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Control Panel

1—Welding mode selecting zone

It is used to select the welding mode. Press the key in this zone to shift the welding mode among “” (AC square-wave 

TIG), “” (AC pulsed TIG), “” (DC TIG), “” (DC pulsed TIG), “” (AC SMAW) and “” (DC SMAW) with the corresponding 

LED lit. However, if the LED flashes, it indicates that welding is being carried out in the corresponding welding mode 

and that re selection cannot be performed.

2—Parameter and alarm display zone

The digital meter is used for displaying the parameters and error codes, and it also displays the software version when 

starting the machine. The details are as below.

A.

"

Generally,  the  digital  meter  displays  the  pre-set  current,  time,  pulse  duration  ratio  and  frequency  with  the 

corresponding  LED  “A  S  %  Hz”  lit.  Parameters  can  be  adjusted  by  turning  the  knob.  The  digital  meter  displays  the 

welding current during welding, and parameters can be adjusted at this time as well. It displays the parameter being 

adjusted, and turns to display the welding current 3s after the adjustment.

B.

"

Press the key “

” in this zone to shift the display of the digital meter among “A S % Hz”, “V”, “” and “MEMORY” 

with  the  corresponding  LED  lit.  “V”  indicates  the  output  voltage;  “”  is  used  for  selecting  the  operation  mode  of  TIG 

welding 

“MEMORY” can store 5 groups of parameters, 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 later.

D. In  normal  condition,  all  alarm  LEDs  are  off.  In  case  of  any  error,  the  corresponding  LED  will  illuminate,  and  the 

digital meter will display the corresponding error code.

When  the  “OC”  LED  illuminates  and  the  digital  meter  displays  “E-0”  or  “E-1”,  it  indicates  that  over  current  occurs. 

Restart the machine, and welding can be continued.

When the “LV/OV” LED illuminates and the digital meter displays “E-2”, it indicates that the mains voltage is overly low 

or  that  the  secondary  inverter  drive  power  source  fails.  In  the  former  condition,  welding  can  be  recovered  when  the 

mains voltage goes into normal. In the latter condition, please consult the service department.

When the “OH” LED illuminates and the digital meter displays “E-3” or “E-4”, it indicates that welding is forced to stop 

because the main circuit of the machine is overheated. In this condition, it is unnecessary to turn off the machine, but 

just wait a few minutes, and then welding can be continued.

3—Parameter adjustment knob

It is used to adjust all adjustable parameters.

4—Mains switch

1.  Welding mode selector
2.  Parameter and alarm 

displays

3.  Parameter adjustment 

knob

4.  Mains on off switch
5.  TIG parameter 

selection area

6.  MMA parameter 

selection area

7.  Remote control 

selection

JT-200D panel shown

Summary of Contents for JT-200D

Page 1: ...wilkinsonstar com TIG 200 315 AC DC Digital Series AC DC MMA TIG Welding machine Order code JT 200D JT 315D OPERATOR MANUAL ...

Page 2: ...upplier 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 your product as these will be required for warranty purposes and to ensure you get the correct information should you require assistance or spare parts Date purchased __________________________________...

Page 3: ...ye 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 with the work ground or another electrode from a different machine Do not wrap cables over your body Ensure that you take additional safety precautions when you are welding in electrically hazardous c...

Page 4: ... fan 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 Replace the coverings and protections and close all doors when the intervention is finished and before starting the equipment Take care to avoid getting fingers trapped when loading and feeding wire durin...

Page 5: ...network 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 electricity provider if necessary Materials and their disposal The equipment is manufactured with materials which do not contain any toxic or poisonous materials dangerous to the operator When the equipment ...

Page 6: ...ligent digital control so it is not sensitive to the change of parameters of components That is the performance of welding machine will not be affected 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 ...

Page 7: ...ication 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 accumulative MMA welding time cumulative times of alarm cumulative times of over current cumulative times of overheating cumulative times of under voltage and cumulative times of water cooling alarm...

Page 8: ...t 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 DC 10 320 AC 30 320 Base current range A DC 10 205 AC 30 205 DC 10 320 AC 30 320 Crater current range A DC 10 200 AC 20 200 DC 10 320 AC 20 250 DC pulse frequency range Hz 0 5 200 0 5 200 DC pulse du...

Page 9: ...tch 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 connector 5 Remote control connector 6 Water connection 7 Positive power connector 8 Adjustment control 8 ...

Page 10: ... 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 number 14 Mains switch 9 ...

Page 11: ...parameters 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 later D In normal condition all alarm LEDs are off In case of any error the corresponding LED will illuminate and the digital meter will display the corresponding error code When the OC LED illuminates ...

Page 12: ...t least to avoid arc breaking due to overly low current and should not be higher than the pre set current The foot control is effective only in TIG mode 1 Pre flow time 7 Pilot arc current 2 Initial current 8 Post flow time 3 Upslope time 9 Pulse frequency 4 Base current 10 Pulse duration ratio 5 Peak current 11 AC frequency 6 Downslope time 12 Cathode current 1 Arc ignition current 2 Arc ignition ...

Page 13: ...ailable 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 welding modes can be saved in each parameter group Every time when the machine is turned on the parameter group of last time when the machine is turned off will be used If users do not reselect a differen...

Page 14: ...nerally 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 ignition time is 0 02 0 1s Operation hints Arc ignition modes in MMA Low current arc ignition This can be also called lift soft arc ignition Set the arc ignition current I1 to be a value lower than I2 a...

Page 15: ...long 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 It indicates the time taken for the current to rise from 0 to the pre set value and it should be set according to users technical requirements Downslope time td It indicates the time taken for the ...

Page 16: ...d 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 welding time is 1 10 of the upslope time and that the upslope time is still the pre set value For current change in DC TIG spot welding pulsed TIG spot welding AC TIG spot welding and AC pulsed TIG spot ...

Page 17: ...ode 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 the torch trigger arc is ignited and current rises to the pre set value When the spot welding time is up current drops gradually and arc stops Note Spot welding time is 1 10 of the upslope time 2 Stand...

Page 18: ... 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 initial value Release it current rises gradually Push it again current drops to pilot arc current value and turn to If release the torch trigger and push it at once arc will stop 8 Inner timing operat...

Page 19: ...ase 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 at any time Push the torch trigger and release it at once current drops to pilot arc current value Push it again arc stops 14 Real time waveform control operation mode with initial current intermitten...

Page 20: ...it 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 value pilot arc value is the base value It is programmable 17 Manual pulsed double operation mode Push the torch trigger arc is ignited and current reaches the preset value The torch trigger can be ...

Page 21: ... 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 tighten it clockwise Insert the cable plug of the work return lead into the socket on the front panel of the welding machine and tighten it clockwise If the welding mode is not pointing to DC MMA pr...

Page 22: ...rding 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 welding current and it can display the arc voltage by pressing the key in the parameter display selecting zone Foot control Foot control function is generally used in TIG mode Connect the foot contr...

Page 23: ... off 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 maintaining the inverter welder Wear a grounded antistatic wristband when carrying PCBs and components Store carry and transport PCBs with appropriate antistatic bags or boxes Cut off the power supply of the ...

Page 24: ...ith 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 exited when the torch trigger is pushed in some TIG operation modes Release the torch trigger and try again TIG There is no current output when pushing the torch trigger The welding circuit is not i...

Page 25: ...to 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 Over current Over current LED flashes and there are alarm beeps Cut off the main circuit permanently Load current is too high or over current protection of main power unit occurs Restart the machine If ...

Page 26: ...Electrical schematic 7 25 ...

Page 27: ...Parts list 8 JT 200D 26 ...

Page 28: ...10040578 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 Front Panel 17 10020665 Secondary power transformer 2 10038551 Panel overlay 18 10037776 Secondary inverter driver board 3 10040580 Summary board 19 10005305 Glaze resistor 4 10006803 Electric current...

Page 29: ...JT 315D 28 ...

Page 30: ...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 31: ...trigger 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 descriptions of the operation of the torch trigger In addition descriptions based on operation times are used in this chapter Single operation Push or release the torch trigger Double operation Push and release...

Page 32: ...eration 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 mode is realized by implementing the code sequences one by one Here Attached Figure 1 and Attached Figure 2 show the general steps to implement the code sequences Attached Figure 1 Flow chart of operat...

Page 33: ...as 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 stressed that not all the programming codes can be combined arbitrarily Some code combinations do not make sense and some can achieve some specific functions but against users habit Therefore users shou...

Page 34: ...mode 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 Single operation 3T mode 13 Double operation 3T mode 14 Real time waveform control operation mode with initial current intermittent up down 15 Real time waveform control operation mode without initial cur...

Page 35: ...r 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 order X X 0 Turn to next step X 0 Turn to next step X 0 Turn to next step X 0 Turn to next step X 1 Go to the initial current and turn to next step X 1 Go to the initial current and turn to next step X...

Page 36: ...ed 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 into code editing state the digital meter will display a 3 figure number of which the flashing higher one stands for the operation mode code sequence no and the lower two refer to the code content You ...

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