RED FS-2 45 6 GRY PCB1 P2-3 1 2 3 S1 PCB1 P6-1 BLU S2 PCB1 P6-6 WHT BLU PCB1 P6-2 2 PCB1 P6-12 BRN 1 1 2 3 R1 PCB1 P6-13 RED S1-T1 S1-T2 S1-T3 S1-5 IBR-T 2 SG-2 RED RED ** * FS NOT USED ON CONSOLES 0558003356 & 0558003357 IBR-R BLK A IBR-S IBR-R RED 6-20 B IBR-T BLK IBR-S BLK PCB1 P6-9 ORN 1 T5-X1 RED C S1-T2 LOAD 3 LINE 4 5 * 6 * 7 C B A H1 H1 H1 SECTION 6 Troubleshooting PCM-875A Plasmarc System 400V Console Wiring Diagrams Part 2 DETAIL "A" (PCB1) P1 1 2 3 4 5 6 7 8 9 10 11 12 TS1-1 TS1-2 T2-X3 T2-X4 T2-X5 T2-X6 T4-1 T4-2 T2-X7 T2-X8 FS-1 S1-4 P2 VIO VIO BRN BRN BLU BLU ORN ORN WHT WHT RED BLK * * * * * * T2-X1 SOL1-1 SOL1-2 S1-3 T2-X2 S1-2 ORN WHT GRY GRY ORN ORN IBR-G IBR(+) YEL BRN 11 11 12 12 13 13 14 14 T2-X11 PL1-1 TB1-1 K1-A TB1-2 K1-B VIO YEL BLU BLU BLU BLU PL1-2 T2-X12 YEL VIO * * P5 1 2 3 4 5 6 P6 J1-1 CLR (TP) 1 S2-1 J1-2 BLK (TP)2 S2-2 T2-X9 YEL 3 T2-X10 YEL 4 PL2-(+) RED 5 PCB1 P6-6 PL2-(-) BLK 6 R1-2 PCB1 P6-5 * * 7 8 9 R16-1 10 11 TB4-1 7 T1 T2 T3 BLU BLU WHT WHT WHT YEL 8 GRY 8 9 TB4-2 10 PCB4-3 ORN BLK (TP) 11 PCB4-4 12 R1-1 13 R1-3 RED (TP) BRN RED 12 * S1 FN1-LINE A FN1-LINE B * 1 2 3 3 4 4 5 6 7 8 9 10 F1 1 2 3 RED T2-H1 BLK M1-2 * * 2 1 IBR (T) BLK BLK BLU BRN FN1-LINE C BLK BLU BRN *SPLICE T2-H2 GRY * F1-1 BLK 1 M1 2 GND1 INPUT POWER CABLE GRN 6-21 SECTION 6 Troubleshooting PCM-875A Plasmarc System P1 PCB5 RED PCB1 P6-11 BLK PCB1 P6-10 TB4-6 VIO TB4-5 BLU PCB4-1 RED TP 400V Console Wiring Diagrams Part 3 WHT RED WHT PCB1-P4 R2-1 RED R15-2 BLK 2 3 4 - PCB3 C1 C2 RED PCB1 P5-2 BLK(TP) C1 - C15 1 + + C16 PCB1 P5-1 CLR(TP) T1-H1 BL U 2 4 2 1 R9 R7-1 BLU 3 C1(+) YEL C4 U BL * ZD1 L3 TB4-4 BLK 2 1 2 R6 C8 ORN PCB1 P1-8 TB3 * T1-X3 P.A. BUS 2 1 2 1 SOL1 J1 TB4-3 GRY LEFT SIDE VIEW 6-22 BLK CLR R10 T4 ORN L1-H1 BLK 1 PCB1 P1-7 ORN PCB1 P2-8 BRN 2 YEL C6 F1-2 BLK R4 1 1 3 F2-2 ORN - PCB1 P2-3 GRY ORN D1 2 PCB1 P2-2 WHT C10 1 1 2 * C7 R7 T1-H2 * T1-X1 + 2 1 + T PCB4-2 BLU C5 S Q1 1 TS1 C4-4 BLU BL K G R15-1 RED 2 R5 1 R2 C19 R * T1-X3 * C2E1 PCB1 P1-2 VIO PCB1 P1-1 VIO 2 IBR R3 R2-2 BLK E2 MOV 1 12 3 45 WHT C3 PCB1 P2-7 YEL Y GR MOV 2 * FN1-LOAD B BLK* FN1-LOAD C BLK* FN1-LOAD A BLK RED 12 3 45 YEL MOV 3 R11-1 BLU WORK VIEW B-B PCB1-P3 FASTON TERMINAL PINK MALE P/N A-950904 D1(+) BLU 1 L1-H2 BLK C23 T2-H3 BLU C4-2 YEL + 2 1 VIEW E-E FASTON TERMINAL PINK FEMALE P/N A-950906 4 - (SHUNT) PCB5 P1-1 RED 1 2 3 4 56 6 3 PCB4 GND 5 SECTION 6 Troubleshooting PCM-875A Plasmarc System 400V Console Wiring Diagrams Part 4 * * PCB1 P1-5 BLU * * * PCB1 P5-4 YEL * PCB1 P1-9 WHT PCB1 P1-10 WHT PCB1 P1-6 BLU PCB1 P5-3 YEL X5 X6 X7 X8 X9 X10 PCB4-2 BLU BOTTOM K1-T3 YEL R11 * * * * * * R12 1 PCB1 P2-4 ORN PCB1 P2-1 ORN PCB1 P1-3 BRN PCB1 P1-4 BRN PCB1 P2-11 VIO PCB1 P2-14 VIO BLU 2 BLU 1 PCB1 P5-9 GRY R16 2 VIEW F-F GND 4 PCB1 P2-12 BLU T5-H1 BLK C12 H1 H2 H3 H4 H5 ORN WHT * * 2 1 C9 TOP T5-H2 BLK PCB1 P2-13 BLU * T2 F1-1 RED SPLICE (M1-1) GRY TB1 C11 TOP * X12 X11 X4 X3 X2 X1 VIEW D-D NOT USED * SPLICE IBR(R) BLU VIEW C-C TOP AND BOTTOM B R2 * Q1-C2E1* C4-4 C2(-) BLK 2 P.A. BUS ORN * D1-3 K1 T2 A T1 R11-2 YEL PCB1 P2-12 BLU C21 R13 C1(+) RED X3X1 L2 L1 C1(-) BLK C2(+) RED L3 B T3 BLU * D1-1 * TB3 BLK R11 BLU * PCB1 P2-13 BLU 1 R15 2 D1(-) BLK PCB5 P1-6 BLK F 2 H1 E H2 H2H1 T1 L1 X2 C T2 C GND 4 D PILOT ARC L1-H2 BLK TORCH TB2 RED SG-1 RED TORCH T3-X1 X2 C12 C11 E B R11 1 1 * PCB5 T3-X2 BLK F * * PCB4 (SHUNT) D TB1 H2 H1 X1 T3 6-23 SECTION 6 Troubleshooting PCM-875A Plasmarc System 6.7 Remote Arc Starter (RAS-2) Schematic C1, C2 2500 pF FN1 T1 EMI FILTER STEP UP TRANSFORMER C A B 120 VAC SG1 SPARK GAP 0.040 P1 POWER SUPPLY (-) TORCH (-) X1 X3 PCB1 REACTOR L1 FILTER PILOT ARC IN 6-24 PILOT ARC TO TORCH SECTION 7 Replacement Parts 7.1 General Always provide the serial number of the unit on which the parts will be used. The serial number is stamped on the unit nameplate. 7.2 Ordering To ensure proper operation, it is recommended that only genuine ESAB parts and products be used with this equipment. The use of non-ESAB parts may void your warranty. Replacement parts may be ordered from your ESAB Distributor or from: ESAB Cutting Systems GmbH Robert-Bosch-Strasse 20 P.O. Box 1128 D-61184 Karben Phone +011 49 60 39 400 Fax +011 49 60 39 40301 02 http://www.esab.de ESAB Welding and Cutting Products ATTN: Customer Service Department PO Box 100545 Ebenezer Road Florence, SC USA 29501-0545 Phone (843) 664-4405 (800) ESAB-123 (372-3123) ESAB Cutting Systems - Canada 6010 Tomken Road Mississauga, Ontario, Canada L5T 1X9 Phone (905) 670-0220 Fax (905) 670-4879 Be sure to indicate any special shipping instructions when ordering replacement parts. Refer to the Communications Guide located on the last page of this manual for a list of customer service phone numbers. 7-1 SECTION 7 Replacement Parts 7.3 PCM-875A Power Console – 230V- (P/N 0558003356) 1 POWER AIR PRESSURE 2 PCM-875A FAULT CURRENT CONTROL AIR TEST TEST 3 OPERATE 40 30 50 20 60 0 4 5 TORCH WORK 6 8 7 7-2 9 10 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 951754 1 Lamp, LED Yellow, 12V PL2 2 0558001176 1 POT, 10K, 30W R1 3 951526 1 Lamp, Neon, White PL1 4 21711 1 Gauge, 1.5 160 PSI WHT CDM STL 5 634518 1 Toggle Switch, 2 pos, 15A, 125V 6 Not Required when RAS-2 is used 1 Reactor Assembly Reference Only 7 182W12 4 Rubber Foot 8 Not Required when RAS-2 is used 9 0558003618 1 Wire Kit 10 673458 1 Contactor, 3 pole, 110VAC, 40A S2 Spark Gap Assembly K1 7-3 SECTION 7 Replacement Parts PCM-875A Power Console – 230V- (P/N 0558003356) 230V CE 2 1 4 5 6 9 7-4 3 8 7 10 11 12 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 951182 1 Axial Fan, AC M1 2 17240310 2 Resistor, 10K, 25W R2,15 3 952233 1 Output Inductor L1 4 2091558 1 Label 5 Label 6 952026 1 Term block, 7 pos, 25A, 12-18AWG TB4 7 951202 1 Switch, Flow, .25 GPN, SPST FS 8 952597 Filter EMC, 250.440V 3ph FN1 9 950249 Valve, Solenoid, ¼ NPT, 165 PSI, 24VAC SOL1 10 Not used in conjunction with RAS-2 Spark Gap 11 0558003618 Wire Kit 12 673458 Contactor, 3 pole, 110VAC, 40A 1 7-5 SECTION 7 Replacement Parts PCM-875A Power Console – 230V- (P/N 0558003356) Top View-and Right Side 6 4 4 Not Used 20:1 (+) Relay Closing 7 3 2 1 Arc On Signal 5 Start Signal 6 Relay Closing 7 Voltage Divider (-) 5 8 3 2 1 10 9 11 7-6 12 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 951340 1 Plug Female, 14 pos, PCB1 P6 2 951339 1 Plug Female, 12 pos, PCB1 P5 3 38214 1 PCB Control PCB1 4 951339 1 Plug Female, 12 pos, PCB1 P1 5 951340 1 Plug Female, 14 pos, PCB1 P2 6 38131 1 PCB Startup PCB5 7 31488 1 PCB Ay, Shunt Board PCB4 8 36586 1 XFMR Assy, Main T1 9 17300012 2 Resistor, 300W, 12 ohm R11,12 10 952232 1 Inductor, PFC (used on 230V unit only) L2 11 32914 1 XFMR Assy Control T2 12 950487 Terminal Block, 2 pos, 20A TB1 7-7 SECTION 7 Replacement Parts PCM-875A Power Console – 230V- (P/N 0558003356) Left Side 230V CE Detail 1 2 5 6 7 8 9 10 11 12 3 13 15 14 7-8 16 4 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 36822 1 Hose, Assy, B/A-WX1/4NPT Rub 2 0558001177 2 PCB Assy, Mosfet/IGBT Driver Bd PCB2,3 3 952237 2 Capacitor, 1800uf, 400VDC, W/nut C1,2 4 90858003 .75FT Tubing, Plas, .25 od X .04 W BLK 5 950487 1 Terminal Block, 2 pos, 20A TB5 6 952235 1 Module, Input bridge/scr IBR 7 951205 2 IGBT 600V, 100A, Ser H Q1,2 8 17250010 1 Resistor, WW, Fixed, 50W, 10 ohm R10 9 17750010 1 Resistor, WW, 50W, 3%, 10 ohm R7 10 952255 1 Capacitor, 40 uf, 400VDC C4 11 950711 1 Thermal Switch, 194 deg. TS1 12 951940 2 Capacitor, 1uf, 630W VDC C15,16 13 17721020 4 Resistor, WWFAHT, 25W, 1%, 20 ohm Nl R3,4,5,6 14 952150 1 Bridge, 60ADC, 100NS, 600V D1 15 952208 1 Standoff, insulating TB3 16 952002 1 Core, Saturable L3 7-9 SECTION 7 Replacement Parts 7.4 PCM-875A Power Console – 400V- (P/N 0558003357) 1 POWER AIR PRESSURE 2 PCM-875A FAULT CURRENT CONTROL AIR TEST TEST 3 OPERATE 40 30 50 20 60 0 4 5 TORCH WORK 6 8 7 7-10 9 10 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 951754 1 Lamp, LED Yellow, 12V PL2 2 0558001176 1 POT, 10K, 30W R1 3 951526 1 Lamp, Neon, White PL1 4 21711 1 Gauge, 1.5 160 PSI WHT CDM STL 5 634518 1 Toggle Switch, 2 pos, 15A, 125V 6 Not Required when RAS-2 is used 1 Reactor Assembly Reference Only 7 182W12 4 Rubber Foot 8 Not Required when RAS-2 is used 9 0558003618 S2 Spark Gap Assembly 1 Wire Kit See next illustration 7-11 SECTION 7 Replacement Parts PCM-875A Power Console – 400V- (P/N 0558003357) 400V CE 4 7 7-12 3 2 1 6 5 8 9 10 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 951182 1 Axial Fan, AC M1 2 17240310 2 Resistor, 10K, 25W R2,15 3 952233 1 Output Inductor L1 4 952026 1 Term block, 7 pos, 25A, 12-18AWG TB4 5 951202 1 Switch, Flow, .25 GPN, SPST FS 6 952253 Filter, EMC, 400V FN1 7 950249 Valve, Solenoid, ¼ NPT, 165 PSI, 24VAC SOL1 8 Not used in conjunction with RAS-2 Spark Gap 9 0558003618 Wire Kit 10 0558001193 Wire Kit, 400V CE 1 L2 7-13 SECTION 7 Replacement Parts PCM-875A Power Console – 400V- (P/N 0558003357) 6 4 4 Not Used 20:1 (+) Relay Closing 7 3 2 1 Arc On Signal 5 Start Signal 6 Relay Closing 7 Voltage Divider (-) 5 8 3 2 1 10 9 11 7-14 12 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 951340 1 Plug Female, 14 pos, PCB1 P6 2 951339 1 Plug Female, 12 pos, PCB1 P5 3 38214 1 PCB Control PCB1 4 951339 1 Plug Female, 12 pos, PCB1 P1 5 951340 1 Plug Female, 14 pos, PCB1 P2 6 38131 1 PCB Startup PCB5 7 31488 1 PCB Ay, Shunt Board PCB4 8 36586 1 XFMR Assy, Main T1 9 673458 1 Contactor, 3 pole, 110VAC, 40A K1 10 17300012 2 Resistor, 300W, 12 ohm R11,12 11 32914 1 XFMR Assy Control T2 12 950487 Terminal Block, 2 pos, 20A TB1 7-15 SECTION 7 Replacement Parts PCM-875A Power Console – 400V- (P/N 0558003357) 400V CE 1 2 5 7-16 6 7 8 10 11 9 12 3 13 14 15 16 4 SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 36822 1 Hose, Assy, B/A-WX1/4NPT Rub 2 0558001178 1 PCB Assy, IGBT Driver Bd PCB2 3 952237 2 Capacitor, 1800uf, 400VDC, W/nut C1,2 4 90858003 .75FT Tubing, Plas, .25 od X .04 W BLK 5 950487 1 Terminal Block, 2 pos, 20A TB5 6 952235 1 Module, Input bridge/scr IBR 7 17750010 1 Resistor, WW, 50W, 3%, 10 ohm R7 8 Not used with RAS-2 1 Spark Gap SG 9 951800 1 Module Dual IGBT 150V 1200A Q1 10 952255 1 Capacitor, 40 uf, 400VDC C4 11 950711 1 Thermal Switch, 194 deg. TS1 12 951964 1 Capacitor, 2uf, 800VDC C16 13 17721020 4 Resistor, WWFAHT, 25W, 1%, 20 ohm Nl R3,4,5,6 14 952150 1 Bridge, 60ADC, 100NS, 600V D1 15 952208 1 Standoff, insulating TB3 16 952002 1 Core, Saturable L3 7-17 SECTION 7 Replacement Parts 7.5 Remote Arc Starter (RAS-2) (P/N 0558003670) A 1 B 2 A 3 B 4 4 View A-A 7-18 View B-B SECTION 7 Replacement Parts Ref. Part Number Quantity Description Elect. 1 674969 1 PC Board Filter PCB1 2 634090 1 Adapt ¼ NPTM C/A W*F Cable 3 0558003679 1 Reactor Assembly H.F. 4 Reference Screw, PHTF #10-32 X .38 inch 7-19 SECTION 7 Replacement Parts Remote Arc Starter (RAS-2) (P/N 0558003670) 1 2 3 4 5 6 5 REF. 12 12 7 9 7-20 10 11 8 SECTION 7 Ref. Part Number Replacement Parts Quantity Description 37410 Cable Assembly, Arc Starter, 15,2m 37411 Cable Assembly, Arc Starter, 30,4m 0558003692 Hose Air/Oxy ¼ NPTF RAS2, 15,4m 0558003693 Hose Air/Oxy ¼ NPTF RAS2, 30,4m 0558003686 Cable, Pilot Arc, RAS2, 15,2m 0558003687 Cable, Pilot Arc, RAS2, 30,4m 37341 Cable, Power RAS, 15,2m 37342 Cable, Power RAS, 30,4m 5 0558002818 Spark Gap Electrode Holder Assembly 6 0558003675 2 Grounding Plate 7 0558003672 2 Cover, Torch Connect, RAS2/PT20AMX 8 0558003671 1 Cover, Box Side 9 950853 2 Fitting, 1/4 NPT to 3/8 id Hose 10 952860 2 Clamp, 1-ear w/insert 12.8 GER 11 4600030 30mil Nomex 12 Reference Screw, PHTF #10-32 X .38 inch Elect. 1 2 3 4 SG1 7-21 SECTION 7 Replacement Parts 7.6 PT-20AMX Plasmarc Cutting Torch 1 4 16 6 5 7 17 1 18 8 9 2 15 3 10 11 13 12 14 7-22 SECTION 7 Replacement Parts PT-20 AMX Plasma Torch with Coaxial Pilot Arc Cable Ref. 1 With 4 ft. torch leads, without handle rack P/N 0558002632 With 17 ft. torch leads, without handle rack P/N 0558002633 With 25 ft. torch leads, without handle rack P/N 0558003381 Description .................................................................................................... Part Number Torch Lead Assembly – 4 ft. ........................................................................ 0558002638 Torch Lead Assembly – 17 ft. ...................................................................... 0558002639 Torch Lead Assembly – 25 ft. ...................................................................... 0558003383 4 Lock Ring....................................................................................................... 57N70 5 Rubber Boot .................................................................................................. 0558001157 6 Wrap with electrical tape as shown ..................................................................... Reference 7 H.F. Connector .............................................................................................. 17974 8 Set screw 6-32 X 3/16 ............................................................................................ Reference 9 Insulate with vinyl tubing and secure with electrical tape ................................ Reference 10 Handle and sleeve without rack .................................................................. 22329 11 Handle ..................................................................................................................... Reference 12 Basic Torch Body Assembly ....................................................................... 21359 13 O-ring supplied with torch body ................................................................. 5W92 14 O-ring supplied with torch body ................................................................. 488157 15 Shield Shroud – 25 ft. ................................................................................... 72020003 16 Lubricant........................................................................................................ 17672 7-23 SECTION 7 Replacement Parts PT-20 AMX Front End and Spare Parts Kit 2 1 5 4 8 3 6 7 9 7-24 SECTION 7 Replacement Parts Ref. Description Part Number 1 Wrench Seat/Baffle 21375 2 Baffle Tube 21374 3 Electrode 50Hz 4 Electrode Insulator 21373 5 Electrode Holder Assembly 21332 6 Heat Shield (70 and 100 Amp – Blue) 21326 Nozzle (70 Amp) 21329 Nozzle (50 Amp) 21330 8 O-Ring 488157 9 PT-20AMX Spare Parts Kit 0558001617 7 0558002319 Quantity Contents Description Heat Shield (70/100 A)* 21326 3 Cutting Nozzle (50 A) 21330 5 Cutting Nozzle (70 A) 23129 5 Electrode 50Hz 0558001617 5 Electrode Insulator 21373 1 Electrode Holder Assembly 21332 1 Baffle Tube 21374 1 Pilot Arc Adaptor 19497 1 O-ring 488157 5 Lubricant (1 oz.) 17672 1 Seat/Baffle Wrench 21375 1 1/16: Hex-Key Wrench 93750006 1 NOTICE The description of the heat shield (P/N 21326) listed above indicates a range of 70 to 100 amperes. The PCM-875A is capable of a maximum of 60 amperes (60% duty cycle). Testing has proven satisfactory results when using this heat shield at 60 amps and lower. 7-25 SECTION 7 This page intentionally left blank. 7-26 Replacement Parts See back of Title Page for revision list. Customer // Technical Support (843) 664-4405 (800) ESAB-123 (372-2123) ESAB Welding and Cutting Products PO BOX 100545 Ebenezer Road Florence, SC 29501-0545 http://www.esab.com ESAB Cutting Systems – Canada 6010 Tomken Road Mississauga, Ontario Canada L5T 1X9 Phone: (905) 670-0220 Fax: (905) 670-4879 ESAB Cutting Systems GMBH Robert-Bosch-Strasse 20 Postfach 1128 D-61184 Karben 1 Phone 011-49-6039-400 Fax 011-49-6039-403-02 http://www.esab.de Printed in U.S.A