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CE & RCM VOLTAGE INPUT POWER VOLTAGE 480V 400V PHASE MAX OUTPUT OUTPUT MAX OUTPUT AMPS AMPS CUTMASTER® 50+ CUTMASTER® 70+ PLASMA CUTTING SYSTEM OPERATING MANUAL Revision: AA Issue Date: June, 2023 0700 402 229 Manual No.: esab.com...
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WE APPRECIATE YOUR BUSINESS! Congratulations on your new ESAB product. We are proud to have you as our customer and will strive to provide you with the best service and reliability in the industry. This product is backed by our exten- sive warranty and world-wide service network.
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Be sure this information reaches the operator. You can get extra copies through your supplier. CAUTION These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for arc welding and cutting equipment, we urge you to read our booklet, “Precautions and Safe Practices for Arc Welding, Cutting, and Gouging,”...
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ASSUREZ-VOUS QUE CETTE INFORMATION EST DISTRIBUÉE À L’OPÉRATEUR. VOUS POUVEZ OBTENIR DES COPIES SUPPLÉMENTAIRES CHEZ VOTRE FOUR- NISSEUR. MISE EN GARDE Les INSTRUCTIONS suivantes sont destinées aux opérateurs qualifiés seulement. Si vous n’avez pas une connaissance approfondie des principes de fonctionne- ment et des règles de sécurité...
TABLE OF CONTENTS SECTION 1: GENERAL INFORMATION............11 1.01 Safety Precautions ....................11 1.02 Notes, Cautions and Warnings ................. 12 SECTION 2 SYSTEM: INTRODUCTION ............15 2.01 How To Use This Manual ..................15 2.02 Equipment Identification ..................15 2.03 Receipt Of Equipment ....................15 2.04 Power Supply Specifications CE &...
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TABLE OF CONTENTS SECTION 4 TORCH: OPERATION ..............45 4T.01 Machine and Automated Torch Operation ..............45 4T.02 Automation Torch Parts Selection ................45 4T.03 Machine and Hand Torch Parts Selection ..............46 4T.04 Cut Quality ....................... 47 4T.05 General Cutting Information ..................47 4T.06 Hand Torch Operation ....................
1.01 Safety Precautions Users of ESAB welding and plasma cutting equipment have the ultimate responsibility for ensuring that anyone who works on or near the equipment observes all the relevant safety precautions. Safety precautions must meet the requirements that apply to this type of welding or plasma cutting equip- ment.
CUTMASTER 50+, CUTMASTER 70+ 1.02 Notes, Cautions and Warnings Throughout this manual, notes, cautions, and warnings are used to highlight important information. These highlights are categorized as follows: NOTE! An operation, procedure, or background information which requires additional emphasis or is helpful in efficient operation of the system.
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CUTMASTER 50+, CUTMASTER 70+ Class A equipment is not intended for use in residen- CAUTION tial locations where the electrical power is provided by the public low-voltage supply system. There may be potential difficulties in ensuring electromagnetic compatibility of class A equipment in those locations, due to conducted as well as radiated disturbances.
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CUTMASTER 50+, CUTMASTER 70+ WARNING AVERTISSEMENT 1. Cutting sparks can cause explosion 1. Les étincelles de coupage peuvent or fire. provoquer une explosion ou un 1.1 Do not cut near flammables. incendie. 1.2 Have a fire extinguisher nearby and 1.1 Ne pas couper près des matières ready to use.
To ensure safe operation, read the entire manual, including the chapter on safety instructions and warnings. Electronic copies of this manual can be downloaded at no charge in Acrobat PDF format on the ESAB web site listed below then clicking on "SUPPORT" / "Manuals", and you can also use your phone or tablet to scan the QR code on page i, enter your search criteria above to locate the documents.
CUTMASTER 50+, CUTMASTER 70+ 2.04 Power Supply Specifications CE & RCM CM 50+, 70+ 400 VAC 3 Phase Power Supply Specifications Model CM 50+ CM 70+ Input Power 400 VAC±15%, 3 Phase, 50/60 Hz 3 Phase Input Power Cable CE & RCM 3 M, 2.5mm 3 M, 4mm 3 M, 4mm...
CUTMASTER 50+, CUTMASTER 70+ 2.06 Generator Recommendations CE & RCM When using generators to power the CM 50+ Plasma Cutting System, the following ratings are a minimum and are to be used along with the ratings previously listed. CM 50+ Generator Specifications Generator Output Rating Output Current Arc Characteristic...
CUTMASTER 50+, CUTMASTER 70+ 2.07 Power Supply Specifications ETL CM 50+, 70+ 480 VAC 3 Phase Power Supply Specifications Model CM 50+ CM 70+ Input Power 480 VAC±15%, 3 Phase, 50/60 Hz 3 Phase Input Power Cable ETL Power Supply includes 3 M three phase 11AWG input cable 15 - 50A, 15 - 70A, Output Current...
CUTMASTER 50+, CUTMASTER 70+ 2.09 Generator Recommendations ETL When using generators to power the CM 50+ Plasma Cutting System, the following ratings are a minimum and are to be used along with the ratings previously listed. CM 50+ Generator Specifications Generator Output Rating Output Current Arc Characteristic...
CUTMASTER 50+, CUTMASTER 70+ 2.10 Power Supply Features Handle and Leads Wrap Control Panel Torch Leads Receptacle Work Lead Receptacle Gas Inlet Port Input Power Main Switch Input Power Cord INTRODUCTION 0700 402 229...
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CUTMASTER 50+, CUTMASTER 70+ Weights and Dimensions 8” 203.29 mm 12.25" 311.21 mm 18.82" 478.07 mm 34.8 lb / 15.8 kg Power Supply Dimensions & Weight Clearances for Operation and Ventilation 15" 381 mm Ventilation Clearance Requirements 0700 402 229 INTRODUCTION...
CUTMASTER 50+, CUTMASTER 70+ SECTION 2 TORCH: INTRODUCTION 2T.03 Specifications Torch Configurations 2T.01 Scope of Manual Hand/Manual Torch, Models This manual contains descriptions, operating The hand torch head is at 75° to the torch instructions and maintenance procedures for handle. The hand torches include a torch the 1Torch Models SL60/Manual and SL100/ handle and torch trigger assembly.
CUTMASTER 50+, CUTMASTER 70+ Parts - In - Place (PIP) NOTE! Operating pressure varies with torch model, oper- Torch Head has built - in switch ating amperage, and torch leads length. Refer to gas pressure settings charts for each model. 22±1.5 VDC circuit rating Type Cooling Direct Contact Hazard...
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CUTMASTER 50+, CUTMASTER 70+ Main Cutting Arc DC power is also used for the main cutting arc. The negative output is connected to the torch electrode through the torch lead. The positive output is connected to the workpiece via the work cable and to the torch through a pilot wire.
CUTMASTER 50+, CUTMASTER 70+ SECTION 3 SYSTEM: INSTALLATION 3.01 Unpacking Use the packing lists to identify and account for each item. Inspect each item for possible shipping damage. If damage is evident, contact your distributor and / or shipping company before proceeding with the installation. Record Power Supply and Torch model and serial numbers, purchase date and vendor name, in the information block at the front of this manual.
CUTMASTER 50+, CUTMASTER 70+ 3.03 Gas Connections Connecting Gas Supply to Unit The connection is the same for compressed air or high pressure cylinders. Connect the air line to the quick connect inlet port. The following illustration shows typical gas line with quick connect fittings as an example. NOTE! For a secure seal, apply thread sealant to the fitting threads, according to manufacturer’s instructions.
CUTMASTER 50+, CUTMASTER 70+ IF using high pressure cylinders, or your supply pressure exceeds 125 psi / 8.62 bar / 862 kPa, you MUST use regulator to lower pressure to between 90 - 125 psi / 6.2 - 8.6 bar / 620 - 862 kPa before introducing air to the system.
CUTMASTER 50+, CUTMASTER 70+ 3.05 Work Lead Connections Connect the Work Lead to the power supply and the work piece. Attach the Dinse type connection of the work lead to the power supply front panel as shown below. Push in and turn clockwise to the right until tight. Connect the work clamp to the workpiece or cutting table.
SECTION 3 TORCH: INSTALLATION 3T.01 Torch Connections Connect the torch to the Power Supply. Connect only the ESAB model SL60 / Manual or SL100 / Me- chanical torch to this power supply. WARNING Disconnect primary power at the source before connecting the torch.
CUTMASTER 50+, CUTMASTER 70+ 3T.02 CNC Connections Locate the interface connection port on the front of the power supply. Automation Interface Cable Port Note the pin-out of the connector and that the customer supplied connector matches. Plasma Start / Stop Signal Divided Voltage...
DIP switch (4 position) RAW ARC VOLTAGE Voltage divider The 4 position DIP switch, P1, makes available the following divide ratios: All OFF: = 20:1 for ESAB (Default for RCM); DIV1-1 ON: = 30:1; DIV1-2 ON: = 40:1 for Inova;...
CUTMASTER 50+, CUTMASTER 70+ 3T.04 Setting Up Automation or Machine Torch NOTE! An adapter is required to be installed in the power supply if converting a hand torch system to operate a machine or automation torch. WARNING Disconnect primary power at the source before disassembling the torch or torch leads. The Automation and Machine torch include a positioning tube with rack and pinch block assembly.
CUTMASTER 50+, CUTMASTER 70+ SECTION 4 SYSTEM: OPERATION 4.01 Front Panel Controls / Features See Illustration for numbering Identification (Cutmaster 70+ shown as example) 150V Control Knob To select the Menu or change values. To adjust the cutting current: • Turn clockwise to increase the cutting current.
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CUTMASTER 50+, CUTMASTER 70+ Work lead Dinse type receptacle Align Dinse type connector on work lead with receptacle, press in and turn clockwise to the right until tight. Torch Quick Disconnect Receptacle Torch Leads are connected here by aligning the connectors, pressing in and turning locking ring clock- wise-to-the-right to secure.
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CUTMASTER 50+, CUTMASTER 70+ MAIN SCREEN Current 150V Output air pressure Arc Cutting Voltage Gas purge Cutting mode Trigger mode MENU SCREEN To enter the menu screen, press the control knob. In the menu screen, the user may adjust the cutting mode, trigger mode, and gas purge.
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CUTMASTER 50+, CUTMASTER 70+ Note that 4T trigger mode is only available at plate cutting mode. When grid cutting mode is selected, 4T trigger mode can’t be selected. 150V 150V GAS PURGE SCREEN To enter gas purge, press the control knob to enter menu screen. Turn the knob clockwise to enter gas purge screen.
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CUTMASTER 50+, CUTMASTER 70+ Error screen There are several error warnings screens to indicate errors. When an error happens, the communication screen will display and cut off the output until the error is cleared. OVERHEATING COMMUNICATION SCREEN The cutting equipment is protected by a temperature sensor. The overheating communication screen is displayed if the machine is overheated, which normally occurs if the equipment duty cycle is exceeded.
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CUTMASTER 50+, CUTMASTER 70+ ELECTRODE OR TIP INSTALLATION COMMUNICATION SCREEN The electrode or tip installation communication screen is displayed when the tip and electrode are not installed correctly or wear seriously. Check or replace the worn tip and electrode. INPUT VOLTAGE COMMUNICATION SCREEN The input voltage communication screen is displayed when the input voltage is out of range or missing phase.
CUTMASTER 50+, CUTMASTER 70+ 4.02 Preparations for Operation At the start of each operating session: WARNING Disconnect primary power at the source before assembling or disassembling power supply, torch parts, or torch and leads assemblies. Torch Parts Selection Check the torch for proper assembly and appropriate torch parts. The torch parts must corre- spond with the type of operation, and with the amperage output of this Power Supply (70 amps maximum at AC400V or AC480V).
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CUTMASTER 50+, CUTMASTER 70+ Set Operating Pressure Gas pressure can be set in the power supply, from 50 - 90 psi / 3.4 - 6.2 bar / 340- 620 kPa. Remove the right panel, inbuilt air regu- Regulating Handle lator assembly is located in front of the power supply;...
CUTMASTER 50+, CUTMASTER 70+ SECTION 4 TORCH: OPERATION For optimum smooth surface quality, the travel speed should be adjusted so that only the leading edge of the arc column 4T.01 Machine and Automated Torch produces the cut. If the travel speed is too slow, a rough cut will be produced as the arc Operation moves from side to side in search of metal...
CUTMASTER 50+, CUTMASTER 70+ Torch parts: Install the start cartridge and desired tip for the operation into the torch head. Shield Cup, Cutting Tip, Electrode and Start Cartridge Hand tighten the shield cup assembly until it is seated on the torch head. If resistance is felt when installing the cup, NOTE! check the threads before proceeding...
CUTMASTER 50+, CUTMASTER 70+ Cut Surface Large O-Ring Small O-Ring Torch Head The desired or specified condition (smooth or rough) of the face of the cut. Electrode Nitride Build - Up Nitride deposits can be left on the surface Start Cartridge of the cut when nitrogen is present in the plasma gas stream.
CUTMASTER 50+, CUTMASTER 70+ To make a square - edged cut along an inside CAUTION diameter of a circle, the torch should move Sparks from the cutting process can cause counterclockwise around the circle. To keep damage to coated, painted, and other surfaces the square edge along an outside diameter such as glass, plastic and metal.
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CUTMASTER 50+, CUTMASTER 70+ of the workpiece at the point where Trigger the cut is to start. For standoff cutting, hold the torch 1/8 - 3/8 in (3-9 mm) from the workpiece as shown below. Trigger Release Torch Art # A-03383 Shield Cup Cut as usual.
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CUTMASTER 50+, CUTMASTER 70+ WARNING The straight edge must be non - conductive. Trigger Trigger Release A-02986 Non-Conductive Straight Edge Bring the torch within transfer distance Cutting Guide to the work. The main arc will transfer to the work, and the pilot arc will shut OFF. A-03539 NOTE! Using Drag Shield Cup With Straight Edge...
CUTMASTER 50+, CUTMASTER 70+ near the back end for maximum heat Cutting speed depends on material, thickness, protection. Choose the technique that and the operator’s ability to accurately follow the feels most comfortable and allows good desired cut line. The following factors may have control and movement.
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CUTMASTER 50+, CUTMASTER 70+ Current Setting Current settings depend on torch travel speed, mode of operation (hand or machine torch), and the amount of material to be removed. Lead Angle The angle between the torch and workpiece depends on the output current setting and torch travel speed.
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CUTMASTER 50+, CUTMASTER 70+ 4T.08 Recommended Cutting Speeds for Machine and Automated Torches With Exposed Tip Torch With Exposed Tip Type Material: Mild Steel Type Plasma Gas: Air Type Secondary Gas: Single Gas Torch Plasma Gas Thickness Output Amperage Speed (Per Minute) Standoff Flow (CFH) Pierce...
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CUTMASTER 50+, CUTMASTER 70+ Torch With Exposed Tip Type Material: Mild Steel Type Plasma Gas: Air Type Secondary Gas: Single Gas Torch Plasma Gas Thickness Output Amperage Speed (Per Minute) Standoff Flow (CFH) Pierce Pierce Height Pressure Inches (Cat. No.) Volts (VDC) (Amps) Inches...
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CUTMASTER 50+, CUTMASTER 70+ Torch With Exposed Tip Type Material: Mild Steel Type Plasma Gas: Air Type Secondary Gas: Single Gas Torch Plasma Gas Thickness Output Amperage Speed (Per Minute) Standoff Flow (CFH) Pierce Pierce Height Pressure Inches (Cat. No.) Volts (VDC) (Amps) Inches...
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CUTMASTER 50+, CUTMASTER 70+ 4T.09 Recommended Cutting Speeds for Machine and Automated Torches With Shielded Tip Torch With Shielded Tip Type Material: Mild Steel Type Plasma Gas: Air Type Secondary Gas: Single Gas Torch Plasma Gas Thickness Output Amperage Speed (Per Minute) Standoff Flow (CFH) Pierce...
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CUTMASTER 50+, CUTMASTER 70+ Torch With Shielded Tip Type Material: Mild Steel Type Plasma Gas: Air Type Secondary Gas: Single Gas Torch Plasma Gas Thickness Output Amperage Speed (Per Minute) Standoff Flow (CFH) Pierce Pierce Height Pressure Inches (Cat. No.) Volts (VDC) (Amps) Inches...
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CUTMASTER 50+, CUTMASTER 70+ Torch With Shielded Tip Type Material: Mild Steel Type Plasma Gas: Air Type Secondary Gas: Single Gas Torch Plasma Gas Thickness Output Amperage Speed (Per Minute) Standoff Flow (CFH) Pierce Pierce Height Pressure Inches (Cat. No.) Volts (VDC) (Amps) Inches...
CUTMASTER 50+, CUTMASTER 70+ SECTION 5 SYSTEM: SERVICE 5.01 General Maintenance Maintain more often Warning! if used under severe Disconnect input power before maintaining. conditions Each Use Visual check of torch tip and electrode Weekly Visually inspect the cables and leads. Replace as needed Visually inspect the torch body, consumables and Quick Connect...
CUTMASTER 50+, CUTMASTER 70+ Six Months or Every 720 Cutting Hours: Check cables and hoses for leaks or cracks, replace if necessary. CAUTION Do not blow air into the power supply during cleaning. Blowing air into the unit can cause metal particles to interfere with sensitive electrical components and cause damage to the unit.
CUTMASTER 50+, CUTMASTER 70+ 5.04 Basic Troubleshooting Guide WARNING There are extremely dangerous voltage and power levels present inside this unit. Do not attempt to diagnose or repair unless you have had training in power electronics measurement and troubleshooting techniques. Problem - Possible Cause Recommended Action...
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CUTMASTER 50+, CUTMASTER 70+ Problem - Possible Cause Recommended Action Symptom Input voltage 1. Primary input voltage problem. The 1. Have qualified person check primary voltage to insure it meets unit communication input voltage is under AC340V, or above requirements see Section "2.05 or 2.08 Input Wiring Specifications". screen AC460V (CE &...
CUTMASTER 50+, CUTMASTER 70+ 5.05 Power Supply Basic Parts Replacement Optional Single-Stage Filter Element Replacement These instructions apply to power supplies where the optional Single-Stage Filter has been installed. The Power Supply shuts down automatically when the Filter Element becomes completely saturated. The Filter Element can be removed from its housing, dried, and reused.
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CUTMASTER 50+, CUTMASTER 70+ This Page Intentionally Blank SERVICE 0700 402 229...
CUTMASTER 50+, CUTMASTER 70+ SECTION 5 TORCH: SERVICE 5T.01 General Maintenance Upper Groove with Vent Holes NOTE! Must Remain Open Refer to Previous “Section 5: System” for com- mon and fault indicator descriptions. Upper O-Ring in Correct Groove Cleaning Torch Threads Lower O-Ring Art # A-03725...
CUTMASTER 50+, CUTMASTER 70+ 5T.02 Inspection and Replacement of Remove the tip. Check for excessive wear (indicated by an elongated or Consumable Torch Parts oversized orifice). Clean or replace the tip if necessary. WARNING Worn Tip Good Tip Disconnect primary power to the system before disassembling the torch or torch leads.
CUTMASTER 50+, CUTMASTER 70+ APPENDIX 1: DATA TAG INFORMATION Manufacturer's Name and/or Logo, Location Production Code Serial Number Type of Power Supply (Note 1) Regulatory Standard Covering This Type of Power Supply Rated Supply Output Range (Amperage/ Output Current Type Voltage) Plasma Cutting Symbol...
CUTMASTER 50+, CUTMASTER 70+ APPENDIX 3: TORCH CONNECTION DIAGRAMS Hand Torch Connection Diagram Torch: SL60 Leads: Torch Leads with ATC Connector Power Supply: CM70+ Male ATC Leads ATC Female Connector Receptacle Power Torch Supply Torch Head Leads Black To Power Supply Switch Circuitry Orange...
CUTMASTER 50+, CUTMASTER 70+ APPENDIX 4: RAW ARC VOLTAGE If raw arc voltage is necessary for the torch height control, the customer must supply an 18 AWG (1.0mm ), single pair, unshielded cable rated for 400V or greater. All work must be performed following applicable local and national codes.