LOKERMANN Grand Tig 400 ACDC Pulse User Manual Download Page 1

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USER MANUAL

INVERTER Based Welding Machines

GRAND

TIG 400

ACDC PULSE

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 400 ACDC Pulse

Page 1: ...RAND TIG 400 ACDC PULSE 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 deal...

Page 2: ...n for MMA Welding 3 3 3 MMA Welding Troubleshooting 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 Remote current control 3...

Page 3: ...ring of the public supply system Consideration should be given to shielding the supply cable of permanently installed arc welding equipment in metallic conduit or equivalent Shielding should be electr...

Page 4: ...monitors the oxide and helps better cleaning during aluminum welding Dual digital display meters for accurate pre setting and feedback of welding parameters output Up Down Button Remote Control on tor...

Page 5: ...current will be cut off It can self protect and prolong the using life Double purposes AC inverter TIG MMA and DC inverter TIG MMA Excellent performance on Aluminium alloy carbon steel stainless steel...

Page 6: ...king principle of GRAND TIG is shown as the following figure Three phase 380V work frequency AC is rectified into DC then is converted to medium frequency AC by inverter device IGBT module after reduc...

Page 7: ...splayed is indicated by the LEDs beside the display Current A Saved Setting JOB Time S Percentage and Frequency Hz If left inactive for several seconds display will revert back to main welding current...

Page 8: ...rent to increase 0 is Arc Force off 10 is maximum Arc Force This is practically useful for electrode types that have a higher operating voltage requirement or joint types that require a short arc leng...

Page 9: ...available in AC welding mode 27 28 29 Adjusts the balance as a percentage between the forward and reverse current cycles when welding in AC output mode The reverse part of the AC cycle gives the clea...

Page 10: ...uired by rotating the control knob Once the program is accessed it will automatically load To return to normal parameter settings press the control knob again which will also load the selected program...

Page 11: ...ead work piece is connected to the negative socket this is known as DCEP However various electrodes require a different polarity for optimum results and careful attention should be paid to the polarit...

Page 12: ...wer 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 pie...

Page 13: ...oltage welding power cable connected to the appropriate position not to pick the wrong voltage NOTE Secure the gas cylinder in an upright position by chaining them to a stationary support to prevent f...

Page 14: ...connected 11 Be shorted with 10 The button of UP DOWN input 12 Not connected Not connected 3 4 4 Tig Welding Techniques TIG Welding Fusion Technique Manual TIG welding is often considered the most dif...

Page 15: ...rare metallic element used for manufacturing TIG welding electrodes The TIG process relies on tungsten s hardness and high temperature resistance to carry the welding current to the arc Tungsten has...

Page 16: ...ssibility of the point falling off into the weld pool Electrode Included Angle Taper DC Welding Tungsten electrodes for DC welding should be ground longitudinally and concentrically with diamond wheel...

Page 17: ...g Check that correct type of tungsten is being used Check the balance control is not set too high on the balance reduce to lower setting 2 Contaminated tungsten Touching tungsten into the weld pool Ke...

Page 18: ...meter on the front panel of the welding power supply flick twice to indicate the synchronization is successful and complete Synchronization has to accomplish in 10s after the display is blank 4 Switc...

Page 19: ...wanders during welding Poor gas flow Check and set the gas flow between 10 15 l min flow rate Incorrect arc length Lower torch so that the tungsten is off of the work piece 2 5mm Tungsten incorrect o...

Page 20: ...arm connection to 20k ohm remote control potentiometer 5 Zero ohm minimum connection to 20k ohm remote control potentiometer 6 Not connected 7 Not connected 8 Trigger Switch Input 9 Trigger Switch Inp...

Page 21: ...e 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 please contact your local service repair station or distributor agen...

Page 22: ...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 w...

Page 23: ...ow lamp thermal protection 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 E11 No water Y...

Page 24: ...4 4 Electrical schematic drawing...

Page 25: ...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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LOKERMANN Grand Tig 400 ACDC Pulse, User Manual

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