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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

  • D
    denise07Sep 5, 2025
    What should I do if the switch is set to ON, but the LCD does not illuminate on my THERMACUT EX-TRAFIRE 105HD Welding System?
    • L
      Laura McclainSep 5, 2025
      If the LCD doesn't illuminate when the switch is ON, check the input power voltage. Also, make sure the power cable is properly connected to the socket. If these steps don't resolve the issue, the switch may be defective and must be replaced by a certified electrician or trained personnel.
  • D
    Daniel JohnsonSep 5, 2025
    What to do if gas does not flow when the torch trigger is pressed or the CNC start signal is switched on in my THERMACUT Welding System?
    • C
      Carlos WilliamsSep 5, 2025
      If gas isn't flowing, connect the hose to the gas valve and tighten it correctly. If the issue persists, the gas valve may be defective, and you should contact your retailer.
  • A
    Angelica MillsSep 4, 2025
    What to do if the voltage of PFC is incorrect in THERMACUT Welding System?
    • A
      Amber MosleySep 4, 2025
      Check if the PFC IGBT is damaged.
  • E
    Erik BartlettAug 25, 2025
    How to improve cutting quality with THERMACUT Welding System?
    • B
      bcunninghamAug 25, 2025
      If you're experiencing poor cutting quality with your THERMACUT Welding System, first, adjust the output current to match the thickness of the workpiece. Inspect the cutting torch consumables, replacing them if they're defective. Ensure the output current strength is adjusted to the speed at which the cutting torch is pulled and the thickness of the workpiece and verify the distance between the cutting torch and workpiece. Also, remove any contamination or oxidation from the workpiece and work lead clamp, ensuring maximum electrical conduction by properly attaching the work lead clamp.
  • N
    Nicholas JonesSep 3, 2025
    What causes excess temperature in THERMACUT EX-TRAFIRE 105HD and how to fix it?
    • N
      Nathan MontgomerySep 4, 2025
      Excess temperature in your THERMACUT Welding System can be caused by several factors. Ensure the fan is running freely, and if not, consider replacing the fan or fan motor. Allow the power supply to cool down if the duty cycle has been exceeded, and avoid exceeding it in the future. Verify sufficient space around the power supply for ventilation. If components are defective, contact service or your retailer.
  • W
    wilsonvalerieSep 3, 2025
    What to do if output current cannot be controlled on my THERMACUT EX-TRAFIRE 105HD?
    • M
      Margaret HillSep 3, 2025
      If the output current cannot be controlled, ensure that all cable connections are properly secured and attach the work lead clamp to the workpiece to allow maximum electrical conduction.
  • F
    Felicia MoralesSep 2, 2025
    What to do if there is no transfer between pilot arc and workpiece on my THERMACUT EX-TRAFIRE 105HD?
    • G
      gonzalezrobertSep 3, 2025
      If there's no transfer between the pilot arc and the workpiece, remove any contamination or oxidation from the workpiece and the work lead clamp and attach the work lead clamp to the workpiece to allow maximum electrical conduction. Also, decrease the standoff between the cutting torch and the workpiece. If the issue persists, replace the work lead.
  • C
    Craig SimmonsSep 2, 2025
    What to do if output current is too low and cannot be controlled on THERMACUT Welding System?
    • C
      Charles BrownSep 2, 2025
      First, ensure that all cable connections are correctly installed. Remove any contamination or oxidation from the workpiece and the work lead clamp, and attach the clamp to maximize electrical conduction. Decrease the standoff between the cutting torch and workpiece. Verify the correct input voltage according to the identification plate and check consumables, replacing them if necessary.
  • D
    daniel81Sep 2, 2025
    What to do if pilot arc ignites with difficulty and switches off in my THERMACUT Welding System?
    • J
      jstoneSep 2, 2025
      If the pilot arc ignites with difficulty and then switches off, first check the consumables and replace them if necessary. Also, check the gas compressor and supply lines for any faults in gas flow.
  • E
    emartinezSep 1, 2025
    What to do if gas inlet pressure is below 72.5 psi (5 bar) in THERMACUT EX-TRAFIRE 105HD?
    • J
      Jessica CastilloSep 1, 2025
      Check the inlet gas pressure, gas pressure and flow, and verify that the gas settings are correct. If the issue persists, replace the torch cable. If none of these actions resolve the problem, have the pressure switch checked and replaced if necessary by a certified electrician or trained personnel.

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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