OPERATION
B-6 B-6
POWER WAVE 655/R
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WELDING MODE DESCRIPTIONS
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 corre-
sponding voltage.
Wave control adjusts the inductance of the waveshape.
(This adjustment is often referred to as "pinch". In -
ductance is inversely proportional to pinch.) In creasing
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.)
Current
Time
Wave Control +10.0
Wave Control -10.0
Wave Control 0.00
FIGURE B.2 – CV WAVE CONTROL CHARACTERISTICS