26 | P a g e
PATON
®
PSI PRO 315 A 400 V DC MIG/MAG TIG/MMA
FUNCTION 4T and _4T
a)
the standard button mode - 4Т
b)
an alternative button mode - _4Т
We use this function when welding long welds, it works as follows. After the first press of the button
on the
MIG/MAG
holder, the control signal enters the control unit, the pre-cleaning function is
activated with shielding gas
[TIME PRE GAS]
(The gas profession is opened). After the first release of
the
MIG/MAG
button, the source switching signal and the wire feed motor are transmitted. At this
moment the welding process begins, at the same time the function of smooth voltage rise
[TIME UP
VOLTAGE
]
, and the time of increasing the wire feed speed
[t.uP]
are developed, in addition we can
start the pulse welding function. After the second press of the button, the function
[TIME DOWN
VOLTAGE]
time of sinking the wire feed speed
[t.dn]
will be activated, the shielding gas will be
supplied uninterrupted until the button is released, then the final shielding process will start with the
shielding gas
[TIME POST GAS]
(the gas valve is closed with a delay).
In the alternative mode of the
_4T
button, we omit the first release of the button and this is different
from the standard
4T
mode. The control system does not wait for the first release of the
MIG/MAG
handle button but only simultaneously activates the pre-cleaning function with shielding gas
[TIME
PRE GAS]
,
The wire feed rise function
[t.uP]
and the welding process together with the voltage rise
function
[TIME UP VOLTAGE]
- it is very similar to the
2T
button mode. What's more, after the first
release of the button, the welding process proceeds unchanged. The end of the welding process is the
same as when the
4T
function is running. This mode is offered by
PATON
as above the standard
setting
5.3 FUNCTION OF PRETREATMENT GAS CLEANING
This function is necessary to protect the welding zone from the harmful effects of atmospheric air and
consists in pre-cleaning the welded place with shielding gas against electric arc ignition. By default,
the purging time
[TIME PRE GAS]
is set to
0.5 seconds
, this value can be changed at any time in its sole
discretion.
The procedure for changing the values of the operational parameters of the welding unit is described in
Section 6.1.
5.4 FUNCTION OF INCREASES THE WIRE FEED SPEED
This function is intended for smooth transition into welding mode for a limited time
[t.uP.]
, which
reduces spill of the weld pool and splashes when the arc is ignited when the wire is cold. Increased
time of smooth transition is used for the initial formation of the lake.
ATTENTION!
The longer the rise time, the lower the initial penetration,
which is why the function is recommended when laying long or medium length
joints. When grafting material, do not increase the value higher than 0.1s.