GYS TIG 220 DC Mode D'emploi page 21

• TIG DC
This welding mode in direct current (DC) is designed for ferrous metal such as steel, stainless steel or even copper and its alloys.
• TIG DC Pulsed
This pulse welding mode chains high current pulses (I, welding pulse) then low current pulses (I_cold, pulses to cool the piece). This pulse mode
allows to assemble pieces while limiting high temperatures.
Example :
The I welding current is set to a 100A and % (I_cold) = 50%, thus a Cold current of = 50% x 100A = 50A. F(Hz) is set to 10Hz, the signal period
will be 1/10Hz = 100ms.
Every 100ms, a 100A pulse then a 50A pulse will succeeed each other.
The choice of frequency
- If welding with TIG electrodes, then F(Hz) synchronised to the gesture,
- If thin plate without TIG electrodes (< 8/10 mm), F(Hz) >> 10Hz
- If special metal requiring a welding pool sweep for degasing, then F(Hz) >> 100Hz
• Tack weld feature SPOT
• TIG DC - Advanced menu
The Start and Stop stages of the welding cycle can be set.
START
By scrolling the wheel, the following advanced settings can be accessed:
Parameter Description
I_Start step current at welding start
T_Start time of the welding start stage
I_Stop stop welding stage current
T_Stop time of welding stop stage
The parameter to be modified is selected by pressing the «JOB» button. Once the modification has been made with the central wheel (I), it is validated
by pressing the «JOB» button.
The exit of the advanced menu is done by validation «ESC».
SELECT STRIKING MODE
HF TIG: High Frequency start without contact
TIG LIFT : Contact start (for environments sensitive to HF disturbances).
Touch Switch
Pré Gaz 0.5s
TIG 220 DC / 300 DC
TIG SPOT
The grey areas are not useful for this mode.
To access these advanced parameters, press and hold the «JOB» button for more than 3
seconds until SET and then UP are displayed continuously.
Once the button is released, in the drop-down menu, go to «SET» using the central
wheel and validate by pressing the «JOB» button».
STOP
Lift
1- Touch the work-piece with the electrode
2- Press the trigger on the torch
3- Pull back the torch to lift the electrode.
<1s
Setting
10% - 200%
0s - 10s
10% - 100%
0s - 10s
EN
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