Tig-Comfort-Stop" Function - Fronius TransPocket 1500 Service Manual

"TIG-Comfort-
(1) welding
Stop" function
fig.12
Downslope:
The downslope is a function of the welding current selected and cannot be adjusted.
-
-
Example: At a medium welding current of 70 A the downslope amounts to 1.5 seconds.
(2) lift torch (3) lower
torch
I
150 A (= max.)
70 A
10 A (= min.)
TIG-Comfort-Stop
downslope at minimum welding current (10 A) .......... 1 secons
downslope at maximum welding current (150 A) ....... 2 seconds
The "TIG Comfort-Stop" function is
(4) keep
available on the TP 1500 TIG power
height
source if either the "TIG welding" or "TIG
(5) remove
pulsed arc" welding process is selected.
torch
When the "TIG Comfort-Stop" function is
selected in the Set-up Menu, crater-filling
is possible by means of a downslope.
The downslope is initiated by a defined
motion of the welding torch. The
downslope causes a ramp decrease of the
welding current to the minimum welding
current
current is then kept constant for 0.2
seconds before the arc extinguishes.
The defined motion of the welding torch
comprises the following functional
sequence: The "TIG Comfort-Stop"
function is activated by lifting the torch,
causing the arc to become visibly longer.
t
Lowering the torch then triggers the
downslope.
Fig.12 shows the sequence of defined
torch motions, and the welding current
curve.
0.2 s
t
1s
1,5 s
2 s
24
(10 A). The minimum welding