Design and function
MIG/MAG welding
50
099-004833-EW501
22.04.2013
Latched with changing welding method (process switching)
Figure 5-17
1st cycle:
• 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 flows
• Start the process alternation starting with process P
A
:
The welding processes alternate between the process P
A
stored in the JOB and the opposite process
P
B
at the specified times (t
2
and t
3
)
If a standard process is stored in the JOB, this means that there is a permanent alternation
between the processes, starting with the standard process and followed by the pulse process.
The same applies if the situation is reversed.
2nd cycle:
• Release torch trigger (no effect)
3
rd
cycle:
• Press torch trigger (no effect)
4
th
cycle:
• Release torch trigger
• Super pulse function is ended
• WF motor stops
• Arc is extinguished after the pre-selected wire burn-back time elapses
• Gas post-flow time elapses
NOTE
You can enable and edit this function using the PC300.NET software or in the program
sequence of the welding machine control.
• Refer to the PC300.NET operating instructions.
• Refer to the MIG/MAG program sequence ("Program-Steps" mode) chapter.
t
t
t
I
1.
2.
3.
4.
P
A
P
B
