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■  Welding  Mode

 

                               

                               

     

Crater  Off

Press  and  hold  the  torch  switch,  the  machine  will  open  the  gas  valve  to  start  the  flow  of  the 

shielding  gas  during  the  pre-flow  time  and  then  the  arc  is  started  at  welding  current.  When 

finish  to  weld,  release  the  torch  switch,  then  the  arc  is  off  and  flow  the  gas  during  the  gas 

after-flow  time.

                               

                               

     

Crater  On

Press  and  hold  the  torch  switch,  the  machine  will  open  the  gas  valve  to  start  the  flow  of  the 

shielding  gas  during  the  pre-flow  time  and  the  arc  is  started  at  the  crater  current.  At  this  time 

release  the  torch  switch,  the  output  current  will  be  increased  from  the  crater  current  to  the 

welding  current  during  the  up  slope  time.  When  finish  to  weld,  press  and  hold  the  torch  switch, 

the  output  current  will  be  decreased  from  the  welding  current  to  the  crater  current  during  the 

down  slope  time.  At  this  time  release  the  torch  switch,  the  arc  is  off  and  flow  the  gas  during  the 

after-flow  time.

                               

                               

   

Crater  Repeat

Press  and  hold  the  torch  switch,  the  machine  will  open  the  gas  valve  to  start  the  flow  of  the 

shielding  gas  during  the  pre-flow  time  and  the  arc  is  started  at  the  crater  current.  At  this  time 

release  the  torch  switch,  the  output  current  will  be  increased  from  the  crater  current  to  the 

welding  current  during  the  up  slope  time.  At  this  time  Press  and  hold  the  torch  switch,  the 

output  current  will  be  decreased  to  crater  current  and  then  release  the  torch  switch,  the  output 

current  will  be  increased  to  welding  current.  When  finish  to  weld,  press  and  hold  the  torch 

switch,  the  output  current  will  be  decreased  from  the  welding  current  to  the  crater  current  during 

the  down  slope  time.  At  this  time  just  release  the  torch  from  the  metal  to  be  welded  and  then 

the  arc  is  off  and  flow  the  gas  during  the  after-flow  time.

  Welding  current

  Start  current

  Crater  current

  Up  slope  time

  Down  slope  time

  Gas  pre-flow  time

  Gas  after-flow  time

  Pulse  current

Содержание longrun 350LA

Страница 1: ...INVERTER AC DC TIG WELDER 350LA 500LA 600LA OPERATION MANUAL DO NOT INSTALL OPERATE OR MAINTAIN THIS MACHINE WITHOUT READING THIS MANUAL AND PLEASE ALWAYS THINK BEFORE YOU ACT www worldwel com...

Страница 2: ...00 400 Input Capacity 380V KVA 13 5 7 3 21 7 15 9 25 9 17 8 No Load Voltage V 60 380V 62 380V 60 380V Output Current Range A 10 350 20 200 15 500 20 340 15 600 20 400 Output Voltage rated output V 24...

Страница 3: ...of contact with the work or ground and watch for fire Turn off input power using the disconnect switch at the fuse box before working on the equipment Frequently inspect input power cord for damage o...

Страница 4: ...s or other alternate circuits This can create fire hazards or overheat lifting chains or cables until they fail INSTALLATION The welding machine shall be installed at a place free from the inflammable...

Страница 5: ...moving top cover 220V 380V 440V Output Connection Front of the machine Connect the work cable which is connected to the work clamp to the METAL terminal To connect the TIG torch connect a electrode ca...

Страница 6: ...COOLING Output connection for stick welding Connect the work cable which is connected to the work clamp to the TORCH terminal Connect the electrode cable which is connected to the electrode holder to...

Страница 7: ...ne will not supply power at the output If over heating occurs it will blinking on until the machine has sufficiently cooled by cooling fan or water If the output is disabled by any electrical problems...

Страница 8: ...heat affected zone fewer deformations and reduced chance of cracking and gas entrapment 16 Crater current control It controls the crater current It is important to get the good welding quality 17 Dow...

Страница 9: ...p and ready lamp are On and the cooling fan is running Select AC TIG or DC TIG from AC TIG DC TIG selection switch Start to weld with adjusting the proper welding current Adjust properly the pulse fre...

Страница 10: ...ease the torch switch the arc is off and flow the gas during the after flow time Crater Repeat Press and hold the torch switch the machine will open the gas valve to start the flow of the shielding ga...

Страница 11: ...oke down Reconnect Torch switch connector Replace Torch Replace Control PCB Gas flows continuous at Off position of GAS CHECK switch GAS CHECK switch broke down Torch broke down Control PCB broke down...

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Страница 14: ...E RV24YN 500K 2 22 Selector Switch XK5378 1 23 FAN UF12A23STH M5 120T 2 24 FAN UF15P23BTH M5 150T 1 25 Terminal MJ 175 1 26 Toggle Switch DWT 6210 1 27 InputDiode 6RI 100E 080 1 28 IGBT 200A 600V 2 29...

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Страница 17: ...V1 1 21 VOLUME RV24YN 500K 2 22 Selector Switch XK5378 1 23 FAN 120T 2 24 FAN 150T 1 25 Terminal MJ 175 1 26 Toggle Switch DWT 6210 1 27 InputDiode 6RI 100E 080 1 28 IGBT 200A 600V 2 29 IGBT Drive PC...

Страница 18: ......

Страница 19: ......

Страница 20: ...24YN 500K 2 21 Selector Switch XK5378 1 22 FAN 120T 2 23 FAN 150T 1 24 Terminal MJ 175 1 25 Toggle Switch DWT 6210 1 26 InputDiode 6RI 100E 080 1 27 IGBT 200A 600V 2 28 IGBT Drive PCB WGE 01 2K10 2 29...

Страница 21: ...e information you have recorded above The date number is especially important when identifying the correct replacement parts Complete this form please fax it to our selling agency in your country or u...

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