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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, cold-
er arc while decreasing the wave control to less than 0
provides a softer, hotter arc. (See Figure A.5)
POWER WAVE 455/R
W
ave Control 0.00
Wav
e
Control +10.0
W
ave Control -10.0
FIGURE A.5
Current
Time