25 | P a g e
PATON
®
PSI PRO 315 A 400 V DC MIG/MAG TIG/MMA
5.2.1. OPERATIONAL CYCLE OF THE WELDING PROCESS - MIG / MAG 2T
This function is used to weld short and medium length welds. The function works as follows: after
pressing the button on the
MIG/MAG
holder, the control signal enters the control unit, the pre-
cleaning function of the shielding gas of the welded place is started.
[TIME PRE GAS]
, (the solenoid
valve opens), then the source switching signal and the wire feed motor are passed. At this moment the
welding process begins, at the same time the function of smooth voltage rise
[TIME POST GAS]
, and the
time of increasing the wire feed speed
[t.uP]
are developed, in addition, the pulse welding function can
be started. After releasing the button on the
MIG/MAG
holder, the voltage suppression function is
started at the end of welding
[TIME DOWN VOLTAGE]
and the dropping time of the wire feed speed
[t.dn]
and then the source is switched off. In the last stage, the final cleaning function is started with
the shielding gas of the welded space
[TIME POST GAS]
(the solenoid valve is closed with a delay).
5.2.2 CYCLE WELDING PROCESS - MIG / MAG FUNCTION 4T& 4T_
t, s
t, s
t, s
t, s
t, s
t, s