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Product Overview

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The JT-200D and 315D are a series of digital controlled AC/
DC  pulsed  TIG/MMA  inverter  welding  machines  with 
excellent  performance  and  utilising  advanced  technology 
system.  They  It  have  various  AC/DC  modes  such  as  AC 
square-wave TIG, AC pulsed TIG, DC TIG, DC pulsed TIG, 
AC  MMA  (SMAW),  DC  MMA  (SMA,  TIG  spot  welding  (DC, 
pulsed or AC), and composite waveform TIG, etc., and can 
be  widely  used  in  high  quality  welding  of  a  wide  range  of 
materials.

The design uses both advanced and mature technologies to 
ensure reliability and extended machine life. 

Key features

Advanced digital control

The  machines  adopt  advanced  MUC  intelligent  digital 
control  technology,  and  all  the  major  functions  are 
performed through the software. It is this digital control that 
provides  a  much  improved  performance  when  compared 
with the traditional welding machines.

Advanced inverter technology

The  primary  inverter  frequency  is  100  KHz,  which  greatly 
reduces  the  volume  and  weight  of  the  welder.  The  great 
reduction  in  magnetic  and  resistance  loss  obviously 
enhances  the  transformer  e

ciency  and  energy  saving 

e

ect. The working frequency is beyond audio range, which 

almost eliminates the noise pollution.

Automatic protection functions

When  the  mains  voltage  fluctuates  sharply,  the  welding 
machine  will  automatically  stop  working  with  the  fault 
information displayed, and it will automatically recover after 
the mains voltage turns stable. In the case of over current or 
overheating,  the  machine  will  stop  working  automatically 
with  the  fault  information  displayed.  Such  protection 
functions greatly increase the lifespan of the machine.

Excellent consistency and stable performance

The  machines  adopt  intelligent  digital  control,  so  it  is  not 
sensitive to the change of parameters of components. That 

is,the performance of welding machine will not be a

ected 

by the change of the parameters of certain components. It 
can  also  compensate  for  any  change  of  the  working 
environment  such  as  temperature  and  humidity,  etc. 
Therefore, the consistency and stability of the digital control 
welder is better than that of traditional welder.

Parameters are easy to adjust and software easy to update

The  control  of  parameters  for  a  welding  machine  with 
intelligent digital control is much easier and more accurate, 
because  its  main  functions  are  achieved  through  software. 
To change the a function or some of the parameters, you do 
not need to change the circuit, and the only thing you have 
to do is to download the updated software.

User-friendly interface

This  machine  adopts  international  standard  graphic 
language  interface,  which  is  simple,  clear,  intelligible,  and 
convenient for users’ operation.

Practical welding process management function

The machine allows users to divide the welding parameters 
into  five  groups,  according  to  di

erent  techniques  during 

operation, each of which can complete a particular welding 
task. It undoubtedly facilitates the technical standardisation 
management in welding production.

High-quality MMA welding

MMA welding performance is significantly improved with an 
excellent  control  algorithm:  easier  to  ignite  arc,  stable 
welding  current,  little  spatter,  no  electrode  sticking,  good 
shaping,  and  adaptable  to  the  change  of  length  or  section 
of welding cable.

High-quality TIG welding

Improved  digital  technology  for  constant  current  ensures 
the low noise and a high stability of arc quality as well. The 
mature  control  algorithm  provides  users  with  a  convenient 
and practical approach to control the current. Totally 20 TIG 
operation modes, including the typical 2T/4T, and 4 of them 

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Summary of Contents for 315P AC/DC Digital

Page 1: ...cleaning width Remote control interface AC function for aluminium and aluminium alloys DC TIG function for carbon steel copper and non ferrous metals Smooth arc and stable welding performance Integrat...

Page 2: ...Operator Manual www jasic co uk TIG Series TIG 200P AC DC Digital JT 200D TIG 315P AC DC Digital JT 315D...

Page 3: ...pplier of equipment in the UK and our products are supported by our extensive service network Call your distributor in the unlikely event of a problem occurring Please record below the details from yo...

Page 4: ...e protection Insulate yourself from work and ground using dry insulating mats or covers big enough to prevent any physical contact with the work ground Never touch the electrode if you are in contact...

Page 5: ...an may cut fingers and hands and snag garments Protections and coverings may be removed for maintenance and controls only by qualified personnel after first disconnecting the power supply cable Replac...

Page 6: ...etwork at the public network connection point must be applied to these systems In this case the installer or the user is responsible for ensuring the equipment can be connected consulting the electric...

Page 7: ...igent digital control so it is not sensitive to the change of parameters of components That is the performance of welding machine will not be a ected by the change of the parameters of certain compone...

Page 8: ...cation protocol Available as a special order Perfect automatic recording function All data such as cumulative start up times cumulative running time cumulative welding time cumulative TIG welding time...

Page 9: ...range MMA A DC 10 200 AC 20 200 DC 10 300 AC 20 300 Arc force current range MMA A 0 100 0 100 Initial current range A DC 10 200 AC 20 200 DC 10 320 AC 20 250 Peak current range A DC 10 205 AC 30 205...

Page 10: ...ch connector 5 Remote control connector 6 Positive power connector 7 Mains switch 8 Adjustment control Front view JT 315D 1 Control panel 2 Negative output socket 3 Torch gas connector 4 Torch switch...

Page 11: ...Data plate 10 Power cable input 11 Shield gas input connector 12 Serial number Rear View JT 315D 9 Data plate 10 Power cable input 11 Water input connector 12 Shield gas input connector 13 Serial numb...

Page 12: ...arameters and users may perform welding conveniently with these parameters C The digital meter displays the software version after the machine is started and displays the pre set current 2 seconds lat...

Page 13: ...least to avoid arc breaking due to overly low current and should not be higher than the pre set current The foot control is e ective only in TIG mode 1 Pre flow time 7 Pilot arc current 2 Initial cur...

Page 14: ...ilable for this machine Concept hints Parameter group 5 parameter groups 1 5 are available for users to save the welding parameters based on a welding application and all parameters in all the six wel...

Page 15: ...erally 1 5 3 times the welding current and the arc ignition time is 0 02 0 05s When in low current ignition mode the arc ignition current is generally 0 2 0 5 times the welding current and the arc ign...

Page 16: ...ng it will lead to a waste of shield gas if it is too short it will result in the oxidation of weld bead and electrode When in AC TIG or for special materials the time should be longer Upslope time tr...

Page 17: ...between 10 and 90 TIG spot welding Select TIG operation mode 1 and TIG spot welding function can be achieved Spot welding is available in all the four TIG welding modes Please note that the spot weld...

Page 18: ...de no Operation Torch trigger operation and current curve 0 Follow mode Push the torch trigger arc is ignited and current rises to the pre set value Release it arc stops 1 1T Spot welding mode Push th...

Page 19: ...again and then turn to If push the torch trigger and release it at once arc will stop 7 Cycle single operation mode with initial current Push the torch trigger arc is ignited and current reaches the i...

Page 20: ...se it current drops to pilot arc current value Push it again arc stops 13 Double operation 3T mode Push the torch trigger arc is ignited and current rises gradually The torch trigger can be released a...

Page 21: ...t again current rises to the preset value and then turn to If push the torch trigger and release it at once or release the torch trigger and push it at once arc will stop Note Preset value is the peak...

Page 22: ...connected to the negative terminal and the work return to the positive terminal MMA welding DC Insert the cable plug with electrode holder into the socket on the front panel of the welding machine and...

Page 23: ...ding to the relevant content in this manual and TIG welding can be carried out The arc ignition mode of this machine is non contact arc ignition During welding the parameter display meter displays the...

Page 24: ...o before opening the case NOTE When the inverter welder is powered on defective components may explode or lead to explosion of other components Wear face guard and long sleeved clothing when maintain...

Page 25: ...th a higher rated current holder MMA Arc is easy to break Arc breaking voltage is too low Increase the arc breaking voltage TIG There is no current output when pushing the torch trigger Welding can be...

Page 26: ...o the power cord which is connected to other electric appliances of serious interference Other malfunction Other malfunction Contact the service centre Type Alarm Automatic response Cause Solution Ove...

Page 27: ...Electrical schematic 7 25...

Page 28: ...Parts list 8 JT 200D 26...

Page 29: ...0040578 Top board 15 10022057 Fan 32 10038699 Central board 16 10016389 Connector for water 33 10020826 Power line 17 10021912 Line button 27 No Part no Description No Part no Description 1 10014869 F...

Page 30: ...JT 315D 28...

Page 31: ...JT 200D JT 315D DIGITAL AC DC PULSE TIG MMA WELDING MACHINE Order code JT 200D JT 315D Wilkinson Star Limited Issue 1 January 2014 Product is subject to change without notice xxix...

Page 32: ...rigger and release it at once Release the torch trigger and push it at once Push the torch trigger twice within 0 5s or Release the torch trigger twice within 0 5s or These are the general description...

Page 33: ...ration stipulations 100 codes are classified and explained in Attached Table 2 based on their functions and characteristics and users should fully understand all those For welding machine operation mo...

Page 34: ...s 100 kinds of operation codes are available for this machine there is more than one code sequence to achieve the specific operation function and users only need to choose one of them It should be str...

Page 35: ...ode with initial current 8 Inner timing operation mode 9 Outer timing operation mode 10 Cycle double operation mode without initial current 11 Cycle double operation mode with initial current 12 Singl...

Page 36: ...quartic operation stop arc 9X Immediate transfer code X 0 Turn to next step X 0 Turn to Step X X 0 9 The definition of order X The definition of order X The definition of order X The definition of or...

Page 37: ...d you can press the parameter display selecting key and the operation mode LED flashes This means you have entered into code editing state Code no selecting and code content editing After you enter in...

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