Lincoln Electric PIPEFAB Series Operator's Manual page 45

PIPEFAB™ WELDING SYSTEM INSTALLATION
WORK VOLTAGE SENSING
While most applica�ons perform adequately by sensing the work voltage directly at the output stud, the
use of a remote work voltage sense lead is recommended for op�mal performance. The remote WORK
sense lead (21) can be accessed through the four pin voltage sense connector located on the control
panel by using the K940 Sense Lead Kit. It must be a�ached to the work as close to the weld as
prac�cal, but out of the weld current path. For more informa�on regarding the placement of remote
work voltage sense leads, see in this sec�on en�tled "Voltage Sensing Considera�ons for Mul�ple Arc
Systems."
NEGATIVE ELECTRODE POLARITY
The PipeFab™ has the ability to automa�cally change the polarity of the power source. With this feature
there are no setup requirements for welding with nega�ve electrode polarity. Nega�ve polarity is only
available for TIG welding.
A-30