EWM M3.7X-O Operating Instructions Manual page 40

Functional characteristics
MIG/MAG welding
Latched special
Step 1
• Press and hold torch trigger
• Shielding gas is expelled (gas pre-flows)
• Wire f eed 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.
Tapping 1) 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.
Prevent tapping (brief press and release within 0.3 seconds)
1)
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
40
)
.
A
is given at the earliest after the set time t
A
.
END
Figure 5-22
.
A
= P
A
elapses and at the
START
.
B
) in the program sequence.
B
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15.12.2022
by
B