Lincoln Electric IM713 POWER WAVE 655R - Manual (Page 22)

B-5 OPERATION B-5
CONSTANT VOLTAGE WELDING
For each wire feed speed, a corresponding voltage is
preprogrammed into the machine through special soft-
ware at the factory. The preprogrammed voltage is the
best average voltage for a given wire feed speed.
With synergic programs, when the wire feed speed
changes the Power Wave
® will automatically adjust
the voltage correspondingly.
Wave control adjusts the inductance of the wave-
shape. (This adjustment is often referred to as "pinch".
Inductance is inversely proportional pinch.)
Increasing wave control greater than 0 results in a
harsher, colder arc while decreasing the wave control
to less than 0 provides a softer, hotter arc. (See
Figure B.2)
POWER WAVE ® 655/R
FIGURE B.2
Current
Time