Lincoln Electric PIPEFAB Series Operator's Manual page 83

PIPEFAB™ WELDING SYSTEM OPERATION
2-STEP TRIGGER: SPECIAL CONSIDERATIONS
The weld sequence response depends upon when the trigger is pulled and released and whether or not
START or CRATER are ac�ve.
An example sequence:
Pull the trigger to start feed of wire. When arc is established the sequencer will begin START/UPSLOPE.
If trigger is released during UPSLOPE and CRATER/DOWNSLOPE is ac�ve, the machine will begin
CRATER/DOWNSLOPE and sloping down over the CRATER �me, regardless of when the trigger release
occurred.
If the CRATER is disabled and the trigger is released during START/UPSLOPE, the sequencer will move to
the BURNBACK state to end the weld.
B-32