RECOMMENDED WORK CABLE
SIZES FOR ARC WELDING
A 15 ft. work cable is provided with the POWER
WAVE
®
300C. This cable is appropriately sized for all
of the POWER WAVE
®
300C’s welding procedures. If
the work cable needs to be replaced a similar quality
of cable should be used as excessive voltage drops
caused by undersized welding cables can result in
unsatisfactory welding performance. Always use the
largest work cables that is practical, and be sure all
connections are clean and tight.
Note:
Excessive heat in the weld circuit indicates
undersized cables and/or bad connections.
VOLTAGE SENSING OVERVIEW
Since the POWER WAVE
®
300C has the ability to be
in close proximity to the welding arc, the POWER
WAVE
®
300C does not require the use of remote
sense leads.
SEMI-AUTOMATIC WELDING
POLARITY
Most GMAW welding procedures use Electrode
Positive welding. For these applications, connect the
wire drive’s connection block to the positive (+) output
stud and connect the work lead to the negative (-) out-
put stud.
Some FCAW-SS does use Electrode Negative
Polarity. For these applications, connect the wire
drive’s connection block to the negative (-) output stud
and connect the work lead to the positive (+) output
stud.
POWER WAVE 300C
INSTALLATION
®
A-6
Although, depending upon the process, inductance
within the electrode and work cables can influence the
voltage apparent at the studs of the welder, and have
a dramatic effect on performance. Remote voltage
sense leads are used to improve the accuracy of the
arc voltage information supplied to the control pc board.
Sense Lead Kits (K940-xx) are available for this
purpose.
The POWER WAVE® 300C (Advanced All In One
ONLY) has the ability to automatically sense when
remote sense leads are connected. With this feature
there are no requirements for setting-up the machine to
use remote sense leads. This feature can be disabled
through the Weld Manager Utility (available at
www.powerwavesoftware.com) or through the set up
menu on the UI screen.
The advanced model has the ability to self
configure the electrode polarity based on the
UI selection.
