Operating Modes (Functional Sequences); Explanation Of Symbols - EWM Tetrix 451 AC/DC AW FW Operating Instructions Manual

Design and function
Configuring the welding machine for mechanical arc fusion welding
5.5.4

Operating modes (functional sequences)

The welding current operating mode must be set to latched on the welding machine. The welding
current is infinitely adjustable by means of torch triggers 3 and 4 (BRT 3 and BRT 4). Torch
trigger 2 (BRT 2) switches the welding current on or off.
Torch trigger 1 (BRT 1) switches the wire feed on or off. The operator can choose between three
operating modes (see following function sequences).
5.5.4.1

Explanation of symbols

Symbol Meaning
Press torch trigger
Release torch trigger
Tap torch trigger (press briefly and release)
Shielding gas flowing
I Welding output
Gas pre-flows
Gas post-flows
Non-latched
Special, non-latched
Latched
Special, latched
Time
t
Ignition program
P
START
Main program
P
A
P Reduced main program
B
End program
P
END
Slope duration from PSTART to PA
tS1
Wire feed
46
Figure 5-14
099-000115-EW501
20.11.2017