Subscribe to Our Youtube Channel
Related Manuals for Taurus TIG-300PI AC/DC
Summary of Contents for Taurus TIG-300PI AC/DC
- Page 1 Digital Inverter AC/DC Pulse TIG Welding Machine TIG-300PI AC/DC Operation Manual Read this manual carefully before installing, operating and maintaining the machine.
- Page 2 Description: This machine is designed and built to weld ferrous and non-ferrous 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.
-
Page 3: Table Of Contents
CONTENTS Safety Precautions ---------------------------------------------------------- 3 Warnings ----------------------------------------------------------------------- 4 Packaging and Transportation -------------------------------------------------- 7 Parameters -------------------------------------------------------------------------- 8 Product Description --------------------------------------------------------------- 8 Working Principle ------------------------------------------------------------------ 13 Installation and Wiring ------------------------------------------------------------ 14 Brief Procedure for Welding Operation --------------------------------------- 17 Maintenance ------------------------------------------------------------------------ 22 Common Machine Malfunctions and Solutions ---------------------------- 23 - 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. 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. Welders should minimise the possibility of electromagnetic field damage through the following methods.
-
Page 8: Packaging And Transportation
Gas cylinders should be kept away from extreme temperatures and fire sources. Scratching on cylinder walls with hard objects should be avoided. A flowmeter 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 fittings should be tested for leaks. -
Page 9: Parameters
Parameters TIG-300PI AC/DC Model Value Item 3PH---AC380V±15% 50/60Hz Rated input voltage 12.0KVA Rated input power : 16.5A Rated input current : Rated duty cycle : 10A~300A(TIG) / 20A~250A(MMA) Output current range : Open circuit voltage : 0.5Hz-100Hz Pulse frequency ：... - Page 10 suitable for welding. The advanced inverter technology allows for the construction of a smaller volume and light-weight, stable and reliable transformer with a 30% improved efficiency. Added to the advantages of the inverted power supply, the machine has good dynamic characteristics and performance, offers a stable arc and good quality welding as well as ease of control.
- Page 11 Appearance Diagram TIG-300PI AC/DC Panel： Control panel Control cable connection socket: Connects the control cable of the TIG welding torch or the pedal switch. - 10 -...
- Page 12 Gas electric outlet: Connect gas electric plug of the TIG welding torch. Terminal socket - negative pole (-): Connect TIG welding torch. In MMA mode, connect electrode holder cable set in direct current electrode negative way, connect earth clamp cable set in direct current electrode positive way. Remote control line socket: Connects to the remote control box or to the remote pedal switch.
- Page 13 3. TIG Mode Parameter Adjustments 3.1. Pre-Flow Indicates the gas flow prior to arc start. Pre flow duration is adjustable from 0s to 10s. 3.2. Start Amps: Indicates the startup amperage adjustable from 10A to approximately 300A when the trigger is pressed. It serves to preheat the material. 3.3.
-
Page 14: Working Principle
3.8. AC Frequency Not adjustable in DC TIG mode. A low frequency is suited for high-current wide-seam welding, while high frequency is suited for thin sheet and narrow seam welding since it increases the melting speed and force. It is adjustable between 50Hz and 150Hz 3.9. -
Page 15: Installation And Wiring
1.1. A bridge rectifier converts AC to DC; 1.2. After secondary rectification and reactor filtering, output welding current is delivered that meets the welding requirements; 1.3. Controlled by PWM the IGBT inverts the DC to 20KHz AC which is transmitted via a high-frequency transformer;... - Page 16 Model TIG-300PI AC/DC Power supply： AC380V±15% 50/60Hz 3PH Rated input current： 16.5 Input cable： ≥2.5mm Output cable： 35mm Ground cable： ≥4mm 3. Main Power Supply Connection Pay attention to prevent electric shock Wear goggles Take note of the following when the machine is connected to the main power supply: 3.1.
- Page 17 Wiring of three phase AC, 50/60Hz welding machine Item Item Power cord Terminal block Live wire L1 Overcurrent protection device Live wire L2 Live wire L3 Earth wire terminal block Earth wire Electric control box 4. Gas-cylinder Connection Prevent gas Explosion hazard Wear goggles inhalation...
-
Page 18: Brief Procedure For Welding Operation
the back of the welding machine. Gas leakage is not allowed. 4.4. Adjust the flowrate in accordance with the manufacturer's recommendation. Generally, 5 -10 litres/min. Brief Procedure for the welding operation 1. Before Welding 1.1. Wear the necessary welding protection equipment such as helmet, mask, earplugs, protective clothing, gloves, insulating safety shoes. - Page 19 Direct Current Electrode Negative (DCEN): Suitable for acid electrode welding. Direct Current Electrode Positive (DCEP): Suitable for alkaline and cellulose electrode welding. Item Item Welding machine Earth clamp Electrode holder Work piece 3. MMA Welding Procedure 3.1. Securely connect the earth cable and the electrode holder cable. 3.2.
- Page 20 Direct Current Electrode Negative (DCEN): Suitable for acid electrode welding. Direct Current Electrode Positive (DCEP): Suitable for alkaline and cellulose electrode welding. Item Item Welding machine Earth clamp Electrode holder Work piece 4. Guideline Table for TIG Welding Parameters Parameters are bases on the workpiece material. When a workpiece with thickness ≥4.0mm is welded, multi-layer and multi-pass welding is recommended.
- Page 21 2.4～3.2 10～15 12∽15 120～180 2.4～3.2 10～15 12∽15 150～200 14∽18 3.2～4.0 3.2～4.0 12～18 160～220 12.0 3.2～4.0 3.2～4.0 12～18 14∽18 180～240 5. Guideline Table for TIG AC Welding Parameters Parameters are bases on aluminium alloy welding Thickness Diameter of Diameter of Gas flow Amperage （mm）...
- Page 22 7. Possible Welding Deficiencies The following deficiencies are related to situations outside the the electronic circuits and are mostly attributed to accessories, gas and power supply and external circumstances. These can be circumvented by controlling the environmental factors. 7.1. Blackened Welding Spots This phenomenon indicates that the welding spot is oxidised owing to insufficient protection.
-
Page 23: Maintenance
long resulting in intense heating of the tungsten electrode. The duty cycle should be readjusted. 7.6. Oxide Layer on Aluminium Weld. Duty-cycle setting is not long enough and needs readjustment or the secondary inverter is faulty. Maintenance Safe operation of the machine is dependent on regular maintenance and the replacement of worn and defective parts where necessary. -
Page 24: Common Machine Malfunctions And Solutions
Common Machine Malfunctions and Solutions Warning：Machine maintenance and repair must be carried out by qualified technicians. 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 25 Problem Root cause What to do Damaged fly-back Replace fly-back transformer. transformer. Power light is lit, Damaged IGBT. Replace IGBT. digital meter works and fan Replace fast recovery Damaged fast recovery operational, the diodes. diodes. error indicator light Check control circuit is lit.
- Page 26 Problem Root cause What to do Poor contact of arc Fasten the connecting ignition coil primary wire. wire. Oxidation on spark-gap Remove the oxide film Power light is lit, assembly or spark gap and readjust the gap to digital meter works distance too great.
Need help?
Do you have a question about the TIG-300PI AC/DC and is the answer not in the manual?
Questions and answers