A method and apparatus for welding is disclosed. The method includes sensing
the
status of a trigger between an on position and an off position. A system latch
is set or released based on the trigger status and the latch status. The system
latches on when the trigger is held for a predetermined time (and the latch was
previously off). The latch is released when the trigger is pulled and released
when the latch was previously on. When the latch is off, pulling the trigger turns
the system on, and releasing the trigger before the predetermined time turns the
system off. The latch may also be released when welding current drops below a threshold.
The time might not start until after welding current is flowing. A welding wire
feed speed control potentiometer on a torch is also disclosed. The range of the
torch potentiometer is from a minimum to a value dependent on the control panel
welding wire feed speed. A run-in wire feed speed control is also disclosed. The
range of the run-in wire feed speed is from a minimum to a value dependent on the
control panel or torch welding wire feed speed.