B-7 OPERATIONB-7
CV WELDING
Synergic CV:
For each wire feed speed, a corresponding voltage is preprogrammed into the machine through special soft- ware at the factory. The nominal preprogrammed volt- age is the best average voltage for a given wire feed speed, but may be adjusted to preference. With syner- gic programs, when the wire feed speed changes the Power Wave will automatically adjust the voltage cor- respondingly to maintain similar arc characteristics throughout the WFS range.
Non Synergic CV:
This type of CV mode behaves more like a conven- tional CV power source. Voltage and WFS are inde- pendent adjustments. Therefore to maintain the arc characteristics, the operator must adjust the voltage to compensate for any changes made to the WFS.
All CV Modes:
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 0.0 results in a crispier, colder arc while decreasing the wave control to less than 0.0 provides a softer, hotter arc.
(See Figure B.2 for CURRENT WAVE FORM (CV)
FIGURE B.2
Wave Control +10.0 
Wave Control 0.00
Current
Wave Control -10.0
Time
