CEA MATRIX X220 AC/DC Operator's Manual page 27

TYPE OF IGNITION
WELDING MODE
The following welding modes can be activated as indicated below:
• CONFIGURATION menu
• WELDING section
• 2T-4T AUTO ADV line
• Choose ACTIVE
DESCRIPTION
HF - High frequency arc ignition.
LIFT TIG - "Lift" type arc ignition without high frequency.
HF PERFECT POINT - High frequency arc ignition in "Perfect-Point" mode, which guarantees
perfect centring of the welding point.
DESCRIPTION
2T - TIG 2 touch welding mode.
TIG welding takes place as follows:
When the torch button is pushed welding begins starting with the INITIAL CURRENT (if SLOPE
UP is selected), while when it is released welding ends when the FINAL CURRENT is reached (if
SLOPE DOWN is set).
4T - TIG 4 touch welding mode - STANDARD.
TIG welding takes place as follows:
• When the torch button is pushed welding begins at the INITIAL current.
• When the torch button is released the SLOPE UP process is carried out (if applicable) and the
current returns to the PRINCIPAL value I
• When the torch button is pushed the SLOPE DOWN process is carried out (if applicable) and the
current returns to the FINAL value.
• When the button is released the welding cycle ends.
4T AUTO- TIG 4 touch welding mode - AUTO.
TIG welding takes place as follows:
• Pressing and releasing the torch button, after the arc has ignited, starts the welding until the MAIN
current I1 is reached (if a SLOPE UP is set, this will be carried out).
• Pressing and releasing the torch button carries out the SLOPE DOWN (if set) and welding stops.
CYCLE - TIG welding mode with a cycle function between 2 current levels.
When this function has been activated, TIG welding takes place as follows:
• When the torch button is pushed welding begins at the INITIAL current.
• When the torch button is released the SLOPE UP process is carried out (if applicable) and the
current returns to the PRINCIPAL value I
• When the torch button is pressed and released within less than 1 second the welding current goes
to the CYCLE value ( I ), and by repeating this operating you can move between the two current
2
levels ( I ), ( I
) an infinite number of times.
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• When the torch button is pushed and held down (for longer than 1 second) you exit the cycle, the
SLOPE DOWN process is carried out (if applicable) and the current returns to the FINAL value.
When the torch button is released the welding cycle ends.
SPOT - TIG spot welding that can be used for precise, safe seams with low heat applied.
This can be used by pushing the torch button to spot weld for a pre-set period of time (in seconds) at
the end of which the arc switches off automatically.
Cold TACK - This mode makes it possible to do cold tack welds in rapid sequence, in order to further
amplify the benefits of a single spot.
TIG VALVE TORCH - The welding mode for TIG torch welding with a manual gas valve.
2T ADVANCE - 2-touch ADVANCE welding mode, with the option of setting the initial and final
welding current.
4T AUTO ADVANCE - 4-touch AUTO welding mode, with the option of setting the initial and final
welding current.
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