CEA MATRIX X220 AC/DC Operator's Manual page 32

1. Main I welding current (if OFF PULSE is set).
1
Peak current (if SLOW PULSE is set).
Depending in the type of AC wave shape selected, for pre-setting and welding, the display will indicate the following current value:
TYPE OF TIG AC WAVE
DYNAMIC TIG
SPEED TIG
COLD TIG
SOFT TIG
2. "Absolute" basic current value in Ampere (default) or as % of the peak current (if SLOW PULSE is set).
3. Duration of the peak current (if SLOW PULSE is set).
4. Duration of the basic current (if SLOW PULSE is set).
5. (When CYCLE is set) "Absolute" I
current when pulsation is set.
When the CYCLE function is active, when the torch button is pressed and released within less than 1 second the welding current goes
to the I CYCLE. value, and by repeating this operating you can switch between the I
2
When the torch button is held down for more than 1 second, you exit the cycle.
This welding mode is especially indicated for welding profiles with different thickness, where continuous current variation is required.
Also, when welding aluminium, it allows you to have a higher initial current, thereby facilitating pre-heating of the workpiece.
6. PRE-GAS duration.
7. "Absolute" initial welding current value in Ampere (default) or as % of the main current for I
pulsation is set.
8.
SLOPE UP duration.
9. SLOPE DOWN duration.
10. "Absolute" final welding current value in Ampere (default) or as % of the main current for I
pulsation is set.
11. POST-GAS duration.
12. Select the diameter of the electrode to achieve the best control of ignition in synergic mode (default).
If the "CONFIGURATION"
Ignition current
Duration of the ignition time
NOTE: If the value of these 2 parameters is too low, this could prejudice ignition.
13. Frequency of the AC welding current.
This controls the frequency for the various wave shapes, for better directional control, reducing the thermally altered area, with great-
er penetration and lower electrode consumption. The high frequency makes it possible to weld very small thicknesses with excel-
lent results, while the low frequency is ideal for welding average thicknesses, or where edge preparation is poor.
MIN 40 Hz
I (A)
t (s)
WELDING CURRENT VALUE
Peak current
Peak current
RMS Current
RMS Current
cycle current value in Ampere (default) or as % of the main current for I
2
menu is used to select manual ignition, you can set:
MAX 250 Hz
I (A)
t (s)
and I . current levels an infinite number of times.
1 2
11
welding, or of the peak
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welding, or of the peak current when
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welding, or of the peak current when
1