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Summary of Contents for Taurus CUT-40D AIR
- Page 1 Air plasma cutting machine with built-in air compressor Model: CUT-40D AIR Operation Manual Read this manual carefully before installing, operating and maintaining the machine. - 1 -...
- Page 2 Description: This machine is used to cut ferrous or nonferrous metals. Disclaimer: The information, illustrations and instructions described in this manual are based on the latest product information available at the time of publication. The manufacturer and distributors reserve the right to modify the contents of this manual at any time.
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Page 3: Table Of Contents
CONTENTS Safety Precautions ................. 3 Warnings ..................4 Packaging and Transportation ............... 7 Parameters ..................... 8 Product Description ................8 Working Principle .................. 11 Installation and Wiring ................12 Brief Procedure for Cutting Operation ..........14 Maintenance ..................18 Common Machine Malfunctions and Solutions ........19 - 2 -... -
Page 4: Safety Precautions
Safety Precautions The equipment is designed for use by qualified personnel who have completed professional training and have obtained a qualification certificate as a welder/cutter. The operator shall have sufficient professional knowledge of welding, cutting and circuitry. The machine should be operated only after having read and fully understood all the safety precautions and warnings contained in this manual and those generally applicable to welding operations. -
Page 5: Warnings
Warnings Welding and cutting operations are specialised operations which present a certain degree of risk. Professional training, correct operating procedures and protective measures reduce the accident risk and damage to equipment. Personal Safety Protection Welding and cutting operations generate noise, bright light and high-temperature sparks which will cause harm to human hearing, eyes and skin unless personal protective measures are implemented and proper operational instructions are adhered to. - Page 6 Welding and cutting on sealed gas tanks will cause explosions. These operations are prohibited. Welding and cutting areas must be provided with adequate fire extinguishing equipment. Regular testing for efficiency of this equipment is compulsory as is training of staff in the use of the equipment. Once the welding/cutting operation is completed, check for any high temperature spark or metal which might cause a fire and immediately dispose of it.
- Page 7 However, it would be wise to limit exposure to EMF as far as possible and the following procedures are suggested: Welders and cutters with cardiac pacemaker implants should obtain medical advice on the effects of EMF on the implant. Cutters should minimise the possibility of electromagnetic field damage through the following methods.
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Page 8: Packaging And Transportation
sources. Scratching on cylinder walls with hard objects should be avoided. A pressure regulator should be installed on the gas cylinder in use in accordance with the manufacturer's operating instructions. Quick-coupling connectors must not be used and gas hose fitting should be tested for leaks. Gas cylinders must always be kept upright and chained or belted to a cylinder trolley, base, wall, post or shelf. -
Page 9: Parameters
20.0/22.0 Product Description The CUT-40D AIR plasma cutting machine inverts 50Hz power supply to a high- frequency, high-voltage power supply of up to 20KHz. The inversion process is facilitated by a powerful IGBT device followed by step-down rectification and pulse- width modulation (PWM) technology producing a high-power DC output suitable for cutting. - Page 10 cut seam is produced with less effort and low deformation. The machine is suitable for use in the manufacturing industry, installation and maintenance, plate cutting, cutting holes, patching, beveling, pipe cutting and various other metal cutting applications. The machines in this series are manufactured in accordance with IEC60974-1<Arc Welding Equipment-Part 1: Welding Power Sources>, Safety Requirements for Arc Welding Equipment.
- Page 11 2. Appearance Diagram: CUT- 40D AIR Panel: 1 Control panel Cutting torch control socket: Connects the control line of the cutting torch switch. Air and electric hybrid socket: Connects to the air and electric plug to the cutting torch. 4 Current adjustment knob: Regulates the cutting current output. 5 Pilot arc terminal block: Connects to the pilot arc line of the cutting torch.
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Page 12: Working Principle
External & internal air selection button: Alternate selection activates the external or internal indicator light showing the compressed air source. Gas check & cut selection button: When the 'AIR’ mode is selected, air is ejected from the torch head and it is determined automatically whether the air volume is sufficient to ensure a smooth cutting process. -
Page 13: Installation And Wiring
1.1. A bridge rectifier converts AC to DC; 1.2. Controlled by PWM, the IGBT inverts the DC to 33Khz AC and transmits it through a high-frequency transformer; 1.3. After secondary rectification the output cutting current is sufficient to meet the cutting requirements;... - Page 14 3. Main Power Supply Connection Pay attention to prevent Wear goggles electric shock Warning: Take note of the following when the cutting machine is connected to the main power supply: 3.1. The connection must be carried out by a qualified electrician or technician. 3.2.
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Page 15: Brief Procedure For Cutting Operation
Item Item Power cord Overcurrent protection device Live wire L Neutral wire N Earth wire terminal block Earth wire Electric control box Terminal block Brief Procedure for Cutting Operation 1. Before Cutting 1.1. Wear the necessary and approved personal protective equipment (PPE) required for the task: Such as helmet, mask, goggles, earplugs, protective clothing, gloves and insulating shoes. - Page 16 2.7. Schematic Diagram without an External Compressor: Item Item Cutting power supply Earth clamp Torch Workpiece 3. Cutting Procedure Using an External Air Supply: 3.1. Activate the compressor selection switch and select 'External Air'. 3.2. Connect the external air supply to the rear inlet on the machine. Secure a leak- proof fit and ensure the sufficiency of flow rate and pressure of dry air.
- Page 17 operation the cutting parameters can be adjusted to suit the situational demands. 3.8. After completion of the cutting operation, turn off the power using the switch on the rear panel of the machine. Then switch off the power at the main distribution box.
- Page 18 the surface. The best cutting results are obtained by keeping below the maximum allowable speeds. If the cutting speed is too fast, the jet will not be able to melt and eject the molten material from the workpiece. Instead, some of the molted material may be directed towards the nozzle resulting in equipment damage.
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Page 19: Maintenance
6. Setting Current Parameters The cutting current is dictated by the thickness of material to be cut and is adjusted by the current adjustment knob. When an external air source is used, the air pressure needs to be adjusted to the cutting current. -
Page 20: Common Machine Malfunctions And Solutions
Common Machine Malfunctions and Solutions Warning：Machine maintenance and repair must be carried out by qualified technical individuals. The operating voltage in the machine can be up to 600V and it is important that power be cut at the machine and at the control box before covers are removed and repairs carried out. - Page 21 3. Common Machine Problems and Troubleshooting: Problem Root Cause What to do Power supply switch turned Check or replace the off or damaged. power switch Phase-loss on power Check power input if The ''machine-on'' supply. phase loss light not active. No Power grid down.
- Page 22 Problem Root Cause What to do Arc ignition coil primary wire Fasten the connecting The ''machine-on'' has poor contact. wire. light is lit. Digital Polish the oxide film on display meter Oxidation of spark gap or spark gap surface or functional and fan spark gap too great.
- Page 23 Problem Root Cause What to do Shut off the machine and Over-current protection. reboot. The ''machine light'' Auto-recovery after 5 to is lit. Digital display Overheating protection. 10 minutes. and fan operational. Overheating and Failure of inverter circuit Replace IGBT tube. over-current lights Secondary rectifier Replace the same type of...
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