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 26: ...Electrical schematic 7 25 ...
Page 27: ...Parts list 8 JT 200D 26 ...
Page 29: ...JT 315D 28 ...