0~t1: The machine starts to exhale (pre-gas time) When pressing the torch button.
t1~t2: The machine starts to wire feeding.
t2: The machine starts to weld and the current reach to the rated welding current.
t3~t4: When releasing the torch button, the controller automatically stops the welding
process, the current goes to zero, and the machine continue to exhale for some time
(post-gas time).
The pre-gas time and post-gas time couldn’t be adjusted under 2T cycles mode.
4T Cycles
The 4T cycles is provided for long welding, for the 4T cycles graphs of current see the
picture below.
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