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THERMACUT EX-TRAFIRE 105HD - User Manual

THERMACUT EX-TRAFIRE 105HD
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Plasma Cutting System
Operating Instructions – EX-5-902-007/N-23446 – CSA
Revision 4, 31
st
January, 2024

Table of Contents

Questions and Answers

  • R
    racheldavisAug 28, 2025
    What causes excess current in THERMACUT EX-TRAFIRE 105HD Welding System?
    • M
      michael44Aug 29, 2025
      If your THERMACUT Welding System is showing excess current, it indicates an inverter overcurrent. Have the output diodes, main transformer, and IGBT on the inverter board checked by an authorized professional.
  • P
    philip86Aug 28, 2025
    What to do if gas doesn't flow in THERMACUT EX-TRAFIRE 105HD Welding System?
    • S
      Shelley HernandezAug 28, 2025
      If gas does not flow when the torch trigger is pressed, or the CNC start signal is switched on for your THERMACUT Welding System, it may be due to a defective gas valve or a missing power supply. Contact your retailer for assistance. Alternatively, the gas valve itself may be defective; in this case, contact your retailer.
  • G
    gutierrezcharlesAug 28, 2025
    What causes output current control issues in THERMACUT EX-TRAFIRE 105HD Welding System?
    • F
      Franklin MckeeAug 28, 2025
      If the output current cannot be controlled on your THERMACUT Welding System, ensure that all cable connections are correctly secured. Attach the work lead clamp to the workpiece in order to allow maximum electrical conduction.
  • Z
    zhaysSep 7, 2025
    What to do if I have connected incorrect cutting torch to THERMACUT Welding System?
    • K
      Kendra ReyesSep 7, 2025
      Verify the proper cutting torch is connected.
  • M
    Michelle RichardsSep 10, 2025
    What causes a THERMACUT Welding System pilot arc to ignite with difficulty and switch off?
    • C
      Caroline MontoyaSep 12, 2025
      If the pilot arc on your THERMACUT Welding System ignites with difficulty and then switches off, consider these causes: * Defective consumables: Check the consumables and replace them if necessary. * Faulty gas flow: Check gas flow settings.
  • A
    April RamirezSep 13, 2025
    What to do if gas does not flow when torch trigger is pressed on THERMACUT Power Supply?
    • B
      Brett BrownSep 14, 2025
      If the THERMACUT Power Supply shows no gas flow when the torch trigger is pressed, the gas valve may be defective or lacking power. Contact your retailer for assistance.
  • A
    alexanderwilsonSep 18, 2025
    What does error code H05 mean on THERMACUT Power Supply?
    • C
      Christine GomezSep 18, 2025
      If the THERMACUT Power Supply displays error code H05, the electrode is not separated from the nozzle during the pilot arc. Check for free movement of the electrode and establish if necessary.
  • A
    Angelica MooneyAug 26, 2025
    How to fix THERMACUT EX-TRAFIRE 105HD when arc does not ignite?
    • S
      Shelley RodriguezAug 26, 2025
      If the arc doesn't ignite when you press the torch trigger or switch on the CNC start signal on your THERMACUT Welding System, first check for a missing nozzle or electrode and ensure the consumable is correctly installed, reinstalling or replacing it if necessary. Then, dismantle all consumables, clean the inside of the cutting torch to remove any dirt or short circuits, and correctly reinstall the consumables. Ensure you are using Thermacut® original consumables. Finally, verify that all consumable parts are correctly installed, not loose, and not defective, reinstalling or replacing them as needed.
  • S
    Sabrina SimpsonAug 26, 2025
    Why is the output current too low on my THERMACUT EX-TRAFIRE 105HD?
    • C
      Christina ScottAug 26, 2025
      If the output current is too low and cannot be controlled on your THERMACUT Welding System, ensure that all cable connections are correctly installed. Remove any contamination or oxidation from the workpiece and the work lead clamp to allow maximum electrical conduction. Decrease the distance between the cutting torch and the workpiece. Verify the correct input voltage according to the identification plate. Check consumables and replace if necessary.
  • L
    Luke WarnerAug 25, 2025
    Why is there no transfer between pilot arc and workpiece in my THERMACUT EX-TRAFIRE 105HD?
    • K
      Kenneth HoodAug 26, 2025
      If there is no transfer between the pilot arc and the workpiece when using your THERMACUT Welding System, it could be due to poor contact between the work lead clamp and the workpiece. Remove any contamination or oxidation from both to ensure maximum electrical conduction. Also, check that the distance between the cutting torch and workpiece isn't too great. Finally, have the work lead checked by a professional, and replace it if necessary.

Summary

Identification

Labeling

Describes product labeling.

Identification Plate

Details the machine's identification plate.

Signs and Symbols Used

Explains symbols and warning classifications.

Classification of Warnings

Details warning categories (Danger, Warning, Caution, Notice).

Safety

Designated Use and Operator Obligations

Defines intended use and operator responsibilities.

Product and Electrical Safety

Safety for product, electrical supply and signs.

Plasma Cutting and PPE Safety

Safety for cutting, PPE, and emergency procedures.

Scope of Delivery

Inspection, Claims, and Returns

Procedures for handling received goods.

Product Description

Assembly and Use

Describes control elements and connections.

Technical Data

Provides detailed technical specifications for single-phase.

Technical Data for Cutting Torches

Specs for specific cutting torches.

Torch Dimensions FHT-EX 105 TTH

Dimensions of a specific torch model.

Torch Dimensions FHT-EX 105 TTM

Dimensions of another torch model.

Torch Dimensions FHT-EX 105 TTSM

Dimensions of a third torch model.

Transport and Positioning

Risk of Injury from Improper Transport

Safety warnings about transport and installation.

Risk of Material Damage from Improper Transport

Warnings about material damage from transport.

Setting up the Power Supply

Connecting Gas Supply

How to connect the gas supply.

Connecting Work Lead

How to connect the work lead.

Connecting Power Supply Cable

Details on connecting the power cable.

Connecting Single-Phase Machine

Specifics for single-phase connection.

Connecting Three-Phase Machine

Specifics for three-phase connection.

Connecting Input Power Plug

How to connect the input power plug.

Generator Connection (Optional)

How to connect to a generator.

Connecting the Cutting Torch

Procedure for connecting the torch.

TCS Latch Assembly Notice

Specific notice about the TCS Latch.

Installing Cutting Torch Gear Rack

Steps for installing the gear rack.

Installing Torch Consumables

Instructions for installing torch consumables.

Electric Shock Warning: Live Parts

Safety warning for live parts.

Operation of the Power Supply

Plasma Arc Ignition Safety

Safety warning about ignition.

Cutting Safety

Safety warning during cutting.

Burn Risk from Flying Sparks

Caution about burns.

Duty Cycle Exceedance Notice

Notice about duty cycle.

LCD Description

Explains the LCD display elements.

Input Plug Unplugging Notice

Notice about unplugging.

Output Current Switching Notice

Notice about current switching.

Setting Parameters via LCD

How to set parameters on the LCD.

Selecting Cutting Mode

How to select cutting modes.

Connecting Work Lead for Operation

How to connect the work lead for operation.

Powering On the Machine

Steps to power on the machine.

Manual Cutting Process

Steps for manual cutting.

Manual Grid Cutting and Gouging

Steps for grid cutting/gouging.

Cutting - Edge Start Procedure

Procedure for edge start cutting.

Piercing Procedure

Procedure for piercing.

Gouging Procedure

Procedure for gouging.

Gouging Parameters Table

Gouging parameters table.

Stopping the Cutting Process

Procedure for stopping cutting.

Decommissioning

Maintenance and Cleaning

Electric Shock Warning: Missing Grounding

Safety warning about grounding.

Electric Shock Warning: Live Parts

Safety warning about live parts.

Electric Shock Warning: Defective Cables

Safety warning about defective cables.

Fire Hazard Caution: Contamination

Caution about fire hazard.

Maintenance and Cleaning Intervals

Schedule for maintenance.

Parts Inspection Guide

Inspection guide for consumables.

Faults and Troubleshooting

Electric Shock Warning: Live Parts (Troubleshooting)

Safety warning for live parts during troubleshooting.

Display Fault Messages

Lists error codes and troubleshooting.

General Faults Table

Lists general faults and troubleshooting.

Disassembly

Electric Shock Warning: Live Parts (Disassembly)

Safety warning for live parts during disassembly.

Disposal

Disposal of Materials

How to dispose of materials.

Disposal of Consumables

How to dispose of consumables.

Packaging Disposal

Information on packaging disposal.

Warranty

Block Diagram

Accessories

FHT-EX 105 TTH Hand Cutting Torch Unit

FHT-EX 105 TTH Consumables for Hand Cutting Torch

FHT-EX 105 TTM Machine Cutting Torch Unit

Machine Cutting Torch Without Gear Rack

Details of this torch unit.

Short Machine Cutting Torch

Details of this torch unit.

FHT-EX 105 TTM Consumables for Machine Cutting Torch

Cut Charts for Mechanized Cutting

85 A Cutting, Shielded, with Compressed Air

Introductory text for 85A chart.

100-105 A Cutting, Shielded, with Compressed Air

Introductory text for 100-105A chart.

40-45 A Cutting, SmoothLine, Shielded, with Compressed Air

Introductory text for 40-45A SmoothLine chart.

Appendix

Connecting the Optional CNC Interface

How to connect the CNC interface.

CNC Interface Signal and Pin Assignment

CNC interface pin assignments.

Setting Voltage Divider DIP Switches

How to set DIP switches.

Enabling External DC Coil

How to enable DC coil.

Enabling External AC Coil

How to enable AC coil.

Enabling Industrially Insulated Module

How to enable insulated module.

THERMACUT EX-TRAFIRE 105HD Specifications

General IconGeneral
Output Current Range20 - 105 A
Insulation ClassH
Max Cutting Thickness32mm (1-1/4")
Protection ClassIP23
Cutting Capacity (Mild Steel)32 mm
Severance Cut (Mild Steel)40 mm
Cutting Capacity (Stainless Steel)25 mm
Air Pressure5.5 bar

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