Tig Automatic Cut-Out - EWM alpha Q Progress drive 4D EF Operating Instructions Manual

Design and function
TIG welding
Latched special
Selection
•
Select latched special mode
Step 1
•
Press and hold torch trigger.
•
Shielding gas is expelled (gas pre-flows).
The arc is ignited using liftarc.
•
Welding gas flows at pre-selected setting in start program "P
Step 2
•
Release torch trigger.
•
Slope on main program "P
The slope on main program P
latest when the torch trigger is released.
Tapping can be used to switch to the reduced main program "P
back to the main program "P
Step 3
•
Press the torch trigger.
•
Slope to end program "P
Step 4
•
Release torch trigger.
•
Arc is extinguished.
•
Gas post-flow time elapses.
5.9.4.2

TIG automatic cut-out

The welding machine ends the ignition process or the welding process with an
•
ignition fault (no welding current flows within 5 s after the start signal)
•
arc interruption (arc is intrerrupted for longer than 5 s)
82
Figure 5-49
.
".
A
is given at the earliest after the set time t
A
".
A
".
END
".
START
elapses and at the
START
". Repeated tapping will switch
B
099-005459-EW501
17.12.2015