LOKERMANN GRAND TIG 200 DC PFC MV User Manual Download

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USER MANUAL

INVERTER Based Welding Machines

GRAND

TIG 200

D C P F C M V

IMPORTANT

: Read this OPERATOR MANUAL together

with PRESCRIPTION AND COMPLIANCE MANUAL before

to use this equipment. In case of loss one of two parts

contact immediately your dealer.

Allow the operator to consult this manual.

Summary of Contents for GRAND TIG 200 DC PFC MV

Page 1: ...RAND TIG 200 D C P F C M V IMPORTANT Read this OPERATOR MANUAL together with PRESCRIPTION AND COMPLIANCE MANUAL before to use this equipment In case of loss one of two parts contact immediately your dealer Allow the operator to consult this manual ...

Page 2: ...MMA Welding 3 3 1 Set up installation for MMA Welding 3 3 2 Operation for MMA Welding 3 3 3 MMA Welding trouble shooting 3 4 Installation Operation for TIG Welding 3 4 1 Set up installation for TIG Welding 3 4 2 Operation for TIG Welding 3 4 3 TIP GUN Control 3 4 4 Tig Welding Techniques 3 4 5 Electrodes 3 4 6 TIG Welding trouble shooting 3 5 Operation environment 3 6 Operation Notices 4 MAINTENAN...

Page 3: ...ply system Consideration should be given to shielding the supply cable of permanently installed arc welding equipment in metallic conduit or equivalent Shielding should be electrically continuous throughout its length The shielding should be connected to the welding power source so that good electrical contact is maintained between the conduit and the welding power source enclosure Maintenance of ...

Page 4: ... more than 0 99 Multiple advantages such as energy saving and wider input voltage works with 110V 230V HF mode HF TIG arc ignition system for contamination free and easy arc starting TIG functions Adjustable Up and Down Slope pre gas post gas and all the parameters for the Tig Pulse Welding MMA functions Adjustable arc force and hot start control for greater control and easy of use when MMA weldin...

Page 5: ...igital display HF Lift TIG current down slope and up slope gas post flow Pulse Frequency Intelligent protection over voltage under voltage over current over heat 1 For MMA polarity connection can be chosen according to different electrodes please refer to 3 3 2 For DC TIG DCEP is used normally workpiece connected to positive polarity while torch connected to negative polarity This connection has m...

Page 6: ...G welding the relation between the rated loading voltage U2 and welding current I2 is as follows When I2 600A U2 10 0 04 I2 V When I2 600A U2 34 V Rectify Inverter Medium frequency transformer Medium frequency rectify Hall device Current positive feedback control Three phase AC DC AC DC 380V 50Hz AC DC The letter X stands for Duty Cycle which is defined as the portion of the time a welding machine...

Page 7: ...ator 34 Multi meter display 35 Second time indicator 36 Percentual indicator 37 Hertz frequency indicator Denotes more detailed explanation of function to follow Further Controls Explained Multi Meter display 34 Before welding this displays the setting selected or being adjusted using the control knob 8 During welding it displays welding current The parameter setting displayed is indicated by the ...

Page 8: ...s set to the main welding current 17 Up slope setting indicator 20 When the trigger is activated the welding current will increase gradually over the time selected up to the set main welding current 17 Unit S and setting range 0 10S TIG welding current setting indicator 17 Sets the main welding current Unit A and setting range 5 200A Base current setting indicator 5 Only available when pulse mode ...

Page 9: ...MA welding electrodes will have a minimum voltage they can operate with and still have a stable arc Arc Force control boosts the welding power if its senses the welding voltage is getting too low The higher the arc force adjustment the higher the minimum voltage that the power source will allow This effect will also cause the welding current to increase 0 is Arc Force off 10 is maximum Arc Force T...

Page 10: ...t DCEN Electrode connected to output socket 1 Connect the earth lead to tighten clockwise 2 Connect the earth clamp to the work piece Contact with the work piece must be firm contact with clean bare metal with no corrosion paint or scale at the contact point 3 Connect the electrode lead to tighten clockwise 4 Each machine is equipped with a power cable should be based on the input voltage welding ...

Page 11: ...nnections No power supply Check that the machine is switched on and has a power supply Wrong mode selected Check the MMA selector switch is selected 2 Porosity small cavities or holes resulting from gas pockets in weld metal Arc length too long Shorten the arc length Work piece dirty contaminated or moisture Remove moisture and materials like paint grease oil and dirt including mill scale from bas...

Page 12: ...e input voltage welding power cable connected to the appropriate position not to pick the wrong voltage 10 With the corresponding input power supply terminal or socket good contact and prevent oxidation NOTE Secure the gas cylinder in an upright position by chaining them to a stationary support to prevent falling or tipping 1 According to the above method to install is correct turn the power switc...

Page 13: ...inert gas flow to prevent contamination of the tungsten molten pool and weld area When the TIG arc is struck the inert gas is ionized and superheated changing it s molecular structure which converts it into a plasma stream This plasma stream flowing between the tungsten and the work piece is the TIG arc and can be as hot as 19 000 C It is a very pure and concentrated arc which provides the control...

Page 14: ...angle and move smoothly and evenly along the joint while fusing the materials together TIG Welding with Filler Wire Technique It is necessary in many situations with TIG welding to add a filler wire into the weld pool to build up weld reinforcement and create a strong weld Once the arc is started the torch tungsten is held in place until a weld pool is created a circular movement of the tungsten w...

Page 15: ... more difficult it will be to arc start However increasing the flat to the maximum level that still allows arc start and eliminates arc wonder will improve the weld penetration and increase the electrode life Some welders still grind electrodes to a sharp point which makes arc starting easier However they risk decreased welding performance from melting at the tip and the possibility of the point f...

Page 16: ...ngsten during welding feed the filler wire into th e leading edge of the weld pool in front of the tungsten Tungsten melting into the weld pool Check that correct type of tungsten is being used Too much current for the tungsten size so reduce the amps or change to a larger tungsten 3 Porosity poor weld appearance and colour Wrong gas poor gas flow gas leak Use pure argon Gas is connected check hos...

Page 17: ...mediately If any switch is not flexible or it can t be put correctly in place please replace immediately Please get in touch with maintenance service department if there are no accessories After turn on power watch listen if thearc welding machine has shaking whistle calling or peculiar smell If there is one of the above problems find out the reason and clear it If you can t find out the reason pl...

Page 18: ...tput The welding cable damaged Repair or change it The earth cable connected unstably Check the earth cable The welding cable is too long Use an appropriate welding cable There is oil or dust on the workpiece Check and remove it The distance between tungsten electrode and workpiece is too long Reduce the distance about 3mm There is not spark on the HF igniting board The HF igniting board does not ...

Page 19: ...on always on E09 Over heating Program in default Yellow lamp thermal protection always on Welding machine E10 Phase loss Yellow lamp thermal protection always on E13 Under voltage Yellow lamp thermal protection always on E14 Over voltage Yellow lamp thermal protection always on E15 Over current Yellow lamp thermal protection always on Switch E20 Button fault on operating panel when switch on the m...

Page 20: ...4 4 Electrical schematic drawing ...

Page 21: ...LOKERMANN Srl Via Produzione 16 18 37044 Cologna Veneta VR Italy Tel 39 0442 1722469 lokermann lokermann eu www lokermann eu ...

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