Paton ProMIG-200, User Manual

Page: 112 / 130

- 111 -
PATON ProMIG DC MMA/TIG/MIG/MAG
5.1 WELDING PROCESS CYCLE - MIG/MAG-2T
See paragraph 6.1 for the procedure for switching the value of any function
5.1.1 2T TORCH BUTTON FUNCTION
It is used for welding short and medium length welds. The function is as follows:
when the button on the torch is pressed, the control signal is given to the control unit, the
gas pre-purge function of the welding zone is triggered for the time [t.Pr] (gas valve opens),
then a signal is given to turn on the source and the wire feed motor. From this moment, the
welding process begins, at the same time the function of smooth reaching the welding mode
for the time [t.uP] is triggered, as well as additional functions (e.g., pulse mode) can be
triggered, all this according to the cycle of the welding process shown in the sequence
diagram in paragraph 5.1. After releasing the button, the function of the ramp-down of the
current and the wire feed speed for the time [t.dn] is triggered, and the source is turned off.
Next, the function of gas post-purge of the welding zone for the time [t.Po] is triggered (the
gas valve closes with a delay).