Operation – Lincoln Electric POWER WAVE IM713-B User 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".

I n d u c t a n c e i s i n v e r s e l y p r o p o r t i o n a l p i n c h . )

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