Non-Latched Mode - EWM Tetrix 351 AC/DC Synergic FW Operating Instructions Manual

5.3.11.2 Non-latched mode

Selection
Sequence
1st cycle:
•
Press torch trigger 1 and hold down.
•
Gas pre-flow time
•
HF ignition pulses jump from the electrode to the workpiece. The arc ignites.
•
The welding current flows and immediately assumes the value of the ignition current
•
HF switches off.
•
The welding current ramps up to the main current
If torch trigger 2 is pressed together with torch trigger 1 during the main current phase, the welding cur-
rent decreases to the secondary current
If torch trigger 2 is released, the welding current increases again to the main current AMP in the set slope
time . The parameters
2nd cycle:
•
Release torch trigger 1.
•
The main current falls to the end-crater current
If the 1st torch trigger is pressed during the down-slope time,
the welding current returns to the set main current AMP
•
Main current reaches the end-crater current
•
Set gas post-flow time
When the foot-operated remote control is connected, the machine switches automatically to non-latched
operation. The up- and down-slopes are switched off.
099-000109-EW501
23.08.2018
Figure 5-22
Figure 5-23
elapses.
(AMP%) in the set slope time
and can be set in the Expert menu (TIG) > see 5.3.17 chapter.
elapses.
Design and function
(AMP) in the selected up-slope time
(minimum current) in the set down-slope time
; the arc is extinguished.
TIG welding
.
.
.
47
.