EWM drive 4X IC D HP Operating Instructions Manual page 51

Latched special
Step 1
•
Press and hold torch trigger
•
Shielding gas is expelled (gas pre-flows)
• Wire feed motor runs at "creep speed".
•
Arc ignites after the wire electrode makes contact with the workpiece, welding current is flowing (start
program P
START
Step 2
•
Release torch trigger
•
Slope to main program P
The slope on main program P
latest when the torch trigger is released.
1)
Tapping can be used to change over to the reduced main program P
Repeated tapping will switch back to the main program P
Step 3
•
Press and hold torch trigger
•
Slope to end program P
Step 4
•
Release torch trigger
•
WF motor stops.
•
Arc is extinguished after the preselected wire burn-back time expires.
•
Gas post-flow time elapses.
1)
Prevent tapping (brief press and release within 0.3 seconds)
If the welding current is to be prevented from switching over to the reduced main program P
tapping, the parameter value for WF3 needs to be set to 100% (P
099-005507-EW501
13.09.2018
)
.
A
is given at the earliest after the set time t
A
.
END
Design and function
Figure 5-39
.
A
= P
A
MIG/MAG welding
elapses and at the
START
.
B
) in the program sequence.
B
by
B
51