EWM alpha Q 352 puls MM Operating Instructions Manual page 58

Design and function
Definition of MIG/MAG welding tasks
Non-latched operation with superpulse
Pulse arc welding machines only.
Step 1
•
Robot issues the start signal to the power source.
•
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 super pulse function beginning with main program P
The welding parameters switch between main program P
specified times.
Step 2
•
Robot issues the stop signal to the power source.
•
Super pulse function is ended.
•
Wire feed motor stops.
•
Arc is extinguished after the pre-selected wire burn-back time elapses.
•
Gas post-flow time elapses.
58
NOTE
Figure 5-23
:
A
and the reduced main program P
A
at the
B
099-005366-EW501
31.07.2014