USER MANUAL
INVERTER Based Welding Machines
GRAND
PIPE 270
M U L T I
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 1: ...RAND PIPE 270 M U L T I 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: ...nt 3 4 Power supply input connection 3 5 Polarity Connection MMA 3 6 Assembling the equipment TIG 4 OPERATION 4 1 Layout for the panel 4 2 Control Panel 4 3 Argon Arc Welding Operation 4 3 1 TIG weldi...
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: ...acters such as stable welding arc low tungsten pole loss more welding current narrow and deep weld 3 DC Pulsed TIG has the following characters 1 Pulse heating Metal in Molten pool has short time on h...
Page 5: ...60 TIG MMA TIG MMA TIG MMA Rated input Power I1max KW 7 5 9 5 7 5 10 2 6 7 9 5 Rated input Current A 19 24 11 15 9 13 Duty Cycle 40 10min 40 270A 60 225A 100 175A 30 250A 60 180A 100 140A 40 270A 60...
Page 6: ...g machines power supply connects to 110V 460V When the power supply voltage is over the safe work voltage there are over voltage and under voltage protection inside the welder the alarm light will on...
Page 7: ...accessory codes When GRAND PIPE 270 MULTI welding machines are operated in HF ignition method the ignition spark can cause interferences in equipment near the welding machine Be sure to take specially...
Page 8: ...dial shown on the display during welding The illustration below shows an overview of the main settings needed for day to day working using the GRAND PIPE 270 MULTI control panel as an example You will...
Page 9: ...been pressed 7 Pulse frequency Unit Hz Setting range 0 5 200 Factory setting Important Only selectable when pulse key has been pressed 8 Downslope time Unit S Setting range 0 0 10 0 Factory setting 9...
Page 10: ...n is turned off the output current is the welding current Iw t4 Repress down the gun switch the output current slopes down to crater current if the output pulse function is turned on the slope down cu...
Page 11: ...the using life of the tungsten electrode and prevent tungsten clipping 3MMA operation if the electrode touches workpiece over two seconds the welding current will drop to the 0 automatically to prote...
Page 12: ...r 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 please co...
Page 13: ...e 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 re...
Page 14: ...5 3 Electrical principle drawing...
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Page 16: ...LOKERMANN Srl Via Produzione 16 18 37044 Cologna Veneta VR Italy Tel 39 0442 1722469 lokermann lokermann eu www lokermann eu...
