39
Setting the AC Balance on Front Control Panel
Set the AC Balance by pressing the encoder to cycle
through to illuminate the AC Balance icon. The syn-
ergic software will always provide an ideal setting at “0” no
matter what Amperage you have set. Adjust the AC Balance
by turning the encoder knob, as you adjust further into nega-
tive figures the machine will provide more penetration and a
narrower arc. Adjusting into positive figures will increase the
cleaning action and result in a wider arc. You can adjust the
AC Balance away from the default “0” position down to -10
for maximum Electrode Negative and up to +10 for maximum
Electrode Positive setting.
The below table shows the % of time the Electrode is in
Negative Polarity.
EVEN BALANCE
Even Penetration - Stable Arc
LESS POSITIVE
BALANCE
More Penetration - Faster Welding
More Electrode Capacity
MORE POSITIVE
BALANCE
Less Penetration - Oxide Cleaning
Less Electrode Capacity
75%
current
Balance Adjusted for Better Penetration - Cooler Tungsten
More time spent in the negative _ polarity cycle
Amperage
Range
% of Electrode Negative
(EN) at Default 0
AC Balance Range (EN)
-10 ~ 10+
5 ~ 80A
40%
30%~50%
80 ~ 150A
35%
25%~45%
151 ~ 200A
30%
20%~40%
201~ 250A
25%
15%~35%
250 ~ 315A
20%
10%~30%
XA-TIG320 ACDC
reverse polarity
direct polarity
Knowing how your AC TIG machine measures and displays its AC Balance is important.
Different machine manufacturers express the AC Balance by referencing the percentage (%) of time spent in either the
Electrode Positive or Electrode Negative phase of the AC cycle and often do not tell you which they are referring to
when AC Balance is displayed. You may need to check your operating manual or test the AC Balance control of your
machine to confirm if the machine is displaying the measure of Electrode Positive or Electrode Negative
IMPORTANT: Xcel-Arc, Razorweld and Viper AC TIG welding machines with Electronic AC Balance Control
display the AC Balance by % of time spent in the Electrode Negative phase of the AC cycle
Synergic AC Balance -
The level of welding amperage selected affects where the ideal AC Balance point is to produce
a stable arc that provides good cleaning action and good penetration. In conventional machines, as you increase or
decrease the Amperage, you will need to adjust the AC Balance to maintain a good arc characteristic. With the use of
software, our MCU digital control interface provides a simple, yet highly effective Synergic solution to setting the ideal
AC Balance. As you set the Amperage to suit your job conditions, the machine automatically adjusts the AC Balance to
suit. This default point is shown as “0” on the AC Balance display and the machine also provides a window of adjustment
either side of this default “0” position. You can adjust for more Electrode Negative for a more penetrating, narrower arc
or adjust more to the Electrode Positive side for a more cleansing arc.
KNOWING HOW YOUR MACHINE MEASURES ITS AC BALANCE
Summary of Contents for RazorWeld Razor TIG320 ACDC
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